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 6 of 6 for “"First law efficiency"”.
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Heat exchanger design for thermoelectric electricity generation from low temperature flue gas streams
… material with a ZT value of 0.8 and second law efficiency of 13%. Complete systems were generated for a number of economic conditions. The best complete system achieved a first law efficiency of 1.62% from a 1500 C flue gas stream at an installed cost of $0.79 per watt.
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Experimental study of reversible AC/HP system for electric vehicles
… electric vehicles (EV), the energy conversion efficiency is much higher, so that there isn't much waste heat available for cabin heating. A general way to provide heat for EV is to use a positive temperature coefficient (PTC) heater to convert electricity stored in the battery directly into …
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Systems-level design of ion transport membrane oxy-combustion power plants
… limitations of the membrane material. A Second Law assessment of certain ITM configurations is performed to evaluate the potential of ITM technology to reduce the air separation penalty and to guide effective systems-level integration. Finally, simulations of various ITM-based zero-emissions …
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Optimization and hybridization of membrane-based oxy-combustion power plants
… with solar energy are proposed and analyzed. First, optimal design and operation of AZEP cycles, both zero and partial emissions, is considered. AZEP consists of a Brayton-like top cycle and a standard triple pressure heat recovery steam generator (HRSG) bottoming cycle, and a CO₂ separation …
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Thermochemical energy storage systems: modelling, analysis and design
… the effects of selected parameters on the efficiency and behavior of thermochemical storage systems.
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A THERMO-ECONOMIC STUDY OF SOLAR COOLING/HOT WATER SYSTEMS
… performance in terms of solar fraction and first law efficiency of the systems, second law analysis was also carried out in this study. Being a cooling machine, the coefficient of performance (COP) may be compared with the ideal reversible machine to identify component irreversibilities. …