Two-phase pressure drop of refrigerants during flow boiling in small channels : an experimental investigation and correlation development.

Conference · Tue Jan 19 00:00:00 EST 1999

OSTI ID:12396

Chyu, M -C; France, D M; Tran, T N; Wambsganss, M W

Two-phase flow pressure drop measurements were made during a phase-change heat transfer process with three refrigerants (R-134a, R-12, and R-113) at six different pressures ranging from 138 kPa to 856 kPa, and in two sizes of round tubes (2.46 mm and 2.92 mm inside diameters) and one rectangular channel (4.06 x 1.7 mm). State-of-the-art large-tube correlations failed to satisfactorily predict the experimental data. The data were used to develop a new correlation for two-phase pressure drop during flow boiling in small channels. The correlation was then tested against the experimental data for the three refrigerants; the error was {+-}20%.

• Research Organization: Argonne National Lab., IL (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 12396
• Report Number(s): ANL/ET/CP-98230; TRN: AH200120%%325
• Resource Relation: Conference: Conference on Compact Heat Exchangers and Enhancement Technology for the Process Industries, Banff, Alberta (CA), 07/18/1999--07/23/1999; Other Information: PBD: 19 Jan 1999
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BOILING
HEAT EXCHANGERS
HEAT TRANSFER
PRESSURE DROP
REFRIGERANTS
TWO-PHASE FLOW