Open AccessAnálisis de las irreversibilidades en un proceso de paro y arranque en un sistema de refrigeración con R-134a
Author(s) -
Carlos Rangel-Romero,
Juan Carlos Rojas-Garnica,
Guillermo Flores-Martíne,
Antonio Barcelata-Pinzón
Publication year - 2020
Publication title -
revista de innovación sistemática
Language(s) - English
Resource type - Journals
ISSN - 2523-6784
DOI - 10.35429/jsi.2020.15.4.1.6
Subject(s) - gas compressor , refrigerant , evaporator , thermal expansion valve , refrigeration , condenser (optics) , vapor compression refrigeration , work (physics) , compression (physics) , thermodynamics , mechanical engineering , physics , materials science , engineering , light source , optics
In this work, an evaluation of the energy in a start-stop process is made by analyzing the generated irreversibilities in a refrigeration system by mechanical vapor compression with R-134a refrigerant at a flow of 1.0 L / s. This system is installed in the LABINTHAP of the SEPI-ESIME-IPN. For this analysis, there is software that captures data on the pressures and temperatures from the refrigerant at the inlet and outlet of the evaporator, compressor, condenser, and expansion valve at oneminute intervals. For the analysis of the generated irreversibilities, the first and second laws of thermodynamics were used. And, in the process evaluation of stopping and starting, it was shown that the compressor sets a trend of higher energy consumption, so a process of regulation of the refrigeration system by mechanical compression of steam is proposed.