Thermal-economic analysis of a transcritical Rankine power cycle with reheat enhancement for a low-grade heat source

2012 ◽  
Vol 37 (8) ◽  
pp. 857-867 ◽  
Author(s):  
Hanfei Tuo
Keyword(s):  
Heat Source ◽  
Economic Analysis ◽  
Low Grade ◽  
Power Cycle ◽  
Low Grade Heat

scholarly journals The CO2 Transcritical Power Cycle for Low Grade Heat Recovery: Discussion on Temperature Profiles in System Heat Exchangers

2011 ◽  
Author(s):  
Y. Chen ◽  
P. Lundqvist
Keyword(s):  
Carbon Dioxide ◽  
Heat Source ◽  
Temperature Profile ◽  
Supercritical Co2 ◽  
Heat Recovery ◽  
Low Grade ◽  
Power Cycle ◽  
Low Grade Heat ◽  
Cycle Efficiency ◽  
Better Than

Carbon dioxide transcritical power cycle has many advantages in low-grade heat source recovery compared to conventional systems with other working fluids. This is mainly due to the supercritical CO2’s temperature profile can match the heat source temperature profile better than other pure working fluids and its heat transfer performance is better than the fluid mixtures, which enables a better cycle efficiency. Moreover, the specific heat of supercritical CO2 will have sharp variations in the region close to its critical point, which will create a concave shape temperature profile in the heat exchanger that used for recovering heat from low-grade heat sources. This brings more advantage to carbon dioxide transcritical power systems in low-grade heat recovery. This study discusses the advantage of carbon dioxide power system in low-grade heat source recovery by taking this effect into account. A basic carbon dioxide transcritical power system with an Internal Heat Exchanger (IHX) is employed for the analysis and the system performance is also compared with a basic Organic Rankin Cycle (ORC). Software Engineering Equation Solver (EES) and Refprop 7.0 are used for the cycle efficiency and working fluid properties calculations.

Thermodynamic analysis of a Kalina-based combined cooling and power cycle driven by low-grade heat source

2017 ◽  
Vol 111 ◽  
pp. 8-19 ◽  
Author(s):  
Liyan Cao ◽  
Jiangfeng Wang ◽  
Hongyang Wang ◽  
Pan Zhao ◽  
Yiping Dai
Keyword(s):  
Heat Source ◽  
Thermodynamic Analysis ◽  
Low Grade ◽  
Power Cycle ◽  
Low Grade Heat ◽  
Combined Cooling

An Experimental Study of Adsorption Cooling System by Using Low Grade Heat Source

2018 ◽  
Author(s):  
H. M. Elgohary ◽  
H. M. Soliman ◽  
A. M. Soliman ◽  
H. H. Gouda ◽  
S.P. Chowdhury
Keyword(s):  
Experimental Study ◽  
Heat Source ◽  
Cooling System ◽  
Low Grade ◽  
Adsorption Cooling System ◽  
Low Grade Heat
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