Simulation of water mist spray for commercial kitchen ventilation (CKV) system using Ansys-CFD

Asmuin, Norzelawati and Sies, Mohamad Farid and Hassan, Mohamad Khairi and Pairan, M. R. and Nor Salim, Nor Adrian and Zakaria, Hanis (2014) Simulation of water mist spray for commercial kitchen ventilation (CKV) system using Ansys-CFD. Applied Mechanics and Materials, 660 . pp. 704-708. ISSN 1662-7482

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/AMM.6...

Abstract

The concept of the water mist spray in CKV system is to clean the gas filter at the kitchen hood. This research aims to analyze the behaviour and flow characteristics of water mist spray produced by a spray nozzle. A computational fluid dynamics (CFD) model with k-epsilon turbulence method is a simulation tool for determine the spray characterization. This research was studied on the mist spray development with the different pressure distribution. From the experiment, air pressure 1 bar can develop mist spray with 1.5 bar of water (case 1). For case 2, air pressure was 2 bars and water pressure 2 bars. In case 3 (air pressure 3 bars) can established the mist spray with 3.6 bar of water pressure. The flow of the fluid for case1, case 2 and case 3 have the same pattern type of graph. Changes have been seen in fluid flow pressure and velocity. The value of fluid flow pressure was decreasing from the first point at water inlet until to the last point at nozzle orifice. The total pressure values for case 1, case 2, and case 3 are 99.997 kPa, 199.991 kPa and 299.992 kPa respectively. The highest velocity is recorded at the liquid tip of the nozzle which is about 144.15 m/s for case 3. In the other hand, the highest value of fluid flow pressure was recorded at the water inlet part.

Item Type:Article
Uncontrolled Keywords:mist spray; nozzle; swirl; CFD; commercial kitchen ventilation (CKV)
Subjects:T Technology > TC Hydraulic engineering. Ocean engineering
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
ID Code:6435
Deposited By:Normajihan Abd. Rahman
Deposited On:01 Apr 2015 17:06
Last Modified:01 Apr 2015 17:06

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