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Dissertations / Theses on the topic 'Thermal energy storage material'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Sözen, Zeki Ziya. "Thermal energy storage by agitated capsules of phase change material." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25974.

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Thermal energy storage via the latent heat of suitable phase change materials has the advantages of higher energy storage density and relatively isothermal behaviour compared to sensible heat storage systems. Glauber's salt (Na₂S0₄∙10H₂0) is one of the most extensively studied phase change materials for solar energy systems because of its low price, suitable phase change temperature and high latent heat. However, segregation due to incongruent melting behaviour leading to loss in the heat storage efficiency upon repeated melting-freezing cycling is a serious problem which has severely limited

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2

Fredi, Giulia. "Multifunctional polymer composites for thermal energy storage and thermal management." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/265328.

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Thermal energy storage (TES) consists in storing heat for a later use, thereby reducing the gap between energy availability and demand. The most diffused materials for TES are the organic solid-liquid phase change materials (PCMs), such as paraffin waxes, which accumulate and release a high amount of latent heat through a solid-liquid phase change, at a nearly constant temperature. To avoid leakage and loss of material, PCMs are either encapsulated in inert shells or shape-stabilized with porous materials or a nanofiller network. Generally, TES systems are only a supplementary component added

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3

Bugaje, Idris M. "Thermal energy storage in phase change materials." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335920.

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4

Oliver, David Elliot. "Phase-change materials for thermal energy storage." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/17910.

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There is a current requirement for technologies that store heat for both domestic and industrial applications. Phase-change materials (PCMs) represent an important class of materials that offer potential for heat storage. Heat-storage systems are required to undergo multiple melt/freeze cycles without any change in melting-crystallisation point and heat output. Salt hydrates are attractive candidates on account of their high energy densities, but there are issues associated with potential crystallisation of lower-hydrates, long-term stability, and reliable nucleation. An extensive review of th

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5

Abou-Ziyan, H. Z. Z. "Heat and momentum transfer in porous material used for thermal energy storage." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233826.

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6

Quant, Colón Laura Marcela. "Study of a urea-based phase change material for thermal energy storage." Thesis, Pau, 2020. http://www.theses.fr/2020PAUU3010.

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La technologie de stockage de l'énergie thermique par chaleur latente (LHTES) est abordée en travaillant à la fois sur les matériaux à changement de phase MCP utilisés et sur les systèmes de stockage techniquement et économiquement viables pour leur intégration dans les bâtiments. En ce qui concerne le matériau MCP, un mélange eutectique d'urée et de nitrate de sodium a été précédemment identifié comme un bon candidat pour les applications eau chaude sanitaire et chauffage. L'un des principaux objectifs de la thèse de doctorat était la caractérisation de ces aspects pour évaluer l’utilisation

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7

Lefebvre, Dominique. "Thermal Energy Storage Using Adsorption Processes for Solar and Waste Heat Applications: Material Synthesis, Testing and Modeling." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34173.

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As the worldwide energy demand continues to increase, scientists and engineers are faced with the increasingly difficult task of meeting these needs. Currently, the major energy sources, consisting of oil, coal, and natural gas, are non-renewable, contribute to climate change, and are rapidly depleting. Renewable technology research has become a major focus to provide energy alternatives which are environmentally-friendly and economically competitive to sustain the future worldwide needs. Thermal energy storage using adsorption is a promising technology which can provide energy for heating and

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8

Kotze, Johannes Paulus. "Thermal energy storage in metallic phase change materials." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96049.

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Thesis (PhD) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Currently the reduction of the levelised cost of electricity (LCOE) is the main goal of concentrating solar power (CSP) research. Central to a cost reduction strategy proposed by the American Department of Energy is the use of advanced power cycles like supercritical steam Rankine cycles to increase the efficiency of the CSP plant. A supercritical steam cycle requires source temperatures in excess of 620°C, which is above the maximum storage temperature of the current two-tank molten nitrate salt storage, which stores thermal

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9

Pitié, Frédéric. "High temperature thermal energy storage : encapsulated phase change material particles : determination of thermal and mechanical properties." Thesis, University of Warwick, 2012. http://wrap.warwick.ac.uk/57108/.

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10

Chiu, Justin NingWei. "Heat Transfer Aspects of Using Phase Change Material in Thermal Energy Storage Applications." Licentiate thesis, KTH, Kraft- och värmeteknologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-34263.

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Innovative methods for providing sustainable heating and cooling through thermal energy storage (TES) have gained increasing attention as heating and cooling demands in the built environment continue to climb. As energy prices continue to soar and systems reach their maximal capacity, there is an urgent need for alternatives to alleviate peak energy use. TES systems allow decoupling of energy production from energy utilization, both in location and in time. It is shown in this thesis that successful implementation of TES in the built environment alleviates peak energy load and reduces network

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11

Irwin, Matthew A. "Testing of Carbon Foam with a Phase Change Material for Thermal Energy Storage." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1399489817.

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12

Mahdi, Jasim M. "ENHANCEMENT OF PHASE CHANGE MATERIAL (PCM) THERMAL ENERGY STORAGE IN TRIPLEX-TUBE SYSTEMS." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/dissertations/1533.

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The major challenge associated with renewable-energy systems especially solar, is the supply intermittency. One effective solution is to incorporate thermal energy storage components utilizing phase change materials (PCMs). These materials have the potential to store large amounts of energy in relatively small volumes and within nearly an isothermal storage process. The primary drawback of today’s PCMs is that their low thermal conductivity values critically limit their energy storage applications. Also, this grossly reduces the melting/ solidification rates, thus making the system response ti

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13

Fredi, Giulia. "Multifunctional polymer composites for thermal energy storage and thermal management." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/265328.

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Thermal energy storage (TES) consists in storing heat for a later use, thereby reducing the gap between energy availability and demand. The most diffused materials for TES are the organic solid-liquid phase change materials (PCMs), such as paraffin waxes, which accumulate and release a high amount of latent heat through a solid-liquid phase change, at a nearly constant temperature. To avoid leakage and loss of material, PCMs are either encapsulated in inert shells or shape-stabilized with porous materials or a nanofiller network. Generally, TES systems are only a supplementary component added

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14

Cho, Eugene N. (Eugene Nammyoung). "Understanding and engineering azobenzene for thermal energy storage." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111320.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 135-146).<br>This thesis focuses on the understanding and engineering of a molecule known as azobenzene which holds unique properties for thermal storage applications. The azobenzene molecule undergoes structural change into a metastable state which has the ability to store energy. This thesis utilizes the energy storage and structural change properties of this molecule to develop new materials for t

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15

Boampong, James Kwadwo. "Solar thermal heating of a glasshouse using phase change material (PCM) thermal storage techniques." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/12863.

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The Royal Botanic Gardens (RGB) is used as an umbrella name for the institution that runs Kew and Wakehurst Place gardens in Sussex The RBG has a large number of glasshouses at Kew and Wakehurst sites that consume lots of heating energy which is a major concern and the group is looking for an alternative heating system that will be more efficient and sustainable to save energy, cost and reduce CO2 emissions. Glasshouse due to greenhouse effect trap solar energy in the space with the slightest solar gains but the energy trapped in the space most often is vented through the roof wasted to keep t

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16

Nithyanandam, Karthik. "Investigations on Latent Thermal Energy Storage for Concentrating Solar Power." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23189.

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Thermal energy storage (TES) in a concentrating solar power (CSP) plant allows for continuous operation even during times when solar radiation is not available, thus providing a reliable output to the grid. Energy can be stored either as sensible heat or latent heat, of which latent heat storage is advantageous due to its high volumetric energy density and the high Rankine cycle efficiency owing to the isothermal operation of latent thermal energy storage (LTES) system. Storing heat in the form of latent heat of fusion of a phase change material (PCM), in addition to sensible heat, significant

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17

Pendyala, Swetha. "Macroencapsulation of Phase Change Materials for Thermal Energy Storage." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4200.

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The use of a latent heat storage system using phase change materials (PCMs) is an effective way of storing thermal energy. Latent heat storage enables high-energy storage density which reduces the footprint of the system and the cost. However, PCMs have very low thermal conductivities making them unsuitable for large-scale use without enhancing the effective thermal conductivity. In order to address, the low thermal conductivity of the PCMs, macroencapsulation of PCMs has been adopted as an effective technique. The macroencapsulation not only provides a self-supporting structure of PCM and sep

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18

Alkhazaleh, A. "Thermal energy storage and fire safety of building materials." Thesis, University of Bolton, 2018. http://ubir.bolton.ac.uk/1988/.

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Energy storage using organic phase change materials (PCMs) has attracted significant attention in recent years for renewable energy utilization in building materials. PCMs are capable of storing and releasing a large amount of latent heat during their phase transitions. Paraffin (PA), a eutectic mixture (EM) of capric acid (CA) and lauric acid (LA) and butyl stearate (BS) have been selected as PCMs for this work due to their melting temperatures being close to human comfort temperature, 17 - 28 oC. Plaster (PL) as a building material is chosen due to its ease of construction into plaster board

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19

Mohiuddin, Mohammed Salman. "Membrane-Based Energy Recovery Ventilator Coupled with Thermal Energy Storage Using Phase Change Material for Efficient Building Energy Savings." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404519/.

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This research work is focused on a conceptual combination of membrane-based energy recovery ventilator (ERV) and phase change material (PCM) to provide energy savings in building heating, ventilation & air-conditioning (HVAC) systems. An ERV can recover thermal energy and moisture between the outside fresh air (OFA) entering into the building and the exhaust air (EA) leaving from the building thus reducing the energy consumption of the HVAC system for cooling and heating the spaces inside the building. The membranes were stacked parallel to each other forming adjacent channels in a counter-flo

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Sridharan, Prashanth. "Aspect Ratio Effect on Melting and Solidification During Thermal Energy Storage." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4777.

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The present work investigates, numerically, the process of melting and solidification in hollow vertical cylinders, filled with air and phase change material (PCM). The PCM used is sodium nitrate, which expands upon melting. Therefore, a void must be present within the cylinder, which is filled with air. The influence of cylinder shape on melting time is determined. The numerical model takes both conductive and convective heat transfer into account during the melting process. The Volume-of-Fluid (VOF) model is used to track the interface between the PCM and air as the PCM melts. Three dimensio

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21

Valentini, Francesco. "Development of insulating materials with thermal energy storage/release capability." Doctoral thesis, Università degli studi di Trento, 2022. https://hdl.handle.net/11572/335644.

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Nowadays the environmental sustainability and the limitation of the energy consumption of buildings is of substantial importance in order to reduce greenhouse gases emissions and mitigate the consequences of climate change. Thermal energy storage (TES) allows to store thermal energy when available in order to use it when and where necessary. The use of insulating materials with TES capability may results in the compensation of energy absorption peaks caused by air conditioning or by space heating with a consequent reduction of energy consumption and related CO2 emissions. This work aims at th

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22

Bhardwaj, Abhinav. "Metallic Encapsulation for High Temperature (>500 °C) Thermal Energy Storage Applications." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5843.

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Deployment of high temperature (>500 °C) thermal energy storage in solar power plants will make solar power more cost competitive and pave the way towards a sustainable future. In this research, a unique metallic encapsulation has been presented for thermal energy storage at high temperatures, capable of operation in aerobic conditions. This goal was achieved by employing low cost materials like carbon steel. The research work presents the unique encapsulation procedure adopted, as well as various coatings evaluated and optimized for corrosion protection. Experimental testing favored the use o

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23

Schmidt, Joel Edward. "The Use of Ammonium Carbamate as a High Specific Thermal Energy Density Material for Thermal Management of Low Grade Heat." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1310666985.

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24

Graham, M. J. "Encapsulated salt hydrate phase change materials for thermal energy storage." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3012709/.

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25

Al-Maghalseh, Maher. "Compact solar thermal energy storage systems using phase change materials." Thesis, Northumbria University, 2014. http://nrl.northumbria.ac.uk/23579/.

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The present research explores numerically and experimentally the process of melting and solidification of Phase Change Materials (PCM) in a latent heat thermal energy storage system (LHTESS). Further, the study will investigate various methods of intensification of heat transfer in such materials by means of metallic fins, filling particles or nanoparticles and by choosing the optimal system geometry for a rapid development of free convection flows during the melting process. The study includes three main parts. First, 3D CFD modelling was performed for the melting performance of a shell-and-t

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26

Oró, Prim Eduard. "Thermal energy storage (TES) using phase change materials (PCM) for cold applications." Doctoral thesis, Universitat de Lleida, 2013. http://hdl.handle.net/10803/110542.

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L’objectiu d’aquesta tesis doctoral és el desenvolupament d’un sistema d’emmagatzematge d’energia tèrmica (TES) mitjançant la utilització de materials de canvi de fase (PCM) per aplicacions a baixa temperatura, en particular, per a congeladors comercials. Es provarà tant experimental com numèricament la millora de les condicions de l’emmagatzematge i també la millora de la qualitat dels aliments emmagatzemats/transportats. També inclou la investigació de nous PCMs, estudiant la modificació de la temperatura de canvi de fase i analitzant velocitats de degradació i corrosió amb els materia

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27

Hassan, Hafiz Muhammad Adeel. "Development and Evaluation of a CFD Model to Simulate Thermal Performance of Phase Change Material (PCM) Based Energy Storage Systems." Thesis, KTH, Kraft- och värmeteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150715.

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Waste heat can be recovered and used in different processes to increase energy efficiency and reduce CO2 emissions. It has become an attractive area of research for scientists and several techniques are being investigated and practiced to recover, store and use waste heat. Thermal Energy Storage is one of the modern techniques that is used to store and use waste heat. Energy can be stored in both sensible and latent forms of heat. Latent heat storage is the most efficient way of storing thermal energy as it provides higher storage density and lower temperature differential between storing and

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Schafer, KelseyLee H. "Stratified Laboratory Thermal Energy Storage (LabTES) Tank Experiments: Sensible Only and Sensible Augmented with PCM-Filled Tubes." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1485188766373872.

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29

Johnson, Douglas James. "Carbon Foam Infused with Pentaglycerine for Thermal Energy Storage Applications." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1304086567.

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Ramos, Archibold Antonio Miguel. "Thermal Assessment of a Latent-Heat Energy Storage Module During Melting and Freezing for Solar Energy Applications." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5433.

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Capital investment reduction, exergetic efficiency improvement and material compatibility issues have been identified as the primary techno-economic challenges associated, with the near-term development and deployment of thermal energy storage (TES) in commercial-scale concentrating solar power plants. Three TES techniques have gained attention in the solar energy research community as possible candidates to reduce the cost of solar-generated electricity, namely (1) sensible heat storage, (2) latent heat (tank filled with phase change materials (PCMs) or encapsulated PCMs packed in a vessel) a

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Ryglowski, Brian K. "Characterization of Carbon Nanotube-Enhanced water as a phase change material for thermal energy storage systems." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Dec/09Dec%5FRyglowski.pdf.

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Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, December 2009.<br>Thesis Advisor(s): Kwon, Young ; Pollak, Randall. "December 2009." Description based on title screen as viewed on February 1, 2010. Author(s) subject terms: Carbon Nanotube, Thermal Energy Storage Systems, Characterization of Nanofluids, Static Phase Change Materials, Heat Transfer Nanofluid Systems. Includes bibliographical references (p. 73-77). Also available in print.

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Elsanusi, Omer. "THERMAL ENERGY STORAGE WITH MULTIPLE FAMILIES OF PHASE CHANGE MATERIALS (PCM)." OpenSIUC, 2020. https://opensiuc.lib.siu.edu/dissertations/1852.

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The world is facing a major challenge when it comes to proper energy utilization. The increasing energy demand, the depleting fossil fuel resources and the growing environmental and ecological concerns are factors that drive the need for creative solutions. Renewable energy resources such as solar sit in the center of these solutions. Due to their intermittent nature, development of energy storage systems is crucial. This dissertation focused on the latent thermal energy storage systems that incorporate phase change materials (PCM). The main goal was to enhance the heat transfer rates in these

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Nath, Rupa. "Encapsulation of High Temperature Phase Change Materials for Thermal Energy Storage." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4180.

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Thermal energy storage is a major contributor to bridge the gap between energy demand (consumption) and energy production (supply) by concentrating solar power. The utilization of high latent heat storage capability of phase change materials is one of the keys to an efficient way to store thermal energy. However, some of the limitations of the existing technology are the high volumetric expansion and low thermal conductivity of phase change materials (PCMs), low energy density, low operation temperatures and high cost. The present work deals with encapsulated PCM system, which operates at temp

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Alam, Tanvir E. "Experimental Investigation of Encapsulated Phase Change Materials for Thermal Energy Storage." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5632.

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Thermal energy storage (TES) is one of the most attractive and cost effective solutions to the intermittent generation systems like solar, wind and other renewable sources, compared to alternatives. It creates a bridge between the power supply and demand during peak hours or at times of emergency to ensure the continuous supply of energy. Among all the TES systems, latent heat thermal energy storage (LHTES) draws lots of interests as it has high energy density and can store or retrieve energy isothermally. Two major technical challenges associated with the LHTES are low thermal conductivity of

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Johansson, Elin, and Filip Norrman. "Life cycle analysis on phase change materials for thermal energy storage." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264526.

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Sustainable energy sources and utilization is a large area of interest and the developments are moving fast. Recently, thermal energy storage in the form of phase change materials other than water have caught more interest and a need of analysis for the entire life cycle of the materials have appeared. Previous work in the area shows that health and safety aspects of the products’ life cycle have been neglected and comparisons between different phase change materials other than water are sparsely researched. The objectives for this report are to compare three different phase change material in

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Kulkarni, Rituja. "Parametric Study of a Thermal Energy Storage Module Coupled with a Heat Exchanger." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627666160707063.

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Solgi, Ebrahim. "Experimental and numerical investigations of phase change material and night ventilation characteristics in buildings." Thesis, Griffith University, 2019. http://hdl.handle.net/10072/389083.

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As a key consumer of energy, and producer of greenhouse gas emissions, the building industry can play a pivotal role in reducing the global energy and carbon footprint. Thus, the application of passive techniques in buildings has gained particular attention. These techniques, with minimal auxiliary energy load, can mediate between the external climate and comfortable indoor conditions, while providing an aesthetically pleasing indoor environment. Thermal energy storage is considered an essential component when using passive techniques. The primary aim of energy storage incorporated into buildi

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Gunasekara, Saman Nimali. "Phase Equilibrium-aided Design of Phase Change Materials from Blends : For Thermal Energy Storage." Doctoral thesis, KTH, Kraft- och värmeteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-212440.

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Climate change is no longer imminent but eminent. To combat climate change, effective, efficient and smart energy use is imperative. Thermal energy storage (TES) with phase change materials (PCMs) is one attractive choice to realize this. Besides suitable phase change temperatures and enthalpies, the PCMs should also be robust, non-toxic, environmental-friendly and cost-effective. Cost-effective PCMs can be realized in bulk blends. Blends however do not have robust phase change unless chosen articulately. This thesis links bulk blends and robust, cost-effective PCMs via the systematic design o

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Cot, Gores Jaume. "Recycling of Wastes and Thermal Energy Storage, Two Different Ways to Improve Our Environment." Doctoral thesis, Universitat de Lleida, 2012. http://hdl.handle.net/10803/81419.

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Aquesta tesi és una contribució a generar una economia eficient en recursos i energia per mitjà de reccions químiques. En concret, la memòria presenta d’una banda, un procés ràpid i eficaç per a la recuperació de les sals de crom(III) i l'obtenció de biopolimers d'alt valor afegit dels residus cromats procedents de la indústria d’adoberia. El procés de descromació està basat en l'oxidació del crom(III) a crom(VI) utilitzant peròxid d’hidrogen en mitjà bàsic. A més, la mateixa reacció d'oxidació es va utilitzar per recuperar les sals de crom(IIII) dels efluents cromats. D’altra banda, les reacc

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Garay, Rosas Ludwin. "System Simulation of Thermal Energy Storage involved Energy Transfer model in Utilizing Waste heat in District Heating system Application." Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-161726.

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Nowadays continuous increase of energy consumption increases the importance of replacing fossil fuels with renewable energy sources so the CO2 emissions can be reduced. To use the energy in a more efficient way is also favorable for this purpose. Thermal Energy Storage (TES) is a technology that can make use of waste heat, which means that it can help energy systems to reduce the CO2 emissions and improve the overall efficiency. In this technology an appropriate material is chosen to store the thermal energy so it can be stored for later use. The energy can be stored as sensible heat and laten

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Minic, Ivica D. "An experimental study of a water-source heat pump couple to phase change material thermal energy storage." Thesis, Ulster University, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.694655.

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From the point of economic, environmental and social view our current trends in energy supply and use are unsustainable. Our current energy and climate direction must be changed. Renewable technologies will play crucial role in this change. In order to address these challenges International energy agency (lEA) is developing number of roadmaps for different technologies that can have effects in C02 reduction. There are also roadmaps for renewable technologies. One of them is: "Roadmap for Energy Efficient Heating and Cooling" according to which 20% of increasing Coefficient of Performance (COP)

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Galione, Klot Pedro Andrés. "Numerical simulations of thermal storage systems : emphasis on latent energy storage using phase change materials (PCM)." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/284907.

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The present thesis aims at studying the use of phase change materials (PCM) in thermal energy storage (TES) applications and to develop and implement numerical tools for their evaluation. Numerical analysis is nowadays an indispensable tool for the design, evaluation and optimization of thermal equipment, complementing the experimental techniques. Two levels of analysis are carried out, one in the field of Computational Fluid Dynamics, allowing the accurate simulation of the complex heat transfer and fluid dynamics phenomena present in solid-liquid phase change problems; and another one in wh

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Caliguri, Ryan P. "Comparison of Sensible Water Cooling, Ice building, and Phase Change Material in Thermal Energy Storage Tank Charging: Analytical Models and Experimental Data." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627666292483648.

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Augood, P. C. "Low-Temperature Thermal-Energy Storage and Transmission Systems Employing Hydrophilic Polymeric Materials." Thesis, Cranfield University, 1997. http://hdl.handle.net/1826/4517.

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The wide fluctuations that occur in the aggregate electrical demand of a generating utility are punitive with respect to total system efficiency. Demand side management techniques have been applied to reduce such fluctuations including the conversion of electrical energy to thermal energy during periods of low demand for use during peak demand periods. For thermal processes requiring energy above ambient temperature it is feasible to use sensible heat due to the existence of stable storage mediums and efficient methods of heating at the high temperatures required. However where energy is requi

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Viry, Cédric. "Silica micro-encapsulation of organic phase-change materials for thermal energy storage." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122084.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis: S.M., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2019<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 99-107).<br>Renewable energy production and storage are our main levers to fight climate change. As the battery industry struggles to manufacture cheap, cyclable and safe systems, thermal energy storage recently became a more active area o

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Maaza, Malik. "Latent and thermal energy storage enhancement of silver nanowires-nitrate molten salt for concentrated solar power." University of Western Cape, 2020. http://hdl.handle.net/11394/8038.

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>Magister Scientiae - MSc<br>Phase change material (PCM) through latent heat of molten salt, is a convincing way for thermal energy storage in CSP applications due to its high volume density. Molten salt, with (60% NaNO3 and 40% KNO3) has been used extensively for energy storage however; the low thermal conductivity and specific heat have limited its large implementation in solar applications. For that, molten salt with the additive of silver nanowires (AgNWs) was synthesized and characterized. This research project aims to investigate the thermophysical properties enhancement of nanosalt (Mix

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Roccamena, Letizia. "Optimization of an innovative thermal energy storage technology at low temperatures when coupled to multi-source energy architectures." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSET010/document.

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A ce jour, les solutions de stockage d'énergie apparaissent comme des solutions pertinentes permettant d'atteindre les cibles énergétiques futures et de répondre aux exigences environnementales actuelles. Le but de cette thèse est d’optimiser un système de stockage d'énergie thermique innovant basé sur un échangeur eau – matériaux à changement de phase. Ce système est couplé à l’architecture énergétique multi-sources d’un îlot composé de trois bâtiments à énergie positive situé à Lyon : l’îlot HIKARI. Afin de disposer d’un outil numérique robuste pour pouvoir optimiser cette technologie, un mo

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Campbell, Kevin Ryan. "Phase Change Materials as a Thermal Storage Device for Passive Houses." PDXScholar, 2011. http://pdxscholar.library.pdx.edu/open_access_etds/201.

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This study describes a simulation-based approach for informing the incorporation of Phase Change Materials (PCMs) in buildings designed to the "Passive House" standard. PCMs provide a minimally invasive method of adding thermal mass to a building, thus mitigating overheating events. Phase change transition temperature, quantity, and location of PCM were all considered while incrementally adding PCM to Passive House simulation models in multiple climate zones across the United States. Whole building energy simulations were performed using EnergyPlus from the US Department of Energy. A prototypi

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Saffari, Tabalvandani Mohammad. "Simulation-based optimization of thermal energy storage (TES) materials for building and industry applications." Doctoral thesis, Universitat de Lleida, 2017. http://hdl.handle.net/10803/459304.

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Una quantitat substancial d'energia s'utilitza en els sectors de l'edificació i de la indústria per als propòsits de la calefacció i de la refrigeració. Els materials d'emmagatzematge d'energia tèrmica (TES) poden oferir importants beneficis energètics i econòmics als edificis residencials, comercials i industrials. Els materials de TES tenen el potencial per reduir les demandes de refredament i de l'electricitat màxima en sectors de l'edificació i de la indústria; però, per tal d'implementar adequadament aquesta tecnologia per maximitzar els beneficis econòmics, es necessiten tècniques de si

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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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