Entropy generation extremum and entransy dissipation extremum for heat exchanger optimization
Entropy generation extremum and entransy dissipation extremum for heat exchanger optimization
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DOI：
10.1007/s11434-009-0130-6
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发表时间：
2009-03
影响因子：
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通讯作者：
XiongBin Liu;JiAn Meng;ZengYuan Guo
中科院分区：
文献类型：
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作者：
XiongBin Liu;JiAn Meng;ZengYuan Guo
研究了熵产生和火积耗散的极值原理在换热器优化中的适用性。当换热器仅用于加热和制冷时，火积耗散的极值原理给出了更好的优化结果，而当换热器工作在布雷顿循环时，熵产极值原理则更适合换热器的优化。当换热器中流束的温降较小时，这两种优化原理大致等效。
The applicability of the extremum principles of entropy generation and entransy dissipation is studied for heat exchanger optimization. The extremum principle of entransy dissipation gives better optimization results when heat exchanger is only for the purpose of heating and cooling, while the extremum principle of entropy generation is better for the heat exchanger optimization when it works in the Brayton cycle. The two optimization principles are approximately equivalent when the temperature drops of the streams in a heat exchanger are small.