Boiler Efficiency Analysis of A 220mw Steam Power Plant Using Direct Method

Akerekan Opeyemi Ernest and Oyim Akachukwu David
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Akerekan Opeyemi Ernest: Department of Mechanical Engineering, Bells University of Technology Ota, Ogun State, Nigeria.
Oyim Akachukwu David: Department of Mechanical Engineering Technology, Lagos State Polytechnic Ikorodu, Lagos State, Nigeria

International Journal of Research and Scientific Innovation, 2022, vol. 9, issue 8, 111-116

Abstract: This paper presents a boiler efficiency analysis of a 220MW steam power plant using the direct method. The procedure employed to determine the boiler efficiency was done using the input-output method based on ASME PTC 4.1 standard. The experimental data used for the analysis were obtained from boilers installed in Egbin Thermal Power Plant located at Ikorodu, Lagos, Nigeria. Instantaneous data on boiler thermal efficiency can determine the condition of boiler operation, heat generation, and heat loss. It was established that boilers#-1, 2, 4, 5, and 6 have 72.51%, 67.66%, 69.50%, 78.16%, and 79.73% efficiencies respectively, which is an indication of good performance achieved through condition monitoring, combined with routine maintenance. Similarly, boiler#-2 and boiler#-6 have a 1.02 factor of evaporation, which tells that both boilers generate steam at the same rate when 1 kg of natural gas is burnt. In the same way, boiler#-1 and boiler#-4 have a 1.05 factor of evaporation when 1kg of natural gas is burnt to generate 16.13kg and 15.47 kg of steam respectively. Whereas boiler#-5 boiler has a factor of evaporation of 1.08 when 1 kg of natural gas is burnt to generate 17.40 kg of steam. Furthermore, a load factor of the various boilers indicates that each of the boilers can generate 73.31%, 99.32%, 97.05%, 76.16%, and 88.53% of its installed capacity respectively

Date: 2022
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