Open AccessPerformance analysis of multi-refrigerant multi-variable environment refrigeration system based on marine cold chamber
Author(s) -
Jie Zhu,
Dazhang Yang,
Qing Zhang,
Jing Xie
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2195/1/012037
Subject(s) - refrigeration , refrigerant , evaporator , solver , thermodynamics , condenser (optics) , injector , real gas , momentum (technical analysis) , energy conservation , equation of state , computer science , environmental science , control theory (sociology) , mechanical engineering , mathematics , engineering , physics , mathematical optimization , gas compressor , light source , electrical engineering , control (management) , finance , artificial intelligence , economics , optics
This paper is based on the engineering equation solver to calculate the performance of refrigeration system under multi-refrigerant multivariable environment, which can simulate the operating performance of the system under different working conditions and the view of each state point, and provide help for the design and optimization of trans-critical CO2 refrigeration cycle refrigeration units. Using thermodynamic analysis, the system performance is observed by using the equations of conservation of energy, conservation of momentum and conservation of mass as the basis for the change of evaporator pressure, gas cooler pressure and intermediate pressure in the system; the state of each position in the ejector part of the system is calculated; after the calculation is completed, the pressure-enthalpy diagram of the system can be plotted; according to the different data parameters selected, the COP of the system can be plotted with the change of certain data parameters for different parameters. The results showed that the calculation method used is suitable for different refrigerants, compared with the traditional calculation and selection, the advantage of the EES software is that it can use the laws of thermodynamics for calculation and iteration.