A Computational Model of a Combined Cycle Power Generation Unit

2004 ◽  
Vol 126 (3) ◽  
pp. 231-240 ◽  
Author(s):  
V. Ramaprabhu ◽  
R. P. Roy

A computational model of a combined cycle power generation unit is developed and applied to one operated by a local utility company. The objective is to predict the performance of this unit by carrying out energy and exergy analyses of its components. The model is based on thermodynamic, heat transfer, and psychrometric principles, and includes an inlet air conditioning (fogging) system for the gas turbine cycle. To evaluate the model, simulation results are compared with available plant test data at rated load with and without the inlet fogging system in operation.

2011 ◽  
Vol 110-116 ◽  
pp. 4574-4577
Author(s):  
Ibrahim Alaefour ◽  
Bale V. Reddy

Combined cycle power generation plants are becoming popular to generate power at higher efficiencies with reduced greenhouse gas emissions. In the present work the effect of steam injection in the gas turbine combustion chamber on the performance of a natural gas fired combined cycle power plant is investigated. For a particular combined cycle power generation configuration, the effect of steam injection on the performance is conducted based on first law of thermodynamics. The steam injection influences the work output and efficiencies of gas turbine, steam turbine and combined cycle power generation unit.


2019 ◽  
Vol 109 ◽  
pp. 00065
Author(s):  
Yurii Oksen ◽  
Maksym Radiuk ◽  
Yurii Komissarov ◽  
Mykhailo Kirsanov

The possibility of increasing the efficiency of drying coal concentrate unit on the basis of pipe-dryers has been investigated by converting the heat of flue gases outlet into electrical energy and the heat potential of hot water supply system with a heat power generation unit operating on low-boiling working fluids. A method and an algorithm for calculating the thermal mode of the unit under the conditions of specified limitations on temperature pressures in heat exchangers have been developed. On the basis of mathematical modeling of thermal conditions, it has been found that under the conditions of PD-11 pipe-dryers, when the heat power generation unit operates with butane-pentane mixture, 204 kW of electricity can be generated with the condensation cycle, and 1780 kW of heat and 65 kW of electric energy can be generated with the heating cycle.


2018 ◽  
Vol 51 (28) ◽  
pp. 696-701 ◽  
Author(s):  
Mingjuan Zhu ◽  
Jiong Shen ◽  
Kwang Y. Lee ◽  
Xiao Wu

2014 ◽  
Vol 161 (14) ◽  
pp. F1348-F1353 ◽  
Author(s):  
Yuqing Wang ◽  
Yixiang Shi ◽  
Xiankai Yu ◽  
Ningsheng Cai ◽  
Jiqing Qian ◽  
...  

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