Laminar Air-Flow Air Conditioning in the Operating Room

1974 ◽  
Vol 53 (2) ◽  
pp. 194???199 ◽  
Author(s):  
KENNETH R. HASLAM
Author(s):  
Enver Yalcin ◽  
Mehmet Ziya Sogut ◽  
Seckin Erdogmus ◽  
Hikmet Karakoc

The laminar flow air-conditioning system with 100% fresh air is used in almost all operating rooms without discrimination in Turkey. The laminar flow device which is working with 100% fresh air should be absolutely used in Type 1A operating rooms. However, there is not mandatory to use of 100% fresh air for Type 1B defined as places performed simpler operation. Compared with recirculating laminar flow, energy needs of the laminar flow with 100 % fresh air has been emerged about 40% more than re-circulated air flow. Therefore, when a recirculating laminar flow device is operated instead of laminar flow system with 100% fresh air in the Type 1B operating room, annual energy consumption will be reduced. In this study, in an operating room with recirculating laminar flow, optimal conditions have been investigated in order to obtain laminar flow form by analyzing velocity distributions at various supply velocities by using computational fluid dynamics method (CFD).


2011 ◽  
Vol 39 (7) ◽  
pp. e25-e29 ◽  
Author(s):  
Magda Diab-Elschahawi ◽  
Jutta Berger ◽  
Alexander Blacky ◽  
Oliver Kimberger ◽  
Ruken Oguz ◽  
...  

2006 ◽  
Vol 64 ◽  
pp. S81 ◽  
Author(s):  
C. Pasquarella ◽  
G.E. Sansebastiano ◽  
R. Albertini ◽  
E. Saccani ◽  
M. Fanti ◽  
...  

2013 ◽  
Vol 28 (9) ◽  
pp. 1482-1485 ◽  
Author(s):  
Eric B. Smith ◽  
Ibrahim J. Raphael ◽  
Mitchell G. Maltenfort ◽  
Sittisak Honsawek ◽  
Kyle Dolan ◽  
...  

2015 ◽  
Vol 77 (30) ◽  
Author(s):  
Haslinda Mohamed Kamar ◽  
Nazri Kamsah ◽  
Wong Keng Yinn ◽  
Md. Nor Musa ◽  
Muhd Suhaimi Deris

In a hospital operating room, adequate air flow and cleanliness are crucial to protect the patient from surgical site infection (SSI) during a procedure. The probability of the patient to get the infection is related to the concentration of bacteria carrying particles inside the room. This paper presents a field measurement study to quantify the concentration of particulate matters (PM) in a hospital operating room which complies with the ISO Class 7 requirements. The operating room was equipped with High Efficiency Particulate Air (HEPA) filters and a vertical laminar air flow (LAF) system. The measurements were conducted at three height levels from the floor namely 1.2 m, 1.8 m and 2.4 m. The data was logged at a rest condition, in accordance to the ISO 14644-1 requirements. A HPC300 particle counter was used to measure the concentrations of particulate matters namely PM0.5, PM1 and PM5. The results show that the concentrations of all particulate matters were higher at the height level of 1.2 m compared to other height levels. The concentration of PM0.5 was relatively higher than PM1 and PM5 in the vicinity of operating table.


2019 ◽  
Vol 20 (2) ◽  
pp. 151-158 ◽  
Author(s):  
Sameer Jain ◽  
Mike Reed

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