STUDY ON THERMO-PHYSICAL PROPERTIES OF HIGH-TEMPERATURE AND HIGH-PRESSURE WET AIR

LU Yang-yang; LIU ChaoCollege of Power Engineering

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STUDY ON THERMO-PHYSICAL PROPERTIES OF HIGH-TEMPERATURE AND HIGH-PRESSURE WET AIR

Thermal Power Generation Vol. 39, Issue 2, Pages: 32-36(2010)

更新时间：2025-09-28

- STUDY ON THERMO-PHYSICAL PROPERTIES OF HIGH-TEMPERATURE AND HIGH-PRESSURE WET AIR
- 作者机构：
  
  重庆大学动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK124
- Published：2010
- 稿件说明：
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LU Yang-yang, LIU ChaoCollege of Power Engineering. STUDY ON THERMO-PHYSICAL PROPERTIES OF HIGH-TEMPERATURE AND HIGH-PRESSURE WET AIR[J]. Thermal Power Generation, 2010, 39(2): 32-36.
DOI：

LU Yang-yang, LIU ChaoCollege of Power Engineering. STUDY ON THERMO-PHYSICAL PROPERTIES OF HIGH-TEMPERATURE AND HIGH-PRESSURE WET AIR[J]. Thermal Power Generation, 2010, 39(2): 32-36. DOI：

摘要

以湿空气透平和压缩空气蓄能系统中的工质——湿空气为研究对象

采用立方型状态方程(PR方程)研究高温高压下湿空气的热物性。针对湿空气中水分为强极性物质

改进了PR方程中引力项参数a

计算了饱和湿空气在5 MPa以内的压缩因子。结果表明

改进方程(MPR方程)与Hyland和Wexler模型有相同的精度;采用MPR方程对湿空气在不同工况下的偏差焓进行了计算

并与PR方程计算结果进行了比较。用MPR方程分析了压力、温度、含湿量对湿空气热物性的影响。

Abstract

Taking the working medium

i.e.wet air

in the wet-air turbine and compressed air energy-accumulating system as the object of study

the thermo-physical properties of wet air under high-temperature and high-pressure have been studied by using the Pen-Robinson equation(PR equation).Directing against the water content in wet air is a strong polarized substance

the parameter a in gravitational term of said PR equation has been modified

and the compress factor of saturated wet air within 5 MPa being calculated.Result shows that the modified PR equation(MPR equation) has same precision as that of the Hyland and Wexler model;by using the MPR equation

the enthalpy deviation of wet air under defferent operating conditions has been calculated

and compared with the result calculated by using PR equation.The influence of pressure

temperature

and water content upon the thermo-phsical properties of wet air has been analysed by using the MPR equation.

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