Marpaung, Yerikho Oktapian (2022) Analisis Termodinamika pada Pembangkit Listrik Tenaga Panas Bumi Siklus Single Flash (Studi Kasus Lapangan Panas Bumi Dieng). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini bertujuan untuk melakukan analisa termodinamika pada Pembangkit Listrik Tenaga Bumi (PLTP) Dieng. PLTP ini bekerja dengan siklus single flash steam, dimana fluida panas bumi sebesar 158,6 kg/s masuk ke sistem pembangkit pada temperatur 187 ˚C dengan tekanan 11,75 bar. Penelitian dilakukan dengan menggunakan perangkat lunak HYSYS untuk menganalisa daya keluaran turbin serta melakukan utilisasi pada sistem. Perhitungan teoritis juga dilakukan untuk pendekatan eksergi, untuk mengetahui efesiensi eksergi dan exergy loss pada sistem pembangkit. Data laju alir massa, temperatur, dan tekanan fluida diperoleh dari penelitian sebelumnya, sedangkan properti entalpi dan entropi serta eksergi fluida pada setiap proses dianalisa penulis. Diperoleh bahwa, fluida panas bumi yang masuk ke sistem pembangkit memiliki eksergi sebesar 58.691 kW dan menghasilkan daya keluaran sebesar 27.090 kW. Penurunan tekanan sebesar 3,5 bar pada proses flashing meningkatkan daya turbin sebesar 1% menjadi 27.310 kW. Efisiensi eksergi meningkat dari 46,15% menjadi 46,53%.
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This study aims to analyze the thermodynamics of the Dieng Geothermal Power Plant. Dieng Geothermal Power Plant works with a single flash steam cycle, where 158.6 kg/s geothermal fluid enters the generating system at a temperature of 187 ˚C at a pressure of 11.75 bar. The research was conducted using HYSYS software to analyze the turbine output power and perform system utilization. Theoretical calculations are also carried out for the exergy approach in order to determine the exergy efficiency and exergy loss in the generating system. Parameter of mass flow rate, temperature, and pressure were obtained from previous studies, while the enthalpy and entropy properties and fluid exergy in each process were analyzed by the author. It was found that the geothermal fluid enters the generating system has an exergy of 58,691 kW and produces an output power of 27,090 kW. A pressure drop of 3.5 bar in the flashing process increases the turbine power by 1% to 27,310 kW and increased the exergy efficiency from 46,15% to 46,53%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Single flash steam, exergy, efficiency, single flash steam, eksergi, efisiensi. |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1318 Geothermal Power Plants |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Yerikho Oktapian Marpaung |
| Date Deposited: | 08 Mar 2022 03:59 |
| Last Modified: | 01 Nov 2022 01:21 |
| URI: | http://repository.its.ac.id/id/eprint/94769 |
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