Performance characteristics of an irreversible magnetic Brayton refrigeration cycle

2008 ◽  
Vol 31 (1) ◽  
pp. 138-144 ◽  
Author(s):  
Ji-Zhou He ◽  
Xin Wu ◽  
Xin-Fa Deng
Keyword(s):  
Performance Characteristics ◽  
Refrigeration Cycle ◽  
Brayton Refrigeration Cycle

Thermodynamic Performance Characteristics of a Regenerative Brayton Refrigeration Cycle Using Gd0.45Tb0.55 and Gd as the Working Substance

2013 ◽  
Vol 750-752 ◽  
pp. 1016-1019 ◽  
Author(s):  
Shan He Su ◽  
Zhi Chao Xu ◽  
Guo Xing Lin ◽  
Gildas Diguet ◽  
Jin Can Chen
Keyword(s):  
Heat Capacity ◽  
Numerical Calculation ◽  
Room Temperature ◽  
Magnetic Entropy Change ◽  
Entropy Change ◽  
Performance Characteristics ◽  
Refrigeration Cycle ◽  
Magnetic Entropy ◽  
Thermodynamic Performance ◽  
Brayton Refrigeration Cycle

Based on experimental characteristics of the iso-field heat capacity of the working substances Gd0.45Tb0.55and Gd, the magnetic entropy change with temperature is calculated. The regenerative Brayton refrigeration cycles employing these materials as the working substances are established. By means of thermodynamic analysis and numerical calculation, the effects of the non-perfect regeneration on the performance characteristics of the refrigeration cycles are revealed. Furthermore, the cyclic performances employing Gd0.45Tb0.55and Gd as the working substances are evaluated and compared. The results obtained may provide some useful information for the optimal design of the room temperature magnetic refrigerators.

Brayton refrigeration cycle for gas turbine inlet air cooling

2007 ◽  
Vol 31 (13) ◽  
pp. 1292-1306 ◽  
Author(s):  
Galal M. Zaki ◽  
Rahim K. Jassim ◽  
Majed M. Alhazmy
Keyword(s):  
Gas Turbine ◽  
Air Cooling ◽  
Refrigeration Cycle ◽  
Turbine Inlet ◽  
Brayton Refrigeration Cycle
Sign in / Sign up

Export Citation Format

Share Document