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 67 for “"Water Heating"”.
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Solar water heating system in libyan buildings
… can be utilized as a form of heat, such as solar water heating, and as electricity, such as solar photovoltaic. Solar water heating systems are commonly referred to in the industry as Solar Domestic Hot Water systems. The challenges (increasing demand for energy, sustainable development, low …
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Simulation of a solar water heating system
A computer simulation model of a domestic solar water heater, using natural circulation, is presented here. Tests were conducted on an experimental system, using a flat plate collector and solar storage tank, auxiliary to an electric geyser. Temperatures were recorded, solar radiation was measured …
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Impact of solar water heating on Eskom's peak demand
Includes abstract. Includes bibliographical references (p. 98-102).
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High resolution time-series modeling of domestic hot water heating systems
This thesis evaluates domestic water heating systems in conjunction with energy saving technologies such as solar water heating, drain water heat recovery, and heat pump water heating. Five dynamic models are developed using Matlab Simulink® with a time-step of one minute. Using minute resolution …
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Design considerations for low pressure solar water heating in South Africa
This thesis investigates the application of solar water heating in South Africa. The solar water heating system investigated work on the thermosiphoning effect or natural convection. An extensive literature study has been undertaken to investigate this phenomena. The three partial differential …
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Development of Solar Sensitive Thin Film for Water Splitting and Water Heating using Solar Concentrator
Photocatalytic water splitting using solar energy could contribute to the solution of environmental and energy issues related to the hydrogen production. Key research area in this field is the development of photo-catalyst able to provide high energy conversion efficiency. TiO2 has been mostly …
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An analysis of the feasibility of using a solar water heating system in a hotel : a case study
The use of solar energy to heat water will not only contribute to the mitigation of global climate change due to the reduced combustion of fossil fuels, but it will also reduce the demand on South Africa's strained electricity supply infrastructure. The hotel industry is particularly energy …
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Flat-Plate Solar Collectors for Water Heating with Improved Heat Transfer for Application in Climatic Conditions of the Mediterranean Region
The aim of this research project is to improve the thermal performance of passive flat plate solar collectors using a novel cost effective enhanced heat transfer technique. The project work focuses on the process of energy conversion from the collector to the working fluid. This is accomplished by …
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Predictive Thermal Modeling and 3E Analysis of Solar Water Heating Systems: Employing A Hybrid Lattice Boltzmann Based Method and Experimental Investigation
… installed capacity for the application in solar water heating (SWH) systems. Several factors including the collectors’ ability to passively track the sun during operation time, significant reduction of heat loss to the ambient due to the vacuum layer between the inner and outer tubes, and low …
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Estimating residential hot water consumption from smart electricity meter data
Despite the fact that residential water heating is among the most energy-intensive aspects of the water sector, domestic hot water use is often poorly quantified. However, water-related energy savings in the residential sector are possible from the implementation of energy-efficient water heaters. …
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Analysis of Energy Savings and Feasibility of Retrofitting New York City Midrise Multifamily Buildings with Air Source Heat Pump Technology
… buildings to replace fossil fuel space and water heating systems with electric powered alternatives. In many cities, especially in the northeast, fossil fuel space and water heating systems are used in a vast majority of buildings and significantly contribute to citywide carbon emissions. In …
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The potential for solar heat in the Cape food and beverage industry
… 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 of …
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Integration of gas instantaneous auxiliaries with renewable energy residential water heaters
Gas instantaneous water heaters are increasingly used as auxiliary energy sources for renewable energy domestic hot water systems. Currently the gas used by these systems is measured and modelled only very approximately. Accurately assessing consumption is important as gas can supply up to 50% of …
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Computer simulation and optimisation of solar heating systems for Cyprus
… into the modelling and simulation of solar water and space heating for Cyprus, and the investigation of the factors concerning the optimisation of such systems. Further a number of design criteria, which can be used by consultants and designers of solar heating systems, have been …
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Supecapacitor-assisted Temperature Modification Apparatus (SCATMA) and Fast Supercapacitor Charger
… of the supercapacitor-assisted "instant" water heating system as well as a new power converter topology to fast charge a supercapacitor bank. Delayed delivery of hot water in domestic water heating systems wastes over 15 million cubic metres of treated water per annum in New Zealand. The …
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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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Influence of environmental conditions and architectural form on the design and thermal performance of the flat-plate solar collector system.
Solar heating systems, by the nature of their design and inherent thermal mass, are sensitive to the changes in the prevailing climatic conditions. A computer program has been developed to predict and display the dynamic performance of solar water heating systems and their installation designs …
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Design and implementation of a 6 kW wind powered water heater controller with PI control
… has been made. Solar energy is widely used for water or space heating while wind is used for pumping water for remote areas. This project looks into the design and development of a 6kW wind powered water heating unit.
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