New thermodynamic property models for low-GWP refrigerant mixtures containing R32 as a main constituent

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560243
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Kyushu Sangyo University
• Principal Investigator: AKASAKA RYO 九州産業大学, 工学部, 教授 (60369121)
• Co-Investigator(Kenkyū-buntansha): KAYUKAWA Yohei 独立行政法人産業技術総合研究所, 計測標準研究部門, 研究員 (50371034)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 熱物性 / 状態方程式 / 混合冷媒 / 気液平衡 / 密度 / 臨界定数 / 熱物性データベース

Outline of Final Research Achievements

This work applied a multi-fluid approximation to low-GWP refrigerant mixtures such as R32/1234yf and R32/1234ze(E) mixtures, and successfully developed new mixture models for the thermodynamic properties of the mixtures. The models are capable of calculating the vapor-liquid equilibrium, density, heat capacities, and critical parameters of the mixtures within uncertainties comparable to their experimental values. In addition, this work produced several add-in modules for REFPROP for readily calculations using the mixture models.

Free Research Field

熱工学，熱物性