A simplified methodology for the prediction of mean air velocity and particle concentration in isolation rooms with downward ventilation systems

Building and Environment

Volumn 45, Issue 8, 2010, Pages 1847-1853

  Wang, Bing ^a   Zhao, Bin ^a   Chen, Chun ^a  

^a TSINGHUA UNIVERSITY   (China)

Author keywords

Computational fluid dynamics (CFD); Indoor environment; Isolation room; Particle; Similarity theory; Simplified methodology

Indexed keywords

AIR SUPPLY; CFD METHOD; CFD SIMULATIONS; CORRELATING EQUATIONS; ENGINEERING APPLICATIONS; INDOOR ENVIRONMENT; INDOOR PARTICLES; ISOLATION ROOM; MEAN AIR VELOCITY; MULTIPLE LINEAR REGRESSIONS; NUMERICAL TESTS; PARTICLE CONCENTRATION DISTRIBUTION; PARTICLE CONCENTRATIONS; RELATIVE ERRORS; SIMILARITY CRITERIA; SIMILARITY THEORY; VENTILATION SYSTEMS; VOLUME RATE;

CONCENTRATION (PROCESS); FLUID DYNAMICS; FORECASTING; LINEAR REGRESSION; STATISTICAL TESTS; VELOCITY; VENTILATION;

COMPUTATIONAL FLUID DYNAMICS;

COMPUTATIONAL FLUID DYNAMICS; CONCENTRATION (COMPOSITION); FLOW VELOCITY; INDOOR AIR; PARTICULATE MATTER; PREDICTION; VENTILATION;

EID: 77950861160     PISSN: 03601323     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.buildenv.2010.02.015     Document Type: Article

References (23)

1. Hu S.C., Chuah Y.K., Yen M.C. Design and evaluation of a minienvironment for semiconductor manufacture processes. Building and Environment 2002, 37:201-208.
2. Qian H., Li Y., Nielsen P.V., Hyldgaard C.E. Dispersion of exhalation pollutants in a two-bed hospital ward with a downward ventilation system. Building and Environment 2008, 43:344-354.
3. Zhao B., Wu J. Numerical investigation of particle diffusion in clean room. Indoor and Built Environment 2005, 14:469-479.
4. Liu J., Wang H., Wen W. Numerical simulation on a horizontal airflow for airborne particles control in hospital operating room. Building and Environment 2009, 44:2284-2289.
5. Chow W.K., Fung W.Y. Numerical studies on the indoor air flow in the occupied zone of ventilated and air-conditioned space. Building and Environment 1996, 31:319-344.
6. ASHRAE HVAC design manual for hospitals and clinics 2003, American Society of Heating Refrigerating and Air-Conditioning Engineers Inc., Atlanta, GA.
7. CDC Guidelines for environmental infection control in health-care facilities 2003, US Department of Health and Human Services/Public Health Service/Centers for Disease Control and Prevention, Atlanta, GA.
8. ICCS ISO/TC209 standard 1993, USA.
9. Gyenge E.L. Dimensionless numbers and correlating equations for the analysis of the membrane-gas diffusion electrode assembly in polymer electrolyte fuel cells. Journal of Power Sources 2005, 152:105-121.
10. IEST-RP-CC012.1 Considerations in cleanroom design 1998, The Institute of Environmental Sciences and Technology, Rolling Meadows, IL.
11. Austin P.A., Timmerman S.W. Design and operation of clean rooms 1965, Business News Publishing Co, Detroit.
12. Thomas S. Applied dimensional analysis and modeling 2007, Elsevier/Butterworth-Heinemann, Amsterdam/Boston.
13. Choudhury D. Introduction to the renormalization group method and turbulence modeling. Fluent Inc. Technical Memorandum. TM-107 1993.
14. Launder B.E., Spalding D.B. The numerical computation of turbulent flows. Computer Methods in Applied Mechanics and Engineering 1974, 3:269-289.
15. Murakami S., Kato S., Nagano S., Tanaka Y. Diffusion characteristics of airborne particles with gravitational settling in a convection-dominant indoor flow field. ASHRAE Transactions 1992, 98:82-97.
16. ISO 14644-4 Cleanrooms and associated controlled environments part 4: design, construction, and start-up 2001, International Organization for Standardization, Geneva, Switzerland.
17. Fluent Inc. Fluent 6.2 user's guide 2005, Fluent Inc., Lebanon, NH.
18. Richardson L.F. The approximate arithmetical solution by finite differences of physical problems involving differential equations, with an application to the stresses in a masonry dam. Philosophical Transactions of the Royal Society of London 1910, 210(A):307-357.
19. Roache P.J. Perspective: a method for uniform reporting of grid refinement studies. ASME Journal of Fluids Engineering 1994, 116:405-413.
20. Zhao B., Cao L., Li X., Yang X., Huang D. Comparison of indoor environment of a locally concentrated clean room at dynamic and steady status by numerical method. Journal of the IEST 2004, 47:94-100.
21. Higham J.D., Higham J.N. MATLAB guide 2005, Society for Industrial and Applied Mathematics, Philadelphia.
22. Winfield L.L., Inniss R.T., Smith M.D. Structure activity relationship of antiproliferative agents using multiple linear regression. Chemical Biology & Drug Design 2009, 74:309-316.
23. Zhao B., Yang C., Chen C., Feng C., Yang X., Sun L., et al. How many airborne particles emitted from a nurse will reach the breathing zone/body surface of the patient in ISO Class-5 single-bed hospital protective environments? A numerical analysis. Aerosol Science and Technology 2009, 43:990-1005.