Results 71 to 80 of about 104 (90)
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Application of entransy theory on structure optimization of serrated fin in plate-fin heat exchanger
Applied Thermal Engineering, 2020Abstract The effects of geometrical parameters of serrated fin in plate-fin heat exchanger (PFHE) on entransy-dissipation-based thermal resistance (EDTR) caused by heat transfer (Rht) and fluid friction (Rff) are investigated by design of experiment(DOE) and response surface methodology (RSM) in this paper.
Ke Li +5 more
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Energy, 2012
Abstract In the present work, a multi-parameter optimization approach of Isopropanol–Acetone–Hydrogen (IAH) chemical heat pump is developed based on the entransy theory. In the optimization process, the total low-temperature heat consumed by the heat pump system generally decreases while the high-temperature heat recovered by the heat pump increases ...
Jiangfeng Guo, Xiulan Huai
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Abstract In the present work, a multi-parameter optimization approach of Isopropanol–Acetone–Hydrogen (IAH) chemical heat pump is developed based on the entransy theory. In the optimization process, the total low-temperature heat consumed by the heat pump system generally decreases while the high-temperature heat recovered by the heat pump increases ...
Jiangfeng Guo, Xiulan Huai
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Energy, 2012
Based on the entransy dissipation theory, the multi-parameter optimization design of recuperator is conducted in an Isopropanol-Acetone-Hydrogen (IAN) chemical heat pump system. The performance of the heat pump system can be improved significantly through the multi-parameter optimization, when the main operation parameters of chemical heat pump remain ...
Jiangfeng Guo, Xiulan Huai
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Based on the entransy dissipation theory, the multi-parameter optimization design of recuperator is conducted in an Isopropanol-Acetone-Hydrogen (IAN) chemical heat pump system. The performance of the heat pump system can be improved significantly through the multi-parameter optimization, when the main operation parameters of chemical heat pump remain ...
Jiangfeng Guo, Xiulan Huai
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Energy, 2013
The vapor-compression refrigeration systems have been one of the essential energy conversion systems for humankind and exhausting huge amounts of energy nowadays. Surrounding the energy efficiency promotion of the systems, there are lots of effectual optimization methods but mainly relied on engineering experience and computer simulations rather than ...
Yun-Chao Xu, Qun Chen
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The vapor-compression refrigeration systems have been one of the essential energy conversion systems for humankind and exhausting huge amounts of energy nowadays. Surrounding the energy efficiency promotion of the systems, there are lots of effectual optimization methods but mainly relied on engineering experience and computer simulations rather than ...
Yun-Chao Xu, Qun Chen
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Enhanced Heat Design of a Multifeature Coupled Microchannel Heat Sink Based on Entransy Theory
Chemical Engineering & TechnologyABSTRACT Multifeature (MF) design is a potential approach for the secondary design of microchannel heat sinks (MHSs). In this paper, turning microchannels with variable cross sections (TM‐VC) were designed. The effects of different coupling methods on the convective heat transfer performance were studied.
Pingnan Huang +4 more
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Entransy Theory for the Analysis and Optimization of Thermal Systems
Proceedings of the 15th International Heat Transfer Conference, 2014Zeng-Yuan Guo, Qun Chen, Xin-Gang Liang
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2018
In this study, the relationship among the concepts of entropy generation rate, entransy theory, and generalized thermal resistance to the optimal design of thermal systems is discussed. The equations of entropy and entransy rates are compared and their implications for optimization of conductive heat transfer are analyzed. The theoretical analyses show
Haratian, Mojtaba +2 more
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In this study, the relationship among the concepts of entropy generation rate, entransy theory, and generalized thermal resistance to the optimal design of thermal systems is discussed. The equations of entropy and entransy rates are compared and their implications for optimization of conductive heat transfer are analyzed. The theoretical analyses show
Haratian, Mojtaba +2 more
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Entransy Theory and Its Application to Heat Transfer Analyses in Porous Media
International Journal of Nonlinear Sciences and Numerical Simulation, 2010Qun Chen, Zeng-Yuan Guo
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