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 153 for “"Heat recovery"”.
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Waste heat recovery from aluminum production
… consumed in aluminum production is lost as waste heat. Approximately 30-45% of the total waste heat is carried away by the exhaust gas from the smelter which is the most easily accessible waste heat stream. Alcoa Fjardaal in east Iceland produces 350 000 tons annually, emitting the 110 °C exhaust …
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Harnessing thermoacoustics for waste heat recovery
… processes is lost in some form to waste heat. The purpose of this study is to review the waste heat recovery technologies currently available in both commercial and research applications to determine how thermoacoustics may serve a role in furthering the use of waste heat recovery units. …
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Mobile power plants : waste body heat recovery
Novel methods to convert waste metabolic heat into useful and useable amounts of electricity were studied. Thermoelectric, magneto hydrodynamic, and piezo-electric energy conversions at the desired scope were evaluated to understand their role and utility in the efficient conversion of waste body …
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Parametric Study on a Novel Waste Heat Recovery System
… industry-sponsor project involving a novel waste heat-to-electricity conversion system. This proprietary system utilizes thermal energy from a low temperature heat sources to produce torque that drives an electric generator to produce electricity. The system needs to be studied through scientific …
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Waste heat recovery from a high temperature diesel engine
… being rejected to the environment as waste heat through engine coolant and exhaust gases. Attempts have been made to harness this waste heat and use it to drive a Rankine cycle and produce additional work to improve efficiency. Research on waste heat recovery (WHR) demonstrates that it is …
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Low-grade Thermal Energy Harvesting and Waste Heat Recovery
Low-grade heat, either in the form of waste heat or natural heat, represents an extremely promising source of renewable energy. A cost-effective method for recovering the low-grade heat will have a transformative impact on the overall energy scenario. Efficiency of heat engines deteriorates with …
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Crystallization of Synthetic Blast Furnace Slags Pertaining to Heat Recovery
Heat recovery from blast furnace slags is often contradicted by another requirement, to generate amorphous slag for its use in cement production. As both the rate and extent of heat recovery and slag structure are determined by its cooling rate, a relation between the crystallization kinetics and …
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Analysis and design of stirling engines for waste-heat recovery
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981.
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Waste heat recovery in automobile engines : potential solutions and benefits
… car; most of the remaining energy is lost as heat. Since most of the energy consumed by an internal combustion engine is wasted, capturing much of that wasted energy can provide a large increase in energy efficiency. For example, a typical engine producing 100 kilowatts of driveshaft power …
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Waste heat recovery in aluminum plants by means of Stirling engines
Parmi tous les secteurs industriels, celui de la production d’aluminium est l’un des plus importants consommateurs d’énergie : les processus les plus modernes nécessitent une quantité d’énergie électrique comprise entre 11 et 15 MW h par tonne d’aluminium produite. La plus grande partie de cette …
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Domestic graywater heat recovery from the UIUC 2009 solar decathlon house
… study investigates the potential for waste water heat recovery in a residential application. A heat exchanger is utilized to transfer heat from the waste water drain line of a residence to the incoming water supply line. An experiment is conducted on the University of Illinois 2009 Solar Decathlon …
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Feasibility study of heat pumps for waste heat recovery in industry
… to assess the feasibility of implementing the heat pump for waste heat recovery. Through analysis, the focus was narrowed down from a site wide audit, to a departmental breakdown and then eventually to a specific process; the wort boiler. Three different alternatives were investigated and the …
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Leak detection in power plant heat recovery steam generators utilizing medical radionuclides
Gas-fired electrical generating plant is operating increasingly in fast response mode to meet the variability of renewable generation. Fast power turn up and turn down is required to ensure grid frequency stability. Modern gas turbines operating in combined cycle mode can achieve fast response ramp …
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Investigation of heat recovery and combustion characteristics in small scale combustion chambers
… the causes of efficiency decrease due to heat losses from the hot components and proposes a regenerative combustion chamber to improve the thermal exchanges. The combustion chamber has been designed in a way that the cold reactants flow in a helicoidal channel which surrounds the inner …
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Synthesis of molten salt as heat transfer fluid for waste heat recovery application
Basically, various materials such as water, oil heat, ionic liquids and also molten salt are selected to serve as heat transfer fluid. The properties of the different heat transfer fluid determine their performance in any application. The development of nitrate molten salt with different …
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Thermo properties of quaternary molten salt heat transfer fluid for heat recovery system
In the context of the heat recovery system, the application of heat transfer fluid is one of the essential factors that can improve the efficiency of the system. According to the previous research, quaternary molten nitrate salt mixture has been proved to be an excellent heat transfer fluid in the …
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Experimental design, analysis and improvement of a Marnoch Heat Engine with heat recovery.
… research examines the prototyping of a Marnoch Heat Engine (MHE) and conducts thermodynamic and heat transfer analyses of this heat engine with a waste heat recovery system. The heat source for the MHE can be low grade heat (about 365 K). During cold seasons an ambient temperature can be …
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