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Dissertations / Theses on the topic 'Heat storage devices Testing'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 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

Benne, Kyle S. "Transient performance of closed loop thermosyphons incorporating thermal storage." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.umr.edu/thesis/pdf/Benne_09007dcc803c9096.pdf.

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Thesis (M.S.)--University of Missouri--Rolla, 2007.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed December 3, 2007) Includes bibliographical references.

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3

Piechowski, Miroslaw. "A ground coupled heat pump system with energy storage /." Connect to thesis, 1996. http://eprints.unimelb.edu.au/archive/00000724.

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4

Kota, Krishna M. "Design and experimental study of an integrated vapor chamber thermal energy storage system." Orlando, Fla. : University of Central Florida, 2008. http://purl.fcla.edu/fcla/etd/CFE0002332.

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5

Paulsen, Ronald Ray 1951. "DESIGN AND BUILD OF A STORAGE SYSTEM FOR STRESS TESTING (WORD GENERATOR, SIGNAL SOURCE)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/291237.

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6

Cohen, Donald Kenneth. "Analysis of methods for detecting focus error in optical data storage systems." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184257.

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Theoretical and experimental techniques are developed to study three common approaches to focus error signal generation for optical data storage applications. Specifically, the astigmatic, obstruction knife edge (a.k.a. shaded aperture), and critical angle prism systems are studied. These techniques are then applied to a new focus detection system, based on a lateral shearing interferometer, developed by this author. The sensitivity of a given optical system to the primary design point, alignment errors, aberrations and optical recording medium topology are presented. A new approach to constru

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7

Malan, Daniel Johannes. "Latent heat thermal energy storage for solar water heating using flat heat pipes and aluminum fins as heat transfer enhancers." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96140.

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Thesis (MEng) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Solar energy is a time dependent, high-temperature radiant energy resource. The utility of a solar thermal energy system increases if the hot temperature source is available when it is needed most. This is realized by the thermal storage of the solar energy. Thermal storage gives greater versatility to a solar energy system by decoupling the heat source from the heat sink. A large quantity of energy may be stored during the melting process in a phase change material (PCM) within a small temperature range. This molten PC

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8

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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9

Hüttermann, Lars [Verfasser], Roland [Gutachter] Span, and Viktor [Gutachter] Scherer. "Thermodynamic analysis of liquid air energy storage systems and associated heat storage devices / Lars Hüttermann ; Gutachter: Roland Span, Viktor Scherer ; Fakultät für Maschinenbau." Bochum : Ruhr-Universität Bochum, 2019. http://d-nb.info/1177364417/34.

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10

Gambetta, Giulio. "Development, Optimization and Testing of High Performance Cooling Systems for Fusion Devices." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3421938.

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One of the fundamental components for the full scientific exploitation of future fusion experiments is the Neutral Beam Injectors (NBI). Such devices shall operate in ITER and DEMO experiments at particle energy levels, heating power and steady state working conditions that have never been simultaneously reached before in other experimental facilities. In addition to the challenging technological and manufacturing aspects, NBIs coupled with future fusion reactors should be characterized by much demanding efficiency, availability and reliability factors, composing and additional set of critica

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11

Augspurger, Michael. "Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6048.

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The high energy density and stable temperature fields of latent heat thermal storage devices (LHTSD) make them promising in a range of applications, including solar energy storage, solar cooking, home heating and cooling, and thermal buffering. The chief engineering challenge in building an effective LHTSD is to find a way to complement the storage capabilities provided by the low-conductivity phase-change material with a suitable enhanced heat transfer mechanism. The principal aim of this project is to develop a tool to improve the design of a small-scale LHTSD, such as one that might be used

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12

Ikkawi, Rabee Muhieddine. "Heat assisted magnetic recording for areal densities beyond 1 Tbit/in²." Diss., [Riverside, Calif.] : University of California, Riverside, 2008. http://proquest.umi.com/pqdweb?index=0&did=1663077891&SrchMode=2&sid=1&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1268246782&clientId=48051.

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Thesis (Ph. D.)--University of California, Riverside, 2008.<br>Includes abstract. Available via ProQuest Digital Dissertations. Title from first page of PDF file (viewed March 10, 2010). Includes bibliographical references (p. 126-135). Also issued in print.

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13

White, Jason Franklin Suppes Galen J. "Flammability characterization of fat and oil derived phase change materials." Diss., Columbia, Mo. : University of Missouri--Columbia, 2005. http://hdl.handle.net/10355/6252.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on February 12, 2010). Thesis advisor: Dr. Galen J. Suppes. Includes bibliographical references.

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14

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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15

Benjamin, Valencia. "Experiences of professional nurses with regard to accessing information at the point-of-care via mobile-computing devices at a public hospital." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020193.

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Mobile computing devices are capable of changing how healthcare is delivered in the future, since they aim to merge and integrate all services into one device that is versatile, customisable, and portable. The aim of this study was to explore and describe the experiences of professional nurses with regard to accessing information at the point-of-care of the patient, in order to develop guidelines that could assist other professional nurses with implementing the mobile computing device for accessing information at the point-of-care of patients. To achieve the purpose of the study, a qualitative

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16

Nel, Rick Guillaume. "Discrete element modelling of packed rock beds for thermal storage applications." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80147.

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Thesis (MScEng)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The increased necessity to obtain power from other sources than conventional fossil fuels has led to the growing interest in solar power. The problem with the proposed technology is that it can only provide power during the day and therefore requires some sort of storage system, if power is to be supplied throughout the day and night. A number of storage systems exist, but the one of particular interest for this research, is packed rock beds. Rock beds have the advantage that if designed right, they have the potential t

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17

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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18

Ornek, Cem. "Performance characterisation of duplex stainless steel in nuclear waste storage environment." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/performance-characterisation-of-duplex-stainless-steel-in-nuclear-waste-storage-environment(4db73e9b-c87c-40a6-9778-0b823b1c499f).html.

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The majority of UK’s intermediate level radioactive waste is currently stored in 316L and 304L austenitic stainless steel containers in interim storage facilities for permanent disposal until a geological disposal facility has become available. The structural integrity of stainless steel canisters is required to persevere against environmental degradation for up to 500 years to assure a safe storage and disposal scheme. Hitherto existing severe localised corrosion observances on real waste storage containers after 10 years of exposure to an ambient atmosphere in an in-land warehouse in Culham

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19

Hernandez, Ambato Jorge Luis, Pietro Pantano, Calogero Pace, and Letizia Fragomeni. "New methodologies and instrumentations for power semiconductor devices testing." Thesis, 2016. http://hdl.handle.net/10955/1416.

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Scuola di dottorato"Archimede" in Scienze, Comunicazione e Tecnologie. Scienze e Tecnologie dei Sistemi Complessi, Ciclo XXVII, a.a. 2015-2016<br>Nowadays electronic applications involve a high density of power Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) which represent the major percentage of energy flow to be controlled. Moreover, new technologies, such as Silicon Carbide (SiC), have been well involved in the existing power applications. Therefore, the reliability of power devices is highly demanded. Since decades, a widely used accelerated test to evaluate the reliabil

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20

Maluleke, Archibald. "Optimal control versus conventional control strategies for ice-based thermal storage." Thesis, 2012. http://hdl.handle.net/10210/7304.

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M.Ing.<br>Ice storage systems are used to store thermal energy in the form of ice build-up inside storage tanks. During off peak hours, the chiller is used to charge up the storage tank until it is full. During on peak hours, the storage is discharged to meet a certain fraction of the building cooling load. The control strategy employed determines the extent to which the storage compensates the chiller and visa versa. Given the way in which electricity rates are structured, ice storage systems become an effective energy management strategy. The objective of the study is to compare energy savin

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21

Chen, Hsing-Yi, and 陳幸宜. "Evaluating the performance of freezing system after being attached with ice storage and heat recovery devices." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/58ws6j.

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碩士<br>國立臺北科技大學<br>能源與冷凍空調工程系碩士班<br>100<br>The study proposes to develop a compound freezing system, through which the study evaluates its performance after being attached with freezing, ice storage and heat recovery devices, and then applied to hypermarkets. Experiments are made to analyze cost-saving effect of the system during peak and off-peak hours. During the night, the freezing system with low load stores ice to supply for the need of refrigeration in the office in the daytime. As a result, the existing equipment is able to be applied more efficiently, and the office area can save the el

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22

Sulaiman, Abdulsalam S. A. "Development of thermal energy storage and cooker module for the integrated solar energy project." Thesis, 2008. http://hdl.handle.net/10413/10366.

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Large percentages of the South African population have no access to grid power and are located at distances that make provision for such facility uneconomical. Also traditional fuels are under pressure. Most areas in South Africa receive 300 days of sunshine per year. The proposed solar system addresses the needs of such communities. A solar thermal energy storage system utilizing phase change material has been proposed that can overcome the time mismatch between solar availability and demand. The system consists of two types of thermal heat storage. The latent heat storage used Phase Change M

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23

PALOMBA, VALERIA. "Thermal energy storage systems for low-grade heat applications: Design and experimental testing of lab-scale prototypes." Doctoral thesis, 2017. http://hdl.handle.net/11570/3116364.

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The main objective of this thesis is the development of prototypes of thermal energy storages suitable for coupling with low-grade waste heat (e.g. non-concentrating solar, industrial process heat) and their experimental testing. Benefits of thermal energy storages are several, but the experience in non-sensible heat storage is still limited, especially in the design of prototypes. High temperature heat storage (T >150°C) has been the subject of a quite extensive research, but low-grade heat sources are still not fully exploited, due to the competition with water, that is available at a

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24

Schmidt, Dennis Patrick. "Design and testing of a modular hydride hydrogen storage system for mobile vehicles." 1985. http://hdl.handle.net/2097/27531.

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25

Wen, Chao Lee. "A new chemical synthesis for vanadium sulfide as high performance cathode." Thesis, 2014. http://hdl.handle.net/1805/5500.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Since 1990s, rechargeable Li-ion batteries have been widely used in consumer electronics such as cell phones, global positioning systems (GPS), personnel digital assistants (PDA), digital cameras, and laptop computers. Recently Li-ion batteries received considerable attention as a major power source for electric vehicles. However, significant technical challenges still exist for widely deploying Li-ion batteries in electric vehicles. For instance, the energy density of Li-ion batteries is not high enough to support a long-distance co

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