Optimization Potentials for the Waste Heat Recovery of a Gas-Steam Combined Cycle Power Plant Based on Absorption Heat Pump

2019 ◽  
Vol 28 (2) ◽  
pp. 283-293 ◽  
Author(s):  
Hongsheng Zhang ◽  
Hongbin Zhao ◽  
Zhenlin Li ◽  
Eric Hu
1996 ◽  
Vol 118 (3) ◽  
pp. 561-564 ◽  
Author(s):  
B. Seyedan ◽  
P. L. Dhar ◽  
R. R. Gaur ◽  
G. S. Bindra

In the present work a procedure for optimum design of waste heat recovery boiler of a combined cycle power plant has been developed. This method enables the optimization of waste heat recovery boiler independent of the rest of the system and the design thus obtained can directly be employed in an existing plant.


Author(s):  
Kwangkook Jeong

A section to delineate ‘waste heat recovery’ has been written to contribute for the ASME Power Plant Cooling Specification/Decision-making Guide to be published in 2013. This paper informs tentative contents for the section on how to beneficially apply waste heat and water recovery technology into power plants. This paper describes waste heat recovery in power plant, current/innovative technologies, specifications, case study, combined cycle, thermal benefits, effects on system efficiency, economic and exergetic benefits. It also outlines water recovery technologies, benefits in fresh water consumptions, reducing acids emission, additional cooling effects, economic analysis and critical considerations.


Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6256
Author(s):  
Jinshi Wang ◽  
Weiqi Liu ◽  
Guangyao Liu ◽  
Weijia Sun ◽  
Gen Li ◽  
...  

In northern China, many thermal power plants use absorption heat pump to recover low-grade heat from turbine exhaust steam due to the irreplaceable advantages of the absorption heat pump in waste heat recovery. In the process of designing a waste heat recovery system, few researchers have considered the relationship between the design power of the heat pump and the actual heating load of the heating network. Based on the heating load characteristics, this paper puts forward a design idea which uses an absorption heat pump to recover waste heat from a steam turbine exhaust for heating supply. The operation mode of the system for different design powers of the heat pump was stated. An economic analysis model of the waste heat recovery system was proposed, and the optimal design power of the heat pump could be obtained. For a specific unit, the corresponding waste heat recovery system was designed, and various factors affecting the economy of the system were discussed and analyzed in detail.


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