ANALISA TEGANGAN PIPA PADA SISTEM PERPIPAAN REBOILED CONDENSAT DRUM MENUJU CONDENSATE STABILIZER

MUHAMMAD SURURI, FIBRI BAHTIAR (2020) ANALISA TEGANGAN PIPA PADA SISTEM PERPIPAAN REBOILED CONDENSAT DRUM MENUJU CONDENSATE STABILIZER. S1 thesis, Universitas Mercu Buana Jakarta.

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Abstract

The process of heating fluid in a reboiled condensate drum using an electric heater will produce a fluid gas. Gas fluid will flow towards the Condensate Stabilizer. The piping system from the Reboiled Condensate drum to the Condensate Stabilizer occurs at an operating temperature of 244.7 oC and a design temperature of 267.44 oC. During operation the piping system will receive a load, which results in the occurrence of pipe stress along the piping system. Stress analysis is carried out at a sustained load, with consist of axial stress, bending stress, circumferential stress, and load analysis is carried out on sustained load, occasional load and thermal expansion load. Manual calculation analysis using simple beam formula and Caesar II software with a pipe thickness of 5.49 m and distance between supports 2.5 m. The results of manual calculations of 45293 kN / m2 and Casear II software of 40554 kN/m2 occurred in the thermal expansion load does not exceed the allowable stress based on ASME Code B31.3 which is worth 330568 kN / m2 so that it is declared safe Keywords: Reboiled Condensate Drum, Condensate Sabilizer, sustained load, thermal expansion, ASME Code B31.3, Caesar II software Proses pemanasan fluida cair pada reboiled condensate drum menggunakan elektrical heater akan menghasilkan fluida gas. Fluida gas mengalir menuju Condensate Stabilizer. Sistem perpipaan dari Reboiled Condensate drum menuju Condensate Stabilizer terjadi pada temperatur operasi 244,7 oC dan temperatur desain 267,44 oC. Selama operasinya sistem perpipaan akan menerima beban (load), yang mengakibatkan terjadinya tegangan pipa di sepanjang sistem perpipaan tersebut. Analisa tegangan dilakukan beban tetap (sustained load) yang terdiri dari axial stress, bending stress, circumferential stress, dan analisa beban dilakukan pada sustained load, occasional load dan thermal expansion load. Analisa perhitungan manual menggunakan simple beam formula dan software Caesar II bertujuan untuk mengetahui jarak pipe support maksimum yang dioerbolehkan, nilai tegangan dan beban sistem perpipaan tidak melebihi nilai allowable stress berdasarkan ASME Code B31.3, sehingga sistem perpipaan dapat dikatakan aman ketika beroprasi. Hasil perhitungan manual sebesar 45293 kN/m2 dan software Casear II sebesar 40554 kN/m2 terjadi pada pembebana thermal expansion load yang merupakan tegangan atau beban tertinggi pada sistem perpipaan. Hasil tersebut tidak melebihi allowable stress berdasarkan ASME Code B31.3 yang bernilai 330568 kN/m2 . Kata Kunci: Reboiled Condensate Drum, Condensate Sabilizer, tegangan sustained, thermal expansion load, ASME Code B31.3, software Caesar II

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