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《Journal of Xi'an Jiaotong University》 2003-01
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Development of New High Accuracy PVTx Measurement Experimental System

Wu Jiangtao,Liu Zhigang,Huang Haihua,Pan Jiang,Zhao Xiaoming,He Maogang(School of Energy and Power Engineering, Xi′an Jiaotong University, Xi′an 710049, China)  
With the new temperature measurment, pressure measurement and data acquisition tecnology, a new experimental system of PVTx measurement is investigated and developed. The analysis results indicated that temperature uncertainty of new PVTx measurement is below 2 mK, pressure uncertainty is below 08 kPa. In addition, the vapor pressure of HFC152a between 294~353 K is measured with the new experimental system, and the experimantal results indicated that the average deviation between experimental data and the equation provided in the literature is below 0011%, and the standard deviation is below 0037%. It's approved that the new experimental system is reliable.
【Fund】: 国家自然科学基金资助项目(59976030);; 国家重点基础研究发展规划资助项目(2001CB209208).
【CateGory Index】: TH81
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