Analisis Termal High Pressure Feed Water Heater Di PLTU PT. Ipmomi Unit 7 Dan 8 Paiton

Damayanti, Maria Ulfa (2016) Analisis Termal High Pressure Feed Water Heater Di PLTU PT. Ipmomi Unit 7 Dan 8 Paiton. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

PT. International Power Mitsui Operation and Maintenance Indonesia (PT. IPMOMI) mengoperasikan tiga unit Pembangkit Listrik Tenaga Uap (PLTU) unit 3, 7 dan 8 berkapasitas 2.030 MegaWatt. Pada PLTU Paiton unit 7 dan 8 terdapat delapan buah feedwater heater yaitu empat buah Low Pressure Water Heater (LPWH), tiga buah High Pressure Water Heater (HPWH), dan sebuah dearator. Pada PLTU Paiton unit 7 dan 8 terdapat kerusakan pada HPWH 6 yang menyebabkan penurunan efisiensi dari siklus secara keseluruhan. Penurunan efisiensi dapat terjadi karena temperatur feedwater sebelum masuk ke boiler terlalu rendah, sehingga kalor yang dibutuhkan oleh boiler untuk memanaskan feedwater meningkat. Oleh karena itu konsumsi batubara akan meningkat dan menyebabkan terjadi kenaikan biaya operasional harian dalam sistem pembangkit. Dari data Divisi Produksi PT. IPMOMI Unit 7 dan 8 diperoleh spesifikasi HPWH 6, 7, dan 8 dan propertis fluida dalam HPWH 6, 7, dan 8. Data tersebut digunakan sebagai dasar analisis termal yang meliputi performa masing-masing HPH. Tahap selanjutnya dalam analisis termal adalah memvariasikan beban 25%, 50%, 75%, 100%, dan 105%. Tahap terakhir analisis adalah menghitung performa dengan variasi sumbatan (plug) 5%, 10%, 15%, dan 20% sesuai dengan variasi beban. ======================================================================================================= PT. International Power Mitsui Operation and Maintenance Indonesia (PT. IPMOMI) operates three units of Steam Power (power plant) units 3, 7 and 8 with a capacity of 2,030 megawatts. At Paiton unit 7 and 8, there are eight feedwater heaters that four of Low Pressure Water Heater (LPH), three High Pressure Water Heater (HPH), and a dearator. At Paiton unit 7 and 8 there is damage to the HPH 6 which causes a decreasing of the efficiency of the overall cycle. The decreasing of the efficiency can occur because the temperature of the feedwater before it enters the boiler is too low, so the heat that be required by the boiler to heat the feedwater increased. Therefore, coal consumption will increase and lead an increasing of daily operating expenses in the generating system. From Production Division Data of PT. IPMOMI Unit 7 and 8, it might be known specification of HPH 6, 7, and 8 and fluid properties in HPH 6, 7, and 8. Those data were used for thermal analysis which covered performance of each HPH. The next step of thermal analysis was to vary load 25%, 50%, 75%, 100%, and 105%. The last step of analysis was to calculate the performance based on plug variations 5%, 10%, 15%, dan 20% corresponding to load variations.

Item Type: Thesis (Undergraduate)
Additional Information: RSM 621.402 5 Dam a
Uncontrolled Keywords: [1] 2014. Statistik PLN 2014. Jakarta: Sekertariat Perusahaan PT PLN (Persero). [2] Incropera, Frank P. Dewitt, David P. Bergman, Theodore L. Lavine, Adrienne S. 2007. Fundamentals of Heat and Mass Transfer. John Wiley & Sons (Asia) PteLtd: Hoboken [3]Moran, Michael J. Shapiro, Howard N. 2005.Fundamentals of Engineering Thermodynamics. John Wiley & Sons Ltd, the Atrium, Shouthern Gate, Chichester, West Sussex PO19 8SQ: England [4] Kakac, Sadic. Liu, Hongtan. 2002. Heat Exchanger Selections, Rating, and Thermal Design. CRC Press LLC, 2000 N. W. Corporate Blvd: Boca Raton, Florida [5] Hussaini, Irfan S., Syed M. Zubair, M.A. Antar. 2006. Area Allocation in multi-zone feedwater heaters. International Journal of Heat and Mass Transfer 49 [6] Febriati, Warida. 2015. Re-Design High Pressure Heater (Hph) 6 Di Pltu Unit 3 Pt. Pembangkitan Jawa-Bali Unit Pembangkitan Gresik Dengan Analisis Termodinamika Dan Perpindahan Panas. Tugas Akhir. Tidak dipublikasikan. Surabaya: Institut Teknologi Sepuluh Nopember [7] Suradika, Dharmaji. 2011. Re-design dan recalculation High Pressure Heater (HPH) 7 PT. PJB UP Paiton pada Zona Desuperheating Menggunakan Analisis Termodinamika dan Perpindahan Panas. Tugas Akhir. Tidak dipublikasikan. Surabaya: Institut Teknologi Sepuluh Nopember
Subjects: T Technology > TD Environmental technology. Sanitary engineering > TD899.S68 Steam power plants
T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers
T Technology > TJ Mechanical engineering and machinery > TJ357 Pressure regulators
Divisions: Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User: Yeni Anita Gonti
Date Deposited: 03 Jun 2020 02:53
Last Modified: 03 Jun 2020 02:53
URI: http://repository.its.ac.id/id/eprint/76064

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