REDESAIN OIL CONTAINMENT SYSTEM PADA TRANSFORMATOR GAS TURBINE (STUDI KASUS : PT. XX)

Asrini, Atik (2016) REDESAIN OIL CONTAINMENT SYSTEM PADA TRANSFORMATOR GAS TURBINE (STUDI KASUS : PT. XX). Diploma thesis, POLITEKNIK PERKAPALAN NEGERI SURABAYA.

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Abstract

ABSTRAK PT.XX merupakan unit pembangkit listrik dengan kapasitas pembangkitan sekitar 760,04 MW. Transformator atau trafo mempunyai peranan penting dalam proses pendistribusian listrik. Agar dapat menjalankan fungsinya dengan baik, transformator dibantu minyak transformator sebagai isolator dan pendingin. PT.XX telah mempunyai oil containment system, tetapi ketika terjadi tumpahan minyak transformator, minyak akan langsung meresap ke dalam tanah. Jadi masalah tersebut dapat diselessaikan dengan redesain oil containment system untuk menjaga tanah dari kontamintasi air dan minyak transformator. Redesain oil containment system meliputi penentuan volume daya tampung minyak transformator dan air yang berasal dari Water Spray System, perhitungan tulangan dan perhitungan kebutuhan tiang pancang. Perhitungan tulangan dan kebutuhan tiang pancang menggunakan SAP 2000 dan perhitungan manual. Setelah itu minyak transformator dan air akan dialirkan ke oil water separator sehingga perlu dilakukan perhitungan perpipaan, daya pompa dan penentuan desain oil water separator tersebut. Berdasarkan hasil redesain, diketahui bahwa debit minyak dan air terbesar ada pada transformator GT2/3 yakni sebesar 122,357 m 3 . Redesain yang akan digunakan adalah oil containment within bunds dengan dimensi terbesar ada pada GT2/3 yakni sebesar 20,4 m x 16,4 x 1,3 m. Dari hasil perhitungan menggunakan SAP dan manual maka diketahui bahwa transformator GT 2/3 menggunakan diameter tulangan untuk tulangan utama dan tulangan bagi yakni D16 150 dan D12 450 dan tulangan oil containment system pada base tulangan utama dan tulangan bagi adalah D16 100 dan D12 450. Kemudian dari perencanaan perpipaan maka dibutuhkan pompa sebesar 1149 HP. Desain oil water separator yang dipilih adalah American Petroleum Institute (API) dengan dimensi 17,5 m x 3,5 m x 2,5m . Kata kunci : oil containment system, SAP 2000, oil water separator, API ABSTRACT PT.XX is a powerplant unit which is a power capacity around of 760,04 MW. Transformer or Trafo has important role in electricity distribution process. in order to work properly based on its function, transformer is helped by transformer oil as insulator and cooler. PT.XX had an oil containment system, but when spiling occur, transformer oil would absorb directly into the ground. So it was necessary to redesign oil containment system to keep water and oil contamination in the ground Redesign of oil containment system consisted of determining capacity volume of transformer oil and water which were by water spray system, and reinforcement and pile requirement calculation. Reinforcement and pile requirement calculation used SAP 2000 and manual method. After that, water and transformer oil would be streamed to oil water separator so that the calculation of piping, pump power and determining oil water separator was needed. Result of this study showed that the highest oil and water volume of transformer GT2/3 was 122,357 m 3. Redesign that would be used was oil containment within bunds with the highest dimension is in GT2/3. the value was 20 m x 16 x 1,3 m. From the calculation result using SAP and manual, it known that transformator GT 2/3 used D16 150 and D12 450 for wall and used D16 100 and D12 450 for base of oil containment system. Then from the piping plan, it required pump that had 1149 HP. Oil water separator design that would be chosen was American Petroleum Institute (API) with dimension 17,5 m x 3,5 m x 2,5 m. Keyword : oil containment system, SAP 2000, oil water separator, API

Item Type: Thesis (Diploma)
Subjects: T Technology > T Technology (General)
Divisions: Teknik Keselamatan dan Kesehatan Kerja
Depositing User: Unnamed user with email repository@ppns.ac.id
Date Deposited: 14 Sep 2018 04:10
Last Modified: 14 Sep 2018 04:10
URI: http://repository.ppns.ac.id/id/eprint/694

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