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Flow characteristics study in kitchen hood using Ansys

Pairan, Mohamad Rasidi and Asmuin, Norzelawati and Muni, Z. A. and Kassim, M. H. M. and Sies, Mohamad Farid (2014) Flow characteristics study in kitchen hood using Ansys. Applied Mechanics and Materials, 660. pp. 694-698. ISSN 1662-7482

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Abstract

Commercial kitchen hood ventilation system is a device used to capture and filtered the plumes from cooking activities in the kitchen area. In the recent years, it is very important in an industrial sector such as restaurant and hotel to provide hygiene food. The purpose of this study is to identify flow characteristics in the commercial kitchen hood ventilation system and to observe the effect of capture jet technology. The ANSYS 14.5 (FLUENT) Software is the tool used to simulate the kitchen hood system with capture jet and without capture jet technology. The design model has a dimension of 700 mm width, 1600 mm length and 555 mm height. The comparisons are made between Water Wash/Water Mist kitchen hood with capture jet and without capture jet, in order to observe the effect of the capture jet technology through flow characteristics analysis. Three different cases are tested which are Case A (1.071 m/s), Case B (0.871 m/s) and Case C (0.671 m/s) set at inlet capture jet. Results show that kitchen hood with capture jet technology has improved the flow characteristics in the kitchen hood system which helps to increase the average velocity and control flow in kitchen hood system. Case A with the velocity of 1.071 m/s has the highest average velocity compared to the Case B, 0.871m/s and Case C, 0.671m/s. Overall Case A provided better flow characteristic based on its characteristic of spreading the fresh air in workspace area. The more spreading of fresh air, it will cover more area in kitchen space thus its helps to provide better thermal condition in the kitchen space. It can be conclude that the inlet capture jet velocity plays an important role in order to help the system efficiently vent out the plumes from kitchen area at the same time to provide better Indoor Environmental Quality (IEQ) in kitchen space.

Item Type: Article
Uncontrolled Keywords: commercial kitchen hood; flow characteristics; capture jet technology; kitchen space; CFD
Subjects: T Technology > TH Building construction > TH7005-7699 Heating and ventilation. Air conditioning
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 09 Apr 2015 06:41
Last Modified: 09 Apr 2015 06:41
URI: http://eprints.uthm.edu.my/id/eprint/6407
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