Wisudana, Dion Hendra (2015) Evaluasi Reliability dengan Metode Kuantitatif dan Kualitatif RCFA pada Unit Superheater, Desuperheater dan Exhaust Damper HRSG 3.1 di PT. PJB UP. Gresik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sistem pembangkit listrik terdiri dari beragam komponen yang
memiliki peranan yang sangat penting dalam kelangsungan proses
produksi listrik. Dalam tugas akhir ini dilakukan evaluasi reliability
dengan metode kuantitatif dan kualitatif pada tiga unit penyusun HRSG
plant. Unit tersebut antara lain superheater, desuperheater dan exhaust
damper pada HRSG blok 3.1. Hasil perhitungan kuantitatif pada
masing- masing komponen untuk evaluasi pada waktu bervariasi
terhadap fungsi standar reliability dibawah 0.7 (rekomendasi preventive
maintenance) adalah untuk primary tube superheater saat 5500 jam
operasi memiliki nilai reliability 0.64. Untuk secondary tube
superheater saat 3500 jam operasi memiliki nilai reliability 0.63. Untuk
MOV Inlet superheater saat 7500 jam operasi memiliki nilai reliability
0.68. Untuk nozzle desuperheater saat 2500 jam operasi memiliki nilai
reliability 0.63. Untuk mech.casing desuperheater saat 7000 jam
operasi memiliki nilai reliability 0.69. Untuk TCV desuperheater saat
4500 jam operasi memiliki nilai reliability 0.66. Untuk air barrier fan
exhaust damper saat 4500 jam operasi memiliki nilai reliability 0.68.
Untuk tabung N2 exhaust damper saat 21500 jam operasi memiliki nilai
reliability 0.69. Dan untuk pressure indicator exhaust damper saat 5500
jam operasi memiliki nilai reliability 0.68. Sedangkan nilai
maintainability semua komponen mencapai nilai 1 pada interval 50 –
100 jam perbaikan. Dan untuk availability semua komponen berada
diatas nilai 0.95 yang berarti ketersedian cadangan sudah tersedia
dengan baik saat dibutuhkan. Hasil pendekatan kualitatif didapatkan
hasil akar penyebab kegagalan pada tiap – tiap komponen melalui
metode RCFA.
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Power generation system consists of various components which
have a very important role in the continuity of electricity production
process. In this final task reliability evaluation with quantitative and
qualitative methods in the three constituent units HRSG plant. Units
include superheater, desuperheater and exhaust damper on HRSG 3.1
blocks. The results of the quantitative calculation of each component to
the evaluation of the time-varying reliability standard functions under
0.7 (on preventive maintenance) is for the primary superheater tube
when 5500 hours of operation has a value of 0.64 reliability. For the
secondary superheater tube when 3500 hours of operation has a value
of 0.63 reliability. To MOV Inlet superheater when 7500 hours of
operation has a value of 0.68 reliability. For current desuperheater
nozzle 2500 hours of operation has a value of 0.63 reliability. To
mech.casing desuperheater when 7000 hours of operation has a value of
0.69 reliability. For current desuperheater TCV 4500 hours of operation
has a value of 0.66 reliability. For water barrier exhaust fan damper
when 4500 hours of operation has a value of 0.68 reliability. For N2
tube exhaust damper when 21500 hours of operation has a value of 0.69
reliability. And to pressure indicator exhaust damper when 5500 hours
of operation has a value of 0.68 reliability. While the value of the
maintainability of all the components reach a value of 1 in the interval
50-100 hours of repair. And for the availability of all components above
the value of 0.95, which means the availability of reserves already
available when needed. The results showed qualitative approach the
root causes of failure in each - each component through RCFA method.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSF 621.402 5 Wis e |
| Uncontrolled Keywords: | HRSG, Superheater, Desuperheater, Exhaust Damper, Reliability, RCFA |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 29 Mar 2018 03:54 |
| Last Modified: | 24 Aug 2018 07:35 |
| URI: | http://repository.its.ac.id/id/eprint/51655 |
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