Two-phase flow pattern map for R170 in a horizontal smooth tube

作     者：Zhuang, Xiaoru Gong, Maoqiong Chen, Gaofei Zou, Xin Shen, Jun 

作者机构：Chinese Acad Sci Tech Inst Phys & Chem State Key Lab Technol Space Cryogen Propellants Beijing 100190 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China 

出 版 物：《INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER》 (国际传热与传质杂志)

年 卷 期：2016年第102卷

页      面：1141-1149页

核心收录：

学科分类：080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：State Key Laboratory of Technologies in Space Cryogenic Propellants [SKLTSCP1406] National Natural Science Foundation of China [51506210, 51322605] 

主　　题：Flow pattern Flow pattern map R170 Horizontal tube Two-phase 

摘      要：An experimental investigation of two-phase flow patterns and their transitions for R170 in a horizontal smooth tube was presented. The tests were conducted at various saturation pressures from 1.5 MPa to 2.5 MPa for different mass fluxes from 100 kg m(-2) s(-1) to 250 kg m(-2) s(-1) over the entire vapor quality range. The effects of mass flux and saturation pressure on two-phase flow pattern transitions were investigated and analyzed. The physical properties of velocity, viscosity and surface tension are important to the flow pattern transition criteria under our experimental conditions. Several two-phase flow pattern maps in horizontal tubes were compared with the experimental data. Finally, a new flow pattern map for R170 in a horizontal tube based on the Kim et al. (2012) map was carried out. (C) 2016 Elsevier Ltd. All rights reserved.