Prediciton of nucleate pool boiling heat transfer coefficients of refrigerant-oil mixtures

Journal Article · Wed Feb 01 00:00:00 EST 1984 · J. Heat Transfer; (United States)

DOI:https://doi.org/10.1115/1.3246632· OSTI ID:6752037

Jensen, M K; Jackson, D L

This paper describes an experimental investigation to determine the mechanism governing nucleate pool boiling heat transfer in refrigerant-oil mixtures, the role diffusion plays in this process, and the influence of the fluid mixture properties. Boiling heat transfer date were taken in mixtures of up to 10 per cent oil by weight in R-113. Thermophysical properties of the mixtures (density, viscosity, surface, tension, specific heat, and contact angle) were measured. The decrease in heat transfer coefficient with incresing oil concentration is attributed to diffusion in an oil-enriched region surrounding the growing vapor bubbles. A correlation based on a postulated mechanism is presented which shows fair agreement with the experimental data from this study and with data obtained from the literature.

• Research Organization: Department of Mechanical Engineering, University of Wisconsin-Wilwaukee, Milwaukee, Wisconsin 53201
• OSTI ID: 6752037
• Journal Information: J. Heat Transfer; (United States), Vol. 106:1
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
MIXTURES
NUCLEATE BOILING
POOL BOILING
HEAT TRANSFER
OILS
REFRIGERANTS
BUBBLES
CORRELATIONS
DENSITY
DIFFUSION
SPECIFIC HEAT
SURFACE TENSION
VISCOSITY
BOILING
DISPERSIONS
ENERGY TRANSFER
FLUIDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
WORKING FLUIDS
420400* - Engineering- Heat Transfer & Fluid Flow