Free area - Revision history

Designing Buildings at 08:35, 20 February 2025

2025-02-20T08:35:53Z

← Older revision		Revision as of 08:35, 20 February 2025
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	[https://www.gov.uk/government/publications/overheating-approved-document-o Approved Document O: Overheating], published by HM Government in 2021, defines free area as: ‘The geometric open area of a ventilation opening. This area assumes a clear sharp-edged orifice that would have a coefficient of discharge (Cd) of 0.62.’		[https://www.gov.uk/government/publications/overheating-approved-document-o Approved Document O: Overheating], published by HM Government in 2021, defines free area as: ‘The geometric open area of a ventilation opening. This area assumes a clear sharp-edged orifice that would have a coefficient of discharge (Cd) of 0.62.’
		+
		+	Approved document F: Volume 1: Dwellings, 2021 edition, defines free area as: ‘The geometric open area of a ventilator.’

	see also Equivalent area and Discharge coefficients, free, effective and equivalent areas		see also Equivalent area and Discharge coefficients, free, effective and equivalent areas

Editor at 07:20, 12 July 2022

2022-07-12T07:20:26Z

← Older revision		Revision as of 07:20, 12 July 2022
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	* Background ventilator.		* Background ventilator.
	* Cross ventilation.		* Cross ventilation.
		+	* Discharge coefficients, free, effective and equivalent areas.
	* Displacement ventilation.		* Displacement ventilation.
	* Equivalent area.		* Equivalent area.

Editor at 07:20, 12 July 2022

2022-07-12T07:20:04Z

← Older revision		Revision as of 07:20, 12 July 2022
Line 2:		Line 2:

	[https://www.gov.uk/government/publications/overheating-approved-document-o Approved Document O: Overheating], published by HM Government in 2021, defines free area as: ‘The geometric open area of a ventilation opening. This area assumes a clear sharp-edged orifice that would have a coefficient of discharge (Cd) of 0.62.’		[https://www.gov.uk/government/publications/overheating-approved-document-o Approved Document O: Overheating], published by HM Government in 2021, defines free area as: ‘The geometric open area of a ventilation opening. This area assumes a clear sharp-edged orifice that would have a coefficient of discharge (Cd) of 0.62.’
		+
		+	see also Equivalent area and Discharge coefficients, free, effective and equivalent areas

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

Designing Buildings at 09:40, 17 December 2021

2021-12-17T09:40:06Z

← Older revision		Revision as of 09:40, 17 December 2021
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	[https://www.gov.uk/government/publications/ventilation-approved-document-f Domestic Ventilation Compliance Guide, 2010 Edition (with 2011 amendments)], published by the Department for Communities and Local Government in July 2011, suggests that the term ‘free area’ refers to: ‘…the geometric open area of a ventilator of terminal.’		[https://www.gov.uk/government/publications/ventilation-approved-document-f Domestic Ventilation Compliance Guide, 2010 Edition (with 2011 amendments)], published by the Department for Communities and Local Government in July 2011, suggests that the term ‘free area’ refers to: ‘…the geometric open area of a ventilator of terminal.’

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	[https://www.gov.uk/government/publications/overheating-approved-document-o Approved Document O: Overheating], published by HM Government in 2021, defines free area as: ‘The geometric open area of a ventilation opening. This area assumes a clear sharp-edged orifice that would have a coefficient of discharge (Cd) of 0.62.’
		+
		+	= Related articles on Designing Buildings =

	* Air change rates.		* Air change rates.

Editor at 19:26, 5 March 2021

2021-03-05T19:26:11Z

← Older revision		Revision as of 19:26, 5 March 2021
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	* Whole building ventilation.		* Whole building ventilation.

−	[[Category:~~Definitions~~]] [[Category:~~DCN_Definition~~]] [[Category:Standards_/_measurements~~]] [[Category:DCN_Standard~~]]	+	[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Standards_/_measurements]]

Designing Buildings at 10:17, 11 June 2020

2020-06-11T10:17:17Z

← Older revision		Revision as of 10:17, 11 June 2020
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−	[https://www.gov.uk/government/publications/ventilation-approved-document-f Domestic Ventilation Compliance Guide, 2010 Edition (with 2011 amendments)], published by the Department for Communities and Local Government in July 2011, suggests that term ‘free area’ refers to: ‘…the geometric open area of a ventilator of terminal.’	+	[https://www.gov.uk/government/publications/ventilation-approved-document-f Domestic Ventilation Compliance Guide, 2010 Edition (with 2011 amendments)], published by the Department for Communities and Local Government in July 2011, suggests that the term ‘free area’ refers to: ‘…the geometric open area of a ventilator of terminal.’

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =
Line 18:		Line 18:
	* Whole building ventilation.		* Whole building ventilation.

−	[[Category:Definitions]] [[Category:Standards_/_measurements]]	+	[[Category:Definitions]] [[Category:DCN_Definition]] [[Category:Standards_/_measurements]] [[Category:DCN_Standard]]

Designing Buildings: Created page with "[https://www.gov.uk/government/publications/ventilation-approved-document-f Domestic Ventilation Compliance Guide, 2010 Edition (with 2011 amendments)], published by the Departme..."

2020-06-11T10:16:51Z

Created page with "[https://www.gov.uk/government/publications/ventilation-approved-document-f Domestic Ventilation Compliance Guide, 2010 Edition (with 2011 amendments)], published by the Departme..."

New page

[https://www.gov.uk/government/publications/ventilation-approved-document-f Domestic Ventilation Compliance Guide, 2010 Edition (with 2011 amendments)], published by the Department for Communities and Local Government in July 2011, suggests that term ‘free area’ refers to: ‘…the geometric open area of a ventilator of terminal.’

= Related articles on Designing Buildings Wiki =

* Air change rates.
* Approved Document F.
* Background ventilator.
* Cross ventilation.
* Displacement ventilation.
* Equivalent area.
* Heat recovery ventilation.
* Mechanical ventilation.
* Natural ventilation.
* Stack effect.
* Thermal comfort.
* Underfloor air distribution.
* Ventilation.
* Whole building ventilation.

[[Category:Definitions]] [[Category:Standards_/_measurements]]