热力学上越大越好吗?

Exergy, An International Journal Pub Date : 2002-01-01 DOI:10.1016/S1164-0235(02)00061-4

Yunus A. Çengel , Byard Wood , Ibrahim Dincer

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引用次数: 30

摘要

一般来说，混合是一个不可逆的过程，在这个过程中产生了一些熵，从而消耗了一些能。因此，从热力学角度结合两个处于不同状态的系统可能会产生一个更大的系统，但在能量含量或“有用性”方面要小得多。本文考虑了几种混合过程，并通过考察混合对火能破坏的影响，证明了越大并不一定越好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Is bigger thermodynamically better?

Mixing, in general, is an irreversible process, and some entropy is generated and thus some exergy is destroyed during such a process. Therefore, combining two systems thermodynamically that are at different states may yield a system that is larger in size, but much smaller in exergy content or “usefulness”. In this paper we consider some mixing processes, and show that getting bigger is not necessarily better by examining the effect of mixing on exergy destruction.

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Exergy, An International Journal

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