Analisis Siklus Rankine Terhadap Variasi Pembebanan pada PLTU Paiton Unit 7 dan 8 PT.POMI

Setiawan, Mochammad Arif (2019) Analisis Siklus Rankine Terhadap Variasi Pembebanan pada PLTU Paiton Unit 7 dan 8 PT.POMI. Diploma thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kebutuhan Listrik dapat berubah-ubah seiring dengan permintaan konsumen maka dari itu pembangkit juga mengalami perubahan beban. Perubahan beban juga mempengaruhi effisiensi dari suatu pembangkit listrik yang berdampak perbandingan antara biaya produksi dengan jumlah produksi yang dihasilkan, Pada Pembangkit Listrik Tenaga Uap (PLTU) variasi beban dilakukan dengan mengontrol laju bahan bakar pada boiler dan laju uap superheated yang menuju turbin sebelum diekspansikan, Tujuan analisis ini agar diketahui pada beban berapa performa PLTU dapat beroperasi secara optimal. Metodologi penelitian yang digunakan dalam menganalisis parameter-parameter yang menunjang performa siklus berdasarkan variasi beban adalah analisis dengan mengabaikan kerugian yang berupa gesekan antara fluida kerja dan peralatan. Analisis ini juga berlaku untuk hukum kekekalan massa dan energi. Dari hasil perhitungan didapatkan bahwa effisiensi siklus naik seiring dengan bertambahnya beban, dan terjadi penurunan ketika pembebanan maksimal yaitu pada beban 100% sebesar 42,27% dengan heat rate 8978,21 kJ/kWh. Effisiensi paling optimal terdapat pada pembebanan 75% sebesar 43,30 dengan heat rate 9291 kJ/kWh, sedangkan pada beban 50% memiliki effisiensi sebesar 41,97% dengan heat rate 9614,75 kJ/kWh.
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Electricity needs can vary with consumer demand, so the plant also has a change in load. The change in load also affects the efficiency of a power plant that impacts the comparison between production costs and the amount of production produced, at the Steam Power Plant (PLTU) The load variation is done by controlling the rate of Fuel on boilers and the superheated vapor rate towards the turbine before expansion, the objective of this analysis is to be known at what load the performance of the PLTU can operate optimally. The research methodology used in analyzing the parameters that support cycle performance based on the variation of the load is analysis by ignoring the loss of friction between work fluid and equipment. This analysis also applies to the law of eternity of mass and energy. From the results of the calculation gained that the efficiency of the cycle rises as the load increases, and there is a decrease when the maximum loading is at a load of 100% by 42.27% with a heat rate of 8978.21 kJ/kWh. The most optimal efficiency is in the 75% loading of 43.30 with a 9291 kJ/kWh heat rate, while at 50% it has an efficiency of 41.97% with a 9614.75 kJ/kWh heat rate.
Keywords : Variation Load, Performance, Steam Turbine

Item Type:	Thesis (Diploma)
Additional Information:	RSMI 621.402 Set a-1 2019
Uncontrolled Keywords:	Variation Load, Performance, Steam Turbine
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 (D4)
Depositing User:	Setiawan Mochammad Arif
Date Deposited:	13 Aug 2026 04:23
Last Modified:	13 Aug 2026 04:23
URI:	http://repository.its.ac.id/id/eprint/69533

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