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Relevant bibliographies by topics / Transport energy efficiency / Dissertations / Theses

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Dissertations / Theses on the topic 'Transport energy efficiency'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Stanovskyi, Yevhen. "Energy efficient transport and equipment." Thesis, Дніпропетровський національний університет залізничного транспорту ім. академіка В. Лазаряна, 2017. https://er.knutd.edu.ua/handle/123456789/9142.

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The purpose of the article is to emphasise the importance of energy efficient transport and equipment as the world practice demonstrates that increase in energy efficiency is the most effective direction of ensuring energy security of the country.<br>Автори статті приділяють увагу питанню важливості використання енергоощадного транспорту та обладнання, так як світовий досвід демонструє, що посилення заходів з енергозбереження є найбільш ефективним способом гарантування енергобезпеки країни.<br>Авторы статьи уделяют внимание важности проблеме использования энергосберегающего транспорта и оборуд

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2

Akena, p'Ojok Robert. "Improving road transport energy efficiency through driver training." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5275/.

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Fuel consumption by road vehicles is the most significant component of total road transport energy use and is significantly affected by driving style. This research was aimed at improving the effectiveness and efficiency of driver training for fuel economy for drivers involved in the management and operations of a road network in England. A unique approach to driver training was designed and tested with 94 drivers of heavy, medium and light vehicles. The improvement in fuel economy (in terms of MPG) for the first month after the training was observed to improve by up to 7%. The improvements re

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3

Kałuża, Andrzej. "Socioeconomic assessment and improvement of energy-efficiency in city rail transport /." Katowice : Komel, 2004. http://www.gbv.de/dms/bs/toc/493090088.pdf.

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4

Xylia, Maria. "Is energy efficiency the forgotten key to successful energy policy? : Investigating the Swedish case." Licentiate thesis, KTH, Energi och klimatstudier, ECS, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192291.

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Sweden aims to become one of the first fossil-free welfare countries in the world. In 2009, specific energy and climate policy targets were announced for 2020, which exceed the ambition of respective EU targets in some areas. The overarching objective of the thesis is to understand the role of energy efficiency in Swedish energy and climate policy frameworks, and identify the gaps that need to be addressed. In this context, energy efficiency is recognized as a challenge to address. Yet, there are reasons to believe that it is not being pursued with the same dedication as other energy and clima

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5

Pickering, Jason C. Pickering. "Understanding Coulombic Efficiency Limitations in an Acid-Base Energy Storage System: Mass Transport Through Nafion." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1528397906336044.

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6

Peake, Stephen Robert. "Cross-sector policy research : insights from the UK energy and transport sectors." Thesis, University of Cambridge, 1993. https://www.repository.cam.ac.uk/handle/1810/244626.

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Following established traditions in anthropology and sociology, where cross-border research helps to identify important themes which benefit from comparative study, this dissertation introduces cross-sector policy research as a new methodology for generating useful insights about public policy. The cross-sector method is applied to the study of the UK energy and transport sectors. A range of generic policy developments in the energy sector are identified including: the development of efficiency indicators, scenario analysis, and the establishment of energy efficiency programmes. Such developme

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7

Kamiya, Norikazu. "Classical Reduction of Quantum Master Equations as Similarity Transformation." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199085.

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8

Nordström, Erik. "Advanced Modelling and Energy Efficiency Prediction for Road Vehicles." Thesis, Umeå universitet, Institutionen för fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-175358.

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This thesis presents a first real world case-study of road transport operations that use the COVER format, in which the driver and the vehicle are regarded as separate entities. This format enables a complex representation of the transport operation that potentially better describe reality compared to the conventional representation used in today’s certification tools. The representation of operations treated in this thesis is called Operating Cycles and has been used to fully describe three representative transport missions from a case-study truck. Stochastically generated operating cycles ha

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9

Wang, Huajun. "Interplay between capacity and energy consumption in C-RAN transport network design." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-204939.

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Current mobile network architecture is facing a big challenge as the traffic demands have been increasing dramatically these years. Explosive mobile data demands are driving a significant growth in energy consumption in mobile networks, as well as the cost and carbon footprints [1]. In 2010, China Mobile Research Institute proposed Cloud Radio Access Network (C-RAN) [2], which has been regarded as one of the most promising architecture to solve the challenge of operators. In C-RAN, the baseband units (BBU) are decoupled from the remote radio units (RRH) and centralized in one or more locations

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10

Zhou, Jing. "Improving the energy efficiency of high speed rail and life cycle comparison with other modes of transport." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/25066.

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The world energy crisis and global warming call for a reduction of energy consumption. High speed rail, increasingly viewed as an effective solution to inter-city passenger transportation challenge of the 21st century, has the significant ability of increasing passenger capacity and reducing journey time. The advent of high speed rail provided many research opportunities. So far studies have been contributed from different perspectives: economical, environmental, and technical. The main research gaps are: addressing the problem of the effects of route geometry on train energy consumption and q

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11

Ajayi, Adeyemi Kazeem. "New Housing Developments: A Localisation Strategy considering Energy-Efficiency from an Urban Structure and Transport Perspective for the city of Falun." Thesis, Högskolan Dalarna, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:du-34469.

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There are several considerations when planning new housing developments, and resultant problems require critical analysis. This thesis has focused on studying some part of the potential issues in the case of a project in the city of Falun. The focus has been on energy and greenhouse gases (GHG)-efficient structures, through the analysis of the relationship between the transport system and residential development that can contribute to the reduction in emission’s harmful effect on human health and the environment. The overall aim has been on the sustainable location of housing with regards to t

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12

Nassiep, Kadri Middlekoop. "An energy efficient mass transportation model for Gauteng / Kadri Middlekoop Nassiep." Thesis, North-West University, 2011. http://hdl.handle.net/10394/8076.

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The demand for forensic social work as a specialist field is increasing rapidly, due to the increasing moral decline of the community and consequent higher demands set to generic social workers. Amendments to existing acts as well as the development of new legislation, lead to more opportunity for the prosecution of the perpetrator, and therefore a higher utilization of the forensic social worker. A need was experienced to do research regarding the gaps experienced by social workers or any other workers who are currently executing forensic assessments with the sexually traumatised child. The a

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13

Huang, Wei-Jie, and Wei-Jie Huang. "Towards Increased Photovoltaic Energy Generation Efficiency and Reliability: Quantum-Scale Spectral Sensitizers in Thin-Film Hybrid Devices and Microcracking in Monocrystalline Si." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/623175.

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The present work focuses on two strategies contributing to the development of high efficiency, cost-effective photovoltaic (PV) technology for renewable energy generation: the design of new materials offering enhanced opto-electronic performance and the investigation of material degradation processes and their role in predicting the long-term reliability of PV modules in the field. The first portion of the present work investigates the integration of a novel CdTe-ZnO nanocomposite material as a spectral sensitizer component within a thin-film, hybrid heterojunction (HJ) PV device structure. Q

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Sharif, Atif. "Reliable, congestion aware transport layer protocol for heterogeneous wireless sensor networks." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/87.

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Energy is the biggest concern for any heterogeneous WSNs and achieving high energy efficiency is of paramount importance for the longevity of a heterogeneous WSNs. Communicating in- formation from the sensing region to the sink is a critical task in the entire operation of a heterogeneous WSNs. Such information needs to be reliably communicated, while avoiding any network congestion, from source to sink in order to ensure that application-specific Quality of Service objectives are met for any given scenario. This thesis developed several transport layer protocols to address the issues of conge

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Fuentes, Pineda Rosinda. "Triphenylamine-based hole transport materials for perovskite solar cells." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31410.

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The rapid development in perovskite solar cells (PSC) has generated a tremendous interest in the photovoltaic community. The power conversion efficiency (PCE) of these devices has increased from 3.8% in 2009 to a recent certified efficiency of over 20% which is mainly the product of the remarkable properties of the perovskite absorber material. One of the most important advances occurred with the replacement of the liquid electrolyte with a solid state hole conductor which enhanced PCE values and improved the device stability. Spiro-OMeTAD (2,2',7,7'-tetrakis(N,N'-di-p-methoxyphenylamine)- 9,9

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16

Wallace, Andrew. "Reducing carbon emissions by households : the effects of footprinting and personal allowances." Thesis, De Montfort University, 2009. http://hdl.handle.net/2086/2402.

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Nearly half of Britain’s carbon dioxide emissions result from the activity of households, both within the home and from personal transport. This research examines how the carbon dioxide emissions of households can be reduced, particularly through the calculation of carbon footprints and testing the public’s reaction to the concept of personal carbon allowances (PCAs). Two data collection stages were used - a postal survey providing quantitative data, followed by semi-structured interviews producing mainly qualitative data. The research was carried out in a largely rural district which is run b

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17

Nygren, Johan. "On the impact of noise and energy demand from traffic : An assessment using microscopic modelling." Licentiate thesis, KTH, Marcus Wallenberg Laboratoriet MWL, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-292360.

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Noise emissions from transportation remain one of the greatest environmental issues of modern day. Inhabitants in urban environments are especially exposed, with almost 80 million people in the European Union exposed to noise levels exceeding the recommended limits set by the World Health Organization (WHO). While the health-related effects from exposure of traffic noise are problematic and of utmost importance to reduce, availability to efficient transport is also an essential necessity. These conflicting requirements on transportation calls for a more holistic approach to traffic analysis, a

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18

Giacosa, Matteo. "Carbon dioxide abatement options for heavy-duty vehicles and future vehicle fleet scenarios for Finland, Sweden and Norway." Thesis, KTH, Energisystemanalys, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226144.

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Road transport is responsible for a significant share of the global GHG emissions. In order to address the increasing trend of road vehicle emissions, due to its heavy reliance on oil, Nordic countries have set ambitious goals and policies for the reduction of road transport GHG emissions. Despite the fact that the latest developments in the passenger car segment are leading towards the progressive electrification of the fleet, the decarbonization of heavy-duty vehicle segment presents significant challenges that are yet to be overcome. This study focuses, on the first part, on the regulatory

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19

Olander, Petra. "Tribology for Greener Combustion Engines : Scuffing in Marine Engines and a Lubricating Boric Acid Fuel Additive." Doctoral thesis, Uppsala universitet, Tillämpad materialvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-333430.

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This thesis aims at increased knowledge in two fields of tribological research; both related to making currently used combustion engines greener. The first field regards the possibilities of using a boric acid fuel additive to increase fuel efficiency. The second field is about the severe wear phenomenon scuffing, which can become problematic when cargo ships are operated on low-sulphur fuel to reduce sulphuric emissions. Tribological tests were developed and performed to simulate the applications. Advanced surface analysis was performed to understand changes occurring on the outermost surface

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20

Marins, Karin Regina de Casas Castro. "Proposta metodológica para planejamento energético no desenvolvimento de áreas urbanas. O potencial da integração de estratégias e soluções em morfologia e mobilidade urbanas, edifícios, energia e meio ambiente: o caso da operação urbana Água Branca no município de São Paulo." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/16/16132/tde-09062010-155906/.

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O objeto da presente tese é o desenvolvimento de uma proposta metodológica para planejamento energético no desenvolvimento de áreas urbanas, na escala de distritos, bairros e unidades de vizinhança. A metodologia proposta é aplicável a estudos de desenvolvimento de novas áreas urbanas, distritos ou bairros e estudos para requalificação de áreas urbanas já ocupadas, como ferramenta de suporte ao planejamento e ao processo decisório. Inicialmente, foi produzida uma base referencial dos principais condicionantes para o planejamento energético urbano, segundo o escopo considerado nesse trabalho

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21

Arruda, Tiago José. "Espalhamento de ondas eletromagnéticas por esferas e cilindros magnéticos: confinamento e transporte de ondas no limite de pequenas partículas e independência da energia armazenada com relação à forma do centro espalhador." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/59/59135/tde-22122010-103549/.

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O espalhamento eletromagnético por uma esfera com propriedades ópticas e raio arbitrários, conhecido como espalhamento de Lorenz-Mie, ou por um cilindro circular infinito, pode ser resolvido analiticamente e é comumente tratado dentro da abordagem de espalhadores dielétricos. Na região óptica, tanto meio circundante quanto partícula espalhadora possuem o mesmo valor de permeabilidade magnética. A ausência do magnetismo nessa região do espectro torna o índice de refração relativo entre os meios interno e externo ao espalhador homogêneo equivalente ao respectivo índice de impedância óptica. Em r

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22

Abboubi, Adil El. "Étude et évaluation de la consommation énergétique d'une balise ferroviaire fondée sur l'ULB et le retournement temporel." Thesis, Valenciennes, 2016. http://www.theses.fr/2016VALE0009/document.

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Dans un contexte où les ressources énergétiques sont moindres et la demande en termes de débit de communication est forte, il est intéressant de proposer des solutions techniques au niveau de la couche physique permettant d’optimiser la consommation énergétique de systèmes. Actuellement, pour une localisation précise et un transfert de données entre voie et trains efficace, la signalisation ferroviaire exploite des balises disposées entre les rails. La durée possible de la communication entre trains et balises s’avère très brève et n’est effective que lorsque le train passe juste au-dessus de

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23

Bibri, Mohamed. "Sustaining ICT for Sustainability : Towards Mainstreaming De–carbonization–oriented Design & Enabling the Energy–Efficient, Low Carbon Economy." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5936.

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The study set out to understand and demonstrate the role the ICT sector could play as a critical enabler in the transition and progress towards an energy– efficient, low carbon economy. More specifically, the study of sustaining ICT for sustainability has twofold intent: (2) to investigate the direct footprint of ICT sector and explore how it can be tackled through adopting sustainable design–based solutions; and (2) to highlight the enabling potential of ICT sector to mitigate climate change and massively improve energy efficiency across the economy, identifying and quantifying the global ICT

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Dahlqvist, Johan. "Cavity Purge Flows in High Pressure Turbines." Doctoral thesis, KTH, Kraft- och värmeteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-218468.

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Turbomachinery forms the principal prime mover in the energy and aviation industries. Due to its size, improvements to this fleet of machines have the potential of significant impact on global emissions. Due to high gas temperatures in stationary gas turbines and jet engines, areas of flow mixing and cooling are identified to benefit from continued research. Here, sensitive areas are cooled through cold air injection, but with the cost of power to compress the coolant to appropriate pressure. Further, the injection itself reduces output due to mixing losses.A turbine testing facility is center

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Cecone, Eduardo Christiano. "Modelagem energética de sistema de transporte pneumático utilizando planejamento fatorial." reponame:Repositório Institucional da UFABC, 2017.

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Orientador: Prof. Dr. Douglas Alves Cassiano<br>Em meados da década de 1920 tornou-se comum o emprego de sistemas pneumáticos destinados à movimentação de materiais particulados sólidos. As principais limitações para estas aplicações estão relacionadas a aspectos financeiros, em especial ao elevado consumo energético destes sistemas em comparação a outras tecnologias existentes, porém, a partir dos ganhos relacionados à eficiência energética, é fortemente recomendável considerar o seu emprego como primeira opção, mesmo em aplicações tradicionalmente mecânicas. Levantamento realizado junto à ba

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León, Montiel Roberto de Jesús. "Quantum-based spectroscopy and efficient energy transport with biomolecules." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/283108.

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For many years, the fields of quantum optics and biology have rarely shared a common path. In quantum optics, most of the concepts and techniques developed over the years stand for systems where only a few degrees of freedom are considered and, more importantly, where the systems under study are assumed to be completely isolated from their surrounding environment. This situation is far from what we can find in nature. Biological complexes are, by definition, warm, wet and noisy systems subjected to environmental fluctuations, where quantum phenomena are unlikely to be observed. Notwithstanding

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Banerjee, Utsav. "Energy-efficient protocols and hardware architectures for transport layer security." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111861.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 99-104).<br>The Internet of Things (IoT) has introduced a vision of an Internet where computing and sensing devices are interconnected. Digitally connected devices are encroaching on every aspect of our lives, including our hom

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Pedroso, Guilherme. "Avaliação energética, econômica e socioambiental de alternativas para sistemas de transportes urbanos coletivos a partir do modelo de apoio multicritério à decisão." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/106/106131/tde-22022018-171520/.

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Essa pesquisa tem como foco a tomada de decisão para a escolha de modais de transporte urbano coletivo e analisa os desempenhos operacionais e funcionais dos sistemas Bus Rapid Transit (BRT), Veículo Leve sobre Trilhos (VLT) e Monotrilho. Um modelo de apoio multicritério à decisão (AMD) em cenários complexos é utilizado na análise e tem como dados de entrada as preferências subjetivas de agentes de decisão (stakeholders) e os desempenhos objetivos e subjetivos dos três modais com relação a um sistema de cinco critérios e 22 subcritérios. Tal sistema cobre os eixos de eficiência energética, cus

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Ben, Jmaa Chtourou Yomna. "Implémentation temps réel des algorithmes de tri dans les applications de transports intelligents en se basant sur l'outil de synthèse haut niveau HLS." Thesis, Valenciennes, 2019. http://www.theses.fr/2019VALE0013.

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Les systèmes de transports intelligents jouent un rôle important dans la minimisation des accidents, embouteillage, et la pollution d’air. Parmi ces systèmes, nous citons le domaine avionique qui utilise dans plusieurs cas les algorithmes de tri qui sont l’une des opérations importante pour des applications embarquées temps réels. Cependant, l’évolution technologique tend vers des architectures de plus en plus complexes pour répondre aux exigences applicatives. À cet égard, les concepteurs trouvent leur solution idéale dans l’informatique reconfigurable, basée sur des architectures hétérogènes

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López, Vizcaíno Jorge [Verfasser], Peter [Akademischer Betreuer] Krummrich, and Andreas [Gutachter] Kirstädter. "Energy-efficient design of optical transport networks / Jorge López Vizcaíno ; Gutachter: Andreas Kirstädter ; Betreuer: Peter Krummrich." Dortmund : Universitätsbibliothek Dortmund, 2016. http://d-nb.info/1130401502/34.

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Barbosa, Maísa Ribeiro. "Mobilidade sustentável no Brasil: análise de impactos energéticos do incentivo ao transporte coletivo e da eletrificação de ônibus." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-01112018-111915/.

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A mobilidade de pessoas no mundo é não apenas um dos maiores desafios tecnológico e político do século XXI, como também uma área de alto impacto energético e ambiental. O presente trabalho busca analisar o transporte rodoviário de passageiros no Brasil pela perspectiva energética. Para a fundamentação teórica, aborda-se a dinâmica da mobilidade no mundo, alguns conceitos fundamentais e a relação entre o perfil de transportes, o perfil energético do setor e suas externalidades negativas. Em seguida, é apresentado o conceito de Mobilidade Sustentável, que busca apontar diretrizes para mitigação

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Dini, Alina L. "Influence of new car buyers' purchase experience on plug-in electric vehicle demand." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/116541/1/Alina_Dini_Thesis.pdf.

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Plug-in electric vehicles (PEVs) are one new technology which offers promise for transport sustainability and improving energy efficiency. Global enthusiasm for PEVs has spurred broad-reaching interest, but for jurisdictions where PEV policies are absent, as in Australia, consumer adoption continues to be low. Research into the barriers of adoption for PEVs often identifies cost and lack of infrastructure as key barriers, but consumer's purchase experience plays a pivotal role in technology adoption. This research will help the PEV industry and governments to understand how critical the consum

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Madani, Sepideh Sadat. "Investigation of charge transport metal oxides for efficient and stable perovskite solar cells." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/235892/1/Sepideh%2BSadat%2BMadani%2BThesis%282%29.pdf.

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This research investigates various thin-film metal oxides as charge transport layer for improving the performance and stability of perovskite solar cells. Physical Vapor Deposition techniques such as magnetron sputtering, and electron beam evaporation were used to fabricate the metal oxide thin films. The structural, morphological, chemical, optical, electrical, and electronic properties of the films were studied. Solar Cell Capacitance Simulator was employed for investigating the performance of the PSC using the experimental data as input parameters. Results showed that optimized properties o

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Galbieri, Rodrigo 1977. "O transporte rodoviário de passageiros no Brasil : estratégias de mitigação do consumo energético e da emissão de CO2." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264173.

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Orientador: Andre Felipe Simões<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-22T23:03:59Z (GMT). No. of bitstreams: 1 Galbieri_Rodrigo_M.pdf: 3308453 bytes, checksum: dd1bd5b8a88bb0667b4287d45ba0959b (MD5) Previous issue date: 2009<br>Resumo: O presente Estudo possui como objetivo principal realizar uma análise quantitativa dos impactos sobre o consumo de combustíveis e das emissões de CO2 de medidas de eficiência energética e aumento no uso de biocombustíveis para o setor de transportes rodoviário bras

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FARIAS, Fabrício de Souza. "Designing cost-efficient transport solutions for fixed and mobile broadband access network." Universidade Federal do Pará, 2016. http://repositorio.ufpa.br/jspui/handle/2011/7956.

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Submitted by camilla martins (camillasmmartins@gmail.com) on 2017-03-06T16:07:10Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_DesigningCost-EfficientTransport.pdf: 2918415 bytes, checksum: 7ca8ff5f47a7eb9fd97957edfcaf7b51 (MD5)<br>Approved for entry into archive by Edisangela Bastos (edisangela@ufpa.br) on 2017-03-22T13:30:51Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_DesigningCost-EfficientTransport.pdf: 2918415 bytes, checksum: 7ca8ff5f47a7eb9fd97957edfcaf7b51 (MD5)<br>Made

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Silva, Rui Manuel Ramos da. "Soluções sustentáveis no transporte vertical. A travagem regenerativa." Master's thesis, Instituto Superior de Economia e Gestão, 2012. http://hdl.handle.net/10400.5/10346.

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Mestrado em Gestão e Estratégia Industrial<br>A procura pela eficiência energética tornou-se uma responsabilidade de todos. Seja por questões ambientais, pelo escasseio de combustíveis fósseis, por cumprimento de legislações, pela procura de competitividade ou apenas pela busca de poupança é notória a insistência na utilização racional de energia, na poupança energética e na consciencialização ambiental. As empresas tentam a todo o custo encontrar soluções para fazer face a este problema e assim se manterem competitivas. Porém, a ideia de um produto inovador por si só não é suficiente para lan

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Barhemmati, Rajab Nastaran. "Thermal Transport Properties Enhancement of Phase Change Material by Using Boron Nitride Nanomaterials for Efficient Thermal Management." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1752408/.

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In this research thermal properties enhancement of phase change material (PCM) using boron nitride nanomaterials such as nanoparticles and nanotubes is studied through experimental measurements, finite element method (FEM) through COMSOL 5.3 package and molecular dynamics simulations via equilibrium molecular dynamics simulation (EMD) with the Materials and Process Simulations (MAPS 4.3). This study includes two sections: thermal properties enhancement of inorganic salt hydrate (CaCl2∙6H2O) as the phase change material by mixing boron nitride nanoparticles (BNNPs), and thermal properties enhan

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Santos, Vitor Luiz Rigoti dos. "Análise experimental dos processos de transferência de calor aplicados à concentração solar." Universidade Federal do Espírito Santo, 2008. http://repositorio.ufes.br/handle/10/6243.

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Made available in DSpace on 2016-12-23T14:08:12Z (GMT). No. of bitstreams: 1 Vitor Luiz Rigoti dos Anjos.pdf: 1989527 bytes, checksum: ff87f9a6cd0a1d2d7314336dc8689bf7 (MD5) Previous issue date: 2008-07-28<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Having in mind the necessity to pump heavy crude oil from notoriously sunny regions of Brazil (northern Brazil regions general speaking or northern Espirito Santo state specifically), the utilization of solar radiation appears as an alternative thermal source to heat on-shore pipelines and storage tanks. The present work exh

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Le, Roux Daniël Francois. "Investigation, development and testing of a low cost Solar Heat Barrow (SHB) and purifier / D.F. le Roux." Thesis, North-West University, 2003. http://hdl.handle.net/10394/204.

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Many rural communities in South Africa do not have running water or electricity. The fetching and heating of water is therefore a time consuming and expensive daily ritual. The use of energy sources such as wood or coal are not readily available and cause environmental pollution. Although solar water heaters are commonly available in South Africa, they are very seldom used in rural areas. Whilst this can mostly be attributed to a high system cost, current designs also do not cater for specific rural problems such as the transporting or purification of water. A prototype model, designed with su

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Genet, Benjamin. "On monitoring methods and load modeling to improve voltage stability assessment efficiency." Doctoral thesis, Universite Libre de Bruxelles, 2009. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210258.

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Power systems must face new challenges in the current environment. The energy market liberalization and the increase in the loading level make the occurrence of instability phenomena leading to large blackouts more likely. Existing tools must be improved and new tools must be developed to avoid them.<p><p>The aim of this thesis is the improvement of the voltage stability assessment efficiency. Two orientations are studied: the monitoring methods and the load modeling.<p><p>The purpose of the monitoring methods is to evaluate the voltage stability using only measurements and without running sim

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Nasr, Sarah. "Optimisation d’un réseau ferroviaire à l’aide de solutions smart-grids." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLC026/document.

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L'amélioration de l'efficacité énergétique est devenue aujourd'hui une nécessité dans tous les domaines techniques. La réduction de la consommation, et donc du bilan carbone, est placée parmi les priorités mondiales tel que le paquet énergie-climat 2020 de l'Union Européenne.Les systèmes ferroviaires font partie des plus grands consommateurs d'énergie. Des solutions électriques sont développées pour réduire les pertes dans ces systèmes, optimiser la consommation et donc réduire la facture énergétique globale. Étant donné la diversité de ces systèmes, deux catégories principales sont considérée

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Biaou, Ulrich. "Étude et mise en oeuvre d'une plateforme hybride basée sur du sans fil pour l'efficience énergétique et le contrôle d'accès dans le train." Thesis, Valenciennes, 2017. http://www.theses.fr/2017VALE0042/document.

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Les besoins de nouveaux services dans les rames ferroviaires ( le comptage, l’efficience énergétique, le confort et la sécurité des passagers etc.), risquent de saturer à terme les systèmes de communication filaires mis en place il y a une vingtaine d’années. Les réseaux de capteurs sans fil, par leurs avantages (déploiement facile, capacité à s’adapter à plusieurs types d’environnements, faible consommation d’énergie), ouvrent de nombreuses perspectives pour les systèmes de gestion énergétique. Le but de ce travail de thèse est d’étudier et mettre en oeuvre un réseau de capteurs sans fil à l’

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Melendez, Albert, and 林波波. "Measuring Energy Efficiency in Belize’s Road Passenger Transport Sector." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/41904888177658975942.

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碩士<br>國立中央大學<br>國際永續發展碩士在職專班<br>104<br>The Transport sector is one of the major energy consumers. Energy consumption in Belize is growing every year. In situations of increasing global energy demands and rising energy costs, conserving energy becomes a very important issue. Energy efficiency is one of the best and the most frequently used indicators of energy use. Energy intensity in transport is a measure of the energy efficiency in the sector. The main objective of this paper is to determine whether there was energy efficiency Belize’s Road passenger transport sector from 2000 to 2008. This

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(6689618), Tingmingke Lu. "ESSAYS ON THE ECONOMICS OF MOTOR VEHICLE ENERGY EFFICIENCY." Thesis, 2019.

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<div>The purpose of this dissertation is to study the effectiveness of public policies in generating fuel savings and emissions reductions. I focus on applying various empirical methods to analyze consumer responses to policy changes on both extensive and intensive margins. This dissertation consists of two chapters.</div><div><br></div><div>In the first chapter, I compare the effectiveness of fuel taxes and product taxes on reducing gasoline consumption of new car buyers. I employ a unified data source for vehicle choice and subsequent vehicle use to estimate a random effects logit demand mod

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Haase, M. "Energy-efficient large medium-speed catamarans : hull form design by full-scale CFD simulations." Thesis, 2015. https://eprints.utas.edu.au/23195/1/Haase_whole_thesis_ex_pub_mat.pdf.

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Large medium-speed catamarans are currently under development as a new class of vessel for economically efficient and more environmentally sustainable fast sea transportation. Their design is based on current high-speed catamarans, to adopt advantages such as large deck areas and low wave-making resistance, but they will operate at lower speeds and carry a higher deadweight to obtain higher transport efficiency. They operate at speeds around the main drag hump, where the wave-making drag coefficient is at its maximum. Hence this speed range is usually avoided by boat designers no precise

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Simões, Catarina Cerqueira da Silva. "Bipolar Membrane Based Energy Storage System: The Acid Base Flow Battery." Master's thesis, 2018. http://hdl.handle.net/10362/47947.

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AYADI, Ahmed. "L'efficacité énergétique des protocoles de transport fiables pour les réseaux sans fil à faible consommation d'énergie." Phd thesis, 2012. http://tel.archives-ouvertes.fr/tel-00741994.

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Low power and Lossy Networks (LLNs) such as wireless sensor networks are currently used in many important applications fields such as remote environment monitoring and target tracking. This deployment has been enabled by the availability, especially in recent years, of embedded micro-controller devices that are smaller and cheaper. These devices are equipped with wireless interfaces, with which they can communicate with each other to form a network. In this thesis we focus on studying the energy consumption of reliable transport protocols over LLNs. Recently, much research has been carried out

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Xie, Zongli. "Hybrid organic-inorganic pervaporation membranes for desalination." Thesis, 2012. https://vuir.vu.edu.au/21443/.

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Membrane desalination using reverse osmosis (RO) has been the leading candidate technology for supplying fresh water in recent years. However, there is a strong motivation for improving the established membrane process and/or developing alternative membrane technologies to overcome the limitations of high energy cost and brine discharge problems of RO technology. In the later context, pervaporation is a potential membrane technology as it has the advantage that the energy need is essentially independent of the concentration of the salt feed water. The pervaporation process combines the e

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Χριστουλάκη, Αναστασία. "Μελέτη των συνθηκών ανοδίωσης για την παραγωγή μεμβρανών πορώδους αλουμίνας με ελεγχόμενα χαρακτηριστικά". Thesis, 2014. http://hdl.handle.net/10889/8114.

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Στην παρούσα εργασία μελετάται πειραματικά η ανάπτυξη μεμβρανών πορώδους αλουμίνας με ελεγχόμενο πάχος, διάμετρο πόρου, σε ηλεκτρολύτη οξαλικού οξέος συγκεντρώσεως 0.3Μ με εφαρμοζόμενη τάση 40V και 50V. Για την κατανόηση του μηχανισμού της δημιουργίας των μεμβρανών πορώδους αλουμίνας γίνεται μια βιβλιογραφική παρουσίαση των μοντέλων ανάπτυξης της. Από τα πειράματα προκύπτει ότι ο ρυθμός ανάπτυξης του πάχους της μεμβράνης ακολουθεί τον νόμο του Faraday με απόδοση που εξαρτάται από την τάση ανοδίωσης. Τέλος υπολογίζεται η ενέργεια ενεργοποίησης για την αντίδραση του σχηματισμού της πορώδους αλο

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Zhang, Haibo. "Efficient data transport in wireless sensor networks." Thesis, 2009. http://hdl.handle.net/2440/56028.

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Providing efficient data transport is one of the uppermost objectives in the design of wireless sensor networks (WSNs) since the primary role for each sensor is to report the sensed data to the data sink(s). This thesis focuses on designing efficient data transport schemes for WSNs in the dimensions of energy consumption and time respectively. The developed schemes can be directly applied in a number of applications such as intrusion detection, target tracking, environment monitoring, etc., and can be further extended to underwater acoustic sensor networks and unmanned aerial vehicles (UAVs) n

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