Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment

In health-care facilities, pharmaceuticals, medical device production, laboratories, semiconductor production and the aerospace clean-room technology is widely implemented. The utility of the clean room allows for a range of benefits. The application is capable of reducing infection rates in heal...

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Main Author:	Faraj, Muneerah ABS
Format:	Thesis
Language:	English
Published:	2019
Subjects:	Ventilation - Equipment and supplies Ventilation Air conditioning
Online Access:	http://psasir.upm.edu.my/id/eprint/84201/1/FK%202019%2084%20-%20ir.pdf
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id	my-upm-ir.84201
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spelling	my-upm-ir.842012022-01-04T02:47:48Z Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment 2019-04 Faraj, Muneerah ABS In health-care facilities, pharmaceuticals, medical device production, laboratories, semiconductor production and the aerospace clean-room technology is widely implemented. The utility of the clean room allows for a range of benefits. The application is capable of reducing infection rates in health-care facilities. Hospital Operation Theatre (OT) are clean rooms which are equipped with sophisticated Heat Ventilation and Air Conditioning (HVAC) systems. HVAC system is functioned to provide Laminar Air Flow (LAF) for optimum cooling inside the OT, provide adequate number of Air Changes per Hour (ACH) and remove the air borne contamination from the surgical site. The main aim of the current work is to effectively test a HVAC system, which can provide adequate cooling with LAF and remove the contamination at the surgical site successfully. To archive the main aim, the CFD study need to validate with previous experimental work. Then parametric study need to be conduct to determine the optimal inlet and outlet configuration inside the OT. Next, the effect of heat load on the optimum airflow configuration need to be investigate using CFD software. Finally, the contamination particles need to be injected inside the optimum airflow configuration and track their movement. The parametric studies have considered various inlet and outlets along with the variation of their positions, thus effectively considering all the scenarios of Horizontal and Vertical LAF. From the result it can be concluded that vertical flow has superior efficiency compare to horizontal flow. Furthermore, the vertical flow has significant impact on the heat distribution inside the OT. Meanwhile, the horizontal flow has minimal impact on the heat distribution. Finally, the GENTRA accurately modeled the skin particles size density at various locations. The removal of the contaminants effectively from the OT shows the selected LAF for the OT works effectively in cooling the OT as well removes contamination. Increasing the contaminant particle size and density by two and three times also didn’t affect the contamination removal, thus the inlet velocity and positive pressure in the OT was enough to carry the contaminants through the outlet vents. Ventilation - Equipment and supplies Ventilation Air conditioning 2019-04 Thesis http://psasir.upm.edu.my/id/eprint/84201/ http://psasir.upm.edu.my/id/eprint/84201/1/FK%202019%2084%20-%20ir.pdf text en public doctoral Universiti Putra Malaysia Ventilation - Equipment and supplies Ventilation Air conditioning Ahmad, Kamarul Arifin
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Ahmad, Kamarul Arifin
topic	Ventilation - Equipment and supplies Ventilation Air conditioning
spellingShingle	Ventilation - Equipment and supplies Ventilation Air conditioning Faraj, Muneerah ABS Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment
description	In health-care facilities, pharmaceuticals, medical device production, laboratories, semiconductor production and the aerospace clean-room technology is widely implemented. The utility of the clean room allows for a range of benefits. The application is capable of reducing infection rates in health-care facilities. Hospital Operation Theatre (OT) are clean rooms which are equipped with sophisticated Heat Ventilation and Air Conditioning (HVAC) systems. HVAC system is functioned to provide Laminar Air Flow (LAF) for optimum cooling inside the OT, provide adequate number of Air Changes per Hour (ACH) and remove the air borne contamination from the surgical site. The main aim of the current work is to effectively test a HVAC system, which can provide adequate cooling with LAF and remove the contamination at the surgical site successfully. To archive the main aim, the CFD study need to validate with previous experimental work. Then parametric study need to be conduct to determine the optimal inlet and outlet configuration inside the OT. Next, the effect of heat load on the optimum airflow configuration need to be investigate using CFD software. Finally, the contamination particles need to be injected inside the optimum airflow configuration and track their movement. The parametric studies have considered various inlet and outlets along with the variation of their positions, thus effectively considering all the scenarios of Horizontal and Vertical LAF. From the result it can be concluded that vertical flow has superior efficiency compare to horizontal flow. Furthermore, the vertical flow has significant impact on the heat distribution inside the OT. Meanwhile, the horizontal flow has minimal impact on the heat distribution. Finally, the GENTRA accurately modeled the skin particles size density at various locations. The removal of the contaminants effectively from the OT shows the selected LAF for the OT works effectively in cooling the OT as well removes contamination. Increasing the contaminant particle size and density by two and three times also didn’t affect the contamination removal, thus the inlet velocity and positive pressure in the OT was enough to carry the contaminants through the outlet vents.
format	Thesis
qualification_level	Doctorate
author	Faraj, Muneerah ABS
author_facet	Faraj, Muneerah ABS
author_sort	Faraj, Muneerah ABS
title	Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment
title_short	Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment
title_full	Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment
title_fullStr	Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment
title_full_unstemmed	Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment
title_sort	computational study of an air ventilation system based on cfd simulation in hospital operation theatre environment
granting_institution	Universiti Putra Malaysia
publishDate	2019
url	http://psasir.upm.edu.my/id/eprint/84201/1/FK%202019%2084%20-%20ir.pdf
_version_	1747813447476707328

Computational study of an air ventilation system based on CFD simulation in hospital operation theatre environment

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