ANALISA KEGAGALAN TUBE DRAIN SUPERHEATER PADA HEAT RECOVERY STEAM GENERATOR (HRSG)

WULANDARI, ESTY (2016) ANALISA KEGAGALAN TUBE DRAIN SUPERHEATER PADA HEAT RECOVERY STEAM GENERATOR (HRSG). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

[img]
Preview
Text
2111100074-undergraduate thesis.pdf - Published Version

Download (1MB) | Preview

Abstract

Tube drain superheater merupakan salah satu komponen dari Heat Recovery Steam Generator (HRSG). Komponen ini berfungsi sebagai saluran pembuangan sisa uap basah yang berada dalam heat exchanger sebelum HRSG beroperasi. Terdapat kasus kegagalan tube drain superheater (terkorosi) setelah dua puluh tahun beroperasi berupa kebocoran. Kerusakan ini mengakibatkan tube drain superheater harus diganti dengan yang baru. Kasus kegagalan serupa harus dihindari, sehingga dilakukan penelitian analisa kegagalan pada tube drain superheater. Penelitian diawali dengan observasi lapangan untuk mencari informasi mengenai bentuk dan lokasi kerusakan tube drain superheater. Selanjutnya pengambilan data operasional dan material yang meliputi standar operasional (SOP), historis perawatan serta material tube drain superheater. Observasi pada permukaan dalam dan luar tube drain superheater meliputi pengambilan gambar, pengukuran ketebalan, serta instalasi isolasi untuk mengetahui perubahan fisik yang terjadi akibat kerusakan. Beberapa pengujian dilakukan pada sampel tube drain superheater seperti metalografi untuk memperjelas bentuk kerusakan, serta uji pada kerak menggunakan X-Ray Diffraction supaya diketahui unsur pembentuknya. "=============================================================================================" Abstrak Tube drain superheater is one component of Heat Recovery Steam Generator (HRSG). The function of this component is as a wet steam sewerage which exists inside heat exhanger before HRSG operates. There is a case of failure of tube drain super heater (corrosion case) after twenty years of operation in the form of leakage. This damage has resulted in the replacement of tube drain superheater. In order to avoid this similar case of failure, a research analysis of failure is executed. The research begins with the field observation in order to look for informations about the form and the site of tube drain superheater’s damage. The next is preempting operational and material data including operational standard (SOP), treatment’s histories, and tube drain superheater material. The observation on the inside and outside’s surface of tube drain superheater includes picturing, measuring of thickness, and insulation installation data retrieval to determine the physical changes that occur due to damage. Some testing are done on tube drain superheater samples such as metallographic to clarify the form of damage, as well as tests on the crust using X-Ray Diffraction to find out the forming elements The damage of tube drain superheater does not begin from the inside, indicated by a surface in which there is no defect and is still in the range of operating parameters permit. The hole that assumes with leakage is caused by the decreasing of thickness progressively which begins on the outside’s surface of tube drain superheater in consequence of corrosion. The corrosion is caused by the reaction

Item Type: Thesis (Undergraduate)
Additional Information: RSM 621.194 Wul a
Uncontrolled Keywords: analisa kegagalan, HRSG, korosi, tube drain superheater
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User: Users 13 not found.
Date Deposited: 05 Jan 2017 07:46
Last Modified: 27 Dec 2018 08:37
URI: https://repository.its.ac.id/id/eprint/1340

Actions (login required)

View Item View Item