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ANALYSIS OF SUITABLE METHODOLOGIES FOR COMPRESSOR MASS FLOW RATE CORRECTION TO OTHER SUPERHEAT LEVELS AND REFRIGERANTS

by Javier Marchante Avellaneda, Rubén Ossorio, Emilio Navarro Peris, Som S Shrestha
Publication Type
Conference Paper
Book Title
Avances en Ciencias y Técnicas del Frío-12. Actas del XII Congreso Ibérico y X Congreso Iberoamericano de Ciencias y Técnicas del Frío CYTEF 2024
Publication Date
Page Number
2603
Publisher Location
Spain
Conference Name
XII Iberian Congress and X Ibero-American Congress of Refrigeration Sciences and Techniques. Science and Technology for a more sustainable refrigeration
Conference Location
Elche, Spain
Conference Sponsor
CYTEF 2024
Conference Date
-

Abstract

This paper investigates the impact of suction conditions and refrigerant on scroll compressor mass flow rate by using calorimeter tests from AHRI-11 and AHRI-21 reports, published by AHRI's Low-GWP Alternative Refrigerants Evaluation program.

Two Copeland scroll compressors (20 and 51 cm3) have been analyzed including different suction conditions (SH = 11K, SH = 22K, Ti = 18ºC) and several refrigerants (R134a, R32, R410A, R404A, etc.). Previous studies have explored response surfaces for energy consumption and mass flow rate variables.

This study aims to expand the analysis by identifying the optimal approach to extrapolate mass flow rate from specific suction conditions to others SH or suction temperature levels and refrigerants. The current compressor characterization standard relies on the 1981 Dabiri correlation to correct compressor mass flow rate with suction conditions. Thus, this study aims to assess the adequacy of this correction and explore alternative correction methods for improved results.