Increasing the Steam Boiler Maintainability Adopted Design Factors
DOI:
https://doi.org/10.56294/sctconf2024819Keywords:
Maintainability, Design Factors, Improvement, Power PlantAbstract
Companies are increasingly compelled to evaluate all dimensions of product performance in order to maintain competitiveness in the face of global market challenges. Maintainability is a crucial aspect of product performance. Maintainability refers to a product's economical and efficient ability to undergo maintenance. Maintenance is necessary for the proper functioning and longevity of several durable items. Adopting maintainability design factors during the first stages of the design process can reduce maintenance expenses, minimize maintenance time, and enhance safety measures. In this paper, the steam boiler is studied and how to improve its maintainability through design factors to make it more maintainable. In order to reduce the time required to perform maintenance and thus reduce the system's downtime and make it available for a longer time, thus increasing production. The case study adopted in this paper is the steam boiler of the thermal power plant in south Baghdad. A study of the steam boiler was conducted, and maintainability was calculated according to the data obtained from the station. A part of the boiler was chosen to improve its maintainability, which is the air heater, as it is the most essential part due to its frequent malfunctions. A study was conducted on the air heater and its parts. The overhead crane was developed by suggestion into an improved design as a tool for accessibility, considered an important design factor for ease of access and handling and, at the same time, for the safety of maintenance workers. This improvement reduced from 24 to 48 hours of repair time for each fault, and the results after calculating the maintainability of the steam boiler after the improvement showed that it increased from 48,5 % to 53,5 %, i.e., an increase of 5 %
References
1. R. F. Stapelberg, Handbook of Reliability, Availability, Maintainability and Safety in Engineering Design. Springer London, 2009. doi:10.1007/978-1-84800-175-6.
2. B. S. Dhillon, Design Reliability: Fundamentals and applications. Edited by C. Carelli, S. Fox , C.R.C. Press, Boca Raton, London, New York, Washington, 1999.
3. L. J. Gullo (Editor), J. Dixon (Editor), Design for Maintainability. John Wiley & Sons Ltd, 2021.
4. A. Coulibaly, R. Houssin, and B. Mutel, “Maintainability and safety indicators at design stage for mechanical products,” Comput. Ind., vol. 59, no. 5, pp. 438–449, May 2008, doi: 10.1016/j.compind.2007.12.006.
5. A. Ebrahimi, “Effect analysis of Reliability, Availability, Maintainability and Safety (RAMS) Parameters in design and operation of Dynamic Positioning (DP) systems in floating offshore structures,” M.S. thesis, Royal Institute of Technology, Oct 2010.
6. V. Mallikarjuna, N. Jashuva, B. Rama, and B. Reddy, “Improving Boiler Efficiency by Using Air Preheater,” Int. J. Adv. Res. Eng. Appl. Sci., vol. 3, no. ISSN: 2278-6252, 2014, [Online]. Available: www.garph.co.uk.
7. X. Jian, S. Cai, and Q. Chen, “A study on the evaluation of product maintainability based on the life cycle theory,” J. Clean. Prod., vol. 141, pp. 481–491, Jan. 2016, doi: 10.1016/j.jclepro.2016.09.073.
8. A. Al-Douri, V. Kazantzi, F. T. Eljack, M. S. Mannan, and M. M. El-Halwagi, “Mitigation of operational failures via an economic framework of reliability, availability, and maintainability (RAM) during conceptual design,” J. Loss Prev. Process Ind., vol. 67, Sep. 2020, doi: 10.101 6/j.jlp.2 020.104261.
9. M. Catelani, L. Ciani, G. Guidi, and G. Patrizi, “Maintainability improvement using allocation methods for railway systems,” ACTA IMEKO, Vol. 9, No. 1,pp. 10-17, ISSN: 2221-870X, March 2020, [Online]. Available:www.imeko. org.
10. X. Luo, Z. Ge, S. G. Zhang, and Y. Yang, “A method for the maintainability evaluation at design stage using maintainability design attributes,” Reliab. Eng. Syst. Saf., vol. 210, Jun. 2021, doi: 10.1016/j.ress.2021.107535.
11. A. Jain, A. Martinetti, and L. Van Dongen, “Improving maintainability of the Battery Storage System in Electric Aircrafts,” 11th International Conference on Through-life Engineering Services – TESConf2022, Cranfield UK, 8-9 November 2022.
12. D. Bai, Q. Yang, J. Zhang, and S. Li, “Process Plant Upgradation Using Reliability, Availability, and Maintainability (RAM) Criteria,” Int. Jou. Opt., vol. 2022, p. 17, 2022, doi: 10.1155/2022/4287346.
13. J. Geng , Z. Gao , Y. Li , Z. He , D. Yu , Z. Wang , and C. Lv., “Proactive and visual approach for product maintainability design,” Adv. Eng. Informatics, vol. 55, Jan. 2023, doi:10.1016/j.aei.2022.101 867.
14. M. Tortorella. Reliability, Maintainability, and Supportability. Edited by A. P. Sage, John Wiley & Sons, Inc., Hoboken, New Jersey in canada , 2015.
15. I. D. Cruz and C. E. Ugalde-Loo, Microgrids and Local Energy Systems, Web of Science™Core Collection(BKCI), 2021, doi:10.5772/intechope n.99740.
16. B. S. Dhillon, Maintainability, maintenance, and reliability for engineers. CRC/Taylor & Francis, 2006.
17. B.S. Dhillon, Engineering Maintainability. Gulf Publishing Company Houston, Texas,1999.
18. “Boiler thermal power plants,” 2017. Information on https://www.slideshare.net/akjshare/boiler -thermalpowerplants-12898051220529phpapp02.
19. R. Pullinger, “The ‘simple’ splice connection,” 2021. Information on https://ideasta tica.uk/the-simple-splice-connection/.
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Copyright (c) 2024 Ban H. Hameed, Luma Al-kindi, Omar Hashim Hassoon (Author)
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