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 20 of 150 for “"solar thermal"”.
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Development of a volumetric solar thermal absorber
Thermal collectors are the central part of a solar energy system. Within the collector, the absorber is the most essential component and contributes about 46% to the total costs of a collector. These absorbers are typically based on the sheet-pipe design. Hence, further improvements of the absorber …
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Preliminary Investigation into Solar Thermal Combi-system Performance
Solar thermal combi-systems use solar energy to provide thermal energy for space heating and domestic hot water. These systems come in many different designs and configurations, and their performance is dependent on many different factors such as location, solar collector type and orientation, and …
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Institutionalizing solar thermal technologies in the homebuilding industry
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1980.
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Application of Chemical Looping for Solar Thermal Energy Storage
In the recent years, Thermal Energy Storage (TES) systems have received significant attention because they can offer a low-cost Concentrating Solar Power (CSP) plant. Moreover, TES systems increase the economic viability of CSP plant for dispatchable power production over other renewable energy …
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Modeling of solar thermal selective surfaces and thermoelectric generators
… a thermoelectric generator is inserted between a solar-absorbing surface and a heat sink, a solar thermoelectric generator is created which converts sunlight into electrical power. This thesis describes the design and optimization of solar thermoelectric generators, with a focus on systems with …
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Spectral engineering for solar-thermal and thermal-radiative systems
… we focus on strategies to harvest and control solar and thermal radiation, with the goals (1) to improve power generation efficiency using solar and thermal photovoltaics and (2) to reduce the energy consumption used to maintain human comfort in built environments. Solar radiation, as one of …
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Modeling the solar thermal receiver for the CSPonD Project
… objective was to create an accurate steady state thermal model of a molten salt receiver prototype with a horizontal divider plate in the molten salt for Concentrated Solar Power on Demand (CSPonD). The purpose of the divider plate is to separate the heated salt on the top from the colder salt on …
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Solar-thermal hybridization of Advanced Zero Emissions Power Plants
… warming. Alternative energy resources, such as solar radiation, may help abate emissions but suffer from high costs of power production and temporal variations. On the other hand, Carbon Capture and Sequestration allows the continued use of fossil fuels without the CO2 emissions but it comes at …
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Low-Concentrating, Stationary Solar Thermal Collectors for Process Heat Generation
The annual gain of stationary solar thermal collectors can be increased by non-focusing reflectors. Such concentrators make use of diffuse irradiance. A collector’s incidence angle modifier for diffuse (diffuse-IAM) accounts for this utilization. The diffuse irra-diance varies over the collector …
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Optimal operation and design of solar-thermal energy storage systems
… focuses on the optimal operation and design of solar-thermal energy storage systems. First, optimization of time-variable operation to maximize revenue through selling and purchasing electricity to/from the grid is presented for a thermal energy storage system. Time-variable electricity prices …
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Radiative transport in transparent aerogels for solar thermal energy applications
Solar-thermal energy conversion systems hold great promise to meet our diverse energy demand by a renewable source. Converting sunlight into thermal energy requires solar radiation to be absorbed and transformed into heat effectively while minimizing system thermal loss to the ambient environment. …
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Tuning energy transport in solar thermal systems using nanostructured materials
Solar thermal energy conversion can harness the entire solar spectrum and theoretically achieve very high efficiencies while interfacing with thermal storage or back-up systems for dispatchable power generation. Nanostructured materials allow us to tune the spectral properties and heat transfer …
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Where solar thermal meets photovoltaic for high-efficiency power conversion
… of existing technologies that limit performance. Solar thermal and solar photovoltaic schemes dominate today's solar market but both bring intrinsic and practical constraints. What will tomorrow's solar market look like? Third generation solar power generation techniques to utilize a larger …
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Improving solar thermal receiver performance via spectral and directional selectivity
… climate change. Among renewable energy sources, solar energy conversion systems are particularly promising due to the abundance of solar energy reaching Earth. Despite its abundance, the solar resource is dilute, so solar energy must be collected efficiently in order for it to meet an appreciable …
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Determining Optical Basicity of Molten Chloride Salts for Solar Thermal Applications
… relevant materials is imperative. Concentrated solar power (CSP) and thermal energy storage (TES) are valuable technologies that, when coupled, allow for intermittent solar power to be stored as thermal energy in molten salt. Thermal storage allows for energy to be accessed when sunlight is not …
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Solar desiccant evaporative cooling with multivalent use of solar thermal heat
Solar DEC (Desiccant and Evaporative Cooling) air-conditioning is a renewable technological approach to the future air-conditioning of buildings driven with solar-thermal heat. The principal acceptance of solar airconditioning has led to system prototypes mainly across Europe, however the diffusion …
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A Numerical Evaluation of Thermotropic Materials for Polymer Solar Thermal Collectors
… are identified. In the clear state, high solar-weighted transmittance (≥80%, preferably ≥85%). To protect an absorber of polypropylene, material temperature limit of 115 �C, the solar-weighted reflectance of the thermotropic material must be ≥50%. To determine how to achieve these optical …
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Synthesis of integrated solar thermal networks for domestic and industrial utilization
… design and optimization methods for integrating 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 …
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Computational study on controlling the optical properties of solar thermal fuels
Solar thermal fuels utilize molecules that undergo reversible photo-isomerization to convert solar energy into stored thermal energy.¹ Because solar thermal fuels produce no emissions and can store and convert energy within one material, they are an attractive option for a renewable energy source. …
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Modeling and analysis of hybrid geothermal-solar thermal energy conversion systems
Innovative solar-geothermal hybrid energy conversion systems were developed for low enthalpy geothermal resources augmented with solar energy. The goal is to find cost-effective hybrid power cycles that take advantage of the potential synergies of solar thermal and geothermal resources. One aspect …
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