Yusmady, Mohamed Arifin and Safarudin Ghazali, Herawan and Mohamad Firdaus, Sukri (2013) A Study On Improving Air Circulation In A Confined Space. Project Report. UTeM, Melaka, Malaysia. (Submitted)
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A Study On Improving Air Circulation In A Confined Space 24 Pages.pdf - Submitted Version Download (421kB) |
Abstract
The effectiveness of the natural air ventilation in providing fresh air and cooler environment still need further investigation. This natural system has great potential to minimize the utilization of the air conditioning system and its negative effect to our environment. This study proposed a new method which is the usage of double-layer wall and a prism deflector to improve an air circulation in a confined space. Both experimental and simulation approaches were conducted in this study. In the experimental study, an air circulation apparatus was used to study the effectiveness of a double-layer wall and a prism deflector configuration in improving air circulation in a confined space. By fixing the wall distance with various holes angle of inner wall and the prism deflector ratio, data of air velocity, temperature and humidity obtained in this study were used as indication of air circulation improvement in a confined space. The experimental results show CASE 1 to 3 that used 0° hole angle configuration produced about five times higher air velocity than 45° hole angle configuration. However by considering all cases, CASE 6 with 45 hole angle and prism deflector ratio of 2.0 had the highest overall cooling rate. In the other hand, the simulation test modelled the experimental apparatus and the result obtained from the simulation was analyze by using ANSYS FLUENT 14.0. The parameters that were investigated are wall distance, hole angle and prism deflector ratio. The best parameter configuration obtained in this simulation was CASE 9 with 10 mm distance between walls, 45° hole angle and prism deflector ratio of 2.0. From this study, both experimental and simulation approach obtained a similar conclusion on the best configuration. Thus, it was found that the double-layer wall configuration can be used to promote and improve the air circulation in a confined space. However, there is no significant effect for the prism deflector.
| Item Type: | Final Year Project (Project Report) |
|---|---|
| Uncontrolled Keywords: | Air conditioning -- Equipment and supplies -- Testing, Ventilation -- Equipment and supplies |
| Subjects: | T Technology > T Technology (General) T Technology > TH Building construction |
| Divisions: | Library > Long/ Short Term Research > FKM |
| Depositing User: | Nor Aini Md. Jali |
| Date Deposited: | 03 Nov 2016 23:55 |
| Last Modified: | 03 Nov 2016 23:55 |
| URI: | http://digitalcollection.utem.edu.my/id/eprint/17546 |
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