Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
STUDY OF THE THERMODYNAMIC PERFORMANCE OF A REFRIGERATION SYSTEM WITH VARIABLE ROTATION COMPRESSOR AND ELETRONIC EXPANSION VALVE
Submission Author:
Yuri Alisson Barreto Cutrim , SP , Brazil
Co-Authors:
Yuri Alisson Barreto Cutrim, Luiz Felipe Mendes Moura
Presenter: Yuri Alisson Barreto Cutrim
doi://10.26678/ABCM.COBEM2017.COB17-2167
Abstract
This present paper analyzes, experimentally, the thermodynamic behavior of a vapor compression refrigeration system. The experimental workbench consists of two units, one main and one secondary. In the primary, the components of a real refrigeration cycle, a variable rotation compressor, a condenser, an electronic expansion valve (VEE), an evaporator and a refrigerant fluid R134a are available. Already in the secondary unit, with the aid of a motor pump runs a mixture of water and ethyl alcohol, exchanging heat with the primary unit to guarantee the thermal comfort of the environment. For evaluation, parameters such as evaporation pressure, condensation pressure, mass flow, thermal load, power consumption and coefficient of performance(COP) are observed. Therefore, with the experiments, it was observed that with an increase in the rotation of the compressor, there was an increase in the thermal capacity and, consequently, an improvement in the COP of the system.
Keywords
Refrigeration, Variable Speed Compressor, Eletronic expansion valve, COP
