Techno-Environmental Analyses and Optimization of a Utility Boiler Based on Real Data

Sajad Koochakinia, Amir Ebrahimi-Moghadam and Mahdi Deymi-Dashtebayaz
Additional contact information
Sajad Koochakinia: Department of Mechanical Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran
Amir Ebrahimi-Moghadam: Mechanical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
Mahdi Deymi-Dashtebayaz: Department of Mechanical Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran

Sustainability, 2022, vol. 14, issue 5, 1-19

Abstract: A numerical simulation for analysis and optimization of the performance and NOx production was applied to a natural gas fuel boiler in South Pars Gas Complex. For this purpose, nine actual environmental and operational parameters of a boiler were measured and recorded every two hours and then averaged daily for a year. Using the thermodynamic laws, important parameters such as body and exhaust flue gas losses, as well as the thermal efficiency and exergy efficiencies of the combustor and boiler, were calculated for each day. The results show that, owing to changes in the environmental and operational conditions, the thermal and exergy efficiency of the boiler varied from 83% to 87% and 27% to 32%, respectively, during the year. In addition, by optimizing the excess air percentage, the thermal and exergy efficiencies could be increased by 1.5% and 3%, respectively, for most days of the year.

Keywords: steam boiler; heat losses; thermal and exergy efficiencies; NOx production; excess air optimization (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/5/2592/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/5/2592/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:5:p:2592-:d:756798

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().