scholarly journals Comparative Analysis of a Few Novel Multi-evaporator CO2-NH3 Cascade Refrigeration System for Seafood Processing & Storage

2021 ◽  
Author(s):  
Santosh Kumar Saini ◽  
Mani Sankar Dasgupta ◽  
Kristina N. Widell ◽  
Souvik Bhattacharyya
Keyword(s):  
Comparative Analysis ◽  
Refrigeration System ◽  
Cascade Refrigeration System ◽  
Cascade Refrigeration ◽  
Seafood Processing

Comparative analysis of thermodynamic performance of a cascade refrigeration system for refrigerant couples R41/R404A and R23/R404A

2016 ◽  
Vol 184 ◽  
pp. 19-25 ◽  
Author(s):  
Zhili Sun ◽  
Youcai Liang ◽  
Shengchun Liu ◽  
Weichuan Ji ◽  
Runqing Zang ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Refrigeration System ◽  
Thermodynamic Performance ◽  
Cascade Refrigeration System ◽  
Cascade Refrigeration

The Comparative Analysis of R22 and R134a Applied in a Five-Stage Auto-Cascade Refrigeration System

2013 ◽  
Vol 291-294 ◽  
pp. 1740-1745
Author(s):  
Wei Zhao ◽  
Rui Xi Liu ◽  
Hai Dong Zhang ◽  
Hua Zhang ◽  
Shu Chun Zhang
Keyword(s):  
Comparative Analysis ◽  
High Temperature ◽  
Refrigeration System ◽  
Discharge Temperature ◽  
Cascade Refrigeration System ◽  
High Temperature Stage ◽  
Cascade Refrigeration

The mixed refrigerants R22/R23/R14/R740/R728 and R134a/R23/R14/R740/R728 are used in a five-stage auto-cascade refrigeration system for study in this paper. Through theoretic comparison of high temperature stage refrigerant R22 and R134a and repeated experiments we can get the results that the discharge temperature of the refrigerant R134a can be effectively controlled and a lower refrigeration temperature can be got than the refrigerant R22.

scholarly journals Comparative analysis of a cooling systems working on an environmentally friendly refrigerants

2021 ◽  
pp. 32-40
Author(s):  
Adam RUCIŃSKI ◽  
Mateusz DALBA ◽  
Rafał LASKOWSKI
Keyword(s):  
Carbon Dioxide ◽  
Adverse Effect ◽  
Comparative Analysis ◽  
Operating Parameters ◽  
Meat Processing ◽  
Refrigeration System ◽  
Cooling Systems ◽  
Cascade Refrigeration System ◽  
Polish Law ◽  
Cascade Refrigeration

The paper treats with refrigerants which affect on excessive heating of atmosphere. They are in group offluorinated greenhouse gases which are regulated by European and polish law. The main aim is to lower their amount in industry leading to overall removal from use. We present possible way to design refrigeration system lowering their adverse effect on natural environment. So three options of cooling systems are analyzed: one-stage refrigeration system working with R449A, cascade refrigeration system with R744 (carbon dioxide)/ R134a and R717 (ammonia) refrigeration plant. Due to the nowadays raising use of the cascade systems, an analysis of the operating parameters of such installation was carried out with considering the cascade heat exchanger as a condenser/evaporator. The installations concerned are three alternative offers for meat processing manufactory. A thermal balance was prepared for chambers located in building and the operating parameters of the installation were assumed. The equipment corresponding to the required cooling capacities were selected.

scholarly journals Comparative Analysis of Electric Energy Consumption of Cascade System R134a/CO2 with Single Stage R404a and Two-Stage CO2 Installation

2020 ◽  
Author(s):  
Dimitrije Ninković ◽  
◽  
Uroš Milovančević ◽  
Milena Otović ◽  
Vladimir Černicin
Keyword(s):  
Energy Consumption ◽  
Comparative Analysis ◽  
Electric Energy ◽  
Cooling Capacity ◽  
Single Stage ◽  
Refrigeration System ◽  
Two Stage ◽  
Electric Energy Consumption ◽  
Cascade Refrigeration System ◽  
Cascade Refrigeration

The paper analyzes electric energy consumption of three different refrigeration installations: cascade refrigeration system with R134a in the high temperature circuit and CO2 in the low temperature circuit, single stage refrigeration system operating with R404A and two-stage transcritical CO2 system. The indirect impact of the refrigeration system on global warming through electric energy consumption was examined. Thermodynamic cycles of these installations have been described and models have been developed to analyze the electric energy consumption required to drive the compressor as the largest consumer, for the cooling capacity of the evaporator 5,7 kW at evaporation temperature -30 °C for meteorological 2017, in the city of Belgrade. As a basis for comparative analysis, the existing cascade refrigeration system, which is located in the Laboratory for Thermal Science at the Faculty of Mechanical Engineering in Belgrade, was selected.

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