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Riki Ruli A. Siregar
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Power Plant
Published by Institut Teknologi Perusahaan Listrik Negara
ISSN : 23561513     EISSN : 2656372X     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
The Scientific Journal of "Power Plant" is a collection of scientific works by lecturers, researchers, and practitioners in the field of Mechanical Engineering that have been published since September 2012. This journal is the result of scientific work, research in the fields of Energy, Materials and Energy Conversion to contribute in writing scientific which will be useful for the application of science and technology, especially in the field of Mechanical Engineering.
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Articles 5 Documents
 1 
Search results for , issue "Vol 8 No 2 (2020): JURNAL POWER PLANT" : 5 Documents clear
Analisis Efisiensi Turbin Gas Tipe V94.2 Sebelum Dan Sesudah Minor Inspection Pada Blok 4 Unit 3 Pltgu Muara Tawar Hendri ST MT; Rakha Syammary
JURNAL POWERPLANT Vol 8 No 2 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i2.1077

Abstract

With the development of technological advances that are very rapid and affect the energy needs, especially electrical energy, as well as increasing demand for power plants such as PLTA, PLTU, PLTGU, PLTD, PLTD, PLTP and others must work extra for the convenience and needs of consumers. Therefore, lately it often happens that generators are experiencing problems and make the efficiency of these generators decrease, which can make consumers uncomfortable and the needs of consumers are not met to the maximum. In particular PLTG which consists of several main components, namely compressors, gas turbines, combustion chambers, and generators which in operation use equipment that has been integrated with one another. Therefore here the author tries to calculate and analyze the efficiency of the gas turbine used in the Muara Tawar PLTGU before and after the holding of the Minor Inspection with the Bryton cycle method and from that method will obtain thermal efficiency in the gas turbine. So that the Minor Inspection can actually improve the performance of the Gas Turbine by increasing the actual thermal efficiency. The results of calculations after Minor Inspection thermal efficiency has increased by 0.70%, compressor efficiency has increased 0.56%, combustion chamber efficiency has increased 0.27%, turbine efficiency has increased 1.35%.
Rancang Bangun Turbin Angin Untuk Pembangkit Listrik Hybrid One Pole Energy Roswati Nurhasanah
JURNAL POWERPLANT Vol 8 No 2 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i2.1125

Abstract

Wind energy can be utilized by the potential of electricity by using a wind turbine, so that the electricity raised power is greater than can be combined with the type of solar energy source. So that it can back up each other if the weather is uncertain. HOPE (Hybrid One Pole Energy) is a Hybrid power plant that is designed to exploit the potential of wind and solar energy in the campus area of PLN Jakarta Institute of Technology, from the measurement results obtained that the average wind speed is 3.5 m/s. Wind turbine designed type of wind turbine Horizontal axis, airfoil NACA 4412 type tapperless with the number of Blades 3. Data processing and simulation are done using Qblade v. 0963 software with a maximum wind speed of 12 m/s. The Material used to make this turbine blade is of teak wood. The results of the turbines of a turbine tapperless with 10 segmen, R=0,9 m α = 6o, Cl = 1.63, Cl/Cd = 133,6 and Cr = 0.18 m and Cp = 42%. From the test results acquired average power that can be raised by 25, 1W while HOPE can optimize the raised power of the average reaches 54.7 W.
Pengaruh Debit Terhadap Peforma Boiler Feed Pump (BFP) 1 dan 2 Pada PLTU PT. PLN (Persero) Unit Pelaksana Pembangkitan Ombilin Unit 1 Zendie Eka Nadya Ardanu
JURNAL POWERPLANT Vol 8 No 2 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i2.1255

Abstract

Boiler Feed Pump (BFP) adalah suatu pompa dengan jenis pompa sentrifugal yang berfungsi mengalirkan air demin dari melalui HP heater, economiser daerator menuju ke steam drum. Proses pemompaan PLTU Ombilin memakai motor untuk menggerakkan pompa sentrifugal. Boiler Feed Pump dengan menggunakan motor. Mengetahui peforma Boiler Feed Pump di PLTU Ombilin. Dengan menghitung kapasitas, Head total, Daya pompa, dan Daya pengisi, dan efisiensi. Yang mempengaruhi peforma Boiler Feed Pump yaitu Head , Kavitasi. Solusi untuk manjaga peforma BFP yaitu dengan menjada motor agak bekerja dengan maksimal, dan menjaga Daya pompa agar aliran fluida yang masuk konstan. Dan perawatan berskala terhadap pompa, motor dan fluida pendingin. Dengan garis trendline perbandingan nilai debit dengan head pada BFP 1 kecenderungan turun sebesar 2329,824 m menjadi 2329,101 m dan perbandingan nilai debit dengan head pada BFP 2 kecenderungan naik sebesar 2346,96 m menjadi 2346,079 m. penurunan head disebabkan oleh kebocoran pada pipa, kebutuhan pelumas yang kurang memadai dan mechanical seal mengalami kebocoran, dan ada kemungkinan dari kerja motor yang rendah. Dan garis trendline perbandingan nilai debit dengan efisiensi pada BFP 1 kecenderungan naik sebesar 82,75967 % menjadi 82,78154 % dan pada BFP 2 kecenderungan naik sebesar 82,4829% menjadi 82,5192 %. Bisa disimpulkan bahwa pengaruh debit mempengaruhi peforma BFP menjadi menurun.
Analisis Kegagalan Material Stem Control Valve Desuperheater PLTU 1x660 Mw PT.Lestari Banten Energi Andika Widya Pramono
JURNAL POWERPLANT Vol 8 No 2 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i2.1509

Abstract

Pada boiler terdapat desuperheater yang berfungsi untuk mengontrol temperatur uap yang keluar dari superheater Control valve digerakkan oleh actuator dan minyak hidrolik sebagai penggerak buka tutupnya valve, pada material actuator ditemukan suatu komponen yang mengalami kegagalan material berupa patahnya suatu stem. Untuk mengetahui akar penyebab dan mekanisme kegagalan stem, maka dilakukan studi serta penelitian yang meliputi pengamatan visual dan analisis dari beberapa pengujian seperti pengujian kekerasan, pengujian metalografi guna mengetahui struktur mikro, pengujian fraktografi untuk melihat struktur makro dan pengujian SEM – EDS mapping
Analisis Air Leakage Terhadap Unjuk Kerja Air Preheater A Sebelum Dan Sesudah Overhaul Di Pltu Adipala 1 X 660 Mw PT. PLN (Persero) ERI - PRABOWO
JURNAL POWERPLANT Vol 8 No 2 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i2.1542

Abstract

The efficiency of boilers in steam power plants dependents on the utilization of heat from the exhaust gas by the air heater or the air preheater. To improve the air preheater efficiency can be achieved by increasing performance which is by minimizing leakage on the air preheater so that it will increase the heat transfer rate because the heating element receives heat from the flue gas without reducing the gas flue flow resulting from the leakage increased, so that it will have an impact on increasing the efficiency of the air preheater. The effect of air leakage is not only on the efficiency of the air heater but also on the efficiency of the generator. This is due to the addition of flow from ID fans, FD fans and PA fans which results in wasteful power consumption which reduces plant efficiency. In Central Java PLTU 2 Adipala there is an increase in air leakage because the seals on the air preheater are not properly installed, therefore when overhauled, seal repairs are carried out to reduce water leakage on the air preheater. On the air preheater there are axial seals and radial seals which have the same role of reducing leakage on the air preheater by doing repairs to the seal, it will reduce air leakage which has an impact on increasing the air preheater efficiency and efficiency of the plant. In a steam power plant (PLTU) system, the air preheater has an important role, that is, if there is a decrease in performance it will affect the efficiency of the boiler which will have an impact on the power produced by the power plant, it is necessary to overhaul the air preheater to maintain the reliability of the equipment.

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