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 48 for “"solar heat"”.
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Dynamic Materials and Devices for Controlling Solar Heat Gain in Buildings
… efficient, adaptive technologies. More efficient heating and cooling of both commercial and residential buildings is a strong candidate for such advancements. Indeed, a significant portion of the annual US energy budget is devoted to the heating, ventilation, and air conditioning (HVAC) of …
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The potential for solar heat in the Cape food and beverage industry
This report investigates whether or not current solar water heating technology has the potential to supplement conventional energy use within the Western Cape food and beverage industry. In order to achieve this, two things need to be investigated, namely, the potential for such technology in terms …
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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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Solar Colletors Combined with Ground-Source Heat Pumps in Dwellings - Analyses of System Performance
The use of ground-source heat pumps for heating buildings and domestic hot water in dwellings is increasing rapidly in Sweden. The heat pump extracts heat from the ground by a U-pipe in a vertical borehole. In order to reduce the electricity demand in the system, the combination with solar …
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Characterizing Water as Gap Fill for Double Glazing Units
… also allow significant unwanted direct solar heat gain caused by infrared light. Conversely, glazing systems that are designed to reflect unwanted direct solar heat gain significantly reduce the transmittance of visible light through windows. The goal of this research was to characterize …
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Techno-economic feasibility of a solar assisted coal power plant
The use of solar heat in conventional coal-fired power plants has been demonstrated to reduce the coal consumption of the plant. A reduction in the amount of coal that is burnt by the power plant, means that less greenhouse gases are emitted by the power plant. Hence, the plant has a smaller impact …
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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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Simulation of Airflow and Heat Transfer in Buildings
… existing buildings designed for energy efficient heating and cooling. The first is the Viipuri Municipal Library (Russia) and the second is the Margaret Esherick House (PA). The commercial code FLUENT is used to perform simulations to study the effect of varying atmospheric conditions and …
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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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Design and prototype of a partial window replacement to improve the energy efficiency of 90-year-old MIT buildings
… levels. The single panes of glass allow too much heat transfer and solar heat gain. In addition, the steel framework has warped due to oxidation and decay of the glazing compound, resulting in air and water infiltration. This thesis explored a feasible solution of a partial window replacement that …
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Energy use in multi-family dwellings : measurements and methods of analysis
… no more than 105 kWh/m² annually including space heating, domestic hot water heating, common electricity and household electricity. Different building techniques and technical systems were used at the different properties. A measurement program including hourly measurements of district heating, …
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Investigation of physical and electro-optic diffractive structures for energy-efficient smart window applications
The cost of energy used for lighting, heating, and cooling in commercial and residential buildings is increasing annually while wasteful losses and gains through inefficient windows can be avoidable with advanced technology. Energy-efficient smart windows in commercial and residential buildings can …
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Sol-Clad-Siding and Trans-Lucent-Insulation : curtain wall components for conserving dwelling heat by passive-solar means
A prototype for a dwelling heat loss compensator is introduced in this thesis, along with its measured thermal performance and suggestions for its future development. As a heat loss compensator, the Sol-Clad-Siding collects, stores, and releases solar heat at room temperatures thereby maintaining a …
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The effects of building envelope parameters on energy performance for high-rise buildings in central Saudi Arabia
… use air conditioning extensively to overcome the heat and achieve thermal comfort. This research analyzed building envelope variables in an existing building in Riyadh, Saudi Arabia, and measured the effect on energy consumption and cooling loads based on ASHRAE 90.1-2019 and LEED guidelines. The …
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LOAD FACTOR EFFECTS ON THERMALLY STRATIFIED SC! AR STORAGE TANKS
… conditions, as well as matching large loads with solar heat availability, should achieve annual savings of about 1.69 GJ (469 kWh) or more, when compared to a more conventional operating regime. Two computer models of stratification were compared and their predictions showed a fairly good …
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A global strategy for the deployment of humidification-dehumidification technology
… low generating capacities, and it uses abundant solar heat instead of often unavailable electrical sources. Furthermore, the detailed market analysis in this paper shows that there are clearly markets which are ripe for HDH adoption, specifically the district of South 24 Parganas in West Bengal. …
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A methodology for the evaluation of thermal performance of windows based upon life-cycle cost
… necessary to perform life-cycle analyses of the solar heat gain through building windows as a function of the ability of the glazing to allow the penetration and utilization within the interior built environment of available sensible radiation from the natural environment. The life-cycle cost …
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Time-varied daylighting performance to enable a goal-driven design process
… environmental variables like weather and solar angle, but non-spatial quantities related to solar heat gain can be compared on the same terms with spatial quantities like illuminance. This thesis demonstrates methods for quickly calculating annual data sets for which temporal maps are the …
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Evaluation of the potential impact of electrochromic windows on the energy performance of commercial buildings
… performance as they provide greater control of solar gains; they have a potentially significant impact on the indoor visual environment and energy requirements of commercial buildings. The research work presented in this thesis, which is accomplished using computer simulation, proposes to …
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