Aldium, Ath Tholla'u Ahmad (2018) Pengaruh Combustion Inspection, Turbine Inspection, dan Major Inspection Terhadap Unjuk Kerja Turbin Gas Unit 1.2 PLTGU PT. PJB UP Gresik. Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
PT. Pembangkitan Jawa-Bali merupakan salah satu anak perusahaan PT. Perusahaan Listrik Negara yang memliki unit Pembangkit Listrik Tenaga Gas dan Uap, salah satunya berada di Unit Pembangkitan Gresik. PT. PJB UP Gresik memiliki 3 blok Pembangkit Listrik Tenaga Gas dan Uap.Penggunaan unit secara terus menerus akan mengakibatkan penurunan performa pada unit. Oleh karena itu diperlukan Overhaul atau Maintenance yang bertujuan agar performa unit tidak turun drastis. Pada unit turbin gas terdapat beberapa Overhaul yaitu Combustion Inspection, Turbine Inspection, dan Major Inspection. Oleh karena itu, penulis ingin mengetahui bagaimana perngaruh Overhaul terhadap peningkatan ataupun penurunan pada unit turbin gas.
Sebelum dilakukan perhitungan unjuk kerja turbin gas, terkebih dahulu mencari dan menghitung properties tiap titik kemudian didapatkan analisis kerja kompresor, kerja turbin, konsumsi bahan bakar, back work ratio, efisiensi kompresor, efisiensi turbin, dan efisiensi siklus sebelum dan sesudah combustion inspection, turbine inspection dan major inspection.
Setelah dilakukan perhitungan didapatkan hasil efisiensi saat CI 2014 meningkat sebesar 0,42% , TI 2015 meningkat sebesar 0,44% , CI 2016 menurun 0,25% , dan MI 2017 meningkat sebesar 1,05%. Dengan kesimpulan bahwa Major Inspection memiliki pengaruh yang besar terhadap kenaikan efisiensi turbin gas.
======================================================================PT. Pembangkitan Jawa-Bali is a company branch of PT Perusahan Listrik Negara that owns Combined Cycle Power Plant (CCPP) unit. One of this kind is in Unit Pembangkitan Gresik. Pembangkitan Jawa-Bali Unit Pembangkit Gresik has 3 CCPP blocks. Continuous use of this unit leads to a decrease in its performance. Therefore, an Overhaul or Maintenance is required to keep the unit performance from decrease drastically. There are few Overhaul in gas turbine unit; Combustion Inspection, Turbine Inspection, and Major Inspection. The author wants to know the effect of Overhaul on gas turbine unit performance, whether it’s increase or decrease.
Before calculation for gas turbine work be done, first calculate properties each state, then compressor work analysis, turbine work analysis, fuel consumption analysis, back work ratio, compressor efficiency, turbine efficiency, cycle efficiency before and after combustion inspection, turbine inspection, and major inspection.
After all aspect calculated, the result when CI 2014 is increasing with 0,42% , TI 2015 is increasing with 0,44% , MI 2016 is decreasing with 0,25% , and MI 2017 is increasing with 1,05%. And the conclusion is Major Inspection has a major effect on increasing gas turbine efficiency.
| Item Type: | Thesis (Diploma) |
|---|---|
| Additional Information: | RSMI 621.433 Ald p |
| Uncontrolled Keywords: | PLTGU, Combustion Inspection, Turbine Inspection, Major Inspection |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction T Technology > TJ Mechanical engineering and machinery > TJ266 Turbines. Turbomachines (General) |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering |
| Depositing User: | Ath Tholla'u Ahmad Aldium |
| Date Deposited: | 13 Nov 2020 11:42 |
| Last Modified: | 17 Nov 2020 03:59 |
| URI: | http://repository.its.ac.id/id/eprint/58998 |
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