Experimental Analysis of Controlling Pollutants by the Convergent Jet Air Curtain

Abstract:

In order to solve the problem of ventilation systems and pollution control systems where exist pollutants, taking into account the traditional sealed enclosures or partial enclosures, and other pollutants in exhaust hood to control the collection rate is very low. As the collection rate of the Traditional closed cover and local cover which control pollutants is poor, besides that, the energy consumption is Large, based on The actual needs of field and laboratory, the Prototypes and experimental models of Convergent air curtain generator have been set up. And with them univariate and multivariate orthogonal experiments have also been made. Through a large number of experimental analyses, the most Optimal parameters has been got, and the Theoretical model of Convergent jet air curtain. Based on the experimental and theoretical analysis, with the Case studies and Under the conditions of heat radiation of the convergent flow air curtain jet, Comparing with the static test, it has been found that Convergent air curtain makes the room temperature, dust and pollutant concentration, the concentration of air pollutants and energy consumption have been greatly reduced. The theoretical model and experimental results has some reference value and significance on environmental protection, labor protection and health protection related to protection design.

• Periodical: Advanced Materials Research (Volumes 356-360)
• Pages: 1396-1400
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.356-360.1396
• Online since: October 2011
• Authors: Fa En Shi, Neng Zhu, Kui Xing Liu
• Keywords: Convergent Air Curtain (CAC), Energy Saving Technology, Limited Space Jet, Pollution Control

References

[1] Wang Chuanfu . Proceedings of the Third China-Japan Bilateral Conferenceon Molten Salt Chemistry and Technology[M]. Peking: Peking University Press, (1990).

[2] Learmonth R A. The use of air curtains[J]. ASHRAE Transaction， (9): 115-116.(1970).

[3] Conn, John, W Verakis, Harry C. System design analysis for explosion protection of mine fans[C]// Proceedings of the US Mine Ventilation Symposium, Reno, USA,1993: 463-467.

[4] Albertson M L，Dai Y B，Jensen R A, et al．Diffusion of Sumberged Jets[J]. Tran. ASCE，,115: 1139-1149. (1950)

[5] Rajaratnam N. Turbulent Jets[M]. Amstterdam: Eleservier ,1976.

[6] McGuirk J J , Rodi W．The calculation of Three dimentional Turbulent Free Jets Turbulent Shear Flowl[M]. Durst F F Berlin: Springer, 1979 .

DOI: 10.1007/978-3-642-46395-2_6

[7] Elder J W．The Dispertion of Marked Fluid in Turbulent Shear flows [J]. Fluid Mech,1957,3(67): 1230-1248.

[8] Guyonnaud L, Solliec C. Mass transfer analysis of an air curtain system[C]//2nd International Conference on Advances in Fluid Mechanics, Udine, Italy , 1998: 139-148.

[9] Falin Chen, Shin-Chang Guo, He-Yuan Chuay. Smoke Control of Fires in Subway Stations [J]. Theoretical and Computational Fluid Dynamics, 2003,(5)： 349-368.

DOI: 10.1007/s00162-002-0086-5

[10] Meng Tingrang, Wu Chao. A new technique for roadway dust control in surface mine [J]. Journal of Central South University of Technology,1994,（1）： 149-168.

[11] Wu Chao, Gu De-sheng. Fault tree analysis of dust suppression mechanism in a spray system with wetting agent [J]. Journal of Central South University of Technology,2000,(3):123-128.

DOI: 10.1007/s11771-000-0017-9

[12] Wu Chao, Gu De-sheng. High efficiency dust scrubbers for continuous miner in underground mines [J]. Journal of Central South University of Technology, 2000,（4）：329-338

DOI: 10.1007/s11771-000-0055-3