Su’udy, Ahmad Hamim (2017) Karakteristik Transport Kalor Pada Sistem Pendingin (Simulasi) Motor Bakar Menggunakan Porous Media. Magister thesis, Universitas Brawijaya.
Abstract
Ilmu pengetahuan dan teknologi terus berinovasi untuk mengatasi masalah sistem pendinginan yang kerap timbul dari panas yang dihasilkan oleh mesin dan bagaimana cara memperbaiki fungsi pendinginan mesin. Akhir akhir ini terus berkembang dalam menangani masalah pendinginan atau transfer kalor, khususnya pada porous media, yang mana sistem media berpori memberikan solusi perpindahan panas dengan media berpori yang mampu meningkatkan perpindahan panas. Dalam study kali ini melihat bagaimana pengaruh variasi porositas pada media berpori dalam transfer kalor pada sistem pendingin engine. Variasi porositas 10%, 15%, 20%, 25%, 30%, perpindahan panas dengan media berpori dapat diterapkan pada sistem pendinginan mesin dengan bantuan simulasi, dikarenakan kerumitan proses ujicoba maka dilakukan pendekatan menggunakan simulasi FEA. Hasil yang didapatkan dari pengaruh porositas terhadap disribusi temperatur ialah semakin besar nilai porositas maka semakin besar pula distribusi temperatur ditiap kolom pantau. semakin besar porositas maka nilai Konduktivitas termal rendah sehingga laju perpindahan panasnya juga rendah. Kemudian semakin besar Porositas maka nilai koefisien perpindahan panas akan semakin rendah. nilai Rayleigh Number (Ra) dan Nusselt Number (Nu) saling berhubungan dimana semakin besar nilai Ra semakin besar pula nilai Nu dalam proses distribusi temperatur pada Porous media.
English Abstract
Science and technology continue to innovate to overcome the problems of cooling systems that often arise from the heat generated by the engine and how to improve the cooling function of the machine. The latter continues to evolve in the problem of cooling or heat transfer, particularly in porous media, where porous media systems provide heat transfer solutions with porous media that increase heat transfer. In this study, we look at how the effect of porosity variation on porous media in heat transfer in engine cooling system. Porosity variations of 10%, 15%, 20%, 25%, 30%, heat transfer with porous media can be applied to the engine cooling system with the help of simulation, due to the complexity of the testing process it is approached using FEA simulation. The result obtained from the effect of porosity on the temperature distribution is the greater the porosity value the greater the temperature distribution in each monitor column. the greater the porosity the thermal conductivity value is low thereby the rate of heat transfer is also low. Then the greater the porosity the value of the heat transfer coefficient will be lower. the value of Rayleigh Number (Ra) and Nusselt Number (Nu) are interconnected whereby the greater the value of Ra the greater the value of Nu in the process of temperature distribution on Porous media.
| Item Type: | Thesis (Magister) |
|---|---|
| Identification Number: | TES/621.402 2/SUU/k/2018/041802268 |
| Uncontrolled Keywords: | HEAT - TRANSFER MEDIA, COOLING SYSTEMS, POROUS MATERIALS |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.4 Prime movers and heat engineering > 621.402 Heat engineering > 621.402 2 Heat transfer |
| Divisions: | S2/S3 > Magister Teknik Mesin, Fakultas Teknik |
| Depositing User: | Nur Cholis |
| Date Deposited: | 21 Dec 2018 07:27 |
| Last Modified: | 21 Oct 2021 02:51 |
| URI: | http://repository.ub.ac.id/id/eprint/162310 |
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