Perancangan Oil Cooling Heat Exchanger Tipe Shell And Tube Dengan Model Two Tube Passes Dan Susunan Staggered Pada PLTMG Kapasitas 3,3 MW

Muzakki Azza, Mochammad Syakir (2025) Perancangan Oil Cooling Heat Exchanger Tipe Shell And Tube Dengan Model Two Tube Passes Dan Susunan Staggered Pada PLTMG Kapasitas 3,3 MW. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 2039211081-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (8MB) | Request a copy

Abstract

Oil Cooling Heat Exchanger merupakan alat penukar panas yang berfungsi untuk menurunkan temperatur oli pelumas yang mengalami kenaikan suhu akibat proses pelumasan pada komponen mesin gas bersuhu tinggi. Pada sistem ini, air demineralisasi berperan sebagai fluida sekunder untuk mendinginkan oli, dan dipompa oleh water pump. Penelitian ini terdiri dari empat tahapan utama. Pertama, penentuan asumsi awal desain berdasarkan standar TEMA (Tubular Exchanger Manufacturers Association) dan kondisi eksisting. Kedua, perhitungan desain heat exchanger tipe shell and tube secara analitis. Ketiga, pengoreksian nilai hasil analitis melalui metode iteratif hingga diperoleh penyimpangan kurang dari 5%. Terakhir, dilakukan validasi menggunakan pendekatan pemodelan termal berbasis rating dan evaluasi performa perpindahan panas.
Hasil perhitungan menunjukkan bahwa heat exchanger yang dirancang memiliki efektivitas perpindahan panas sebesar 88,3% dengan laju perpindahan panas sebesar 309.917,77 W. Desain akhir menggunakan tube berdiameter 0,75 inci (BWG 20) sebanyak 812 buah, shell berdiameter 0,7444 m, dan 24 baffle dengan baffle spacing 0,1903 m. Nilai overall heat transfer coefficient secara analitis diperoleh sebesar 314,21 W/m²·K dengan correction factor sebesar 1,3407% yang dihitung berdasarkan konfigurasi aliran dan rasio suhu masuk-keluar. Hasil validasi menunjukkan nilai koefisien perpindahan panas menyeluruh sebesar 308,24 W/m²·K dengan correction factor sebesar 1,90%. Pressure drop di sisi shell sebesar 0,426 bar dan di sisi tube sebesar 0,196 bar, menunjukkan bahwa sistem memiliki performa perpindahan panas yang efisien dan sesuai dengan kriteria desain.
====================================================================================================================================================================================
Oil Cooling Heat Exchanger is a heat exchanger device that functions to reduce the temperature of lubricating oil, which increases due to the lubrication process in high-temperature gas engine components. In this system, demineralized water acts as the secondary fluid to cool the oil and is pumped from the radiator tank through a water pump. This study consists of four main stages. First, determining the initial design assumptions based on TEMA (Tubular Exchanger Manufacturers Association) standards and existing conditions. Second, performing analytical design calculations of the shell and tube type heat exchanger. Third, correcting the analytical results using an iterative method until a deviation of less than 5% is achieved. Lastly, validation is conducted using a thermal modeling approach based on rating and heat transfer performance evaluation.
The calculation results show that the designed heat exchanger has a heat transfer effectiveness of 88.3% with a heat transfer rate of 309,917.77 W. The final design uses 812 tubes with a diameter of 0.75 inches (BWG 20), a shell diameter of 0.7444 m, and 24 baffles with a baffle spacing of 0.1903 m. The analytically obtained overall heat transfer coefficient is 314.21 W/m²·K, with a correction factor of 1.3407%, calculated based on the flow configuration and inlet-outlet temperature ratio. The validation results indicate an overall heat transfer coefficient of 308.24 W/m²·K with a correction factor of 1.90%. The pressure drop on the shell side is 0.426 bar, and on the tube side is 0.196 bar, indicating that the system has efficient heat transfer performance and meets the design criteria

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Oil Cooling Heat Exchanger, Shell and Tube, Tubular Exchanger Manufacturers Association =========================================================== Oil Cooling Heat Exchanger, Shell and Tube, Tubular Exchanger Manufacturers Association,
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers T Technology > TJ Mechanical engineering and machinery > TJ265.E23 Thermodynamics. T Technology > TJ Mechanical engineering and machinery > TJ935 Pipe--Fluid dynamics. Tubes--Fluid dynamics
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Mochammad Syakir Muzakki Azza
Date Deposited:	31 Jul 2025 07:02
Last Modified:	31 Jul 2025 07:02
URI:	http://repository.its.ac.id/id/eprint/124282

Actions (login required)

View Item