| 也论“能级平衡” |
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| 引用本文： | 刘桂玉,钱立伦. 也论“能级平衡”[J]. 西安交通大学学报, 1986, 0(4) |
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| 作者姓名： | 刘桂玉 钱立伦 |
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| 作者单位： | 西安交通大学动力机械工程系(刘桂玉)，西安交通大学动力机械工程系(钱立伦) |
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| 摘 要： | 本文论述了遵循热力学第一定律和第二定律的能级平衡(简称第二定律的能级平衡)。它是(火用)分析的发展,与(火用)分析完全一致。当只要了解用能的总情况而不需要各部分(火用)损的详情时,采用能级分析有它简明的优点。进行第二定律的能级平衡时,必须针对固定数量的能量平衡式,由此求得的能级差系数ξ_Ω才是真正衡量系统用能过程合理程度的质量指标。本文通过实例,说明了第二定律能级平衡的正确性。
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| 关 键 词： | 作功能力 |
ON ENERGY GRADE BALANCE |
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| Liu Guiyu,Qian Lilun. ON ENERGY GRADE BALANCE[J]. Journal of Xi'an Jiaotong University, 1986, 0(4) |
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| Authors: | Liu Guiyu Qian Lilun |
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| Affiliation: | Liu Guiyu;Qian Lilun Department of Fower Machinery Engineering |
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| Abstract: | In this paper a method of energy grand balance which obeys the first lawand the seaond law of thermodynamios is described. The method is a direct de-velopment of exergy analysis theory. The method is very simple and convenientwhen it is used to analyse problems for which details of individual exergy lossesare not necessary, and only general information on energy utilization is expected.In the analysis, the conservation equation must be derived for a fixed amountof energy. The energy grade differential coefficient obtained is the quality cri-terion for evaluation of reasonableness of system energy utilization. Several prac-tioal examples are presented in this paper to demonstrate the correctness of themethod. |
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| Keywords: | work capacity |
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