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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.
Arjuna Subject : -
Articles 102 Documents
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Pengaruh Perlakuan Panas Karburisasi Austempering Pada Baja Laterit Modifikasi Paduan Ni-Cr Terhadap Sifat Mekanik Dan Struktur Mikro Satrio Herbirowo
JURNAL POWERPLANT Vol 7 No 2 (2019): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v7i1.719

Abstract

Laterite steel is a steel with a low nickel content which is between 1 - 4.5 percent. Generally, the nickel content in laterite steel which was tried to be developed by LIPI ranged from 1.5 to 4.5 percent. The type of laterite steel developed from laterite ore is NPI (Nickel Pig Iron), a type of cast iron that has a high hardness value and optimal toughness. This material is widely used for grinding balls or Hard-Liner materials for crusher or grinder equipment. In the research of the heat treatment process, Carburization of Austempering uses laterite steel with Ni and Ni-Cr alloys. Where this study uses parameters of heating temperature in the Austenisasi temperature of 950 ºC and Austempering temperature of 400 ºC with the same holding time of 1 hour. In this study also used a variation of cooling media (quenching), namely angina fan, water and left in the furnace. Laterite steel which has been processed by carburization Austempering will be tested by testing hardness, impact, metallography. From the test results obtained test data where, the highest value of hardness is found in steel sample 2 (Ni-Cr), which cooling using a fan with a value of 63.6 HRC with the phase produced martensite. And the highest impact value is found in the sample steel 3 (Ni) which cools in the furnace with an impact value of 38J and the phase formed is bainite.
Analisis Pengaruh Laju Kalor Kondensor HTC terhadap Kinerja Sistem Refrigerasi Cascade Dengan Refrigerant Hidrokarbon Hendri Hendri; Suhengki Suhengki; Roswati Nurhasanah; Prayudi Prayudi
JURNAL POWERPLANT Vol 7 No 2 (2019): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v7i2.978

Abstract

The need for low temperature storage rooms has not been fulfilled with a single refrigeration system. The problem with a single system is that vacuum pressure is needed to reach very low temperatures. The cascade refrigeration system with two HTC and LTC circuits was developed to answer the problem of low temperature space with hydrocarbon refrigerant. The research was carried out experimentally in the PLN IT Refrigeration System Laboratory. This research uses MC134-R404A and MC22-R404A refrigerant pairs, and uses a heat exchanger plate heat exchanger. From the analysis it was found that the MC22-R404A refrigerant pair had better performance COP, HRR, ratio mass than the MC134-R404A. From the research also obtained the results that the installed heat exchanger cannot work optimally. The results of this study will be very useful for developing further research in developing low temperature storage
Uji Prestasi dan Emisi Diesel Berbahan Bakar Minyak Nabati Murni Untuk Pembangkitan Daya Di Daerah Terpencil Roswati Nurhasanah; Arisma Chairulah
JURNAL POWERPLANT Vol 8 No 1 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i1.147

Abstract

Pure Plant Oil (PPO) such as Pure Coconut Oil (PCO) and Pure Palm Oil (PPaO) could be a solution for electricity problem in remote areas in Indonesia. PCO and PPaO can be used as a fuel for diesel engine to produce electricity. This paper will compare and analyze the performance and emissions of the diesel power plant fueled with diesel fuel, PCO, and PPaO. For performance parameter, brake specific fuel consumption and thermal efficiency of diesel engine by using PPaO and PCO are higher than the diesel fuel, but the brake specific energy consumption are lower than the diesel fuel. That means diesel engine will be more efficient and have lower operational cost by using PPaO and PCO. For the emission parameters, CO2, CO, and CH emissions from PPaO and PCO are higher compared to diesel fuel. That means PPO have higher carbon emission than just using conventional diesel fuel. But, there are highly significant difference of less NOX emissions by using PCO and PPaO compared to the diesel fuel. That means it will be better using PPO because diesel engine has lack of high NOX emissions. These differences of diesel engine performance and emissions by PPaO, PCO, and diesel fuel are caused by the fuel characteristic differences such as cetane number, calorific value, and viscosity.
Analisis Perubahan Tekanan Vakum Kondensor Terhadap Kerja Turbin Dan Produksi Listrik PLTU Unit 1 Sebalang Menggunakan Simulasi Cycle Tempo sudirmanto sudirmanto dirmanto; Alvian Reza Effendi
JURNAL POWERPLANT Vol 8 No 1 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i1.1047

Abstract

PLN (Persero) Sebalang Generation Sector has 2 units of Steam Power Plants with a capacity of 100 MW each. Based on the design, the unit 1 of the Sebalang power plant has a vacuum pressure of 690 mmHg or -92 kPa. The condenser vacuum pressure of unit 1 Sebalang PLTU experienced a vacuum pressure decrease of 7 kPa on the operating date 16 November 2016. No analysis of the vacuum effect of the condenser on the turbine work and the total electricity production at Sebalang PLTU unit 1. The study aimed to analyze the effect of vacuum pressure reduction condenser for turbine work and cycle efficiency and total electricity production at PT. PLN (Persero) Sebalang Generation Sector especially in unit 1 uses the Tempo Cycle application. The results obtained Each average condenser vacuum pressure decrease of 1 kPa resulted in a decrease in turbine work by 2,315 kW, cycle thermal efficiency decreased by 1.27% and total electricity production decreased by 77,783,324.93 kWh. PLN (Persero) Sektor Pembangkit Sebalang memiliki 2 unit Pembangkit Listrik Tenaga Uap dengan kapasitas masing-masing100MW . Berdasarkan desain pembangkit listrik Sebalang unit 1 memiliki tekanan vakum 690 mmHg atau -92 kPa. Pada tanggal 16 November 2016 tekanan vakum kondensor unit 1 PLTU Sebalang mengalami penurunan tekanan sebesar 7 kPa. Belum ada analisisa efek vakum dari kondensor pada unjuk kerja turbin dan total produksi listrik di PLTU Sebalang unit 1. Penelitian bertujuan untuk menganalisis pengaruh penurunan tekanan kondensor terhadap unjuk kerja turbin dan efisiensi siklus serta total produksi listrik di PT. PLN (Persero) Sektor Pembangkitan Sebalang khususnya di unit 1 dengan menggunakan aplikasi Siklus Tempo. Hasil yang diperoleh bahwa setiap tekanan vakum kondensor turun sebesar 1 kPa mengakibatkan penurunan unjuk kerja turbin sebesar 2.315 kW, efisiensi siklus termal menurun sebesar 1,27% dan total produksi listrik menurun sebesar 77.783.324,93 kWh.
Analisis Energi dan Eksergi Pembangkit Listrik Tenaga Gas-Uap Blok 1 Unit Pembangkitan Gresik Henry Pariaman; Arif Kurniawan Putra
JURNAL POWERPLANT Vol 8 No 1 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i1.1048

Abstract

Penelitian ini tentang menganalisis efisiensi energi dan efisiensi eksergi pada Pembangkit Listrik Tenaga Gas Uap. Salah satu metode analisis yang digunakan untuk mengetahui energi yang berada dalam suatu sistem pembangkit ada dua, yaitu metode analisis energi dan analisis eksergi. Dalam analisis energi dapat diketahui efisiensi termal dari suatu pembangkit tetapi tidak dapat mengetahui besar kerugian sistem tersebut. Pada PLTGU Gresik, sudah ada yang melakukan penelitian tentang efisiensi termal dari PLTGU Gresik tetapi belum ada yang melakukan perhitungan eksergi untuk konfigurasi 3-3-1 pembangkit sehingga perlu dilakukan penelitian ini. Perhitungan yang dilakukan penulis menggunakan hasil data performance test agar mendapatkan hasil yang maksimal. Dalam perhitungan didapat bahwa PLTGU Gresik blok 1 memiliki efisiensi termal 59,37% dan efisiensi eksergi 52,82%.
Pengaruh Overhaul Terhadap Efektifitas Kondensor Di PT. Indonesia Power Up Suralaya Unit III Halim Rusjdi; Achmad Ghozali; Nofirman Nofirman
JURNAL POWERPLANT Vol 8 No 1 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i1.1062

Abstract

In the power plant there are important component, it is condenser. A condenser has function to condense LP turbine exhaust vapor foe condensation.This time the author this time only includes calculations,to find out the total heat transfer using the log mean temperature Difference (LMTD) Method and Number Of Transfer Unit(NTU) in condenser unit III. Inthis research method the author can describe the heat transfer in the condenser what happens before andafter overhaul. It is expected that the resultsof the condition after overhaul must be better than before the overhau.The value of the condenser efficiency calculation of the effectiveness before and after overhaul experienced the highest increase on day 4 from 65.6% to 73.5% increase in condenser efficiency of 7.83%.
Pengaruh Proses Tempa Dingin Terhadap Sifat Mekanik Dan Struktur Mikro Baja Karbon Tinggi Dengan Paduan Rendah 1.92%C-0.73%Cr-2%Ni Berbasis Laterit Untuk Aplikasi Grinding Ball bill rewata
JURNAL POWERPLANT Vol 8 No 1 (2020): JURNAL POWER PLANT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/powerplant.v8i1.1075

Abstract

The development of Indonesia's steel industry is still constrained by the limitations of rawmaterials and energy. In terms of raw materials, Indonesia does not have high levels of ironore in sufficient quantities. The limitation of iron ore will be overcome by the use of lateriteiron (nickel) ore. When melted into steel, this type of ore will produce steel with a nickel contentbetween 2-3%. A number promises the emergence of superior traits, especially for producinghigh strength steel which is very much needed in the construction of infrastructure in Indonesia.The addition of chromium to laterite steel aims to increase strength, hardness, suppleness,wear resistance to rust and acid. Going through the forging process can also cause graindistortion and increase strength and hardness, improve ability. The availability of naturalresources makes laterite ore a potential as a basis for independence to meet national steelneeds. By carrying out hard tests, wear resistance tests, micro tests can be known themechanical properties of Cr-Ni laterite steel.
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.

Page 10 of 11 | Total Record : 102

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