Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Latent Heat Storage"”.
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Latent heat storage in concrete
The development of improved means of thermal storage is an aspect of energy conservation which has lagged other advances in this field. The intent of the present work is to address this need. To that end, concrete building materials were selected as ideal candidates for improvement in respect to …
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Thermal performance of a room with wall latent heat storage
Thermal storage use in buildings is a promising approach for the improvement of energy efficiency. In this study, the feasibility and benefits of utilization of phase change materials (PCMs) in building envelope components for thermal storage were investigated. The phase change material (PCM) …
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Evaluation of an aluminum latent heat storage system for the fluoride-salt-cooled high-temperature reactor
Latent heat energy storage (LHS) systems offer multiple advantages over sensible heat storage systems in terms of energy density, cost, and cycle efficiency. LHS systems use a phase change medium (PCM) that transfer heat at constant temperature. The use of metallic PCMs allows LHS to be used with …
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Thermal Energy Storage Technologies: Fast Modelling, Realisation and Experimental Characterisation of Innovative Latent Heat Storage Units for System Integration
L'abstract è presente nell'allegato / the abstract is in the attachment
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A domestic solar/heat pump heating system incorporating latent and stratified thermal storage.
Both solar and heat pump heating systems are innovative technologies for sustaining ecological heat generation. They are gaining more and more importance due to the accelerating pace of climate change and the rising cost of limited fossil resources. Against this background, a heating system …
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Nonelectric, standalone heating element for an infant incubator
… is uncommon. Thus, Anya requires a nonelectric heating method. Paraffin wax, a phase change material with high latent heat storage, was selected as the heating element for study. The wax can be melted in boiling water, used to deliver heat to the incubator, then melted again once the material …
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Latent and sensible heat storage in concrete blocks
… were recorded by digital data logger. Heating and cooling cycle were provided by two sets of microcomputer controlled air conditioning systems. Three different heating and cooling temperature ranges were applied on different combinations. The mean air flow velocities were also set …
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Molecular Origins of Phase Stability in Phase-Change Nano-Emulsions for Thermal Energy Storage by NMR Spectroscopy
<p>Phase change materials (PCMs) are latent heat storage materials that can store or release thermal energy during phase transitions. Organic PCM nano-emulsions are formed by emulsifying oil in water in the presence of surfactants, enhancing thermal conductivity and pumpability. However, PCMs …
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Formulation & Thermophysical Analysis of a Beeswax Microemulsion & The Experimental Calculation of its Heat Transfer Coefficient
… Materials (PCM) as suitable Thermal Energy Storage (TES) mediums has garnered greater attention in recent decades. PCMs have the ability to not only store Sensible Heat (SH) within a given temperature range, but also store large amounts of Latent Heat (LH) as they undergo a phase change, …
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Investigation of energy storage options for thermal management in hybrid electric vehicles
… Higher power density lead to extra heat generation and thermal runaway in the Li-ion cells. Therefore, a successful thermal management system is required to prevent temperature increase and non-uninform distribution in the battery pack. In the current study, integration of a phase …
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Investigations on Latent Thermal Energy Storage for Concentrating Solar Power
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 …
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Integración de materiales de cambio de fase en placas de yeso reforzadas con fibras de polipropileno aplicación a sistemas de refrigeración y calefacción pasivos para almacenamiento de calor latente en edificios
… en general, y almacenamiento en forma de calor latente –mediante materiales de cambio de fase- en particular. Se han estudiado diferentes posibilidades de integración de materiales de cambio de fase en elementos constructivos, y su interacción con ellos. Se han considerado los más adecuados –de …
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Experimental investigation of U-Pipe evacuated tube solar collector: thermal performance enhancement methodology
… U-Pipe evacuated tube solar collector (ETC) vs heat pipe ETC (HPETC) was investigated experimentally. ETC's are available in either heat pipe or u-pipe configurations. In this work, a custom made U-Pipe ETC design is studied alongside commercially available HPETC setup. The copper U-pipe design …
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Energy recovery at thermodynamic expansion and thermal boosting through convection in flat plate solar thermal systems.
… Solar collectors are utilised to use solar heat to increase the heat energy of thermo-fluids or heat transfer fluid (HTF), which can operate Organic Rankine Cycle (ORC) to generate electricity. However, the extensive gain from solar energy is restricted due to unreliability of solar energy …
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Thermal Energy Storage Aggregate using Low-Cost Organic Phase Change Materials
… CBMs. This study has developed thermal energy storage aggregates (TESA) to cope with the aforementioned problems. TESA is made through vacuum impregnation of expanded clay lightweight aggregate (LWA) with low-cost and widely available organic PCMs such as individual or blends of coconut oil …
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Advancements in Irreversible Electroporation for the Treatment of Cancer
… the pulse parameters are chosen to limit Joule heating, irreversible electroporation can be performed safely on surgically inoperable tumors located next to major blood vessels and nerves. As with all technologies, there is room for improvement. One drawback associated with therapeutic …
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Multiscale Simulation of Thermocline Energy Storage for Concentrating Solar Power
… salt and solid rock filler, offer low-cost storage capability but the concept has experienced limited deployment in CSP plants due to unresolved concerns about long-term thermal and structural stability. The main objective of the present work is to advance the understanding of thermocline …
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Application-oriented development of thermoplastic polyurethanes with shape memory properties
… HS content of 20 wt.% were developed for use in latent heat storage systems for a programmable heat release. A demonstrator showed how the material synergistically interacted with a switchable phase change material (sPCM). The 2W-SME of the TPU was able to induce repeatedly crystallization of the …