SIMULASI CYCLE-TEMPO PENGARUH OPERASI HIGH PRESSURE HEATER TERHADAP PERFORMA PEMBANGKIT LISTRIK TENAGA UAP 200 MW PT. PJB GRESIK

ADITYA, RIZKI CANDRA (2016) SIMULASI CYCLE-TEMPO PENGARUH OPERASI HIGH PRESSURE HEATER TERHADAP PERFORMA PEMBANGKIT LISTRIK TENAGA UAP 200 MW PT. PJB GRESIK. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Salah satu jenis pembangkit yang banyak di gunakan adalah pembangkit listrik tenaga uap (PLTU) yang bekerja dengan siklus Rankine. Salah satu produsen listrik yang menggunakan jenis pembangkit listrik tenaga uap adalah PT PJB Unit Pembangkit Gresik Secara umum daya yang dihasilkan pada unit pembangkit 3 PT PJB Gresik rata-rata sebesar 200 MW. Daya tersebut dihasilkan melalui tiga turbin yang dipasang satu poros, yaitu yang terdiri dari HP (High Pressure), IP (Intermediate Pressure),dan LP (Low Pressure). Pada unit pembangkit tiga tersebut digunakan 2 jenis sistem feedwater heater yaitu dengan susunan 7 closed feedwater heater dan 1 open feedwater heater. High pressure heater (HPH) berfungsi untuk meningkatkan temperatur air yang akan dipanaskan di dalam boiler sehingga energi yang dibutuhkan oleh boiler lebih sedikit dibandingkan tanpa HPH. Kondisi HPH sering menghadapi masalah sehingga harus tidak dioperasikan karena mengalami perbaikan. Dalam hal ini diperlukan studi lebih lanjut untuk mengetahui pengaruh operasi HPH terhadap performa pembangkit. Penelitian mengenai pengaruh operasi high pressure heater terhadap performa pembangkit ini dilakukan dengan perhitungan melalui software cycle-tempo. Perhitungan software cycle-tempo dilakukan dengan menggunakan data heat balance dari pembangkit. Pemodelan pembangkit dilakukan didalam software cycle-tempo sehingga dapat dilakukan enam kondisi v variasi terhadap operasi HPH. Variasi 1 kondisi HPH 3 mati, variasi 2 kondisi HPH 2 mati, variasi 3 kondisi HPH 1 mati, variasi 4 kondisi HPH 2 dan 3 mati, variasi 5 kondisi HPH 1 dan 3 mati, variasi 6 kondisi HPH 1 dan 2 mati. Hasil penelitian yang telah didapatkan oleh software cycle-tempo untuk kondisi eksisting adalah daya sebesar 198.879 MW dan efisiensi sebesar 43.541 %. Penelitian ini membandingkan bahwa kondisi pada software cycle-tempo dengan kondisi aktual berbeda dimana daya pada kondisi aktual sebesar 200 MW dan efisiensi sebesar 45.38 % menjelaskan bahwa prosentase losses pada daya sebesar 0.56%. Kondisi eksisting dalam software cycle-tempo ini mempunyai efisiensi tertinggi diantara kondisi variasi yang lain. Hasil dari kondisi variasi yang telah dilakukan melalui software cycle-tempo mendapatkan hasil paling optimal pada kondisi variasi ke tiga dengan daya sebesar 214.517 MW dan efisiensi sebesar 43.457 %. ===================================================================================================== One type of power plant who usually used is the steam power plant (power plant) which works with the Rankine cycle. One of electricity producers that use this type of power plant steam generator unit is PT PJB Gresik. In general, the power generated in the generator unit 3 PT PJB Gresik average of 200 MW. The power generated by three turbines installed in one shaft, which is consists of HP (High Pressure), IP (Intermediate Pressure) and LP (Low Pressure). In the three generating units are used two types of feedwater heater system is by arrangement 7 closed feedwater heater and one open feedwater heater. High pressure heater (HPH) is used to raise the temperature of the water who will be heated in the boiler so that the energy required by the boiler less than without HPH. Condition of HPH often face a problem that should not be operated because of a maintenance. In this case is required further study to determine the effect of HPH operations on plant performance. Research on the effect of high pressure heater operation of the plant performance is done through calculation by software cycle-tempo. Calculations of cycle-tempo is conducted by using data of heat balance of the plant. Plant modeling done in the cycle-tempo so that can be done by six variations of the operating conditions of HPH. Variation number 1 HPH 3 in off vii conditions, variation number 2 HPH 2 in off condition, variation number 3 HPH 1 in off condition, variation number 4 HPH 2 and 3 in off conditions, variation number 5 HPH 1 and 3 in off conditions, variation number 6 HPH 1 and 2in off conditions. Results of research that have been running by the cycle-tempo in existing condition is a power of 198.879 MW and an efficiency of 43.541 %. This study compares that conditions in the cycle-tempo with actual conditions differ on the actual conditions in which the power of 200 MW and an efficiency of 45.38% who explained that the percentage losses in the power of 0.56%. Existing condition in cycle-tempo software has a highest efficiency among other conditions variation. Results of the condition of variation that has been done through cycle-tempo to get optimal results on the condition of variation number 3 with a power of 214.517 MW and an efficiency of 43.457%.

Item Type: Thesis (Undergraduate)
Additional Information: RSM 621.312 132 Adi s
Uncontrolled Keywords: Pengaruh Operasi High Pressure Heater, Performa Pembangkit, Software Cycle-Tempo
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission
T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction
Divisions: Faculty of Industrial Technology > Mechanical Engineering > (S1) Undergraduate Theses
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 17 Jan 2017 03:13
Last Modified: 26 Dec 2018 02:52
URI: http://repository.its.ac.id/id/eprint/1617

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