Experimental validation of an organic rankine-vapor compression cooling cycle using low GWP refrigerant R1234ze(E)

2022 ◽  
Vol 307 ◽  
pp. 118242
Author(s):  
Alex Grauberger ◽  
Derek Young ◽  
Todd Bandhauer
Keyword(s):  
Experimental Validation ◽  
Vapor Compression ◽  
Cooling Cycle ◽  
Vapor Compression Cooling

Optimized Refrigerant Flow Rate and Dimensions of the Ejector Employed in a Modified Ejector Vapor Compression System

2020 ◽  
Vol 28 (04) ◽  
pp. 2050038
Author(s):  
Dishant Sharma ◽  
Gulshan Sachdeva ◽  
Dinesh Kumar Saini
Keyword(s):  
Flow Rate ◽  
Cooling System ◽  
Cooling Capacity ◽  
Coefficient Of Performance ◽  
Vapor Compression ◽  
Evaporator Temperature ◽  
Proposed Model ◽  
Condenser Temperature ◽  
Vapor Compression System ◽  
Vapor Compression Cooling

This paper presents the analysis of a modified vapor compression cooling system which uses an ejector as an expansion device. Expanding refrigerant in an ejector enhances the refrigeration effect and reduces compressor work. Therefore, it yields a better coefficient of performance. Thermodynamic analysis of a constant area ejector model has been done to obtain primary dimensions of the ejector for given condenser and evaporator temperature and cooling capacity. The proposed model has been used to design the ejector for three refrigerants; R134a, R152a and R1234yf. The refrigerant flow rate and the diameters at various sections of the ejector have been obtained by doing numerical modeling in Engineering Equation Solver (EES). Refrigerant R1234yf demanded the highest diameter requirements at a fixed 5∘C evaporator temperature and 40∘C condenser temperature for a given range of cooling load. Both primary and secondary refrigerants flow rates are higher for R1234yf followed by R134a and then R152a.

Simulation of an integrated hybrid desiccant vapor-compression cooling system

Energy ◽  
1986 ◽  
Vol 11 (10) ◽  
pp. 1005-1021 ◽  
Author(s):  
William M. Worek ◽  
Moon Chung-Ju
Keyword(s):  
Cooling System ◽  
Vapor Compression ◽  
Vapor Compression Cooling
Sign in / Sign up

Export Citation Format

Share Document