A Comparative Study on the Performance Augmentation of a Gas Turbine PowerPlant

Tikrit Journal of Engineering Sciences

Abdullateef A. Jadallah¹  Adil A. Al-Kumait² 

[1] Department of Electromechanical Engineering,University of Technology,Baghdad;Department of Mechanical Engineering,Tikrit University,Salahaldeen;

关键词: Gas turbine, Power plant, Performance enhancement, Intercooling, Regeneration, Reheater,Heat exchanger.;   

DOI  :  

来源: DOAJ

【 摘 要 】

In  the  present  work,  a  comparative  performance  analysis  of   the  gas  turbine  power  plant  with  and without power augmenting devices was carried out. The intercooler, turbine burner  (reheater), and heat exchanger were inserted individually and together to reveal the effect of each device. A model for each addition was derived on the base of the simple cycle and adapted to reflect the effect of the performance parameters on the plant  power and thermal efficiency. The heat  exchanger  with different effectiveness improves  the  thermal  efficiency  but  for  low  pressure  ratios ,  while  the  intercooler  has  low  effect  at  low pressure ratios. Its effect increases with increasing of this ratio and this needs advanced materials. The intercooler cooling percent was considered as 50%, 75% and 100%. The use of turbine burner alone augments the output power by 19.4% but on the expense of thermal efficiency (dropped by 4%) and fuel price.  The  interstage  compressor  cooling  augments  the  power  by  1.3%,  while  the  efficiency  increases slowly  and  needs  a  large  amount  of  compression.  The  combination  of  intercooling  with  turbine  burner enhances  the  power  by  13.4%.  So  the  regeneration  must  be  installed  with  them  to  ensure  an enhancement in plant compatibility and thermal efficiency.

【 授权许可】

Unknown