Reducing Air Pollutants in A Kitchen Environment
Keywords:
Range hood, velocity of outlet, CO, CO2, pollutants, kitchenAbstract
Excessive CO2 from a gas stove could cause sick building syndrome. Therefore, it is essential to investigate the distribution and concentration of the CO2 in a kitchen area. The primary goal of this research is to reduce the pollutants in the kitchen environment by examining the effects of airflow velocity and the use of the range hood on the concentration of CO2 and CO gases. A computational fluid dynamics (CFD) method was employed and a grid independent test (GIT) that is providing an accurate solution was used to determine the number of elements. The model was then validated by comparing its result with the experimental data obtained from the literature. The shear stress transport (SST) k-φ model was chosen in the study and it was then simulated considering four cases with different conditions. The best result was then compared with the worst. By changing the conditions of a window, the pollution level can be reduced by 9.35% which was relatively ineffective compared to increasing the velocity of the range hood. By changing the hood’s velocity from 1.88 m/s to 5.22 m/s, the concentration of CO2 can be reduced by 17.09%. Moreover, the installation of a range hood can help the room decreased the CO2 level by 57.33% if compared to the case without the hood. Hence, it can be concluded that the velocity of the range hood is a parameter that is more significant than the conditions of the window. Besides, by changing the velocity of the range hood from the lowest to highest speed, the average concentration of CO in the cooking area has been reduced by 4.56%, while the level of CO in the adjacent room reduced by 8.84%.References
Livchak A., Schrock D. and Sun Z., 2005. The Effect of Supply Air Systems on Kitchen Thermal Environment 2005, ASHRAE Transactions, 111(Part 1): 748-754. 2. Lim K. and Lee C., 2008. A Numerical Study on The Characteristics of Flow Field, Temperature and Concentration Distribution According to Changing The Shape of Separation Plate of Kitchen Hood System, Energy and Buildings, 40(2): 175-184. 3. ASHRAE Handbook 2004: HVAC Systems and Equipment, page 17.9
Yu K.P., Yang K.R., Chen Y.C., Gong J.Y., Chen Y.P. and Shih H.C., 2015. Indoor Air Pollution from Gas Cooking in Five Taiwanese Families, Building and Environment, 93(Part 2): 258-266. 5. Zhang H., Wang F., Wang Y. and Wang H., 2017. CFD Simulation of Cooking Particle Distribution and Motion, Procedia Engineering, 205: 1800-1806. 6. Xu A., Li H., Feng G., 2017. Numerical Simulation Analysis of Temperature and Pollutant Concentration Diffusion in The Open Kitchen Cooking Area, Procedia Engineering, 205: 1165-1172. 7. Zhou B., Chen F., Dong Z. and Nielsen P.V., 2016. Study on Pollution Control in Residential Kitchen Based on The Push-pull Ventilation System, Building and Environment, 107: 99-112. 8. MOUHRD of the PRC, GB/T18049-2000, 2000. Secondary Determination of The PMV and PPD Indices of Thermal Environment and Thermal Comfort Condition of Provision, China Standards Press, Beijing. 9. Lian L.M., 2007. Engineering Thermodynamics, 5th Edition, China Architecture and Building Press, Beijing. 10. Duan R., Liu W., Xu L., Huang Y. and Shen X., 2015. Mesh Type and Number for the CFD Simulations of Air Distribution in an Aircraft Cabin, Numerical Heat Transfer, Part B: Fundamentals, An International Journal of Computation and Methodology, 67(6): 489-506. 11. Li A., Gao M. and Zhang W., 2017. Field Test and CFD Modeling for Flow Characteristics in Central Cooking Exhaust Shaft of A High-rise Residential Building, Energy and Buildings, 147: 210-223. 12. Ferziger J.H., Peric M., 1999. Computational Methods for Fluid Dynamics, Berlin: Springer-Verlag. 13. Roache P.J., 1998. Verification and Validation in Computational Science and Engineering, Albuquerque, NM: Hermosa Publishers.
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