Investigation on the regenerative Brayton refrigeration cycle performances using novel Mn-Fe-P-Si composite material with thermal hysteresis as the working medium

2021 ◽  
Author(s):  
Yan Li ◽  
Bowei Huang ◽  
Guoxing Lin ◽  
Jincan Chen ◽  
Ekkes Brück
Keyword(s):  
Composite Material ◽  
Thermal Hysteresis ◽  
Refrigeration Cycle ◽  
Working Medium ◽  
Brayton Refrigeration Cycle

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

Parametric analysis of a gas turbine cycle coupled to a Brayton refrigeration cycle

2009 ◽  
Vol 223 (5) ◽  
pp. 497-503 ◽  
Author(s):  
L Chen ◽  
W Zhang ◽  
F Sun
Keyword(s):  
Gas Turbine ◽  
Power Efficiency ◽  
Pressure Ratio ◽  
Maximum Efficiency ◽  
Working Fluid ◽  
Inlet Temperature ◽  
Refrigeration Cycle ◽  
Fluid Temperature ◽  
Optimal Power ◽  
Brayton Refrigeration Cycle

Performance analysis and optimization of an endoreversible Brayton cycle coupled to a Brayton refrigeration cycle has been performed using finite-time thermodynamics. The analy-tical formulae are derived with respect to power, efficiency, optimal extracted pressure ratio of air refrigeration cycle corresponding to optimal power, optimal power and the corresponding efficiency. The influences of various parameters on the cycle performances are analysed by numerical examples. The results show that there exists one optimal pressure ratio of the compressor corresponding to maximum power and another optimal pressure ratio of the compressor corresponding to maximum efficiency; the compressor inlet temperature is reduced by mixing the chilled working fluid from the Brayton refrigeration cycle and the main intake working fluid streams; the intake working fluid temperature could be controlled even below the temperature of the heat sink and the gas turbine performance can be improved.

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