Accession Number : ADA320992

Title :   Evaluation of Pool Boiling Heat Transfer Coefficients for the Data of Engelhorn.

Descriptive Note : Technical rept.,

Corporate Author : GRAMBLING STATE UNIV LA

Personal Author(s) : Sharma, Parashu R. ; Lee, Angela ; Harrison, Tameka ; Martin, Ebony ; Neighbors, Krisha

PDF Url : ADA320992

Report Date : APR 1996

Pagination or Media Count : 22

Abstract : Engelhorn has conducted experimental work to determine nucleate pool boiling heat transfer coefficients for a variety of refrigerants at wide pressure and heat flux range. In this work we have compared the experimental data of Engelhorn for refrigerants R-11, R-12, R-13, R-13B1, and R-22 with those calculated from the correlation which is based on two factors which are responsible for the removal of heat from a heat transfer surface in boiling. The first factor represents heat removal by transient heat conduction and the second factor represents latent heat transport removal. The data were compared for pressures ranging from 0.019 bar to 1.51 bar and the heat flux ranging from 100 W/m2 to 102,000 W/m2. The calculations revealed that experimental and predicted heat transfer coefficients compared very well.

Descriptors :   *HEAT TRANSFER COEFFICIENTS, *NUCLEATE BOILING, PRESSURE GRADIENTS, CORRELATION, THERMAL ANALYSIS, LATENT HEAT, THERMAL CONDUCTIVITY, HEAT FLUX, CONDUCTION(HEAT TRANSFER), TWO PHASE FLOW, REFRIGERANTS.

Subject Categories : Thermodynamics
      Air Condition, Heating, Lighting & Ventilating

Distribution Statement : APPROVED FOR PUBLIC RELEASE