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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.
Arjuna Subject : -
Articles 102 Documents
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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.

Page 11 of 11 | Total Record : 102

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