Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

Improvement in performance of the boilers in 4th refinery of south pars gas complex by energy and exergy analysis

Authors
sajjad koochakinia 1
Mahdi Deymi-Dashtebayaz 2
Abbas Golnari-Ardakani 3
1 Faculty of Mechanical Engineering, Hakim Sabzevari University, Sabzevar, Iran
2 Faculty of Mechanical Engineering, Hakim Sabzevari University, Sabzevar, Iran,
3 South Pars Gas Complex, Assaluyeh, Iran
Abstract
In this paper, improving the performance of the boilers 4th refinery of south pars gas complex, using energy and exergy analysis is discussed. After modeling the factors affecting the performance boilers of the refinery such as variations in ambient temperature, relative humidity, percent excess air and preheat boiler feed water are investigated. According to the results of thermal efficiency and exergy efficiency of 4the boilers 4th refinery operating conditions (ambient temperature 25 , relative humidity of 70 % air and excess air of 35 %), respectively 75.78 % and 39.64 % has been obtained, Also by setting the percentage of excess air in the combustion chamber of the boiler, exergy efficiency of the boiler can be increased to 41.46%.
Keywords
Optimization
Boiler
Exergy Analysis
Efficiency
South Pars Gas Complex

Subjects

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Iranian Journal of Mechanical Engineering Transactions of ISME
Volume 20, Issue 2 - Serial Number 51
Fluid Mechanics and Heat Transfer
Spring 2018
Pages 72-91

  • Receive Date 15 July 2017
  • Revise Date 18 January 2018
  • Accept Date 06 October 2018