In this work, in order to reach to low irreversibilities, the energy and exergy have been analyzed in the boiler system of Tabriz power plant. First, it has been done to decrease the irreversibility of system. Second, flow and efficiencies of energy and exergy of the mentioned system have been studied. In the boiler, the energy efficiencies based on lower and higher heating value of fuel are 91.54% and 86.17% respectively. In other hand, the exergy efficiency is 43.98%. Comparing with Rosen and et al., it is demonstrated that, results have a logical agreement with experimental data. Accordingly, the EES used code, have been validated. Furthermore, the gas fired steam power plant efficiency has been increased by the use of irreversibilities reduction and diminution of excess combustion air and/ or the stack-gas temperature. Finally, these have been concluded, overall energy and exergy efficiencies of Tabriz power plant increase 0.497% and 0.46%, respectively when the fraction of excess combustion air decreases from 0.4 to 0.15.Also these efficiencies increase 2.196% nearly when, the stack-gas temperature decreases from 159 to 97 °C.
| Published in | American Journal of Energy Engineering (Volume 3, Issue 4) |
| DOI | 10.11648/j.ajee.20150304.11 |
| Page(s) | 57-65 |
| 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), 2015. Published by Science Publishing Group |
Excess Air, Stack Gas, Exergy Efficiency, Energy Efficiency, Boiler, Tabriz Power Plant
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APA Style
Sajjad Arefdehgani, Omid Karimi Sadaghiyani. (2015). Boiler Parametric Study of Thermal Power Plant to Opproach to Low Irreversibility. American Journal of Energy Engineering, 3(4), 57-65. https://doi.org/10.11648/j.ajee.20150304.11
ACS Style
Sajjad Arefdehgani; Omid Karimi Sadaghiyani. Boiler Parametric Study of Thermal Power Plant to Opproach to Low Irreversibility. Am. J. Energy Eng. 2015, 3(4), 57-65. doi: 10.11648/j.ajee.20150304.11
AMA Style
Sajjad Arefdehgani, Omid Karimi Sadaghiyani. Boiler Parametric Study of Thermal Power Plant to Opproach to Low Irreversibility. Am J Energy Eng. 2015;3(4):57-65. doi: 10.11648/j.ajee.20150304.11
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Download@article{10.11648/j.ajee.20150304.11,
author = {Sajjad Arefdehgani and Omid Karimi Sadaghiyani},
title = {Boiler Parametric Study of Thermal Power Plant to Opproach to Low Irreversibility},
journal = {American Journal of Energy Engineering},
volume = {3},
number = {4},
pages = {57-65},
doi = {10.11648/j.ajee.20150304.11},
url = {https://doi.org/10.11648/j.ajee.20150304.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajee.20150304.11},
abstract = {In this work, in order to reach to low irreversibilities, the energy and exergy have been analyzed in the boiler system of Tabriz power plant. First, it has been done to decrease the irreversibility of system. Second, flow and efficiencies of energy and exergy of the mentioned system have been studied. In the boiler, the energy efficiencies based on lower and higher heating value of fuel are 91.54% and 86.17% respectively. In other hand, the exergy efficiency is 43.98%. Comparing with Rosen and et al., it is demonstrated that, results have a logical agreement with experimental data. Accordingly, the EES used code, have been validated. Furthermore, the gas fired steam power plant efficiency has been increased by the use of irreversibilities reduction and diminution of excess combustion air and/ or the stack-gas temperature. Finally, these have been concluded, overall energy and exergy efficiencies of Tabriz power plant increase 0.497% and 0.46%, respectively when the fraction of excess combustion air decreases from 0.4 to 0.15.Also these efficiencies increase 2.196% nearly when, the stack-gas temperature decreases from 159 to 97 °C.},
year = {2015}
}
TY - JOUR T1 - Boiler Parametric Study of Thermal Power Plant to Opproach to Low Irreversibility AU - Sajjad Arefdehgani AU - Omid Karimi Sadaghiyani Y1 - 2015/06/03 PY - 2015 N1 - https://doi.org/10.11648/j.ajee.20150304.11 DO - 10.11648/j.ajee.20150304.11 T2 - American Journal of Energy Engineering JF - American Journal of Energy Engineering JO - American Journal of Energy Engineering SP - 57 EP - 65 PB - Science Publishing Group SN - 2329-163X UR - https://doi.org/10.11648/j.ajee.20150304.11 AB - In this work, in order to reach to low irreversibilities, the energy and exergy have been analyzed in the boiler system of Tabriz power plant. First, it has been done to decrease the irreversibility of system. Second, flow and efficiencies of energy and exergy of the mentioned system have been studied. In the boiler, the energy efficiencies based on lower and higher heating value of fuel are 91.54% and 86.17% respectively. In other hand, the exergy efficiency is 43.98%. Comparing with Rosen and et al., it is demonstrated that, results have a logical agreement with experimental data. Accordingly, the EES used code, have been validated. Furthermore, the gas fired steam power plant efficiency has been increased by the use of irreversibilities reduction and diminution of excess combustion air and/ or the stack-gas temperature. Finally, these have been concluded, overall energy and exergy efficiencies of Tabriz power plant increase 0.497% and 0.46%, respectively when the fraction of excess combustion air decreases from 0.4 to 0.15.Also these efficiencies increase 2.196% nearly when, the stack-gas temperature decreases from 159 to 97 °C. VL - 3 IS - 4 ER -
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