Condensation heat transfer of R134a, R1234ze(E) and R290 on horizontal plain and enhanced titanium tubes

• Published in: International journal of refrigeration Vol. 93; pp. 259 - 268
• Main Authors: Ji, Wen-Tao, Chong, Guo-Hun, Zhao, Chuang-Yao, Zhang, Hu, Tao, Wen-Quan
• Format: Journal Article
• Language: English
• Published: Paris Elsevier Ltd 01.09.2018; Elsevier Science Ltd
• Subjects: Condensation; Decomposition; Electricity; Frigorigène; Heat flux; Heat transfer; Heat transfer coefficients; Mathematical models; Oxidation; Predictions; Refrigerant; Refrigeration; Saturation; Titanium; Transfert de chaleur; Tube; Tubes; Frigorigène; Tube; Transfert de chaleur; Condensation; Refrigerant; Heat transfer

An experimental investigation on the condensation of R134a, R1234ze(E) and R290 outside plain and enhanced titanium tubes was conducted. The saturation temperature in the experiments was 35 °C to 40 °C, and heat flux was in the range of 8–80 kW/m2. Effects of heat flux, refrigerant and saturation te...