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首页> 外文期刊>Journal of Thermal Science and Technology >Entransy, Entransy Dissipation and Entransy Loss for Analyses of Heat Transfer and Heat-Work Conversion Processes
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Entransy, Entransy Dissipation and Entransy Loss for Analyses of Heat Transfer and Heat-Work Conversion Processes

机译：换热，耗散和换热损失，用于传热和热功转换过程分析

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摘要

Entransy is a parameter proposed in recent years to describe the potential of heat in an object. Its balance equation was established based on the energy equation of heat transfer, which contains entransy, entransy flow, entransy dissipation and entransy production due to heat source. It has been proved that the total entransy must be reduced whenever there is heat transfer in an isolated system, leading to entransy dissipation. Entransy dissipation and entransy-based thermal resistance can be used to optimize heat conduction, heat convection, thermal radiation and the design of heat exchangers and heat exchanger networks. On the other hand, the entransy balance equation was also established for heat-work conversion processes. With the equation, entransy loss, which is the difference between the input and output heat entransy flows, was defined and related to thermodynamic processes. For the discussed thermodynamic cycles, it was found that larger entransy loss leads to larger output work.
机译：熵是近年来提出的用于描述物体中的热势的参数。根据传热的能量方程建立了其平衡方程，该方程包含热源，热流，热耗散和热产生。已经证明，只要隔离系统中存在传热，就必须减少总的运输费用，从而导致运输损失。随身散热和基于随身的热阻可用于优化导热，对流，热辐射以及热交换器和热交换器网络的设计。另一方面，还为热功转换过程建立了运输平衡方程。利用该方程式，定义了热损失，热损失是输入热量和输出热量之间的差，并且与热力学过程有关。对于所讨论的热力学循环，发现更大的传递损失导致更大的输出功。

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