Correlation;
Flow pattern;
Heat transfer coefficient;
R-1234yf;
2-PHASE FLOW;
GENERAL CORRELATION;
CHANNEL;
R-134A;
MINICHANNELS;
REFRIGERANTS;
R1234YF;
PATTERN;
R-22;
D O I:
10.1007/s12206-014-0944-2
中图分类号:
TH [机械、仪表工业];
学科分类号:
0802 ;
摘要:
We report experimental data of boiling heat transfer of R-1234yf in horizontal small tubes. The experimental data obtained in the horizontal circular small tubes of 1.5 and 3.0 mm inner diameter, the lengths of 1000 and 2000 mm, the mass flux range from 200-650 kg/m(2)s, the heat flux range from 5-40 kW/m(2) and saturation temperature of 10 and 15A degrees C, was used to develop a modified correlation for the heat transfer coefficient. The flow pattern of the experimental data was mapped and analyzed with existing flow pattern maps. The heat transfer coefficient was also compared with some well-known correlations.
机构:
Tokyo Univ Marine Sci & Technol, Koto Ku, 2-1-6 Etchujima, Tokyo 1358533, JapanTokyo Univ Marine Sci & Technol, Koto Ku, 2-1-6 Etchujima, Tokyo 1358533, Japan
Jige, Daisuke
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机构:
Kikuchi, Shogo
Mikajiri, Naoki
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h-index: 0
机构:
Tokyo Univ Marine Sci & Technol, Koto Ku, 2-1-6 Etchujima, Tokyo 1358533, JapanTokyo Univ Marine Sci & Technol, Koto Ku, 2-1-6 Etchujima, Tokyo 1358533, Japan
Mikajiri, Naoki
Inoue, Norihiro
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机构:
Tokyo Univ Marine Sci & Technol, Koto Ku, 2-1-6 Etchujima, Tokyo 1358533, JapanTokyo Univ Marine Sci & Technol, Koto Ku, 2-1-6 Etchujima, Tokyo 1358533, Japan
机构:
Hunan Univ, Coll Civil Engn, Changsha 410082, Peoples R China
Univ Illinois, Air Conditioning & Refrigerat Ctr, Dept Mech Sci & Engn, 1206 West Green St, Urbana, IL 61801 USA
Energy Efficiency Minist Educ, Key Lab Bldg Safety, Changsha, Hunan, Peoples R ChinaHunan Univ, Coll Civil Engn, Changsha 410082, Peoples R China
Li, Houpei
Hrnjak, Pega
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h-index: 0
机构:
Univ Illinois, Air Conditioning & Refrigerat Ctr, Dept Mech Sci & Engn, 1206 West Green St, Urbana, IL 61801 USA
Creat Thermal Solut, 2209 N Willow Rd, Urbana, IL 61802 USAHunan Univ, Coll Civil Engn, Changsha 410082, Peoples R China