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 12 of 12 for “"second-law analysis"”.
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Second law analysis and optimization of humidification-dehumidification desalination cycles
… cycles. This thesis applies irreversibility analysis to characterize HD desalination cycles and to identify how to further improve cycles and components. It is shown that minimizing the specific entropy generation of the cycle maximizes the gained output ratio (GOR). It is also shown that …
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Second law analysis of a natural gas-fired steam boiler and cogeneration plant
A second law thermodynamic analysis of a natural gas-fired steam boiler and cogeneration plant at Rice University was conducted. The analysis included many components of the plant including piping, valves, boilers, turbines, piping specialties and various other pieces of equipment. Typical steady …
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Second law analysis of a waste heat recovery combined power cycle using transcritical carbon dioxide
Common power cycles discard a large portion of useful energy into the environment via exhaust gasses. Through the use of cascade bottoming cycles, this wasted exergy may be utilized for power generation and hot water production. Heat transfer between cycles occurs through a heat exchanger. To …
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Second law analysis of a liquid cooled battery thermal management system for hybrid and electric vehicles
… within the system, as well as a total system analysis. Four main components of the system are the battery module, heat exchanger, pump, and throttle. The battery module coolant tubes and the entire heat exchanger model are developed. Various parameters are changed in each component, leading to …
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Second law analysis of the transient behavior of solid media thermal storage utilizing finite difference computational modeling
… in each slice would be fully mixed. First and Second Law analysis were incorporated as a means of evaluating different configurations of the storage system design.
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Second law analysis and the application of the efficient power criterion to a four-temperature-level absorption chiller
… to derive a finite heat capacity model. Then, a second law analysis along with a thermo-ecological criterion is applied to determine the best compromise between efficiency and cooling load. Systems input parameter variations are an important tool, while determining the efficiency-cooling capacity …
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Second law analysis revisited: a critical look at its past development, a clarification of its terminology, and a demonstration of its use as a design tool through microcomputer programming
The second law is still rarely used as a design decision tool. However, information obtained from second law analysis is valuable in the design process for thermodynamic systems. This investigation reviews the past development of second law analysis. A clear, operational vocabulary is established. …
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On the Influence of Faraday Waves on Transport in Resonant Acoustic Mixing
… phases. In phase 1, a thermodynamic first- and second-law analysis couples the surface features with the scale of subsurface rotational features. Experimental surface measurements showed that for unstable accelerations (i.e., 15 and 20 g), the mean radius of surface curvature decreased, …
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Analysis and optimisation of thermal energy storage
… The packed beds are investigated using second law analysis which reveals trade-offs between several heat transfer processes and the importance of various design parameters. Parametric studies of the reservoir behaviour informs the design process and leads to a set of design guidelines. …
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Performance analysis of gas turbine cogeneration systems.
… systems is analyzed using the first and second laws of thermodynamics. A basic gas turbine cogeneration system and a steam injection gas turbine cogeneration system are investigated. In the analysis the system components, compressor, combustion chamber, turbine and heat recovery steam …
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Thermodynamics-based optimization and control of integrated energy systems
With increasing worldwide demand for energy comes the need to both generate and consume energy more efficiently. Integrated energy systems (IESs) combine power generation technologies, such as internal combustion engines or fuel cells, with other technologies which directly utilize the power …
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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. This …