Pricandy, Arditya Noor Risky (2017) Pengaruh Variasi Porositas Dan Jenis Material Terhadap Perpindahan Kalor Pada Porous Media Teraliri Udara Panas. Sarjana thesis, Universitas Brawijaya.
Abstract
Salah satu cara untuk meningkatakan laju perpindahan panas ialah pemasangan alatalat thermal. Semakin berkembangnya teknologi, diciptakanlah inovasi alat thermal baru yang dinamakan porous media. Porous media ialah sebuah alat yang memiliki rongga atau pori-pori yang tersebar secara merata, sehingga fluida dapat mengaliri rongga-rongga tersebut. Laju perpindahan panas pada porous media yang baik diakibatkan oleh ronggarongga yang tersebar secara merata tersebut. Distribusi aliran di porous media merata dan kecil kemungkinan terjadinya vortek. Penelitian ini dilakukan secara simulasi menggunakan software FEA. Penelitian ini bertujuan untuk mengetahui pengaruh dari porositas dan jenis material porous media teraliri udara panas terhadap perpindahan kalor yang terjadi. Adapun variasi yang digunakan yaitu variasi porositas 20%, 30%, 38%, 40%, 50% serta jenis material aluminium dan tembaga. Porous media diselimuti dinding kaca bertemperatur 300K serta di bagian bawahnya terdapat plat tembaga bertemperatur 283K. Udara panas bertemperatur 373K dengan kecepatan 2 m/s mengaliri porous media dari inlet menuju outlet yang kemudian diamati perpindahan panasnya. Hasil penelitian yang telah dilakukan secara simulasi menunjukkan bahwa meningkatnya porositas porous media maka perpindahan panas yang terjadi semakin rendah. Perpindahan panas paling rendah ke paling tinggi secara runtut ialah pada porositas 50%, 40%, 38%, 30% dan 20%. Penelitian juga menunjukkan bahwa jenis material porous media dapat mempengaruhi perpindahan panas yang terjadi. Perpindahan panas yang terjadi pada porous media dengan material aluminium lebih rendah daripada porous media dengan material tembaga karena pengaruh konduktivas termal efektif dari masing-masing jenis material berbeda.
English Abstract
One of the ways to increase the rate of heat transfer is the installation of thermal devices. As technology develops, new innovative thermal tools called porous media are created. Porous media is a device that has a cavity or pores that are spread evenly, so the fluid can flow through the cavities. The rate of heat transfer in a good porous medium is due to the uniformly distributed cavities. Distribution of flow in the evenly porous medium and the possibility of vortex occurrence is not really expected. This research was conducted using FEA software simulation. This study aims to determine the effect of porosity and the type of porous media material streamed by heat to the heat transfer that occurs. The used variations are porosity variations of 20%, 30%, 38%, 40%, 50% and the type of aluminum and copper materials. Porous media covered with glass wall with a temperature of 300K and on the bottom there is a copper plate with temperature of 283K. 373K hot air at a speed of 2 m / s streams the porous medium from the inlet to the outlet, in which the heat transfer is observed. The result of the study which has been conducted shows that porousity of porous media is increasing, so the heat transfer that occurs will decrease. The lowest to the highest heat transfer in squence is on the porosity of 50%, 40%, 38%, 30% and 20%. The research also shows that the type of porous media material can affect the heat transfer that occurs. Because of the effective thermal conductivity’s effect from each different material type, the heat transfer that occurs in porous media with aluminum material is lower than porous media with copper material.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2017/858/051708701 |
| Uncontrolled Keywords: | Perpindahan panas, porous media, porositas, aluminium, tembaga. |
| Subjects: | 600 Technology (Applied sciences) > 620 Engineering and allied operations > 620.1 Engineering mechanics and materials > 620.11 Engineering materials > 620.116 Porous materials |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 22 Sep 2017 07:37 |
| Last Modified: | 23 Dec 2020 02:27 |
| URI: | http://repository.ub.ac.id/id/eprint/2859 |
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