| 利用统计热力学中的微扰理论推算实际气体p、v、T的新方法 |
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| 引用本文： | 宋小明,赵冠春.利用统计热力学中的微扰理论推算实际气体p、v、T的新方法[J].西安交通大学学报,1993(3). |
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| 作者姓名： | 宋小明 赵冠春 |
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| 作者单位： | 西安交通大学动力机械工程系
(宋小明)，西安交通大学动力机械工程系(赵冠春) |
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| 摘 要： | 本文以统计热力学中的微扰理论为基础,建立一种推算实际气体p、v、T的新方法.用这种方法对22种实际气体在靠近饱和线的过热蒸气区进行了压力推算.计算结果表明,对普通气体、氟里昂类气体、烷烃类气体以及氨、水等强极性气体都可适应,平均相对偏差小于0.5%,比通用型Lee-Kesler方程有显著提高.特别对象氨、水这类强极性气体,本文方法具有明显的优越性.
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| 关 键 词： | 微扰理论 流体p、v、T 流体热物性 |
CALCULATION OF p,v,T OF REAL FLUID USING THE PERTURBATION THEORY OF STATISTICAL THERMODYNAMICS |
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| Song Xiaoming Zhao Guanchun.CALCULATION OF p,v,T OF REAL FLUID USING THE PERTURBATION THEORY OF STATISTICAL THERMODYNAMICS[J].Journal of Xi'an Jiaotong University,1993(3). |
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| Authors: | Song Xiaoming Zhao Guanchun |
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| Institution: | Depatrment of Power Machinery Engineering |
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| Abstract: | Based on the perturbation theory, a new method to calculate the p,v,T of real fluid is introduced. By this method, calculations of twenty-two kinds of real fluids in the superheat vapor regions have been conducted. According to the calculated results of 981 points in the superheat vapor regions, the average deviation is 0. 470% compared with the experimental values available in literatures. The accuracy is increased by about 1. 5 times compared with L-K equation. This method has distinct advantages in that it is applicable not only for non-polar fluids but also for strong polar fluids such as water, ammonia. |
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| Keywords: | perturbation theory equation of state thermophysical properties of fluid |
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