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All Journal Turbo : Jurnal Program Studi Teknik Mesin Journal of Maternity Care and Reproductive Health International Journal of Research in Community Services Journal of Energy, Materials, & Manufacturing Technology balarea
Gugun Gundara
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Humanities Economics, Econometrics & Finance Education Energy Engineering Health Professions Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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STUDY KEGAGALAN AKIBAT KOROSI PADA PIPA ECONOMIZER Acep Wagiman; Gugun Gundara
TURBO [Tulisan Riset Berbasis Online] Vol 6 No 2 (2017): Desember 2017
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v6i2.625

Abstract

Failure analysis to the economizer tube of boiler with operation pressure ± 190 bar, in holding time 6 hour gacor slot have been investigated. The economizer tube is carbon steel, ASTM A210 Grade C, outside diameter ± 51 mm and thickness ± 6 mm. The investigation cause of failure from the economizer tube included : chemical composition and metallography analysis, visual examination at outer and inner fire side, measuring thickness and densities of the scale at inner fire side and wall side, chemical composition analysis of the at surface crust the economizer tube. From the results of visual investigation to both outer and inner fire side of the economizer tube shown that at fire side occur decrease thickness gacor slot of the wall tube, with minimum thickness are 1.37 mm and 2,50 mm, respectively. Those caused by erosion corrosion result from effect the fly ash. Beside that, at inner fire side of the gacor slot economizer tube occur light pitting corrosion result by oxygen corrosion.Keywords : Economizer tube, boiler, fire side, fly ash, erosion corrosion, pitting corrosion, scale, oxygen
Co-Authors Aceng Sambas Acep Wagiman Ade Kurniawati Agus Riyana Doni Saputra Bayu Brahmantia Firman Fauzi Rachman Firqah Najiyah, Ghinfa Hafizh Syamputra, Muhamad Heri Budiawan Ida Rosidawati Kamaludin, Muhamad Kamaludin Muhammad Kamaludin Mujiarto Mujiarto najiyyah, Ghinfa firqoh Neni Nuraeni Pratama, Dimas Fandi Siswahyudianto Sri Ayu Fujilestari Syamputra, Muhammad Hafiz Yuyun Solihatin