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All Journal Reaktor TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Ekonomi Syariah Teori dan Terapan JTERA (Jurnal Teknologi Rekayasa) Eksakta : Berkala Ilmiah Bidang MIPA TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Jurnal Material dan Energi Indonesia Jurnal Ilmu dan Inovasi Fisika
Setianto Setianto
Departemen Fisika, FMIPA, Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering

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Analysis of Air Preheater Effectiveness using The Number Transfer Unit (NTU) Method Before and After Overhaul of Unit 2 of The West Java Palabuhan Ratu PLTU Fitriyani, Elsa; Nurhilal, Otong; Setianto, Setianto
JIIF (Jurnal Ilmu dan Inovasi Fisika) Vol 10, No 2 (2026)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jiif.v10i2.71545

Abstract

The air preheater (APH) is a heat exchanger component that plays a crucial role in improving boiler combustion efficiency through the reuse of hot exhaust gases. Continuous use of the APH at the Jabar 2 Palabuhan Ratu PLTU can lead to a decline in performance, characterized by reduced heat transfer effectiveness. To restore APH performance, an overhaul was performed, including cleaning and replacing the elements. The analysis was based on actual operating data by comparing pre- and post-overhaul conditions at nearly equivalent loads using the NTU-effectiveness method, as well as calculating the effect of O₂-based air leakage. The results showed that the overhaul improved the APH's performance. Under pre-overhaul conditions with a load of 333.86 MW, the effectiveness value was 85.04%, increasing to 87.72% at a load of 329.75 MW after the overhaul. At a load of 336.98 MW, the effectiveness increased from 85.68% to 87.30% at a load of 346 MW after the overhaul. At a load of 284.33 MW, the effectiveness increased from 85.82% to 87.10% at a load of 282.99 MW after the overhaul. Furthermore, the air leakage value decreased from 13.54% to 11.47% after the overhaul.
Co-Authors A.A. Ketut Agung Cahyawan W Abdurrohman Abdurrohman Andri Abdurrochman, Andri Annisa Aprilia Arif Choerudin Suanda Aswad H.S Aswad H.S Aswad H.S. Aswad Hi Saad Aswad Hi Saad Azka, Muhamad Fauzan B.M Wibawa Bambang Mukti Wibawa Bambang Mukti Wibawa Bambang Mukti Wibawa Bambang Mukti Wibawa Bambang Wijatmoko Budy Santoso Cinan, Sena Patriarka Darmawan Hidayat E Supriyana Faizal, Ferry Fitrilawati Fitrilawati Fitriyani, Elsa Ganjar Nurohman H Mohammad Imran Hilman Mohammad Jajat Yuda Mindara JAJAT YUDA MINDARA, JAJAT K.M Liul K.M. Liu Kuwat T Liu K.M Liu Kin Men Lusi Safriani M F Rosyid M U Hasanah MUHAMMAD ARYA REVANSYAH Nendi Suhendi Nendi Suhendi Nendi Suhendi Syafei Noto Susanto Gultom Otong Nurhilal Pratama, Rendy Putra Ramadzin, Rafly Riszekiya, Egis Sahrul Hidayat Suanda, Arif Choerudin Suhanda, Anda Tika Widiastuti Triamada, David Wahyu Alamsyah WAHYU ALAMSYAH, WAHYU Wibawa, Bambang Mukti