scholarly journals Thermodynamic Analysis For Performance Improvement of Power Plant By Flue Gas Heat Recovery System

2018 ◽  
Vol 8 (1) ◽  
pp. 569-578
Author(s):  
Ritesh Kumar Chaurasiya et al., Ritesh Kumar Chaurasiya et al., ◽  
Keyword(s):  
Power Plant ◽  
Performance Improvement ◽  
Thermodynamic Analysis ◽  
Flue Gas ◽  
Heat Recovery ◽  
Recovery System ◽  
Heat Recovery System

scholarly journals Performance improvement of a 330MWe power plant by flue gas heat recovery system

2016 ◽  
Vol 20 (1) ◽  
pp. 303-314
Author(s):  
Changchun Xu ◽  
Min Xu ◽  
Ming Zhao ◽  
Junyu Liang ◽  
Juncong Sai ◽  
...  
Keyword(s):  
High Pressure ◽  
Power Plant ◽  
Flue Gas ◽  
Power Output ◽  
Heat Recovery ◽  
Waste Heat ◽  
Gas Temperature ◽  
Recovery System ◽  
Heat Recovery System ◽  
Plant Efficiency

In a utility boiler, the most heat loss is from the exhaust flue gas. In order to reduce the exhaust flue gas temperature and further boost the plant efficiency, an improved indirect flue gas heat recovery system and an additional economizer system are proposed. The waste heat of flue gas is used for high-pressure condensate regeneration heating. This reduces high pressure steam extraction from steam turbine and more power is generated. The waste heat recovery of flue gas decreases coal consumption. Other approaches for heat recovery of flue gas, direct utilization of flue gas energy and indirect flue gas heat recovery system, are also considered in this work. The proposed systems coupled with a reference 330MWe power plant are simulated using equivalent enthalpy drop method. The results show that the additional economizer scheme has the best performance. When the exhaust flue gas temperature decreases from 153? to 123?, power output increases by 6.37MWe and increment in plant efficiency is about 1.89%. For the improved indirect flue gas heat recovery system, power output increases by 5.68MWe and the increment in plant efficiency is 1.69%.

Coupled High-Low Energy Level Flue Gas Heat Recovery System and its Application in 1000MW Ultra-Supercritical Double Reheat Coal-Fired Unit

2017 ◽  
Author(s):  
Jiayou Liu ◽  
Fengzhong Sun ◽  
Wei Wei ◽  
Lei Ma
Keyword(s):  
Power Plant ◽  
Energy Level ◽  
Flue Gas ◽  
Heat Recovery ◽  
Waste Heat ◽  
Low Energy ◽  
Gas Temperature ◽  
Coal Consumption ◽  
Recovery System ◽  
Heat Recovery System

Recovering the waste heat of flue gas to reduce its temperature with avoiding low-temperature corrosion is an effective way to improve the economic efficiency of coal-fired power plant. A coupled high-low energy level flue gas heat recovery system was introduced in the paper. The inlet air temperature of air preheater and the temperature of turbine condensate can be increased by using this system. Thermal economy model of the system was built based on equivalent heat drop method. The system was successfully applied in 1000MW ultra-supercritical double reheat coal-fired unit in Laiwu Power Plant of China Huaneng Group, and the operation data showed the boiler flue gas temperature was not higher than 90° C, and the coal consumption was reduced by using the system. (CSPE)

On the suitable superstructure thermoeconomic optimization of a waste heat recovery system for a Brazilian diesel engine power plant

2021 ◽  
Vol 234 ◽  
pp. 113947
Author(s):  
Alexandre Persuhn Morawski ◽  
Leonardo Rodrigues de Araújo ◽  
Manuel Salazar Schiaffino ◽  
Renan Cristofori de Oliveira ◽  
André Chun ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Power Plant ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Waste Heat Recovery System ◽  
Recovery System ◽  
Heat Recovery System ◽  
Engine Power

Novel flue gas waste heat recovery system equipped with enthalpy wheel

2019 ◽  
Vol 196 ◽  
pp. 649-663 ◽  
Author(s):  
Yiyu Men ◽  
Xiaohua Liu ◽  
Tao Zhang ◽  
Xi Xu ◽  
Yi Jiang
Keyword(s):  
Flue Gas ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Waste Heat Recovery System ◽  
Recovery System ◽  
Heat Recovery System

The Comparison and Analysis of the System Utilizing the General Boiler Flue Gas Waste Heat

2014 ◽  
Vol 926-930 ◽  
pp. 829-832
Author(s):  
Yan Feng Liu ◽  
Peng Cheng Wang ◽  
Shao Shan Zhang
Keyword(s):  
Low Temperature ◽  
Flue Gas ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Waste Heat Recovery System ◽  
Recovery System ◽  
Heat Recovery System ◽  
Comparison And Analysis ◽  
Gas Recycling

Flue gas recycling system is an effective way of saving energy and improving efficiency for coal-fired power plant. In this paper, the general low-temperature economizer, heat pipe type low temperature economizer, composite phase change heat recovery system are introduced. Combined with a 600MW unit parameters, the economies of various waste heat recovery system are compared.

A Study on the Application of Abandoned Wind Electricity in Thermal Power Plant’s Heat Recovery System

2014 ◽  
Vol 1070-1072 ◽  
pp. 343-346
Author(s):  
Zeng Hong Xiao ◽  
Xing Lu Hua
Keyword(s):  
Power Plant ◽  
Heat Recovery ◽  
Thermal Power ◽  
Economic Benefits ◽  
Environmental Benefits ◽  
Heat Power ◽  
Wind Power Integration ◽  
Recovery System ◽  
Heat Recovery System ◽  
Electric Boiler

As wind power integration is scaled up year by year, the problem of abandoned wind electricity has become increasingly severe, and thus caused serious waste of energy. To solve the problem of abandoned wind electricity, this paper tries to heat power plant’s back water in electric boiler to absorb abandoned wind electricity. Taking a thermal power plant for example, the application of electric boiler in backwater system can bring great economic benefits and environmental benefits, and provide a reasonable way and solution for the use of abandoned wind electricity.

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