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ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
A NUMERICAL PROCEDURE FOR SIMULATION OF A HOUSEHOLD VAPOR COMPRESSION REFRIGERATION SYSTEM UNDER STEADY-STATE CONDITIONS USING HFC-134A AND HC-600A AS REFRIGERANTS
Submission Author:
Gustavo Aguiar , SP
Co-Authors:
Gherhardt Ribatski
Presenter: Gustavo Aguiar
doi://10.26678/ABCM.ENCIT2016.CIT2016-0010
Abstract
This work concerns the development of a mathematical model and a procedure for its numerical solution to evaluate the system-level thermal performance of a household vapor compression refrigeration cycle operating with the fluids HC-600a and HFC-134a under steady-state conditions. The hermetic compressor was modelled based on a semi-empirical approach to evaluate volumetric and overall efficiencies. To ensure numerical robustness, an explicit algebraic model was adopted for the capillary tube. The roll-bond evaporator and a wire-and-tube condenser performance were evaluated by a quasi-1D tube-fin flow model coupled with suitable pressure drop gradient and heat transfer coefficient correlations. At the end, all components were integrated and solved by an iterative procedure.
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