Muttaqin, M.Iqbal (2016) Simulasi Combined Cycle Power Plant 500 MW Dengan Mode Konfigurasi Operasi 3-3-1 Sebagai Peak Load Dan Base Load Dengan Menggunakan Software Gatecycle. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pemadaman listrik yang dialami hampir setiap daerah
saat ini disebabkan kekurangan pasokan listrik. Bila hal ini tidak
mendapat perhatian khusus dan upaya terobosan luar biasa,
maka krisis listrik bisa terjadi dalam 3-4 tahun kedepan. Saat ini
total kapasitas terpasang nasional sebesar 50.000 MW yang
dibangun PLN beserta swasta sejak PLN berdiri. Dengan
memperhitungkan proyeksi pertumbuhan ekonomi 6-7% setahun,
dalam lima tahun ke depan dibutuhkan tambahan kapasitas listrik
sebesar 35.000 MW atau 7.000 MW per tahun. Oleh karena itu,
pemerintah tidak memiliki pilihan lain kecuali harus menambah
kapasitas listrik sebesar 35.000 MW. Program kelistrikan ini
menjadi program strategis nasional yang dikukuhkan dalam
dokumen Rencana Pembangunan Jangka Menengah Nasional
2015-2019. Hal inilah yang memperkuat keputusan PT Indonesia
Power untuk mengganti PLTU UBP Perak dengan Pembangkit
Listrik Tenaga Gas dan Uap (PLTGU atau Combined Cycle).
Penelitian ini dilakukan dengan beberapa tahapan awal
yaitu identifikasi kebutuhan listrik nasional, perumusan tujuan
beban puncak dan dasar pembangkit, studi literature dan
observasi lapangan. Sebagai referensi dalam melakukan
tahapan-tahapan umum tersebut, diperlukan pengambilan data
operasi PLTGU Unit Pembakitan Gresik dan spesifikasi turbin gas Mitsubishi M501DA. Data-data tersebut digunakan untuk
membuat pembuatan sistem pada software GateCycle. Setelah
perancangan simulasi dinyatakan convergen dan sesuai dengan
validasi termodinamika, maka akan dilakukan variasi sesuai
dengan output yang diingikan yakni peak load 500MW dan base
load 100MW.
Dari penelitian ini didapatkan bahwa untuk memenuhi
beban puncak 500MW (peak load), pembangkit dioperasikan
dengan konfigurasi 3-3-1 beban 100% dengan konsumsi LHV
bahan bakar sebesar 1005320 kJ/s. Sedangkan pada beban dasar
100MW (base load), pembangkit dioperasikan dengan
konfigurasi 1-1-1 beban 60% dengan konsumsi LHV bahan bakar
sebesar 221292 kJ/s. Pada saat peak load, pembangkit memiliki
efisiensi sebesar 49,73%. Sedangkan pada saat base load,
pembangkit memiliki efisiensi sebesar 45,18%. Berbanding
terbalik dengan heat rate yang bernilai 1728,9 kcal/kWh dan 1903,5 kcal/kWh.
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Power outages experienced in most area these recent
days was caused by power shortage. If it does not get any special
attention and extraordinary breakthrough efforts, the electricity
crisis will occur within 3-4 years. Currently, the national
installed capacity of 50,000 MW have been built by PLN and
private companies since PLN was established. By considering the
projected economic growth of 6-7% per year, it needs additional
power capacity 35,000 MW during next five years (or 7,000 MW
per year). Therefore, the government has no another choice
besides adding35,000 MW of electricity capacity. It becomes
national strategic program which is stated in National Medium-
Term Development Plan period 2015-2019. This is what
reinforces PT Indonesia Power’s decision to replace UBP Perak
steam power plant with gas and steam power plant (or Combined
Cycle Power Plant)..
This research was carried out with some of early stages,
which were identification national electricity needs, explaining
peak and basic load of generator, literature studies and field
observations. As reference in taking those general stages, data
taking of Gresik Power Plant Unit and Mitsubishi gas turbine
M501DA specification were needed. The data was used to build
system at GateCycle software. Once simulation design has been
represented as convergent and compatible with thermodynamics validation, variation which were suitable with expected output (in
which peak load is 500MW and base load is 100MW) will be
carried out.
By this study, it was found that to fulfill peak load
500MW, power plant was operated with configuration 3-3-1 load
100% with LHV fuel consumption 1005320 kJ/S. While with base
load 100MW, power plant was operated with configuration 1-1-1
load 60% with LHV fuel consumption 22192 kJ/S. At peak load,
power plant efficiency was 49.73%, while at base load power
plant got 45.18% of efficiency. Inversely proportional to
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 621.312 1 Mut s |
| Uncontrolled Keywords: | Combined Cycle; Peak Load; Base Load; Efisiensi; Heat Rate; Efficiency |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Anis Wulandari |
| Date Deposited: | 26 May 2017 04:18 |
| Last Modified: | 27 Dec 2018 03:03 |
| URI: | http://repository.its.ac.id/id/eprint/41383 |
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