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Dissertations / Theses on the topic 'GWPR'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Jarahnejad, Mariam. "New Low GWP Synthetic Refrigerants." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-96118.

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Lynch, Peredur Ionor. "Testun beirniadol o ganu Einion Wan a Llygad GWR." Thesis, Bangor University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253462.

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3

TIECHER, RICARDO FERNANDO PAES. "MODELING OF NEW COMMERCIAL REFRIGERATION SYSTEMS OPERATING WITH LOW-GWP FLUIDS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2014. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=35538@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Configurações novas e tradicionais de sistemas de refrigeração comerciais foram comparadas considerando sua operação com fluidos refrigerantes alternativos. Primeiramente, desenvolveram-se modelos termodinâmicos para o ciclo transcrítico de dois estágios com refrigerante CO2 (CO2 booster) e para o sistema indireto com CO2 bifásico operando como fluido secundário (pumped CO2). Tais tecnologias foram, em seguida, comparadas com o ciclo de expansão direta (DX) por meio do COP e d

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4

Barr, John B. "Analysis of Asthmatic Hospital Admissions in Mississippi as Related to Demographic and Environmental Variables." Kent State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1322508275.

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5

Zongker, James D. "Life cycle assessment of Solar Updraft Tower Power Plant: EROEI and GWP as a design tool." Thesis, Wichita State University, 2013. http://hdl.handle.net/10057/10652.

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The Solar Updraft Tower Power Plant (SUTPP) is a simple proven concept capable of producing power from sunlight with relatively little complexity and few moving parts. Unfortunately, it requires a large investment to build huge greenhouse-like collector to feed heated air into a very tall chimney, where it rises due to natural convection and spins turbo-generators that provide electric power. Substantial research has gone into understanding its physics, modeling its performance, and optimizing its fundamental design aspects. Economic analyses indicate it is feasible, proposals have been made,

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6

HE, Xin. "Modeling church services supply and performance, using geographically weighted regression." Thesis, University of Gävle, Ämnesavdelningen för samhällsbyggnad, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-5801.

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<p>The objective of this study is to develop a multiple linear regression model that measures the relationship between the church services supply and the attendance to the services in the Uppsala diocese, Church of Sweden. By reviewing previous models and examining the nature of data available, two research questions were introduced, namely, the problem of omitted variables and the problem of spatial autocorrelation. For the first question, two methods were compared, namely, the Y-lag method and the first-differenced equation. Statistical tests then showed that the latter was more preferable f

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7

Pettersson, Felicia. "Uppvärmningssystem vid nyproduktion av flerbostadshus : En ekonomisk och miljömässig jämförelse mellan bergvärme, fjärrvärme eller en kombination av dem." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-78873.

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En byggnads värme- och varmvattenbehov utgör en stor del av dess totala energibehov. Vilket värmesystem som väljs blir därmed viktigt för att bli så ekonomiskt gynnsamt och miljömässigt bra som möjligt. Två vanliga värmekällor för flerbostadshus är bergvärme och fjärrvärme eftersom bergvärmen har en låg driftkostnad medans fjärrvärmen finns tillgänglig i de flesta städer samtidigt som båda systemen har låg miljöpåverkan. Syftet med studien är att koldioxidutsläpp på värmesystem ska vara så låga som möjligt till ett lågt pris. Målet med studien är därför

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8

Anwar, Zahid. "Flow boiling heat transfer, pressure drop and dryout characteristics of low GWP refrigerants in a vertical mini-channel." Doctoral thesis, KTH, Tillämpad termodynamik och kylteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156056.

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Two-phase heat transfer in mini/micro-channels is capable of meeting the high cooling demands of modern high heat flux applications. The phase change process ensures better temperature uniformity and control for local hot spots. Furthermore, these compact channels could be helpful in reducing the required charge and material inventories.Environmental concerns—mainly ozone depletion and global warming—have instigated a search for new alternatives in refrigeration industry. While new compounds are being developed to address stringent legislative demands, natural alternatives are also coming into

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9

Nygren, Julia. "Utfasning av miljöskadliga köldmedier i kylsystem : Utfasning av miljöskadliga köldmedier i kylsystemet på Stora Ensos pappersbruk i Kvarnsveden som innefattas av nya köldmedieförordningen SFS 2016:1128." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-39953.

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10

Vieira, Thiago Bernardi. "Distribuição da riqueza e coocorrência em peixes de riachos." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/5110.

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Submitted by Cláudia Bueno (claudiamoura18@gmail.com) on 2016-01-14T13:57:19Z No. of bitstreams: 2 Tese - Thiago Bernardi Vieira - 2015.pdf: 3669196 bytes, checksum: dcec0ac984d5ca70f224cb749d6933cf (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-01-15T09:45:52Z (GMT) No. of bitstreams: 2 Tese - Thiago Bernardi Vieira - 2015.pdf: 3669196 bytes, checksum: dcec0ac984d5ca70f224cb749d6933cf (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)<br>Made avai

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Fruits, Gregory C. "Crime and Obesity: A Case Study Using Akron, Summit County, Ohio." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1556193301454261.

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12

Lind, Lucas. "REVIT – ETT BRA HJÄLPMEDEL VID KLIMATDEKLARATION? : EN UNDERSÖKNING OM KLIMATDEKLARATION KAN UNDERLÄTTAS AV REVIT." Thesis, Uppsala universitet, Byggteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388805.

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According to SMHI the largest contributing factor to globalwarming is the increased greenhouse gas emissions in theatmosphere. In year 2018 Boverket submitted a proposal for climatedeclaration on new buildings. In the Boverkets climatedeclaration, a building's climate impact is calculated in the formof carbon dioxide equivalents on the material included in thefoundation, building envelope and the non-load-bearing interiorwalls. The unit in the climate declaration is kg Co2e / kg m2where m2 is BTA for the building.The purpose of the theoretical study was to describe what impactthe climate decla

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Johansson, Malin. "A study of potential climate impacts from maintenance and replacements in timber buildings : From a lifecycle perspective." Thesis, KTH, Byggnadsmaterial, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188593.

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The building sector contributes to a large part of the total emissions of greenhouse gases, which demands for increased sustainability in all phases of a buildings’ lifecycle. Choices of building materials and the respective required maintenance and replacements are becoming more important if further reductions of climate impacts should be obtained. Folkhem is a Swedish construction company who constructs multi-storey buildings made of wood. The company has shown interest in developing knowledge about how the selection of building materials effects the impacts on climate, the extent of necessa

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Nilsson, Madelene. "En jämförelse mellan trästomme och betongstomme med klimatanpassad betong i utsläpp av koldioxidekvivalenter : En studie av hur stomsystem kan jämföras med hjälp av klimatdeklarationer." Thesis, Mittuniversitetet, Institutionen för ekoteknik- och hållbart byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-42953.

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Sveriges regering avser att införa ett lagkrav som innebär att byggherrar inom näringslivet som uppför en byggnad där bygglov krävs från och med 1 januari år 2022 måste lämna in en klimatdeklaration. Klimatdeklarationen ska ange hur mycket utsläpp av koldioxidekvivalenter den nya byggnaden genererar under byggskedet. Detta är ett steg i riktning mot att minska de utsläpp av koldioxidekvivalenter som genereras av byggsektorn. Den mängd material som krävs för byggnadens klimatskärm, bärande konstruktioner samt alla innerväggar ska tas upp i klimatdeklarationen. I denna studie jämförs mängden uts

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15

Adnan, Simat, and Jann Ton. "Optimization in Design of End-Bearing Concrete and Steel Piles with Regard to Climate Impact : Climate Conscious Material Choices in Early Project Planning." Thesis, KTH, Jord- och bergmekanik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296532.

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Environmental sustainability is becoming more popular in the building industry. Sustainable thinking needs to be present during the whole construction process, from the idea phase to the final stages. The aim of this master thesis is to investigate how end-bearing concrete and steel pipes as well as composite concrete-filled steel tube piles can be designed with greater consideration to climate impact. The purpose of this study is primarily to encourage awareness during the material choice phase in early stages of project planning. A Matlab code was programmed to perform a parametric study and

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Camargo, Michelle [UNIFESP]. "Caracterização genética e das pressões seletivas atuantes na região do envelope e das variantes GWGR do subtipo B brasileiro do Vírus da Imunodeficiência Humana Tipo 1." Universidade Federal de São Paulo (UNIFESP), 2009. http://repositorio.unifesp.br/handle/11600/9674.

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Made available in DSpace on 2015-07-22T20:50:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-03-25. Added 1 bitstream(s) on 2015-08-11T03:25:27Z : No. of bitstreams: 1 Publico-00241.pdf: 1343802 bytes, checksum: c09cdd2f6fac68d70a68a3328dedd440 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Apesar do subtipo B ser o mais predominante na epidemia de aids no Brasil, existem evidências que esse subtipo não é homogêneo. O subtipo B apresenta no Brasil uma assinatura no tetrâmero da coroa V3 da gp120 que é a presença de um triptofano (W) ao invés de prolina

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17

Rached, Wissam. "Etude et conception des pompes à chaleurs air/eau utilisant des mélanges à grand glissement de température et à faible GWP." Paris, ENMP, 2003. http://www.theses.fr/2003ENMP1205.

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Un nouveau système de pompe à chaleur Cette recherche a conduit à une série de résultats sur l'utilisation de mélanges de fluides frigorigènes dans les pompes à chaleur. Après une analyse des méthodes existantes montrant quelques unes de leurs limitations, une méthode de mesure in-situ de la composition circulante du mélange a été élaborée et peut être utilisée pour tout type de mélanges. L'effet de la variation de la composition circulante sur les performances des pompes à chaleur et une régulation de la puissance basée sur la régulation de la composition ont été analysés en détail. Le chapit

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18

Rosencrantz, Eric, and Oskar Saether. "En funktion- och miljöpåverkansanlays av materialet isobetong." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-82738.

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Byggbranschen utvecklas konstant, strävan efter att utveckla nya och effektivare material ärstor. Några av de viktigaste egenskaperna som byggsektorn eftersöker är hög hållfasthet, lågvärmekonduktivitet och låg miljöpåverkan.Isobetong är ett nyligen framtaget material. Det är en typ av skumbetong med egenskaper ochfunktioner som skiljer sig från traditionell skumbetong ur hänseende på hållfasthet,värmekonduktivitet och miljöpåverkan.Syftet med denna undersökning är att identifiera Isobetongens karakteristiska egenskaper ochjämföra de med egenskaper av konkurrerande material. Resultatet föreslå

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19

Park, Miseon. "HOUSING CHOICE VOUCHER PROGRAM: PATTERNS AND FACTORS OF SPATIAL CONCENTRATION IN CLEVELAND." Cleveland State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=csu1291743552.

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20

Blondel, Quentin. "Etude et optimisation énergétique des mélanges zéotropes pour les cycles thermodynamiques de Rankine." Thesis, Université Grenoble Alpes, 2021. http://www.theses.fr/2021GRALI021.

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Les cycles de Rankine à fluides organiques (de l’anglais Organic Rankine Cycle, ORC) sont des machines thermodynamiques qui permettent de convertir de l’énergie thermique, notamment à basse température (inférieure à 120°C dans notre cas), en énergie électrique. Habituellement ce type de cycle thermodynamique utilise un fluide pur comme fluide de travail ; ici notre travail a également porté sur l’utilisation d’un mélange de plusieurs fluides. En effet, un type spécifique de mélange, les mélanges zéotropes, est pressenti pouvoir permettre un accroissement des performances des cycles ORC. Cepend

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Karmarkar, Bharati Mahesh. "Comparison of energy consumption with regard to type and percentage of glazing, location and orientation in classroom spaces." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/42858.

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Much of the art of daylighting lies in the judicious placement of windows in relation to the interior, in order to achieve the desired levels of illumination and view. Studies have shown that the glazing size, location and type all impact the internal energy loads. Schools are incorporating technology in classrooms to transform learning. The expanded presence of technology in the classroom has also affected how classrooms are designed. This study tries to determine a glazing ratio for classroom spaces of the future in regards to energy consumption as a combined function of climatic conditions

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22

Rodi, Erica. "Influence de la modification chimique de l’interface sur la dispersion des renforts lignocellulosiques dans les Green Wood Plastic Composites (GWPC) : apport de la modélisation sur l’optimisation des propriétés mécaniques." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1100/document.

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Cette étude se concentre sur les « Green Wood Plastic Composites » (GWPC) élaborés avec des matrices de type polyesters aliphatiques biodégradables tels que le poly(-caprolactone) PCL, le poly(acide lactique) PLA et le poly(3-hydroxybutyrate-co-3-hydroxyvalérate) PHBHV renforcées par des fibres de Miscanthus giganteus. Afin d’améliorer l‘adhésion entre les fibres végétales et les matrices thermoplastiques, une modification chimique des fibres a été mise au point. Il s’agit de greffer des chaînes de polyesters, de même nature que la matrice, à la surface des fibres végétales, en utilisant la r

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23

Ulin, Sofia, and Julia Wiebert. "Framtidens hållbara elbilskoncept : En jämförande LCA-studie mellan en elbil och en bränslecellsbil." Thesis, KTH, Industriell ekologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170593.

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Transportsektorn så som den ser ut i dagens samhälle är inte hållbar då den står för ungefär 30 % av Sveriges totala utsläpp av koldioxid. Detta beror framför allt på att fossila bränslen utgör det främsta drivmedlet inom transportsektorn, och alternativa lösningar måste därför undersökas. Två sådana alternativ är elbilar och bränslecellsbilar. För att ta reda på vilket av dessa elbilskoncept som har störst möjlighet att skapa en utsläppsfri transportsektor har livscykelanalyser genomförts för att jämföra de olika bilmodellerna ur ett livscykelperspektiv. De tva

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24

Righetti, Giulia. "Application of innovative refrigerants with low environmental impact for refrigeration and thermal control." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424486.

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After a brief introduction on the global warming effect and on the measures that have been adopted to limit it, this thesis is focused on low GWP refrigerants and, above all, on HFOs, which have been studied during two phase flow in several operating test conditions. To cover a great portion of the existing devices, four heat exchangers have been investigated: a tube in tube heat exchanger, a Brazed Plate Heat Exchanger (BPHE), a roll-bond type heat exchanger, and a Finned Heat Pipe Heat Exchanger (HPFHE). In Chapter 2 the four experimental test rigs used to collect experimental data are expl

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Tapia, Daniel Felipe Sempértegui. "Análise experimental do efeito da geometria da seção transversal e do desempenho de fluidos de reduzido GWP na ebulição convectiva em canais de dimensões reduzidas." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18147/tde-02022017-152135/.

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A presente tese trata da análise experimental do efeito da geometria da seção transversal do canal e do desempenho de refrigerantes de reduzido GWP (Global Warming Potential) durante a ebulição convectiva em canais de reduzidas dimensões. A tese inclui ainda um estudo extenso e crítico da literatura sobre métodos de previsão da perda de pressão e do coeficiente de transferência de calor, e sobre estudos experimentais em canais não-circulares e de refrigerantes com reduzido GWP na ebulição convectiva em canais de dimensões reduzidas. Resultados para o coeficiente de transferência de calor e per

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Wheeler, David C. "Diagnostic tools and remedial methods for collinearity in linear regression models with spatially varying coefficients." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1155413322.

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27

Hanna, Rani. "Étude d'une compression refroidie par injection d'huile dans un compresseur scroll : application au remplacement du R-410A dans les groupes refroidisseurs d'eau." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLEM035.

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Le problème du réchauffement climatique actuel conduit au renforcement des règlementations environnementales. Ainsi, le domaine du génie climatique est affecté par ces évolutions réglementaires, ce qui impose le passage à une nouvelle génération de réfrigérants à plus bas impact environnemental. Dans cette thèse, ce sujet est étudié dans le cas des groupes refroidisseurs d’eau utilisant le R-410A qui est visé par la réglementation. Mais, résoudre ce problème ne s’arrête pas au simple changement du réfrigérant par un autre à plus bas GWP ; il faut que la transition soit accompagnée par une amél

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Bateebe, Irene. "Investigation of Probable Pollution from Automobile Exhaust Gases in Kampala City, Uganda : To Assess the current automobile exhaust gas emission levels and characterize the emissions from different automobile types." Thesis, KTH, Energiteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92013.

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It is estimated that transport sources in developing countries contribute about 4% of the global fossil carbon dioxide versus 18% by industrialized countries. The cost of urban air pollution is estimated to be 2% of GDP in developed countries and more than 5% in developing countries. With an annual vehicle registration growth of over 30% in 2008 and a population growth rate of 6%, the number of automobiles in Kampala city of Uganda is expected to continue growing exponentially. Most of the vehicles used are imported into the country when quite old with worn out engines and low energy efficienc

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Haasch, Justin Miles. "Statistical Models used to Identify new Urban Development in Cuyahoga County, Ohio: A Methodological Comparison." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1290663731.

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Raptis, Christos, and My Hagberg. "Utvärdering av växtfasaders klimatpåverkan med hjälp av livscykelanalyser." Thesis, Uppsala universitet, Byggteknik och byggd miljö, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-447532.

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The building sector has attributed a significant focus on improving its sustainability performance, as it contributed to almost 38% of global carbon dioxide emissions in 2019, and is estimated to be the least environmentally friendly industry worldwide. Life cycle analysis (LCA) is considered a rewarding method for evaluating the environmental impact caused by buildings or individual building components, based on various environmental indicators such as carbon dioxide emissions. A life cycle analysis can be performed in different ways depending on the purpose of the analysis. Screening LCA is

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Silva, Jaqueline Diniz da. "Estudo teórico e experimental da transferência de calor durante a condensação e perda de pressão no interior de minicanais para os refrigerantes R1234ze(E) e R32 com reduzido GWP." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/18/18147/tde-10112017-133617/.

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Recentemente, observa-se o crescimento do número de trocadores de calor baseados em microcanais devido a necessidade de transferência de elevadas taxas de calor utilizando dispositivos compactos. Tubos de calor, trocadores de calor compactos para equipamentos eletrônicos e controle térmico de satélites, sistemas de condicionamento de ar para automóveis, escritórios e residências são exemplos de aplicações para condensação em canais de diâmetro reduzido. No entanto, na literatura encontra-se reduzido número de estudos experimentais tratando da condensação no interior de canais com diâmetros inf

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Torres-Dini, Diego Gabriel [UNESP]. "Detection of QTLs associated to DBH in a Eucalyptus grandis x Eucalyptus Globulus monoprogeny." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/148905.

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Torres-Dini, Diego Gabriel. "Detecção de qtl associado a dap em eucaliptus grandis x eucaliptus globulus monoprogênie /." Ilha Solteira, 2017. http://hdl.handle.net/11449/148905.

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Orientador: Alexandre Magno Sebbenn<br>Resumo: In Uruguay, reforestation with Eucalyptus sp. is of fundamental importance to produce paper, pulp and wood. The productivity of these continually grows due to application of breeding techniques, such as hybridization. This study aimed to investigate genetic parameters, productivity, stability, adaptability and to identify SNP markers associated with the diameter breast height (DBH) for to select Eucalypts grandis x Eucalyptus globulus full-sibs hybrid clones. The study was conducted in a clonal test, repeated at two different soils, in the state o

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Mota, Babiloni Adrián. "ANALYSIS OF LOW GLOBAL WARMING POTENTIAL FLUORIDE WORKING FLUIDS IN VAPOUR COMPRESSION SYSTEMS. EXPERIMENTAL EVALUATION OF COMMERCIAL REFRIGERATION ALTERNATIVES." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/62680.

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[EN] Climate change is one of the short term threats for the humanity because it can affect seriously to the environment and, consequently, to vegetal and animal life. If it is not stopped in next years, maybe this effect will be irreversible. Climate change is produced by anthropogenic emissions of Greenhouse Gas to Earth's atmosphere. Vapour compression systems are one of the main contributors to this phenomenon. Among them, commercial refrigeration applications, through HFC usage, can be highlighted. Since 1990s, developed countries supermarkets are using refrigerants (mainly R134a, R404A a

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Back, Izabelle, and Lars Dunberger. "Evaluating alternative refrigerants for the room air conditioner market." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173880.

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This study aimed to facilitate evaluation of alternative refrigerants for the air conditioner market. In order to achieve this target, two objectives were set. The first being the identification of alternative refrigerant with regard to regulations and trends. The second being enabling of thermodynamic evaluation of refrigerants for single components in air conditioners via design and installation of a test rig. A literature review was conducted to investigate the regulations, standards and trends for nine regions with high market shares. Furthermore, refrigerant substitutes for R410A and R22

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Miliutenko, Sofiia. "Life Cycle Impacts of Road Infrastructure : Assessment of energy use and greenhouse gas emissions." Licentiate thesis, KTH, Miljöstrategisk analys, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-89885.

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Road infrastructure is essential in the development of human society, but has both negative and positive impacts. Large amounts of money and natural resources are spent each year on its construction, operation and maintenance. Obviously, there is potentially significantenvironmental impact associated with these activities. Thus the need for integration of life cycle environmental impacts of road infrastructure into transport planning is currently being widely recognised on international and national level. However certain issues, such as energy use and greenhouse gas (GHG) emissions from the c

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Nordlund, Sara. "Contribution to climate change of a proposed horse manurecomposting system." Thesis, Mittuniversitetet, Avdelningen för ekoteknik och hållbart byggande, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-35833.

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Hästar producerar gödsel som är en blandning av avföring, urin och det strömaterial som hästarna står på. Hippologum är en ridanläggning i Umeå (Västerbotten, Sverige) som producerar 20-25 ton gödsel per vecka och när denna rapport skrevs hade anläggningen ingenstans att lagra gödseln. Detta var våren 2016. Målet med denna studie var att undersöka ett möjligt förvaltning- och komposteringssystem för hästgödsel mellan Hippologum och deponi- och avfallscentret Dåva DAC (som också är beläget i Västerbotten, Sverige) och var systemets största klimatpåverkan finns. En liten marknads

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Rowlings, David William. "Influence of historic land use change on the biosphere-atmosphere-exchange of C and N trace gases in the humid, subtropical region of Queensland." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/39257/1/David_Rowlings_Thesis.pdf.

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Increases in atmospheric concentrations of the greenhouse gases (GHGs) carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) due to human activities have been linked to climate change. GHG emissions from land use change and agriculture have been identified as significant contributors to both Australia’s and the global GHG budget. This is expected to increase over the coming decades as rates of agriculture intensification and land use change accelerate to support population growth and food production. Limited data exists on CO2, CH4 and N2O trace gas fluxes from subtropical or tropical s

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Amat, Albuixech Marta. "Búsqueda de fluidos de trabajo alternativos de bajo potencial calentamiento atmosférico para uso en Ciclos Orgánico Rankine de baja temperatura y pequeña potencia. Análisis de HCFO-1224yd(Z) como potencial candidato." Doctoral thesis, Universitat Jaume I, 2022. http://dx.doi.org/10.6035/14107.2022.427784.

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Esta tesis se centra en encontrar un fluido de bajo potencial calentamiento atmosférico (PCA) capaz de trabajar en instalaciones ORC de pequeña escala y baja temperatura previamente diseñadas para el uso de HFC-245fa. Para ello, además de revisar el estado en el que se encuentra esta tecnología, se realiza un estudio teórico y experimental. El estudio teórico compara el comportamiento del HFC-245fa con el de sus principales alternativas de bajo PCA: HCFO-1224yd(Z), HFO-1336mzz(Z), HCFO-1233zd(E), HFO-1234ze(Z), HFO-1336mzz(E) y R-514-A. Debido a sus similares resultados en cuanto a potencia y

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Khan, Mahmudur Aryan. "A comparative Life Cycle Analysis of new and old designs of crane truck frames : Case study at Vemservice." Thesis, Mittuniversitetet, Avdelningen för ekoteknik och hållbart byggande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-41976.

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The main objective of this Bachelor’s thesis is to investigate and deliver the results of environmental impacts of two different designs of crane truck frames. The aim is to investigate if additional new design of crane truck frames, with less energy and transportation during manufacturing of the crane truck, can improve energy efficiency of crane trucks throughout their lifecycle. Case study object for this report is Vemservice in Vemdalen, Sweden. As basis for the report the The Life Cycle Analysis ISO 14040 and ISO 14044 are used in this report in order to evaluate and compare the environme

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Ho, Cynthia Sin Tian. "Bank branches and Entrepreneurship : A spatial analysis of new firm formation in Swedish regions and industries in a changing financial landscape." Licentiate thesis, KTH, Bank och finans, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259725.

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The purpose of this thesis is to analyse how bank branch closure has affected the formation of new firms and to explore the varying local relationships between the accessibility of bank branches and new firm formation in 290 Swedish municipalities. In the first paper, the effect of bank branch closure is examined through spatial econometric analysis, in particular, the fixed effects and the random effects spatial panel models. The findings of the first paper show that an increase in the weighted distance to the nearest bank branches due to bank branch closure negatively affects new firm format

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Mateu, Royo Carlos. "Development of High Temperature Heat Pumps for Industrial Waste Heat Recovery." Doctoral thesis, Universitat Jaume I, 2021. http://dx.doi.org/10.6035/14107.2021.744033.

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One of the major challenges of this decade is developing more sustainable energy systems that contribute to environmental concern, especially climate change mitigation. Extending the operating conditions of the heat pump technology to higher temperatures will allow decarbonising the industrial sector from two slopes: recovering heat from waste heat sources that currently is being rejected to the ambient and produce heat at the required industrial thermal levels that become useful for the industrial processes. Both challenges will make possible reduce the equivalent CO2 emissions of the industr

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Tomassetti, Eleonora. "Analisi ambientale della supply chain di tessuti e pellami di un’azienda del settore calzaturiero." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Questo lavoro di tesi analizza l’impatto ambientale connesso all’utilizzo della pelle in un'azienda del settore calzaturiero, mettendo in luce le caratteristiche che rendono la pelle un materiale unico. Dalle analisi condotte sono venute alla luce problematiche di tracciabilità e di emissioni legate all’utilizzo della pelle che però, date le sue caratteristiche tecniche, risulta un materiale ancora oggi ineguagliabile. La pelle è, inoltre, un prodotto di scarto dell’industria alimentare. Per questo motivo, in un’ottica di economia circolare, è importante valorizzarlo con dei processi che risu

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Jonsson, Arvid, Moa Toll, Klara Friberg, Gustav Carlsson, and Daniel Åkerlind. "Kartläggning av förändringen i klimatpåverkan för en fordonsflotta." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-443999.

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From the year 2018 to 2020 Uppsala Skolfastigheter AB changed their vehicle fleet to follow Uppsala municipality’s goal of a fossil-fuel-free vehicle fleet. Fossil-fuel-free, according to the municipality’s regulations, means that a vehicle can run on fossil-free fuel. To evaluate Skolfastigheter’s initiative, this report will examine both the change in greenhouse gas emissions as well as the usage of fossil-free fuel from the year 2018 to the year 2020. The report will also evaluate what the most appropriate fuel for Skolfastigheter’s vehicle fleet is. The results showed that even though the

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Svensson, Michelle. "Life cycle assessment of the semidetached passive house "Röda lyktan" in northern Sweden : A comparison between the construction phase and the use phase." Thesis, Mittuniversitetet, Institutionen för teknik och hållbar utveckling, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-19559.

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This report is a life cycle assessment of a relatively newly built semidetached passive house/low energy house located in Östersund/Jämtland. The analysis concentrates on the building materials in the construction phase and the energy in the use phase for 50 years. The construction phase include frame, foundation, interior and exterior walls, ceiling and roof, middle floor structure, floor coverings, interior and exterior doors, windows, interior staircase with banisters, stove and FTX-ventilation system. The inventory to obtain the volume of each material has been made with the help of bluepr

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Hong, Chansun. "THE SPATIAL SPILLOVER IMPACT OF LAND BANK PROPERTIES ON NEARBY HOME SALE VALUES IN CLEVELAND, OH." Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1544926509521173.

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Ferranti, Francesca. "Il metodo Level(S) per il confronto dei profili ambientali di diverse soluzioni di involucro edilizio." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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Il settore dell’edilizia è uno dei maggiori responsabili delle alterazioni ambientali. All’interno dell’Unione Europea, l’edilizia è responsabile del 40% del consumo energetico e del 50% delle emissioni di anidride carbonica e gas. Nel 1987, Gro Harlem Brundtland nel rapporto «Our common future» evidenziò la necessità di attuare una strategia che integri le esigenze dello sviluppo tenendo conto dell’effetto che ha sull’ambiente. La strategia definita dal rapporto è stata denominata con il termine “sustainable development” che indica <<… quello sviluppo che consente alla generazione presente d

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Backman, Jonathan, Hajk Shakhnasarjan, and Charlie Willberg. "Klimatpåverkan av kontorsbyggnaden Juvelen : En undersökning om koldioxidutsläpp för kontorsbyggnaden Juvelen med LCA som verktyg." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-53466.

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The Swedish government set a climate goal until the year 2045, to not produce any greenhouse gases until 2045. This study is based on the problems surrounding the climate impact from the construction and real estate sector in Sweden. The construction company Skanska has made a major contribution with the recently new project Juvelen, which today is Sweden's most sustainable building. The demand for constructing buildings with lesser environmental impacts is increasing and constructions as Juvelen may be an important factor to achieve climate goals. Purpose: This study was done to determine the

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Kordi, Maryam. "Geographically weighted spatial interaction (GWSI)." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/4112.

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One of the key concerns in spatial analysis and modelling is to study and analyse similarities or dissimilarities between places over geographical space. However, ”global“ spatial models may fail to identify spatial variations of relationships (spatial heterogeneity) by assuming spatial stationarity of relationships. In many real-life situations spatial variation in relationships possibly exists and the assumption of global stationarity might be highly unrealistic leading to ignorance of a large amount of spatial information. In contrast, local spatial models emphasise differences or dissimila

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Briday, Régis. "Une histoire de la chimie atmosphérique globale : enjeux disciplinaires et d’expertise de la Couche d’ozone et du Changement climatique." Paris, EHESS, 2014. http://www.theses.fr/2014EHES0144.

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L'histoire des sciences de l'environnement a, jusqu'à présent, peu documenté l'apport des chimistes de l'atmosphère, qui formalisent les réactions chimiques se produisant au sein de l'atmosphère. Cette thèse porte spécifiquement sur la chimie atmosphérique globale. La chimie de l'atmosphère a été au centre de l'expertise sur la destruction anthropique de la couche d'ozone à partir de 1970. Les chimistes de l'atmosphère ont également participé à l'élaboration des rapports du GIEC (Groupe d'experts intergouvernemental sur l'évolution du climat) à partir de la fin des années 1980, ainsi qu'à des

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