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All Journal Turbo : Jurnal Program Studi Teknik Mesin G-Tech : Jurnal Teknologi Terapan JURNAL SAINS DAN TEKNOLOGI MARITIM
Putra, Mohammad Alexin
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Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Journal : G-Tech : Jurnal Teknologi Terapan

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Redesign of the Aeration Centrifugal Fan Impeller in a Steam Power Plant to Reduce Vibration Issues Almadi, Dadang; Putra, Mohammad Alexin; Hakim, Muhammad Fuad Abdul
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6792

Abstract

The aeration centrifugal fan (ACF) functions to inject pressurized air into the aeration pond containing wastewater from power plant operations. This increases the water's oxygen content before discharge. However, as a rotating device, the ACF often faces high vibration issues, including at a steam power plant in Cilacap Regency. Vibration in this unit exceeded permissible limits. Analysis identified blade pass and surging, linked to the impeller design, as the cause. This indicates the existing impeller was not suited to actual operational conditions. This study aims to redesign the impeller to reduce vibration. The redesign involved increasing the number and width of blades, followed by CFD simulations and vibration testing. Results showed volumetric flow rate and pressure increased from 50,887.1 m³/s to 61,185 m³/s and from 226.9 kPa to 696.3 kPa. Vibration dropped from 19.96 mm/s to 2.916 mm/s (below the 7.1 mm/s limit). Thus, the redesign successfully reduced excessive vibration.
Co-Authors Almadi, Dadang Fajar Sodiq, Fajar Hakim, Muhammad Fuad Abdul Hendri Maja Saputra Otong Nurhilal pamungkas, satriyo Murti Ramadhan, Doni Fajar Ridwan Arief Subekti Ritonga, Muhammad Fachry Sudibyo, Henny Susatyo, Anjar