Numerical Simulation on Mechanical Ventilation for Odor Removal Efficiency in a Bathroom


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This paper numerically studies the effect of ventilation rates and bathroom equipment locations on the odor removal efficiency in a modeled bathroom. Simulation results agree well with previously published experiments such that moving exhaust air vent from ceiling to wall and addition of one supply fan would significantly improve odor removal efficiency. In addition, by doubling the area of exhaust vent under a fixed air change rate, odor removal efficiency (ORE) can be greatly enhanced to 16-30% while previous experiment showed only a moderate 4% increase in ORE when doubled the flow rate of supply air.



Advanced Materials Research (Volumes 243-249)

Edited by:

Chaohe Chen, Yong Huang and Guangfan Li




Y. K. Fuh and W. C. Huang, "Numerical Simulation on Mechanical Ventilation for Odor Removal Efficiency in a Bathroom", Advanced Materials Research, Vols. 243-249, pp. 4877-4882, 2011

Online since:

May 2011




[1] W.S. Dols, A.K. Persily, S.J. Nabinger: IAQ '92, Environments for People (1992), p.85.

[2] K.C. Chung, S.K. Wang: Indoor Environment Vol. 3 (1994), p.149.

[3] M. Sandberg, C. Blomqvist: ASHRAE Transaction Vol. 95 (1989), p.1041.

[4] ASHRAE: fundamental handbooks. Atlanta, GA: American Society of Heating, Refrigerating, Air-Conditioning, Inc. (2005).

[5] K.C. Chung, C.M. Chiang, W.A. Wang: Building and Environment Vol. 32, No. 2(1997), p.149.

[6] Sandberg M. What is ventilation e1ciency? Building and Environment 1981; 16(2): 123–35.

[7] K.C. Chung, S.P. Hsu: Building and Environment Vol. 36 (2001), p.989.

[8] Y.C. Tung, S.C. Hu, T.Y. Tsai: Building and Environment Vol. 44 (2009), p.1810.

[9] NIST Special Publication 1018-5, Fire Dynamics Simulator (Version 5) Technical Reference Guide.

[10] K. Hagstrom, A.M. Zhivov, K. Siren, L.L. Christianson: Building and Environment Vol. 37 (2002), p.55.

[11] H. Qian, Y. Li, P.V. Nielsen, C.E. Hyldgaard, T.W. Wong, A.T.Y. Chwang: Indoor Air Vol. 16 (2006), p.111.

[12] H. Brohus: Personal Exposure to Contaminant Sources in Ventilated Rooms. Ph.D. thesis, Aalborg, Denmark: Department of Building and Structural Engineering, Aalborg University (1997).

[13] W.J. Fisk, D. Faulkner, D. Sullivan, F. Bauman: Indoor Air Vol. 7 (1997), p.55.