Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates

Majed Alhazmy; Badr Habeebullah; Ahmad Bokhary; Rahim Jassim

doi:doi:10.11648/j.ajetm.20170204.12

| Peer-Reviewed

Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates

Majed Alhazmy, Badr Habeebullah, Ahmad Bokhary, Rahim Jassim

Published in American Journal of Engineering and Technology Management (Volume 2, Issue 4)

Received: 13 August 2017 Accepted: 28 August 2017 Published: 25 October 2017

Views: Downloads:

Download PDF

Share This Article

Twitter
Linked In
Facebook

Abstract

In this paper, an exergy analysis has been used to examine for a combination of cooling the compressor intake air and inject steam in the combustion chamber the performance enhancement of gas turbine power plants using by a combination of intake air cooling the compressor intake air and injecting steam in the combustion chamber is studied. The limits of the cooling capability of an evaporative cooler are analyzed and formulated in terms of the characteristic dimensionless groups: the temperature ratio (ξ_T), the power gain ratio (PGR), Thermal efficiency change (TEC) and humidity ratio (RH). Similarly the effect of steam injected is presented as a ratio (y) of total volumetric flow rate. The effect of different pressure ratio (PR) is examined for Saudi Arabia summer weather when the turbine inlet temperature, T₃, is a predetermined of 1373.15 K. The results for a specific example where the air evaporative cooler drops the temperature to the wet bulb temperature is presented and show the power gain ratio enhancement depends on the ambient temperature, relative humidity, evaporative cooler effectiveness and slightly on the pressure ratio. The results indicate for PR =10, the PGR is enhanced by 9% at 20% relative humidity and drops to 3.37% at 60% relative humidity. The daily performance of the cooling method is examined for the hot humid conditions of Jeddah, Saudi Arabia. The results show that the evaporative cooler increased both the daily power output and the thermal efficiency by 2.52% and 0.112% respectively. In addition, the result shows that the combustion irreversibility is the dominant in the governing the system PGR and TEC with various steam injection ratios for PR=10.

Published in	American Journal of Engineering and Technology Management (Volume 2, Issue 4)
DOI	10.11648/j.ajetm.20170204.12
Page(s)	45-55
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Exergy Analysis, Gas Turbine, Air-Cooling, Steam Injection, Power Enhancement, Evaporative Cooler

References

[1]	Alhazmy, M. M., and Najjar, Y. S. H. 2004. Augmentation of gas turbine performance using air coolers, App. Thermal Engineering, Vol. 24, pp 415-429.
[2]	Cortes, C. P. E., and Willems, D. 2003. Gas turbine inlet cooling techniques,: An overview of current technology, Proceedings Power GEN 2003, Las Vegas Nevada Dec. 9-11.
[3]	Darmadhikari, S., Andrepont, J. S., 2004, Boost gas turbine performance by inlet air cooling, J. Hydrocarbon Processing. Vol. 83 (2), pp 77-86.
[4]	Huang, Y. C., Hung, C. I. and Chen C. K. 2000. Exergy analysis for a combined system of steam-injected gas turbine cogeneration and multiple- effect evaporation. J. of power and Energy, IMechI, Vol 214, pp 61-73.
[5]	Jassim, R. K. Zaki, G. M. and Alhazmy, M. M. “Energy and exergy analysis of reverse brayton refrigerator for gas turbine power boosting, Chapter 4: Efficiency, Performance and Robustness of Gas Turbines”, pp 97-121 (2012).
[6]	Korakianities, T. and Wilson, D. G. 1994. Models for predicting the performance of Brayton-cycle engines, Engineering for gas Turbine and Power. Vol. 116, pp 381-388
[7]	Ameri, M., Nabati, H. Keshtgar, A., 2004, Gas turbine power augmentation using fog inlet cooling system, Proceedings ESDA04 7^th Biennial conf. engineering systems design and analysis, paper ESDA2004-58101, Manchester, UK.
[8]	K. A. Klein, and F. L. Alvarado, EES, Engineering equation solver (2007), Version 7.933, F-Chart Software, WI. USA.
[9]	Dossat, R. J., Principles of Refrigeration, John Wiley and Sons, NY. 1997.
[10]	Almutairi A., Pilidis P. and Al-Mutawa N. Energetic and Exergetic Analysis of Combined Cycle Power Planr: Part 1 Operation and Performance. Energies 2015, 8, 14118-11135.
[11]	Mc Quiston, F. C. Parker, J. D. Spilter, J. D. 2000. Heating, Ventilating and Air conditioning: Design and analysis, 5^th edition, John Wily, NY.
[12]	Kam, W. Li, and Priddy, A. P. 1985. Power plant system design. John Wiley & Sons, NY, USA.

Cite This Article

Plain Text BibTeX RIS

APA Style

Majed Alhazmy, Badr Habeebullah, Ahmad Bokhary, Rahim Jassim. (2017). Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates. American Journal of Engineering and Technology Management, 2(4), 45-55. https://doi.org/10.11648/j.ajetm.20170204.12

Copy | Download

ACS Style

Majed Alhazmy; Badr Habeebullah; Ahmad Bokhary; Rahim Jassim. Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates. Am. J. Eng. Technol. Manag. 2017, 2(4), 45-55. doi: 10.11648/j.ajetm.20170204.12

Copy | Download

AMA Style

Majed Alhazmy, Badr Habeebullah, Ahmad Bokhary, Rahim Jassim. Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates. Am J Eng Technol Manag. 2017;2(4):45-55. doi: 10.11648/j.ajetm.20170204.12

Copy | Download

@article{10.11648/j.ajetm.20170204.12,
  author = {Majed Alhazmy and Badr Habeebullah and Ahmad Bokhary and Rahim Jassim},
  title = {Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates},
  journal = {American Journal of Engineering and Technology Management},
  volume = {2},
  number = {4},
  pages = {45-55},
  doi = {10.11648/j.ajetm.20170204.12},
  url = {https://doi.org/10.11648/j.ajetm.20170204.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajetm.20170204.12},
  abstract = {In this paper, an exergy analysis has been used to examine for a combination of cooling the compressor intake air and inject steam in the combustion chamber the performance enhancement of gas turbine power plants using by a combination of intake air cooling the compressor intake air and injecting steam in the combustion chamber is studied. The limits of the cooling capability of an evaporative cooler are analyzed and formulated in terms of the characteristic dimensionless groups: the temperature ratio (ξT), the power gain ratio (PGR), Thermal efficiency change (TEC) and humidity ratio (RH). Similarly the effect of steam injected is presented as a ratio (y) of total volumetric flow rate. The effect of different pressure ratio (PR) is examined for Saudi Arabia summer weather when the turbine inlet temperature, T3, is a predetermined of 1373.15 K. The results for a specific example where the air evaporative cooler drops the temperature to the wet bulb temperature is presented and show the power gain ratio enhancement depends on the ambient temperature, relative humidity, evaporative cooler effectiveness and slightly on the pressure ratio. The results indicate for PR =10, the PGR is enhanced by 9% at 20% relative humidity and drops to 3.37% at 60% relative humidity. The daily performance of the cooling method is examined for the hot humid conditions of Jeddah, Saudi Arabia. The results show that the evaporative cooler increased both the daily power output and the thermal efficiency by 2.52% and 0.112% respectively. In addition, the result shows that the combustion irreversibility is the dominant in the governing the system PGR and TEC with various steam injection ratios for PR=10.},
 year = {2017}
}

Copy | Download

TY  - JOUR
T1  - Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates
AU  - Majed Alhazmy
AU  - Badr Habeebullah
AU  - Ahmad Bokhary
AU  - Rahim Jassim
Y1  - 2017/10/25
PY  - 2017
N1  - https://doi.org/10.11648/j.ajetm.20170204.12
DO  - 10.11648/j.ajetm.20170204.12
T2  - American Journal of Engineering and Technology Management
JF  - American Journal of Engineering and Technology Management
JO  - American Journal of Engineering and Technology Management
SP  - 45
EP  - 55
PB  - Science Publishing Group
SN  - 2575-1441
UR  - https://doi.org/10.11648/j.ajetm.20170204.12
AB  - In this paper, an exergy analysis has been used to examine for a combination of cooling the compressor intake air and inject steam in the combustion chamber the performance enhancement of gas turbine power plants using by a combination of intake air cooling the compressor intake air and injecting steam in the combustion chamber is studied. The limits of the cooling capability of an evaporative cooler are analyzed and formulated in terms of the characteristic dimensionless groups: the temperature ratio (ξT), the power gain ratio (PGR), Thermal efficiency change (TEC) and humidity ratio (RH). Similarly the effect of steam injected is presented as a ratio (y) of total volumetric flow rate. The effect of different pressure ratio (PR) is examined for Saudi Arabia summer weather when the turbine inlet temperature, T3, is a predetermined of 1373.15 K. The results for a specific example where the air evaporative cooler drops the temperature to the wet bulb temperature is presented and show the power gain ratio enhancement depends on the ambient temperature, relative humidity, evaporative cooler effectiveness and slightly on the pressure ratio. The results indicate for PR =10, the PGR is enhanced by 9% at 20% relative humidity and drops to 3.37% at 60% relative humidity. The daily performance of the cooling method is examined for the hot humid conditions of Jeddah, Saudi Arabia. The results show that the evaporative cooler increased both the daily power output and the thermal efficiency by 2.52% and 0.112% respectively. In addition, the result shows that the combustion irreversibility is the dominant in the governing the system PGR and TEC with various steam injection ratios for PR=10.
VL  - 2
IS  - 4
ER  -

Copy | Download

Author Information

Majed Alhazmy

Mechanical Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
Badr Habeebullah

Mechanical Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
Ahmad Bokhary

Mechanical Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
Rahim Jassim

Technical Department, Saudi Electric Services Polytechnic (SESP), Baish, Saudi Arabia

Download PDF

Sections

Plain Text BibTeX RIS

APA Style

Majed Alhazmy, Badr Habeebullah, Ahmad Bokhary, Rahim Jassim. (2017). Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates. American Journal of Engineering and Technology Management, 2(4), 45-55. https://doi.org/10.11648/j.ajetm.20170204.12

Copy | Download

ACS Style

Majed Alhazmy; Badr Habeebullah; Ahmad Bokhary; Rahim Jassim. Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates. Am. J. Eng. Technol. Manag. 2017, 2(4), 45-55. doi: 10.11648/j.ajetm.20170204.12

Copy | Download

AMA Style

Majed Alhazmy, Badr Habeebullah, Ahmad Bokhary, Rahim Jassim. Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates. Am J Eng Technol Manag. 2017;2(4):45-55. doi: 10.11648/j.ajetm.20170204.12

Copy | Download

@article{10.11648/j.ajetm.20170204.12,
  author = {Majed Alhazmy and Badr Habeebullah and Ahmad Bokhary and Rahim Jassim},
  title = {Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates},
  journal = {American Journal of Engineering and Technology Management},
  volume = {2},
  number = {4},
  pages = {45-55},
  doi = {10.11648/j.ajetm.20170204.12},
  url = {https://doi.org/10.11648/j.ajetm.20170204.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajetm.20170204.12},
  abstract = {In this paper, an exergy analysis has been used to examine for a combination of cooling the compressor intake air and inject steam in the combustion chamber the performance enhancement of gas turbine power plants using by a combination of intake air cooling the compressor intake air and injecting steam in the combustion chamber is studied. The limits of the cooling capability of an evaporative cooler are analyzed and formulated in terms of the characteristic dimensionless groups: the temperature ratio (ξT), the power gain ratio (PGR), Thermal efficiency change (TEC) and humidity ratio (RH). Similarly the effect of steam injected is presented as a ratio (y) of total volumetric flow rate. The effect of different pressure ratio (PR) is examined for Saudi Arabia summer weather when the turbine inlet temperature, T3, is a predetermined of 1373.15 K. The results for a specific example where the air evaporative cooler drops the temperature to the wet bulb temperature is presented and show the power gain ratio enhancement depends on the ambient temperature, relative humidity, evaporative cooler effectiveness and slightly on the pressure ratio. The results indicate for PR =10, the PGR is enhanced by 9% at 20% relative humidity and drops to 3.37% at 60% relative humidity. The daily performance of the cooling method is examined for the hot humid conditions of Jeddah, Saudi Arabia. The results show that the evaporative cooler increased both the daily power output and the thermal efficiency by 2.52% and 0.112% respectively. In addition, the result shows that the combustion irreversibility is the dominant in the governing the system PGR and TEC with various steam injection ratios for PR=10.},
 year = {2017}
}

Copy | Download

TY  - JOUR
T1  - Exergy Analysis of Combined Effect of Evaporative Cooling and Steam Injection on Gas Turbines Performance Enhancement in Hot and Humid Climates
AU  - Majed Alhazmy
AU  - Badr Habeebullah
AU  - Ahmad Bokhary
AU  - Rahim Jassim
Y1  - 2017/10/25
PY  - 2017
N1  - https://doi.org/10.11648/j.ajetm.20170204.12
DO  - 10.11648/j.ajetm.20170204.12
T2  - American Journal of Engineering and Technology Management
JF  - American Journal of Engineering and Technology Management
JO  - American Journal of Engineering and Technology Management
SP  - 45
EP  - 55
PB  - Science Publishing Group
SN  - 2575-1441
UR  - https://doi.org/10.11648/j.ajetm.20170204.12
AB  - In this paper, an exergy analysis has been used to examine for a combination of cooling the compressor intake air and inject steam in the combustion chamber the performance enhancement of gas turbine power plants using by a combination of intake air cooling the compressor intake air and injecting steam in the combustion chamber is studied. The limits of the cooling capability of an evaporative cooler are analyzed and formulated in terms of the characteristic dimensionless groups: the temperature ratio (ξT), the power gain ratio (PGR), Thermal efficiency change (TEC) and humidity ratio (RH). Similarly the effect of steam injected is presented as a ratio (y) of total volumetric flow rate. The effect of different pressure ratio (PR) is examined for Saudi Arabia summer weather when the turbine inlet temperature, T3, is a predetermined of 1373.15 K. The results for a specific example where the air evaporative cooler drops the temperature to the wet bulb temperature is presented and show the power gain ratio enhancement depends on the ambient temperature, relative humidity, evaporative cooler effectiveness and slightly on the pressure ratio. The results indicate for PR =10, the PGR is enhanced by 9% at 20% relative humidity and drops to 3.37% at 60% relative humidity. The daily performance of the cooling method is examined for the hot humid conditions of Jeddah, Saudi Arabia. The results show that the evaporative cooler increased both the daily power output and the thermal efficiency by 2.52% and 0.112% respectively. In addition, the result shows that the combustion irreversibility is the dominant in the governing the system PGR and TEC with various steam injection ratios for PR=10.
VL  - 2
IS  - 4
ER  -

Copy | Download