学术
摘 要:
以文献提供的大量精确P订实验数据为基础，拟合了制冷工质七氟丙烷HFC-227ea的modified benedict—webb-rubin（MBWR）状态方程，给出了32个参数值．该方程适用压力从0．03至53MPa，密度从2．9至1800kg／m^3，温度从204至473K．将该方程计算的HFC-227ea的pVT数据与实验数据比较后表明：两者的气相压力平均绝对值偏差为0．296％，饱和蒸气压平均绝对值偏差为0．213％，液相密度平均绝对值偏差为0．148％．[著者文摘]
文章出处:
《西安交通大学学报》-2007年41卷1期,45 -37-40,45页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
0253-987X（2007）01-0037-04
MBWR Equation of State of HFC-227ea
Wang Yuewu, Hu Peng, Chen Zeshao （Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China）
Abstract:
pVT experimental data of HFC-227ea published in literature were collected, and then modified benedict-webb-rubin （MBWR） equation of state of HFC-227ea was fitted. Moreover, the values of 32 parameters in MBWR equation were obtained. This equation is suitable for conditions of the pressure from 0.03 MPa to 53 MPa, density from 2.9 kg/m^3 to 1 800 kg/m^3, and temperature from 204 K to 473 K. The average absolute deviations of this equation for gaseous phase pressure, vapor pressure and liquid density are 0.296%, 0.213% and 0.148%, respectively.[著者文摘]
Key words:
HFC-227ea; equation of state; refrigerant ; pVT property
基金资助:
国家自然科学基金资助项目（50336020）.
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