Pengaruh Overhaul Terhadap Kinerja High Pressure Heater Unit 3 PLTU Banten Lontar
DOI:
https://doi.org/10.58466/drv17368Keywords:
high pressure heater; overhaul; performance; LMTD; effectivenessAbstract
This study analyzes the effect of overhaul on the performance of High Pressure Heater (HPH) 1,2, and 3 in unit 3 of PLTU Banten 3 Lontar at a constant load of 294 MW. The analysis used actual operational data before overhaul (July 2018) and after overhaul (December 2018). Heater Performance was evaluated using terminal temperature difference (TTD), drain cooler approach (DCA), temperature rise (TR), logarithmic mean temperature difference (LMTD), Capacity heat ratio (C), and thermal effectiveness. The result show that overhaul generally improved HPH performance. The strongest improvement occured HPH 1, where DCA decreased from 26.68 celcius to 4.38 celcius, LMTD decreased from 42.81 celcius to 20.62 celcius, and effectiveness increased from 0.72 to 0.95. HPH 2 showed the only TTD improvement from 0.79 celcius to 0.66 celcius, while HPH 1 and HPH 3 experienced slightly higher TTD after overhaul. Even so, the consistent decline in effectiveness for all heaters indicate that tube cleaning, leakage testing, tube plugging, and gasket replacement restored heat transfer performance. Therefore, overhaul is an effective maintenance action to improve HPH thermal performance with the most significant impact observed in HPH 1
Downloads
References
[1] Budiman A, Syarief A, Isworo H. Analisis perpindahan panas dan efisiensi efektif High Pressure Heater (HPH) di PLTU Asam-Asam. J Ilm Tek Mesin Unlam. 2014;3(2):76-82.
[2] Junsupratyo R, Sappu FP, Lakat AMA. Analisis efisiensi efektif High Pressure Heater (HPH) tipe vertikal U-shape di Pembangkit Listrik Tenaga Uap Amurang Unit 1. Jurusan Teknik Mesin Universitas Sam Ratulangi. 2017;7:37-45.
[3] Gahana D, Alfian C, Supriyadi D, Li M. Analisis kinerja High Pressure Heater (HPH) tipe shell and tube heat exchanger. J Sci Appl Technol. 2018;2(2):23-33.
[4] Hidayat WR. Analisis perpindahan kalor High Pressure Heater PLTU Banten 3 Lontar Unit 1. 2016.
[5] Cengel YA. Heat Transfer: A Practical Approach. 2nd ed. New York: McGraw-Hill; 2018.
[6] Argaputra RR. Analisis perpindahan panas pada multipass shell and tube heat exchanger berdasarkan Number of Transfer Unit (NTU). 2017.
[7] Suardjaja IM, Junaidi D, Rohmat TA. Kesetimbangan massa dan kalor serta efisiensi pembangkitan listrik tenaga uap pada berbagai perubahan beban dengan memvariasikan jumlah feedwater heater. Prosiding Seminar Nasional VI. 2010:413-422.
[8] Megadwiwan. Feedwater heater. J Ilm Teknik Mesin Polban. 2011.
[9] Poernomo H. Pembuatan alat monitoring mesin penukar panas (heat exchanger) untuk menganalisis unjuk kerja dan karakteristiknya. Teknik Permesinan Kapal. 2013;10(3):164-174.
[10] Prabowo, Eri -. "Analisis Air Leakage terhadap Unjuk Kerja Air Preheater A Sebelum dan Sesudah Overhaul di Pltu Adipala 1 X 660 Mw PT. PLN (Persero)." Power Plant, vol. 8, no. 2, 2020, doi:10.33322/powerplant.v8i2.1542
