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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 20 of 74 for “"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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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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Heat Storage and Transport Processes in the Tropical Atlantic Ocean
<p>Heat storage and transport processes of the tropical Atlantic play an important role in the climate of three continents. The exploration of how the warm water mass maintenance in the equatorial basin depends on various external factors is therefore an important task. This study examines the …
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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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Ground source heat storage and thermo-physical response of soft clay
Ground source heat storage can condition buildings with reduced consumption of fossil fuels, an important issue in modem building design. However, seasonal heat storage can cause soil temperature fluctuations and possibly deformation of soft clays. This thesis evaluates the thermo-mechanical …
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Design and performance evaluation of an oil/rock bed heat storage system for solar cooking
… evaluation of a sensible thermal energy storage system that used sunflower oil and rock pebbles as heat storage mediums. The aim was to assess the system's performance based on charge and discharge rates, energy storage capacity, power output, cooking efficiency, and cost-effectiveness. …
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Investigation of three integrated energy systems with desalination, heat storage, thermochemical cycles and heat upgrade
… integrated systems with molten salt heat storage and desalination options where copper-chlorine (Cu-Cl) and magnesium-chlorine (Mg-Cl) thermochemical water-splitting cycles for hydrogen production are used. System 1 integrates the wind, solar and geothermal energies with high …
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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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Exploring the improvement of HTGR economics with heat storage for variable electricity output at base-load operations
… by adjusting the output of the reactor core. Heat storage can serve as a solution to this problem by enabling nuclear power plants to store the thermal output of a reactor and convert it to electricity at more profitable times. This study considers multiple design options for a sensible heat …
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The feasibility of using MgF2 for phase change heat storage in a spacecraft solar thermal power system
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
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CFD analysis of heat storage and recovery from geothermal water exiting the space heating radiator using phase change material
… direct usage application is that of space heating. A significant energy loss is however, bound to occur while using geothermal water for space heating due to fluid exiting the room radiators at a considerable high temperature, especially during peak heat load hours. Heat storage and …
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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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Optimizing adsorbents for heat storage applications : estimation of thermodynamic limits and Monte Carlo simulations of water adsorption in nanopores
… starts out with a review of low temperature heat storage technologies. A reference application of seasonal solar heat storage for space heating is considered. The principles of adsorptive heat storage utilizing reversible water adsorption in microporous solids are discussed. Thermodynamic …
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High efficiency solar air heaters with novel built-in heat storage for use in a humidification-dehumidification desalination cycle
Compared to solar water heaters, solar air heaters have received relatively little investigation and have resulted in few commercial products. However, in the context of a Humidification-Dehumidification (HD) Desalination cycle air heating offers significant performance gains for the cycle. Solar …
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Technical and Economic Feasibility of Crushed Rock with Synthetic Oil Heat Storage Coupled to Light Water Reactors in the United Arab Emirates
… Large-scale addition of solar without storage results in excess capacity and inefficient dispatch during some periods of the year. Adding heat storage to the nuclear power plants was investigated to reduce electricity generation at times of excess solar generation and provide added …
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Exploration of the Endothermic and Exothermic Reactions of Calcium Oxide and Magnesium Oxide and Design of a Vessel for a Thermochemical Heat Storage System
<p>A high temperature Thermal Energy Storage (TES) system has been investigated for use in solar thermal power plants or in vehicles to preheat the engine and/or the cabin in cold weather. The idea is to store surplus thermal energy and then release it on demand to heat a working fluid. The stored …
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The North Atlantic heat budget: an Argo based study
… Argo dataset is used to obtain estimates of the heat storage and heat divergence with<br/>the aim of the assessing the usefulness of the Argo array for investigating the North<br/>Atlantic heat budget. The accuracy of the Argo-based mixed layer heat storage varies<br/>significantly throughout the …
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Development of an asynchronous solar-powered cooker
… prototype was initiated. Lithium nitrate, the heat-storage material, was shown to meet the stated requirements of storing heat at a constant temperature of 258° C for up to six hours. Furthermore, this heat-storage material stored heat at temperatures above the boiling point of water, for up to …
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Synthesis of integrated solar thermal networks for domestic and industrial utilization
… solar thermal with domestic and industrial heat networks over multiple time frames based on discrete time intervals/periods. The study also presents a new simultaneous multi-period modelling and design framework for increasing thermal output of an integrated solar thermal-heat pump system. …
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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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