Second law approach in the reduction of gas emission from gas turbine plant

This paper presents second law analytical approach in reducing gaseous emission at gas turbine plant in Geregu, Nigeria. The study analyzed the system's components separately to locate the component with highest exergy destruction ratio for possible improvement. Results show that the combustion...

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Autores principales:	M.N. Eke, P.A. Ozor, V.S. Aigbodion, C. Mbohwa
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Second law analysis Environmental effect Sustainability Efficiency Gas turbine Fuel TP315-360
Acceso en línea:	https://doaj.org/article/bff14f4c54b94b4584e72fa8a898ef49
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spelling	oai:doaj.org-article:bff14f4c54b94b4584e72fa8a898ef492021-11-16T04:11:23ZSecond law approach in the reduction of gas emission from gas turbine plant2666-052010.1016/j.jfueco.2021.100030https://doaj.org/article/bff14f4c54b94b4584e72fa8a898ef492021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666052021000236https://doaj.org/toc/2666-0520This paper presents second law analytical approach in reducing gaseous emission at gas turbine plant in Geregu, Nigeria. The study analyzed the system's components separately to locate the component with highest exergy destruction ratio for possible improvement. Results show that the combustion chamber has highest exergy destruction ratio. Improvements made include increment in: (i) turbine inlet temperature at constant pressure ratio, (ii) combustion chamber pressure ratio at constant turbine inlet temperature, (iii) both turbine inlet temperature and pressure ratio, and changing ambient temperature at power plant location. The multiple criteria for change indicate that the first approach decreased the environmental effect factor by 6.96 % and the sustainability index factor increased by 7.41% as the temperature increased from 1060 – 1080 oC at constant pressure ratio of 11. The second approach reduced the environmental effect factor by 2.74% and increased the sustainability index factor by 2.82% when the pressure ratio rose from 11 to 15. However, simultaneous increments in turbine inlet temperature and pressure ratio by 20oC and 4bar decreased the environmental effect factor further by 8.41%. Thus, raising the sustainability index factor by 9.19%. The results show that changing the ambient temperature from 20°C to 35°C resulted in equal changes in environmental effect factor and sustainability index factor by 0.02%. This work has revealed that gaseous emission from the plant can be reduced by second law analysis. Overall, simultaneous increases in pressure ratio and turbine inlet temperature gave the best result.M.N. EkeP.A. OzorV.S. AigbodionC. MbohwaElsevierarticleSecond law analysisEnvironmental effectSustainabilityEfficiencyGas turbineFuelTP315-360ENFuel Communications, Vol 9, Iss , Pp 100030- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Second law analysis Environmental effect Sustainability Efficiency Gas turbine Fuel TP315-360
spellingShingle	Second law analysis Environmental effect Sustainability Efficiency Gas turbine Fuel TP315-360 M.N. Eke P.A. Ozor V.S. Aigbodion C. Mbohwa Second law approach in the reduction of gas emission from gas turbine plant
description	This paper presents second law analytical approach in reducing gaseous emission at gas turbine plant in Geregu, Nigeria. The study analyzed the system's components separately to locate the component with highest exergy destruction ratio for possible improvement. Results show that the combustion chamber has highest exergy destruction ratio. Improvements made include increment in: (i) turbine inlet temperature at constant pressure ratio, (ii) combustion chamber pressure ratio at constant turbine inlet temperature, (iii) both turbine inlet temperature and pressure ratio, and changing ambient temperature at power plant location. The multiple criteria for change indicate that the first approach decreased the environmental effect factor by 6.96 % and the sustainability index factor increased by 7.41% as the temperature increased from 1060 – 1080 oC at constant pressure ratio of 11. The second approach reduced the environmental effect factor by 2.74% and increased the sustainability index factor by 2.82% when the pressure ratio rose from 11 to 15. However, simultaneous increments in turbine inlet temperature and pressure ratio by 20oC and 4bar decreased the environmental effect factor further by 8.41%. Thus, raising the sustainability index factor by 9.19%. The results show that changing the ambient temperature from 20°C to 35°C resulted in equal changes in environmental effect factor and sustainability index factor by 0.02%. This work has revealed that gaseous emission from the plant can be reduced by second law analysis. Overall, simultaneous increases in pressure ratio and turbine inlet temperature gave the best result.
format	article
author	M.N. Eke P.A. Ozor V.S. Aigbodion C. Mbohwa
author_facet	M.N. Eke P.A. Ozor V.S. Aigbodion C. Mbohwa
author_sort	M.N. Eke
title	Second law approach in the reduction of gas emission from gas turbine plant
title_short	Second law approach in the reduction of gas emission from gas turbine plant
title_full	Second law approach in the reduction of gas emission from gas turbine plant
title_fullStr	Second law approach in the reduction of gas emission from gas turbine plant
title_full_unstemmed	Second law approach in the reduction of gas emission from gas turbine plant
title_sort	second law approach in the reduction of gas emission from gas turbine plant
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/bff14f4c54b94b4584e72fa8a898ef49
work_keys_str_mv	AT mneke secondlawapproachinthereductionofgasemissionfromgasturbineplant AT paozor secondlawapproachinthereductionofgasemissionfromgasturbineplant AT vsaigbodion secondlawapproachinthereductionofgasemissionfromgasturbineplant AT cmbohwa secondlawapproachinthereductionofgasemissionfromgasturbineplant
_version_	1718426750779654144

Second law approach in the reduction of gas emission from gas turbine plant

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