Prediction of pressure drops accompanying the evaporation of refrigerants inside horizontal tubes. Technical memo

Technical Report · Tue Jan 01 00:00:00 EST 1980

OSTI ID:5184713

Stoneham, H G; Saluja, S N; Dunn, A

Four of the more widely used correlations for the prediction of pressure drops were compared with published experimental data using statistical techniques. None of the correlations examined were found to be suitably accurate over the range of conditions normally encountered in direct expansion evaporators. A new correlation was developed and is presented here, that can be used with an acceptable degree of accuracy by the design engineer. The correlation is presented in a form that can be easily written into a program for solution on a programmable calculator leading to quick and accurate evaluation of the pressure drop that accompanies a refrigerant evaporatoring inside a horontal tube evaporator.

• Research Organization: Polytechnic of the South Bank, London (UK). Inst. of Environmental Science and Technology
• OSTI ID: 5184713
• Report Number(s): PB-84-143841; TM-71
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
REFRIGERATING MACHINERY
PRESSURE DROP
EVAPORATORS
FLOW RATE
PRESSURE GRADIENTS
REFRIGERANTS
FLUIDS
MACHINERY
WORKING FLUIDS
320303* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes
320100 - Energy Conservation
Consumption
& Utilization- Buildings