Academic literature on the topic 'LCA, life cycle assessment, LCC, life cycle cost'
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Journal articles on the topic "LCA, life cycle assessment, LCC, life cycle cost"
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Kulkarni, Prof Avadhut. "Life Cycle Cost Assessment of Autoclaved Aerated Concrete Blocks." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 30, 2021): 3389–93. http://dx.doi.org/10.22214/ijraset.2021.35712.
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In the Development of construction materials Sustainable use of natural resources has become a necessity in India. In this project work, an LCA study is carry out for an AAC block production for environmental assessment. In addition to the LCA, the Life Cycle Cost (LCC) analysis is also applied for economic assessment. The LCA is performed according to ISO 14040. Firstly, a cradle to gate LCA method performed for one meter cube of Autoclaved Aerated Concrete Block. The LCCA method include in the OpenLCA software which is choose to calculate impact categories i.e. abiotic depletion, global warming potential, acidification potential, eutrophication potential, Eco toxicity, ozone depletion potential and photochemical oxidation potential. The last few decades, several approaches have been developed by agencies and institutions for Bricks Life Cycle Cost Analysis (LCCA). The LCC analysis was performed by developing a price model for internal and external cost categories within the software.
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Grzyl, Beata, and Agata Siemaszko. "The Life Cycle Assessment and Life Cycle Cost in public works contracts." E3S Web of Conferences 44 (2018): 00047. http://dx.doi.org/10.1051/e3sconf/20184400047.
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An important goal, implemented by EU countries under the Europe 2020 strategy, is sustainable development, which includes supporting economy that effectively uses natural and environmentally friendly resources. Solutions in this area are also promoted in tender proceedings in the area of public procurement. The LCA (Life Cycle Assessment) and LCC (Life Cycle Cost) analysis are indicated as the basis for decision-making by awarding entities. In the article, the authors present on the selected example the benefits of using LCA and LCC. Based on the documents analysis for 350 selected public procurement procedures conducted in Poland in 2017, the authors examine types, average weights and frequency of application of non-price criteria for the selection of the best offer in practice. Based on the results of the research, are formulated conclusions.
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Irawati, Desrina Yusi, and Melati Kurniawati. "Life Cycle Assessment dan Life Cycle Cost untuk Serat Kenaf." Jurnal Rekayasa Sistem Industri 9, no. 3 (October 27, 2020): 213–24. http://dx.doi.org/10.26593/jrsi.v9i3.4109.213-224.
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Kenaf fiber from the kenaf plant is the excellent raw material for industry because of the various diversified products it produces. To develop sustainable kenaf fiber, information is needed on the strengths and weaknesses of kenaf cultivation systems with respect to productivity and environmental impact. Therefore, a comprehensive environmental and economic impact assessment was conducted from cultivating kenaf to kenaf fiber. The environmental impact assessment uses the Life Cycle Assessment (LCA) method and economic calculations from the life cycle of kenaf to kenaf fiber to collectors use the Life Cycle Cost (LCC) method. The calculation of environmental impacts is in accordance with the stages of ISO 14040, using a single score assessment. The LCA results show that the treatment stage is the highest contributor of the three groups of impact categories. The highest to the lowest in the impact category group that was influenced by the treatment stage were resources with a value of 21.4 mPt, human health with a value of 8.76 mPt, and ecosystem quality with a value of 1.91 mPt. The cost identified through the LCC is Rp. 6,088,468,333, NVP and B/Cnet are positive. The results of the sensitivity analysis if there is a reduction in production> 6%, the business is still profitable and can be run.
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Alaloul, Wesam Salah, Muhammad Altaf, Muhammad Ali Musarat, Muhammad Faisal Javed, and Amir Mosavi. "Systematic Review of Life Cycle Assessment and Life Cycle Cost Analysis for Pavement and a Case Study." Sustainability 13, no. 8 (April 14, 2021): 4377. http://dx.doi.org/10.3390/su13084377.
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Development of the pavement network systems, which is inevitable due to the rapid economic growth, has increasingly become a topic of significant concern because of the severe environmental impacts of road expansion. For achieving the sustainable development goals (SDGs), the policies and actions towards the pavements’ life cycle assessment (LCA) and life cycle cost analysis (LCCA) must be carefully assessed. Consequently, the purpose of this review is to present an overview of LCA and LCCA used in pavement engineering and management. Through the quality control of PRISMA, fifty-five most relevant documents were extracted for a thorough investigation. The state of the art review reveals that a limited number of the papers considered environmental impacts of the pavements. Consequently, to assess the environmental impact cost, a conceptual framework was developed to better consider the LCA and LCCA on various aspects of the pavement projects including the sustainability aspects. Besides, a case study was given to validate the literature review towards proposing a novel framework for the incorporation of environmental impact cost.
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Tighnavard Balasbaneh, Ali, Abdul Kadir Bin Marsono, and Emad Kasra Kermanshahi. "Balancing of life cycle carbon and cost appraisal on alternative wall and roof design verification for residential building." Construction Innovation 18, no. 3 (July 9, 2018): 274–300. http://dx.doi.org/10.1108/ci-03-2017-0024.
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Purpose The purpose of this study is to describe life cycle cost (LCC) and life cycle assessment (LCA) evaluation for single story building house in Malaysia. Two objective functions, namely, LCA and LCC, were evaluated for each design and a total of 20 alternatives were analyzed. Two wall schemes that have been adopted from two different recent studies toward mitigation of climate change require clarification in both life cycle objectives. Design/methodology/approach For this strategic life cycle assessment, Simapro 8.3 tool has been chosen over a 50-year life span. LCC analysis was also used to determine not only the most energy-efficient strategy, but also the most economically feasible one. A present value (PV)-based economic analysis takes LCC into account. Findings The results will appear in present value and LC carbon footprint saving, both individually and in combination with each other. Result of life cycle management shows that timber wall−wooden post and beam covered by steel stud (W5) and wood truss with concrete roof tiles (R1) released less carbon emission to atmosphere and have lower life cycle cost over their life span. W5R1 releases 35 per cent less CO2 emission than the second best choice and costs 25 per cent less. Originality/value The indicator assessed was global warming, and as the focus was on GHG emissions, the focus of this study was mainly in the context of Malaysian construction, although the principles apply universally. The result would support the adoption of sustainable building for building sector.
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Xue, Zhuyuan, Hongbo Liu, Qinxiao Zhang, Jingxin Wang, Jilin Fan, and Xia Zhou. "The Impact Assessment of Campus Buildings Based on a Life Cycle Assessment–Life Cycle Cost Integrated Model." Sustainability 12, no. 1 (December 30, 2019): 294. http://dx.doi.org/10.3390/su12010294.
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The development of higher education has led to an increasing demand for campus buildings. To promote the sustainable development of campus buildings, this paper combines social willingness-to-pay (WTP) with the analytic hierarchy process (AHP) based on the characteristics of Chinese campus buildings to establish a life cycle assessment–life cycle cost (LCA–LCC) integrated model. Based on this model, this paper analyses the teaching building at a university in North China. The results show that the environmental impacts and economic costs are largest in the operation phase of the life cycle, mainly because of the use of electric energy. The environmental impacts and economic costs during the construction phase mainly come from the building material production process (BMPP); in this process, steel is the main source. Throughout the life cycle, abiotic depletion-fossil fuel potential (ADP fossil) and global warming potential (GWP) are the most prominent indexes. Further analysis shows that these two indexes should be the emphases of similar building assessments in the near future. Finally, this study offers suggestions for the proposed buildings and existing buildings based on the prominent problems found in the case study, with the aim to provide reference for the design, construction, and operation management of similar buildings.
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Ahmed, Inas Mahmood, and Konstantinos Daniel Tsavdaridis. "Life cycle assessment (LCA) and cost (LCC) studies of lightweight composite flooring systems." Journal of Building Engineering 20 (November 2018): 624–33. http://dx.doi.org/10.1016/j.jobe.2018.09.013.
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Petrillo, Antonella, Fabio De Felice, Elio Jannelli, Claudio Autorino, Mariagiovanna Minutillo, and Antonio Lubrano Lavadera. "Life cycle assessment (LCA) and life cycle cost (LCC) analysis model for a stand-alone hybrid renewable energy system." Renewable Energy 95 (September 2016): 337–55. http://dx.doi.org/10.1016/j.renene.2016.04.027.
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Santamaria, Belen Moreno, Fernando del Ama Gonzalo, Matthew Griffin, Benito Lauret Aguirregabiria, and Juan A. Hernandez Ramos. "Life Cycle Assessment of Dynamic Water Flow Glazing Envelopes: A Case Study with Real Test Facilities." Energies 14, no. 8 (April 14, 2021): 2195. http://dx.doi.org/10.3390/en14082195.
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High initial costs hinder innovative technologies for building envelopes. Life Cycle Assessment (LCA) should consider energy savings to show relevant economic benefits and potential to reduce energy consumption and CO2 emissions. Life Cycle Cost (LCC) and Life Cycle Energy (LCE) should focus on investment, operation, maintenance, dismantling, disposal, and/or recycling for the building. This study compares the LCC and LCE analysis of Water Flow Glazing (WFG) envelopes with traditional double and triple glazing facades. The assessment considers initial, operational, and disposal costs and energy consumption as well as different energy systems for heating and cooling. Real prototypes have been built in two different locations to record real-world data of yearly operational energy. WFG systems consistently showed a higher initial investment than traditional glazing. The final Life Cycle Cost analysis demonstrates that WFG systems are better over the operation phase only when it is compared with a traditional double-glazing. However, a Life Cycle Energy assessment over 50 years concluded that energy savings between 36% and 66% and CO2 emissions reduction between 30% and 70% could be achieved.
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Liu, Jingkuang, Zhengjie Huang, and Xuetong Wang. "Economic and Environmental Assessment of Carbon Emissions from Demolition Waste Based on LCA and LCC." Sustainability 12, no. 16 (August 18, 2020): 6683. http://dx.doi.org/10.3390/su12166683.
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In China, urban renewal and renovation projects generate a large amount of demolition waste every year, the disposal of which has certain impacts on the environment. Therefore, more effective policies should be implemented for the management of demolition waste. This study combines life cycle assessment (LCA) with life cycle costing (LCC) to analyze the environmental and economic drivers of three different waste disposal scenarios in Guangzhou, China, in the context of carbon trading: S1 (landfilling), S2 (recycled aggregate), and S3 (recycled powder). In this study, the carbon emissions of demolition waste were obtained by LCA, and the carbon emission cost was calculated based on the carbon price in the carbon trading market of Guangdong Province. The LCA results showed that waste recycling can greatly reduce carbon emissions. The results showed that compared to S1, S2 reduced 6.790 × 108 kg CO2 eq. Additionally, S3 reduced 4.172 × 108 kg CO2 eq. compared to S2. The LCC results show that waste recycling can greatly reduce the total costs of the demolition sector, while the production of recycled powder can generate 57.35% of the revenue from recycled aggregate to the recycling plant. This study combines LCA and LCC, and considers environmental factors to assess the economic results using carbon emissions cost, thereby forging a new exploration method in the field of life cycle theory. The findings of this study could provide a basis for the formulation of a new demolition waste management policy. In the case of the gradual implementation of carbon trading, it could also provide new ideas for current demolition waste treatment from economic and environmental perspectives.
Dissertations / Theses on the topic "LCA, life cycle assessment, LCC, life cycle cost"
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Glave, Antonio. "Applicazione delle metodologie LCA ed LCC per la valutazione ambientale ed economica della produzione del pellet realizzato tramite scarti agricoli di potature degli uliveti." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8633/.
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Nel seguente lavoro è stata sviluppata una analisi ambientale ed economica del ciclo di vita del pellet, realizzato con scarti agricoli dalle potature degli uliveti.
L’obiettivo di tale lavoro è dimostrare se effettivamente l’utilizzo del pellet apporti vantaggi sia dal punto di vista ambientale sia da quello economico.
In tale progetto si sviluppano quindi un LCA, Life cycle analysis, e un LCC, Life Cycle Cost, secondo gli steps standard suggeriti da tali metodologie.
Per effettuare l’analisi del ciclo di vita è stato utilizzato il software Simapro che ha permesso di valutare gli impatti ambientali sulle varie categorie di impatto incluse.
In particolare sono stati considerati due metodologie, una midpoint ed una endpoint, ossia l’Ecoindicator 99 e il CML2 baseline 2000. Per le valutazioni finali è stata poi utilizzata la normativa spagnola sugli impatti ambientali, BOE 21/2013 del 9 dicembre, che ci ha permesso di caraterizzare le varie categorie d’impatto facendo emergere quelle più impattate e quelle meno impattate. I risultati finali hanno mostrato che la maggior parte degli impatti sono di tipo compatibile e moderato; pochi, invece, sono gli impatti severi e compatibili, che si riscontrano soprattutto nella categoria d’impatto “Fossil Fuels”.
Per quanto riguarda invece l’analisi economica, si è proceduto effettuando una valutazione iniziale fatta su tutto il processo produttivo considerato, poi una valutazione dal punto di vista del produttore attraverso una valutazione dell’investimento ed infine, una valutazione dal punto di vista del cliente finale.
Da queste valutazioni è emerso che ciò risulta conveniente dal punto di vista economico non solo per il produttore ma anche per l’utente finale. Per il primo perché dopo i primi due anni di esercizio recupera l’investimento iniziale iniziando ad avere un guadagno; e per il secondo, poiché il prezzo del pellet è inferiore a quello del metano.
Quindi, in conclusione, salvo cambiamenti in ambito normativo ed economico, l’utilizzo del pellet realizzato da scarti di potature di uliveti risulta essere una buona soluzione per realizzare energia termica sia dal punto di vista ambientale, essendo il pellet una biomassa il cui ciclo produttivo non impatta severamente sull’ambiente; sia dal punto di vista economico permettendo al produttore introiti nell’arco del breve tempo e favorendo al cliente finale un risparmio di denaro sulla bolletta.
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Andersson, Lucas, and Tim Fjällström. "LCC och LCA-baserad jämförelse mellan batteridriven och bensindriven produkt." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96203.
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Många länder försöker minska sitt användande av fossila bränslen och istället använda sig utav förnyelsebara alternativ. Ett vanligt sätt att göra detta är att gå från bensindrivna motorer till eldrivna. Denna studie undersöker därför produkter ur samma produktsortiment som har samma grundfunktion och användningsområde men olika drivmedel. Syftet med detta är att få ökad förståelse för produkternas kostnader samt öka förståelsen för hur deras drift påverkar miljön. Studien genomfördes som en fallstudie på Swepac i Ljungby. Studiens genomförande följer delar ur LCC, LCA, CELA och break-even metoder för att kunna uppnå syftet. Miljöpåverkan mäts i koldioxidekvivalenter och en omräkningsfaktor används för att omvandla utsläppen till ett monetärt värde som går att använda i beräkningar av kostnader. Resultatet visar att ett break-even mellan maskinerna uppstår efter 6.9 år, livslängden är dock 5 år. Både miljöpåverkan, drift- och underhållskostnader är lägre för den eldrivna, dock gör den stora skillnaden i inköpspris att det tar lång tid innan ett break-even uppstår.Many countries are trying to reduce the usage of fossil fuels and instead they are trying to find renewable alternatives. A common way to do this is to go from gasoline engines to electric engines. The purpose of the study is to gain a greater understanding of the products costs and environmental impact during their usage. The study was conducted as a case study at Swepac, Ljungby. The study’s implementation follows parts from LCC, LCA, CELA and the breakeven method in order to achieve the purpose. The environmental impact is measured in carbon dioxide equivalents and a conversion factor is used to convert the emissions to a monetary value that can be used in calculations of costs. The result shows that breakeven between the machines arises after 6.9 years, however, the service life is only 5 years. Both environmental impact, operating and maintenance costs is lower for the electrical option, however, the big difference in purchase price makes it take a long time for a breakeven to occur.
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Rydin, Sara, and Sofia Olsson. "En jämförelse av koldioxidutsläpp i en byggnads klimatskal beroende på val av isoleringsmaterial." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik och belysningsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-45519.
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Syfte: En betydande del av Sveriges totala växthusgaser kommer ifrån bygg- och fastighetssektorn. Då livscykelperspektivet är ett högaktuellt ämne är det intressant att implementera LCA i bygg- och fastighetsbranschen och genomföra en analys på de isoleringsmaterial som anses vara de traditionella inom branschen. För att resultatet av LCA ska vara applicerbart för företag i branschen är det också av intresse att veta hur LCC skiljer sig mellan de jämförda isoleringsmaterialen. För att resultatet ska vara lätt att identifiera är en sammanställning av kostnad i kontrast till koldioxidutsläpp av intresse. Målet med studien är att bidra med kunskap om olika isoleringsmaterials miljöpåverkan utifrån ett livscykelperspektiv. Likaså att se hur stor skillnad det blir i kostnad mellan isoleringsmaterial med mer eller mindre koldioxidutsläpp, där en förutsättning är att U-värdet är detsamma för de jämförda materialen. Metod: De vetenskapliga metoderna för studien har varit litteraturstudie, fallstudie och dokumentanalys. Som komplement till dessa har beräkningar, livscykelanalyser och livscykelkostnadsanalyser genomförts. Resultat: Lösull av cellulosa minskar koldioxidutsläppet för isoleringen i vindsbjälklag med 94,6 procent till en kostnadsökning motsvarande 30 procent jämfört med stenull. En skiva av cellulosa minskar koldioxidutsläppet för isoleringen i yttervägg med 94,4 procent till en kostnadsökning motsvarande 7 procent jämfört med stenull. En bottenplatta av cellglas minskar koldioxidutsläppen med 65,1 procent till en kostnadsökning motsvarande 55,2 procent jämfört med en bottenplatta av cellplast och betong. Konsekvenser: • Isolering av cellulosa har ett betydligt lägre koldioxidutsläpp än stenull. • Livscykelkostnad för cellulosa är något högre än för stenull. • Utifrån denna studie rekommenderas att prioritera miljö framför kostnad och därför använda cellulosa som isolering i byggnader. • Cellglas är ett miljömässigt hållbart alternativ till cellplast och betong vid grundläggning. • Cellglas har en högre livscykelkostnad än cellplast och betong vid grundläggning. • Utifrån denna studie rekommenderas att prioritera miljö framför kostnad och därför överväga att använda cellglas vid grundläggning av byggnader. Begränsningar: Undersökningen har inte tagit hänsyn till transporter av material. Livscykelanalyserna är gjorda på 1 m2 material med en bestämd tjocklek. Endast två isoleringsalternativ per byggnadsdel har jämförts och hänsyn till materialens fukt-, ljud och brandegenskaper har inte beaktats. Studien är kvantitativ.Purpose: A big part of the greenhouse gases from Sweden comes from the construction and real estate sector. Since the life cycle perspective is a high currant subject it is interesting to implement LCA to the building industry and perform such an analysis on the insulation materials that are traditionally used in the building industry. To make the result of the LCA applicable for companies in the industry it is also of interest to know how the LCC differs between the compared insulation materials. For the result to be easy to identify it is necessary to make a compilation of the cost in contrast to the carbon dioxide emissions. The goal of this study is to contribute with knowledge about the environmental impact from a life cycle perspective of different insulation materials. As well to see how the cost might change between different insulation materials with more or less carbon dioxide emissions, where a presumption is that the U-value is the same for the compared materials. Method: The scientific methods for the study have been literature study, case study and document analysis. As a complement, calculations, life cycle assessments and life cycle cost analysis have been made. Findings: Loose fill insulation of cellulose reduces the carbon dioxide emissions for insulation in the attic with 94,6 percent to a cost increase of 30 percent compared to stone wool. A board of cellulose reduces the carbon dioxide emissions for insulation in the external wall with 94,4 percent to a cost increase of 7 percent compared to stone wool. A foundation with foamglas reduces the carbon dioxide emissions with 65,1 percent to a cost increase of 55,2 percent compared to a foundation of EPS and concrete. Implications: • Insulation of cellulose have much lower carbon dioxide emissions than stone wool. • Life cycle cost for cellulose are a bit higher than for stone wool. • From this study the recommendation is to prioritize the environment above the cost and therefor use cellulose as insulation in buildings. • Foamglas is a more sustainable alternative to EPS and concrete for foundations. • Foamglas have a higher life cycle cost than EPS and concrete for foundations. • From this study the recommendation is to prioritize the environment above the cost and therefore consider to use foamglas for foundations. Limitations: The study has not included transportations of the materials. The life cycle assessments are made on 1 m2 of material with a fixed thickness. Only two insulation materials in each building part have been analyzed and no regards have been taken to the materials moist, sound, and fire attribute. The study is quantitative.
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Caputo, Marco. "Valutazione economico - ambientale LCC-LCA per la riqualificazione energetica dell’involucro opaco di un edificio scolastico sito in Melissano (LE)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
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Lo studio affronta il problema della sostenibilità ambientale nel settore delle costruzioni con riferimento all’involucro opaco di un edificio scolastico situato nella provincia di Lecce mediante la messa a punto di uno strumento che combina metodi in ottica Life Cycle Thinking e con particolare attenzione alla specificità climatica dell’area mediterranea.
Al fine di effettuare una valutazione efficace, si è scelto di eseguire una comparazione integrata considerando le tecniche costruttive a maggiore diffusione sul territorio nazionale, realizzate assemblando muratura e isolanti. Queste soluzioni, sono state confrontate con lo stato di fatto originario dell’edificio, in modo tale da poter verificare l’effettivo miglioramento.
La sostenibilità ambientale è stata valutata calcolando il contenuto di energia primaria e di CO2 dei vari elementi tecnici mentre la sostenibilità economica è stata valutata attraverso l’individuazione e la previsione di tutti i costi che si suppone di sostenere durante il ciclo di vita dell’edificio.
La simulazione ha portato a risultati confrontabili che hanno permesso di trarre conclusioni e valutazioni sulle diverse tipologie costruttive analizzate e utilizzabili per la riqualificazione degli edifici. In particolare è stato riscontrato che, nel contesto mediterraneo, risulta dominante il problema del surriscaldamento estivo, avente un peso non inferiore a quello del riscaldamento invernale.
Si è dimostrato quindi che, in un’ottica di sostenibilità, la scelta della componente di involucro opaco implica una valutazione che tenga in considerazione molteplici aspetti, superando il comune approccio che tiene in conto generalmente solo i parametri del minor costo di costruzione e della efficace performance di isolamento termico per rispondere alla prescrizione normativa.
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Cangini, Francesco. "Valutazione della sostenibilità economico-ambientale della sopraelevazione di un edificio residenziale tramite l'applicazione dei metodi LCA e LCC." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
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L’elaborato si pone l’obiettivo di analizzare, sia sul piano economico che su quello ambientale, un intervento di manutenzione straordinario che ha previsto l’ampiamento e la sopraelevazione di un fabbricato esistente, sull’intero ciclo di vita della nuova struttura.
Dapprima sono state presentate le due metodologie utilizzate, rispettivamente il Life Cycle Assessment per la valutazione ambientale e il Life Cycle Cost per la valutazione economica, esaminando le tecniche in maniera teorica, dall’evoluzione storica alle normative odierne.
Dopodiché è stato esposto il caso di studio, presentando tre differenti metodologie costruttive ipotizzate per l’intervento: la prima stratigrafia è stata ipotizzata in blocchi di laterizio portante e isolamento in polistirene espanso, la seconda alternativa consiste in una struttura a telaio in calcestruzzo armato con blocchi di laterizio con funzione di tamponamento e isolante in polistirene espanso mentre l’ultima stratigrafia prevede una struttura portante in legno XLAM con isolante in lana di legno.
Al fine di poter computare al meglio le prestazioni economiche ed ambientali delle tre differenti strutture è stato effettuato anche un calcolo dei consumi e delle prestazioni in fase di utilizzo delle metodologie costruttive con l’ausilio di un software di certificazione energetica.
Il comportamento dell’intera vita utile delle tre stratigrafie è stato infine analizzato e confrontato utilizzando la tecnica LCA per valutare le performance energetiche, gli impatti ambientali e le emissioni inquinanti, e tramite la metodologia LCC per analizzare prestazioni economiche.
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Fline, Pierre. "Preliminary design and multi-criteria analysis of solutions for widening an existing concrete bridge : Case of the Bridge of Chaillot in Vierzon (France)." Thesis, KTH, Bro- och stålbyggnad, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-40479.
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Europe experienced the destruction of numerous infrastructures during World War II, followed by a reflation and a strong economic growth during the next two decades allowing a more perennial and durable situation. A classical bridge lasting in general around 80 years, one should observe that these constructions built after the war will have to be either replaced either seriously strengthened in a few years. Besides, since the needs also vary over time, transportation infrastructures built during those years might not be adapted to the actual needs anymore – some bridges might thus have to be widened. A case study has been chosen in order to simulate under which conditions the widening of such a bridge can be performed. This road bridge, located in Vierzon in France, is rather simple since it is made of simply supported prestressed concrete beams and of reinforced concrete piers. It has been chosen in particular for its reduced size – three spans of 30 m each and two road lanes – that corresponded well to this project. Based on some data provided when the bridge was initially built and on a visual inspection, this project suggests six technical solutions to double the actual amount of lanes. An evaluation of the performance of the solutions according to three criteria – durations of works, cost of the works, and environmental impact – is made in order to give recommendations regarding the optimal solution. The results show that in spite of being installed quickly, adding steel beams is more expensive and has a greater impact on the environment than adding prestressed concrete beams. Regarding the modification of piers, the solution suggesting widening the existing piers is preferable than adding new extra piers according to all the criteria. Consequently, among all the solutions analysed, the optimal one is also the simplest one. Finally, the limits of the study and some suggestions for improvements are indicated.
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Larsson, Emelie, and Anton Lydell. "Livscykelanalys och livscykelkostnadsanalys av nyckelfärdiga flerbostadshus : En jämförelse mellan betong- och träkonstruktion." Thesis, Linköpings universitet, Energisystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-150099.
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I Sverige står bostadssektorn för mer än en tredjedel av landets energianvändning. Byggnader måste minska sin energianvändning för att således kunna uppfylla framtida lagkrav om maximal tillåten energianvändning, men också för att minska påverkan till global uppvärmning. Ytterligare en problematik som råder, däribland i Sverige, är bostadsbrist. Kommunala bostadsbolag står inför utmaningen att kunna bygga bostäder snabbt, billigt och miljövänligt för att minska bostadsbristen i landet. Ett sätt att studera två av tre hållbarhetsaspekter vid val av framtida bostadsbyggande är att utföra en livscykelanalys (LCA) och livscykelkostnadsanalys (LCC) kring de tilltänkta husen. LCA:er indikerar vilken miljöpåverkan en produkt förorsakar under dess livslängd. LCC:er avser att studera vilka kostnader produkter ger upphov till under en given analysperiod. Det svenska kommunala bostadsbolaget Stångåstaden AB står inför utmaningen kring bostadsbrist och vill bygga hållbara bostäder. Bostadsbolaget har önskat en jämförande LCA och LCC av två verkliga flerbostadshus som de genom ramavtal kan upphandla, detta är utgångspunkten för denna studie. Den ena byggnaden har stomme av betong, den andra har stomme av trä. Husen är tänkta att placeras i utkanten av Linköping, Sverige. Studien har valt att analysera miljöpåverkan från husens olika livscykelfaser samt kostnader över analysperioden 50 år. Utöver detta studeras även vilka energieffektiviseringsåtgärder (EEÅ) till byggnaderna som är optimala att genomföra för att öka den termiska prestandan hos huskonstruktionerna. Från litteraturen finns det relativt få studier som kombinerar både LCA och LCC för vanligt förekommande hustyper i städer. I dess standardfall påvisade resultatet från LCA:n att huset med betongkonstruktion hade något lägre påverkan i sex av sju studerade miljöpåverkanskategorier, jämfört med flerbostadshuset i trä. Resultatet skilde sig lite åt då annan typ av indata användes. Vad gäller kostnader under husens livslängd var huset i trä ungefär 20 % dyrare jämfört med huset med betongkonstruktion. Trots annan typ av indata var träkonstruktionen dyrare än betongkonstruktionen. Med en kalkylränta på 7,5 % var det inte lönsamt att genomföra EEÅ för husen, med halverad kalkylränta blev det dock lönsamt att tilläggsisolera krypgrunden i huset med trästomme. Fler studier behöver utföras för att generalla slutsatser ska kunna dras kring vilket konstruktionsmaterial som är mest hållbart. Denna studie baseras på två specifika fall. Samma resultat kan eventuellt inte förväntas för andra byggnader med stomme i betong och trä.The residential sector accounts for more than a third of the energy use in Sweden. To reduce the energy use of buildings is a necessity in order to meet future regulationof maximum allowable energy, but also important to reduce the impact on global warming. Another complexity arising in Sweden is the shortage of accommodation. Municipal housing corporations face the challenge of constructing residences fast, cheap and with concern of environmental effects in order to reduce the shortage of accommodation. One way of assessing two of the three aspects of sustainability when looking at future construction of residential buildings is to carry out a Life Cycle Assessment (LCA) and a Life Cycle Cost Assessment (LCCA). An LCA can indicate what kind of environmental impact a product causes over its lifetime and the LCC allows for assessing what types of costs are associated with the product. For the municipal housing corporation Stångåstaden AB the shortage of accommodation is a reality and their mindset is sustainable construction of residences. This study was conducted upon request from Stångåstaden who wanted a comparative LCA and LCCA between two prefabricated multi-residential buildings that are available to them through a framework agreement. The first building has a concrete foundation and the second one is made of wood. The houses are planned to be placed at the outskirts of Linköping, Sweden. The focus of this study has been to comparatively assess the environmental impact from the different life cycle phases and the economic costs of the two buildings during a time period of 50 years. Moreover, the thesis also analyze the optimal retrofit strategy for the buildings in order to find the optimal (lowest) life cycle cost. Furthermore, the current literature has conveyed relatively few studies that combine both LCA and LCC methodology for house types that are common in most towns. The result from the LCA indicated that the house with concrete construction had a little less impact in six of the seven studied environmental impact categories compared to the house made of wood. The result differed slightly when the input data were changed. Regarding the LCCA the house made of wood was roughly 20 % more expensive than its concrete counterpart. Changing the input data revealed no difference in the result. With an interest rate of 7,5 % no retrofits were profitable for either building, however reducing the interest rate to half its original value made it cost optimal to increase the floor insulation for the house made of wood. More studies should be conducted to be able to draw general conclusions regarding which construction material that is the most sustainable. This thesis is based on two specific and real cases. The same result could possibly not be expected from other studies comparing buildings with concrete and wood construction.
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Jalaei, Farzad. "Integrate Building Information Modeling (BIM) and Sustainable Design at the Conceptual Stage of Building Projects." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32536.
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Lately the construction industry has become more interested in designing and constructing environmentally friendly buildings (e.g. sustainable buildings) that can provide both high performance and monetary savings. Analyzing various parameters during sustainable design such as Life Cycle Assessment (LCA) and energy consumption, lighting simulation, green building rating system criteria and associated cost of building components at the conceptual design stage is very useful for designers needing to make decisions related to the selection of optimum design alternatives. Building Information Modeling (BIM) offers designers the ability to assess different design options and to select vital energy strategies and systems at the conceptual stage of proposed buildings.
This thesis describes a methodology to implement sustainable design for proposed buildings at their conceptual stage. The proposed methodology is to be implemented through the design and development of a model that simplifies the process of designing sustainable buildings, evaluating their Environmental Impacts (EI), assessing their operational and embodied energy and listing their potential accumulated certification points in an integrated environment. Therefore, a Decision Support System (DSS) is developed by using Multiple Criteria Decision Making (MCDM) techniques to help design team decides and selects the best type of sustainable building components and design families for proposed projects based on three main criteria (i.e. Environmental, Economical factor «cost efficiency » and Social wellbeing) in an attempt to identify the influence of design variations on the sustainable performance of the whole building.
The DSS outcomes are incorporated in an integrated model capable of guiding users when performing sustainable design for building projects. The proposed methodology contains five modules: 1) Database Management System (DBMS), 2) Energy and lighting analysis, 3) Life Cycle Assessment (LCA), 4) LEED and 5) Life Cycle Cost (LCC). To improve the workability of the proposed model, a use case of abovementioned modules are going to be created as plug-ins in BIM tool.
The successful implementation of such a methodology represents a significant advancement in the ability to attain sustainable design of a building during the early stages, to evaluate its EI, and to list its potentially earned certification points and associated soft costs.
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Eriksson, Ylva, Hult Mathilda, and Sara Karlsmo. "Livscykelanalys och livscykelkostnad för byggnad isolerad med hampfiber jämfört med alternativ isolering." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-106868.
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Det finns en oro kring konsekvenserna av ökade växthusgasutsläpp. Därför har bland annat EU:s medlemsländer tecknat avtal om att minska utsläppen. I Sverige har det lett till krav att från och med 2022 redovisa byggmaterials miljöpåverkan genom klimatdeklarationer. Byggsektorn har potential att minska klimatpåverkan. Byggnadsmaterial ger olika utsläpp av växthusgaser och valet av material är viktigt. Isoleringsmaterial med naturlig härkomst anses orsaka mindre utsläpp än konventionell isolering. Hampa är ett exempel på ett naturligt material som kan användas i småhusbebyggelse. Hampan kan bli en kolsänka då biomaterial binder kol. Tyvärr finns det idag mycket begränsad forskning på just hampfiberisolering i svenskt klimat. Syftet med studien är att bidra med ökad kunskap inför valet av isoleringsmaterial i ett småhus, av modellen Eneryda av Rörvikshus, placerat i Växjö. I arbetet jämförs klimatpåverkan och kostnader för isoleringsmaterialen hamp-, cellulosa- och glasullsisolering genom en livscykelanalys (LCA) och en livscykelkostnad (LCC) i en vald husmodell. I studien undersöks skedena A-D, d.v.s. från vagga till grav. Resultatet visar att byggnaden isolerad med hampfiber orsakar det lägsta nettoutsläppet på 124 följt av cellulosa 132 och glasull 139 CO₂e/m². Kostnaden för byggnaden med isolering av hampfiber är 5467, cellulosa 4830 och glasull 4861 SEK/m²BOA. Genom att välja hampfiberisolering istället för glasull kan utsläppen för husmodellen Eneryda minskas med 12 % samtidigt som kostnaden ökar med 20 %. Att välja cellulosaisolering i stället för glasullsisolering ger en minskning av nettoutsläppen med 5 % och kostnaderna förblir detsamma. Studiens känslighetsanalyser visar effekten av indata. Om råvaran till cellulosa byts ut från oanvänt papper till återvunnen råvara orsakar det att nettoutsläppen för byggnaden Eneryda minskar med 13 %. Det innebär att småhuset Eneryda isolerad med cellulosa från återvunnen produkt orsakar 15 % lägre utsläpp än glasullshuset - utan att påverka priset. Största påverkan på nettoutsläppen hade Enerydas värmesystem. Att använda bergvärme istället för Veab:s fjärrvärme ökade nettoutsläppen med 56 – 63 %. Slutligen ledde resultatet av studien till en diskussion om avsaknaden av en entydig definition och metod för användandet av biogent kol i klimatdeklarationer. Att exkludera biogent kol leder till att hampfiberisoleringen bidrar med högst utsläpp tätt följt av cellulosan och sist glasullsisoleringen som släpper ut minst. Studiens resultat påvisar vikten av vaksamhet och att Boverket borde blir tydligare kring det biogena kolet i klimatberäkningar. Enheten bör utvecklas mer av institut för standarder. Av resultaten framgår också vikten av att ta tidsaspekten av biomaterialets förnyelsetid i beaktande vid beräkningarna för att material som hampfiber binder kol snabbare än exempelvis trä.The concern of climate change has influenced the building sector in Sweden to become more climate neutral. The choice of building materials affect the emissions of carbon dioxide equivalents [CO₂e]. The purpose of the study is to provide more basis for the choice of insulation material looking into the climate- and cost implication of hemp fibre, cellulose and stone wool insulation. The study includes an accounting-LCA from cradle to grave (A – D) and an LCC. The study looks at the climate shell of a one-story single-family house, model Eneryda from Rörvikshus, in Växjö over the lifetime 50 years. The result shows that Eneryda net emissions for hemp fiber insulation is 124 CO₂e/m²BOA and the cost is 5467 SEK/m2 BOA. The result of emissions for the hempfiber-model is 12% less and the cost is 20% higher than the glass wool-model. Cellulose insulation results in net emissions of 132 CO₂e/m² and a cost of 4830 SEK/m2 BOA. Cellulose results in 5% less emissions and nearly the same cost as the glass wool building.
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Celik, Ilke. "Eco-design of Emerging Photovoltaic (PV) Cells." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1533123980079904.
Full textBook chapters on the topic "LCA, life cycle assessment, LCC, life cycle cost"
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Cirrincione, Laura, and Giorgia Peri. "Covering the Gap for an Effective Energy and Environmental Design of Green Roofs: Contributions from Experimental and Modelling Researches." In Future City, 149–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71819-0_8.
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AbstractGreen roofs are components of the building envelope that have become increasingly popular in urban contexts because other than providing numerous environmental benefits they are also capable of reducing building energy consumption, especially in summer. However, despite all these advantages, green roofs are still affected by some limitations. Specifically, there are some gaps affecting the energy modelling consisting in the absence of a proper database, information (growth stage, leaf area index, and coverage ratio) relative to the different green roof plant species, which technicians could use in case of lack of actual field data to perform energy analysis of buildings equipped with green roofs. These gaps concern also environmental and economic assessments of such technology. In fact, the currently available green roof LCA and LCC studies seem to underestimate the role of the substrate on the overall environmental impact and the role of the disposal phase on the life cycle cost of the green roof. In this chapter, all these aspects are addressed, and contributions to their solution, which arose from both experimental and modelling research, carried out by the authors are presented.
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Linneberg, P., A. Solgaard, K. Eriksen, and J. Jensen. "Challenges within Life Cycle Cost (LCC) studies and Life Cycle Assessment (LCA)." In Bridge Maintenance, Safety, Management and Life Extension, 1048–55. CRC Press, 2014. http://dx.doi.org/10.1201/b17063-155.
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Muga, Helen E., and Ken D. Thomas. "Diffusion and Adoption of Innovations for Sustainability." In Technological, Managerial and Organizational Core Competencies, 73–88. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-61350-165-8.ch005.
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The primary focus of this chapter is on the theory and concepts of sustainability and why they are important to innovation and vice-versa. Key reductionist approaches to assessing sustainability such life cycle assessment (LCA), life cycle cost analysis (LCCA), and sustainability indicators are discussed in detail and applied to an engineering infrastructure scenario. The integrated sustainability methods of life cycle assessment and life cycle cost analysis enable a business to assess alternative products or processes at the planning and design stages. They may also be used during the production stages to assess whether a business needs to use a different raw material to make their products. The role of management, social network analysis, and mental models of individuals in the diffusion and adoption of innovations are also explored.
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P. Fuentes, Olga, Mabel J. Noguera, Paula A. Peñaranda, Sergio L. Flores, Juan C. Cruz, and Johann F. Osma. "Micromixers for Wastewater Treatment and Their Life Cycle Assessment (LCA)." In Advances in Microfluidics and Nanofluids. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96822.
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The use of micromixers and catalytically active nanocomposites can be an attractive alternative for the treatment of wastewaters from the textile industry, due to their high activity, low consumption of such nanocomposites, short reaction times and the possibility to work under continuous operation. In this study, 6 different designs of micromixers were modeled and evaluated for the treatment of wastewaters. Velocity profiles, pressure drops, and flows were analyzed and compared for the different devices under the same mixing conditions. In addition, Life cycle assessment (LCA) methodology was applied to determine their performance in terms of environmental impact. Considering the high environmental impact of water sources contaminated by dyes from the textile industry, it becomes critically important to determine when the proposed micromixers are a suitable alternative for their remediation. The LCA and operational efficiency studies results shown here provide a route for the design of novel wastewater treatment systems by coupling low-cost and high-performance micromixers.
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Mattinzioli, T., F. Moreno, M. Rubio, and G. Martínez. "LCA and cost comparative analysis of half-warm mix asphalts with varying degrees of RAP." In Pavement, Roadway, and Bridge Life Cycle Assessment 2020, 354–64. CRC Press, 2020. http://dx.doi.org/10.1201/9781003092278-37.
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"Dicussions and Conclusion." In Decision Support for Construction Cost Control in Developing Countries, 341–54. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9873-4.ch011.
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The rationale for this publication emanated from the challenges facing the efficient delivery of construction projects in developing countries. Although, some aspects of the book focus on key applications in Cameroon, a holistic approach was adopted where an overview of challenges related to construction for developing countries was considered. To re-focus issues addressed in this book, this last Chapter provides a summary of what has been covered in each Chapter. Also, major achievements and challenges will be discussed. Nevertheless a construction matter can not be seriously handled today without taking into account environmental issues. For this reason, we will say just a few words about environment. Indeed, wherever infrastructures in general and buildings in particular through production and emission of toxic matters and gas have harmful consequences on the environment. They must be assessed and monitored to reduce the risk of pollution. Among many environmental assessment methods, life cycle assessment (LCA) seems to be the most suitable. Wherever, it involves a lot of data and must be handling with a lot of caution. The life cycle assessment tools used in developed countries is not suitable in developing countries context. It should be benefit for them to develop a simple and suitable methodology easy to manage, in order to propose an environmental impacts measurement of construction projects' and buildings. The High Environmental Quality, which a priori ensures minimized environmental impact and promotes the principles of sustainable development, is the solution that seems best suited for the design of many social infrastructures projected in developing countries. This is going to be for them the future challenge for the next decades.
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Kasemsap, Kijpokin. "Mastering Fashion Supply Chain Management and New Product Development in the Digital Age." In Advances in Business Information Systems and Analytics, 65–91. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1865-5.ch003.
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This chapter indicates the perspectives on retailing and Supply Chain Management (SCM); trends and issues with fast fashion industry; the overview of Fashion Supply Chain Management (FSCM); fashion retail supply chains and fashion sales forecasting; fashion retail supply chains and sustainability; the overview of New Product Development (NPD); NPD process, social media, and digital environments; NPD, ecological marketing, and Life Cycle Assessment (LCA); NPD performance and supplier-buyer relationship; and the importance of NPD collaboration. In addition to the traditional functions of logistics management in fashion companies, which include inventory management and transportation management, FSCM places a strong emphasis on both collaboration and partnership among various channel members along with the fashion retail supply chains. With the advance of the Internet and social media, NPD strategy provides a beneficial framework for creating the new products and improving the product performance, product cost, and quality of the existing products.
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Marcinkowski, Bartosz, Sebastian Narojczyk, Dariusz Nowak, and Vasyl Zalizko. "Modern methods used in production-operations management." In Production–operation management. The chosen aspects, 137–81. Wydawnictwo Uniwersytetu Ekonomicznego w Poznaniu, 2021. http://dx.doi.org/10.18559/978-83-8211-059-3/05.
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Climate change, resource depletion, technical progress, growing consumer awareness and changing requirements causes companies to look for new production methods. They may concern various areas of the company’s activity, starting from product design, procurement organization, optimization of production processes, control of manufactured products and services, through improvement of work organization and reduction of production costs, and ending with the implementation of modern solutions based on digital technologies. The purpose of implementing new production methods is to improve labour mobility, optimization of the use of raw materials and resources, costs reduction, increase efficiency, productivity, etc. In the literature, there are many different types of methods that can be used by modern enterprises. It is practically impossible to present all methods in this study. The authors focused on the presentation of selected methods, which are characterized on the one hand by innovation and, on the other hand, by the possibility of implementation. Particular attention should be paid to methods focused on environmental aspects. This group presents basic information on environment-conscious manufacturing (ECM), life-cycle assessment (LCA) and waste management and recycling. These methods allow to implement the concept of sustainable development and are directly related to the 17 goals set out in the 2030 Agenda for Sustainable Development and adopted by UN member states. In the group of methods related to next generation production management, the focus was on Matrix shop floor control and cooperative manufacturing. Of particular importance is cooperative management, because cooperation in practice is considered as a specific resource and one of the most important factors of a competitive position. The next group of methods concerned production planning and control. Drum Buffer Rope (DBR) and theory of constraints (TOC) were discussed as part of it. From the company’s point of view, methods related to manufacturing processes are very important, including group technology (GT) and cellular manufacturing (CM). Another group focused on commercial aspects, including demand chain management (DCM) and competitive intelligence (CI). The chapter also presents methods related to auxiliary software support, advanced organizational manufacturing and focused on product design. In the first case, Electronic Data Interchange (EDI) was discussed, in the second, virtual enterprises (VE) and World Class Manufacturing (WCM) were presented, and in the third, the assumptions concerning the Quality Function Deployment (QFD) and House of Quality (HOQ) method were shown. Additionally, Statistical Process Control (SPC) and Computer-Aided Process Planning (CAPP) are discussed within the framework of methods focused on cost and quality manufacturing.
Conference papers on the topic "LCA, life cycle assessment, LCC, life cycle cost"
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Lu, B., and P. Gu. "Systematic Life Cycle Design for Sustainable Product Development." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/dfm-48141.
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Sustainable product development (SPD) requires that product design achieves minimum or zero environmental impact, in addition to satisfying the traditional design criteria such as product functionality, quality, features, costs and time to market. Therefore, the environmental evaluations must be incorporated into design stage. In this research, a product design process model was proposed which includes three design requirements, two design tasks, and three comprehensive assessment streams. The functional requirement is derived from the customer needs to reflect the product’s functional purpose; the environmental requirement reflects the society’s needs of protecting natural resources and environment; and the economic requirement is to ensure the company’s basic business goals. Accordingly, SPD aims to simultaneously carry out two tasks of designing products’ physical structures and lifecycle structures. In the assessment phase of product design, three assessment streams, lifecycle quality (LCQ) analysis, lifecycle assessment (LCA), and lifecycle cost (LCC) are conducted with respect to the functional, environmental, and economic evaluations. A Process-Based Analysis concept is proposed for analysis of all three dimensions of LCQ, LCA, and LCC evaluations. Simplified LCA was used for environmental evaluations. The detailed assessment techniques are also developed for effective design evaluations. A case study will be provided to illustrate the methods and models.
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Kalluri, Sumanth, Pasi Lautala, and Robert Handler. "Toward Integrated Life Cycle Assessment and Life Cycle Cost Analysis for Road and Multimodal Transportation Alternatives: A Case Study of the Highland Copper Project." In 2016 Joint Rail Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/jrc2016-5841.
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Freight transportation of goods and commodities is a necessity and is often a significant portion of the overall investment in industrial development, especially in the natural resource industry. The economic costs of developing infrastructure have long been factored into the project costs, but environmental or social impacts have received less attention. In addition, alternative transportation modes are rarely compared from both economic and environmental perspectives. This paper performs a Life Cycle Assessment (LCA) for truck-only, multimodal and rail transportation options to transport ore and concentrate. In this paper, LCA is performed in SimaPro for construction/manufacturing, operations, maintenance, and end of life phases to obtain the overall Global Warming Potential (GWP) in terms of kilogram equivalents of CO2 (kg CO2eq). After emissions from alternative options have been defined, the cost of each option can be investigated through Life Cycle Cost Analysis (LCCA) This paper also discusses the past work on LCCA and its application to transportation projects. The final part provides a methodology to convert the emission results from LCA for integration with the costs from LCCA.
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Zhang, Yanping (Paul), H. P. (Ben) Wang, and Chun (Chuck) Zhang. "Life Cycle Design With Green QFD-II." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/dfm-5719.
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Abstract Green Quality Function Deployment-II (GQFD-II), a new methodology for product development or improvement, is introduced in this paper. By integrating Life Cycle Costing (LCC) into QFD matrices and deploying quality, environmental and cost requirements throughout the entire product development process, GQFD-II elaborates the original GQFD, in which Life Cycle Assessment (LCA) and QFD are combined to evaluate different product concepts. GQFD-II includes three major phases. Phase I - Technical Requirement Identification. Quality house, green house and cost house are established in this phase, where customer, environmental and cost requirements are established and documented. Phase II - Product Concept Generation. A series of product concepts are generated to satisfy the requirements established in Phase I. These concepts can be evaluated with respect to quality, environment and cost. The best product concept is then selected. Phase III - Product/Process Design. In this phase, the requirements from previous phases are deployed into all product/ process design stages. In this paper, an illustrative example (light fixtures) is used to demonstrate the concept of GQFD-II.
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Matos, José, Anders Solgaard, Poul Linneberg, Alfred Strauss, Irina Stipanovič, Joan Casas, Snežana Mašović, Colin Caprani, Drahomír Novák, and Mitsuyoshi Akiyama. "Life Cycle Cost Management of Concrete Structures." In IABSE Conference, Copenhagen 2018: Engineering the Past, to Meet the Needs of the Future. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/copenhagen.2018.130.
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Tools, guidelines and standards for assessment of Life Cycle Cost (LCC) of built environment e.g. buildings, infrastructure assets etc. have gained impact over the past years. Owner and operator application of tools, guidelines and standards enhances optimization of operation and maintenance with due respect to their budgets. In order to aid owners, operators and their designers, a task group under fib has been established to prepare a state-of-the-art report regarding LCC analyses of concrete assets. The state-of-the-art report contains a description of existing LCC standards and guidelines, their applicability, the definition of different cost elements, and the treatment of uncertain information in a reliability or risk based framework, etc. providing the reader with background information and methodology for preparation of such analysis. Moreover, the report contains case studies, presenting the applicability of the LCC analysis methodology.
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Giunta, Marinella, Sara Bressi, and Massimo Losa. "Sustainability in Railway Construction: LCA–LCC Based Assessment of Alternative Solutions for Track-Bed." In 2020 Joint Rail Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/jrc2020-8008.
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Abstract The economic and environmental sustainability of the Bitumen Stabilized Ballast (BSB) as construction and maintenance practice in railway track-bed is evaluated in comparison to the traditional ballast (TB). This aim is achieved integrating the results of an attributional Life Cycle Assessment (LCA), following a cradle-to-grave approach, and the Life Cycle Cost (LCC) analyses. The higher durability of BSB leads to arise environmental benefits in almost all the impact categories of LCA. Nevertheless, Bitumen Emulsion (BE) originates high level of impact on certain categories and they cannot be compensated by the reduction of the minor and major maintenance activities required by the BSB solution over the life cycle. The results of the LCA have been implemented in the LCC model for accounting the external costs due to the environmental impacts. From this analysis it emerges that the BSB technology, used since the construction stage and during the routine tamping, can provide economical savings.
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Wang, Hao, and Dagen Weng. "Life-Cycle Cost Assessment of Seismically Base-Isolated Large Tanks in LNG Plants." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97572.
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A new methodology is being introduced to address the life-cycle cost (LCC) of base-isolated large liquefied natural gas (LNG) tanks. The relationship between LCC and seismic fortification intensity is established to evaluate how much reduction of earthquake force can minimize the LCC. Each composition of LCC is analyzed including the initial cost, the isolators cost and the excepted damage cost. The isolators cost consists of the cost of lead rubber bearings and dampers. The cost of lead rubber bearings is proposed proportional to its volume and the cost of dampers is not only related to its maximum displacement but also to its tonnage. The concept of seismic intensity is being used to estimate the expected damage cost, greatly simplifying the calculation. Moreover, a tank in a LNG receiving terminal in China is employed as an example to assess its LCC in isolated and non-isolated situation respectively. The results show that the proposed method is efficient and the expected damage cost is enormously reduced because of the application of isolators, which leads to the reduction of the LCC of the tank.
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Heath, Garvin, Craig Turchi, Terese Decker, John Burkhardt, and Chuck Kutscher. "Life Cycle Assessment of Thermal Energy Storage: Two-Tank Indirect and Thermocline." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90402.
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In the United States, concentrating solar power (CSP) is one of the most promising renewable energy (RE) technologies for reduction of electric sector greenhouse gas (GHG) emissions and for rapid capacity expansion. It is also one of the most price-competitive RE technologies, thanks in large measure to decades of field experience and consistent improvements in design. One of the key design features that makes CSP more attractive than many other RE technologies, like solar photovoltaics and wind, is the potential for including relatively low-cost and efficient thermal energy storage (TES), which can smooth the daily fluctuation of electricity production and extend its duration into the evening peak hours or longer. Because operational environmental burdens are typically small for RE technologies, life cycle assessment (LCA) is recognized as the most appropriate analytical approach for determining their environmental impacts of these technologies, including CSP. An LCA accounts for impacts from all stages in the development, operation, and decommissioning of a CSP plant, including such upstream stages as the extraction of raw materials used in system components, manufacturing of those components, and construction of the plant. The National Renewable Energy Laboratory (NREL) is undertaking an LCA of modern CSP plants, starting with those of parabolic trough design. Our LCA follows the guidelines described in the international standard series ISO 14040-44 [1]. To support this effort, we are comparing the life-cycle environmental impacts of two TES designs: two-tank, indirect molten salt and indirect thermocline. To put the environmental burden of the TES system in perspective, one recent LCA that considered a two-tank, indirect molten salt TES system on a parabolic trough CSP plant found that the TES component can account for approximately 40% of the plant’s non-operational GHG emissions [2]. As emissions associated with plant construction, operation and decommissioning are generally small for RE technologies, this analysis focuses on estimating the emissions embodied in the production of the materials used in the TES system. A CSP plant that utilizes an indirect, molten salt, TES system transfers heat from the solar field’s heat transfer fluid (HTF) to the binary molten salts of the TES system via several heat exchangers. The “cold tank” receives the heat from the solar field HTF and conveys it to the “hot tank” via another series of heat exchangers. The hot tank stores the thermal energy for power generation later in the day. A thermocline TES system is a potentially attractive alternative because it replaces the hot and cold tanks with a thermal gradient within a single tank that significantly reduces the quantity of materials required for the same amount of thermal storage. An additional advantage is that the thermocline design can replace much of the expensive molten salt with a low-cost quartzite rock or sand filler material. This LCA is based on a detailed cost specification for a 50 MWe CSP plant with six hours of molten salt thermal storage, which utilizes an indirect, two-tank configuration [3]. This cost specification, and subsequent conversations with the author, revealed enough information to estimate weights of materials (reinforcing steel, concrete, etc.) used in all components of the specified two-tank TES system. To estimate embodied GHG emissions per kilogram of each material, two life cycle inventory (LCI) databases were consulted: EcoInvent v2.0 [4], which requires materials mass data as input, and the US Economic Input-Output LCA database [5], which requires cost data as input. IPCC default global warming potentials (GWPs) give the greenhouse potential of each gas relative to that of carbon dioxide [6]. Where certain materials specified in Kelly [3] were not available in the LCI databases, the closest available proxy for those materials was selected based on such factors as peak process temperature, and similar input materials and process technology. The thermocline system was modeled using the two-tank system design as the foundation, from which materials were subtracted or substituted based on the differences and similarities of design [7]. Table 1 summarizes the results of our evaluation. Embodied emissions of GHGs from the materials used in the 6-hour, 50 MWe two-tank system are estimated to be 17,100 MTCO2e. Analogous emissions for the thermocline system are less than half of those for the two-tank: 7890 MTCO2e. The reduction of salt inventory associated with a thermocline design thus reduces both storage cost and life cycle greenhouse gas emissions. While construction-, operation- and decommissioning-related emissions are not included in this assessment, we do not expect any differences between the two system designs to significantly affect the relative results reported here. Sensitivity analysis on choices of proxy materials for the nitrate salts and calcium silicate insulation also do not significantly affect the relative results.
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Yatomi, Masataka, Akio Fuji, Noriko Saito, and Toshiaki Yoshida. "An Approach for Cost Effective Assessment in Risk-Based Maintenance as a Life-Cycle Maintenance (LCM) Model." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-3003.
Full textAbstract:
For aged power plants in Japan, the life extension with retaining the safety and cost-effective beyond the original design lifetime is proposed. Therefore it is important to minimise the risk and maintenance cost to keep operating the plants. Life-Cycle Maintenance (LCM) is proposed for optimising maintenance plan with reliability in the life of the plants. Risk Based Maintenance (RBM) is included in the LCM to assess the risk of components in the plants. LCC and the investment assessment may be also conducted to decide the most cost effective maintenance strategy, if several maintenance strategies are proposed in RBM. In this paper, concept and an application of the LCM are described to optimise maintenance plan in the lifetime of a plant. It was found that the LCM is quite useful method to plan the most cost effective maintenance strategies in the lifetime of the plant.
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Baliwangi, Lahar, Kenji Ishida, Hidetoshi Arima, and Ketut Buda Artana. "Optimizing Ship Machinery Maintenance Scheduling Through Risk Analysis and Life Cycle Cost Analysis." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92201.
Full textAbstract:
Ship maintenance scheduling management integrated with risk evaluation and Life Cycle Cost (LCC) assessment approach is developed in this research. It improves upon existing practices in arranging an optimal maintenance schedule by modeling operational and economical risks. This paper researches maintenance scheduling algorithm with explicitly consider risks associated with some operation problems such as operating schedule, routes, ship position, resources availability, and achievement of reliability-availability-maintainability (RAM) of system. Modeling of components RAM with their failures consequences results risk evaluation. Time value of maintenance cost, replacement cost, earning rate, and penalty cost are also simulated. When the system reaches the lowest level of lower limit reliability, one or more components should be maintained or replaced. Since maintenance task may interrupt the operation, to minimize time-to-maintain all possible events of maintaining other components at the same time will be evaluated together with resources availability. By researching those possibilities, constraining the risk, and based on LCC calculation result, an optimal maintenance scheduling can be then well established.
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Favi, Claudio, Roberto Raffaeli, Michele Germani, Fabio Gregori, Steve Manieri, and Alessio Vita. "A Life Cycle Model to Assess Costs and Environmental Impacts of Different Maritime Vessel Typologies." In ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/detc2017-68052.
Full textAbstract:
Maritime vessels have long service life and great costs of building, manning, operating, maintaining and repairing. Making a consistent lifecycle model among the different vessel typologies, repeatable with the same level of detail and comparable for the implementation of decision-making strategies, remains an open question. This paper aims to define a suitable lifecycle model in the context of maritime vessels to cope with the current limitations of ad-hoc and fragmented methods. The model considers the main aspects involved in the vessel lifecycle such as building materials, manufacturing and assembly, maintenance/service, operational activities, use, etc. The model provides a common structure for the lifecycle assessment (LCA) and lifecycle cost analysis (LCCA) including the way to retrieve and to collect the data necessary for the analysis starting from the available project documentation and the design models. The method is flexible and it is able to cover a large variety of maritime vessel typologies. As example, a luxury yacht has been analysed using the developed method, demonstrating the applicability of the proposed model in one of the most critical vessel typology.