Hostname: page-component-848d4c4894-75dct Total loading time: 0 Render date: 2024-06-09T10:15:55.191Z Has data issue: false hasContentIssue false

The effect of obstructions and thermals in laminar-flow systems

Published online by Cambridge University Press:  15 May 2009

W. Whyte
Affiliation:
Building Services Research Unit, University of Glasgow G12 8RZ
B. H. Shaw
Affiliation:
Building Services Research Unit, University of Glasgow G12 8RZ
Rights & Permissions [Opens in a new window]

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The influence of obstructions and thermals on the air flow in unidirectional or laminar flow systems was studied with special reference to operating rooms. It was shown that thermals induced in the operating rooms would have little influence in the normal laminar-flow system. The importance however of obstructions such as operating lamps and personnel was shown.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1974

References

Blowers, R. & Crew, B. (1960). Ventilation of operating-theatres. Journal of Hygiene 58, 427.Google ScholarPubMed
Carpenter, G. A. & Moulsley, L. J. (1972). A visualisation technique for studying air movement in large enclosures over a wide range of ventilation rates. Journal of the Institution of Heating & Ventilating Engineers 39, 279.Google Scholar
Charnley, J. (1964). Sterile-air operating theatre enclosure. British Journal of Surgery 51, 195.CrossRefGoogle ScholarPubMed
Holder, D. W. & North, R. J. (1963). Schlieren methods. N.P.L. Notes on Applied Science No. 31, H.M.S.O.Google Scholar
Lewis, H. E., Foster, A. R., Mullan, B. J., Cox, R.N. & Clark, R. P. (1969). Aerodynamics of the human microenvironment. Lancet, i, 1273.CrossRefGoogle Scholar
Lidwell, O. M. (1971). Smoke trails and models for the exploration of unidirectional flow ventilation systems. Journal of the Institution of Heating and Ventilating Engineers 39, 131.Google Scholar
Lidwell, O. M., Richards, I. D. G. & Polakoff, S. (1967). Comparison of three ventilating systems in an operating room. Journal of Hygiene 65, 193.CrossRefGoogle Scholar
Report (1962). Design and ventilation of operating-room suites for control of infection and for comfort. Lancet ii, 945.Google Scholar
Report (1972). Ventilation in operation suites. Medical Research Council, London.Google Scholar
Stanley, E. E., Shorter, D. N. & Cousins, P. J. (1964). A laboratory study of the downward displacement system of ventilation in operating theatres. The Heating and Ventilating Research Association, Laboratory Report No. 19.Google Scholar
Whitcomb, J. G. & Clapper, W. E. (1966). Ultraclean operating rooms. American Journal of Surgery 112, 681.CrossRefGoogle Scholar
Whyte, W., Shaw, B. H. & Barnes, R. (1971). An experimental laminar flow operating-room. Lancet ii, 905.CrossRefGoogle Scholar
Whyte, W., Shaw, B. H. & Barnes, R. (1973). A bacteriological evaluation of laminar-flow systems for orthopaedic surgery. Journal of Hygiene 71, 559.CrossRefGoogle ScholarPubMed