Equivalent area - Revision history

Designing Buildings at 08:31, 20 February 2025

2025-02-20T08:31:43Z

← Older revision		Revision as of 08:31, 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 equivalent area as: ‘A measure of the aerodynamic performance of an opening. It is the area of a sharp-edged circular orifice through which air would pass at the same volume flow rate, under an identical applied pressure difference, as through the opening under consideration.’		[https://www.gov.uk/government/publications/overheating-approved-document-o Approved Document O: Overheating], published by HM Government in 2021, defines equivalent area as: ‘A measure of the aerodynamic performance of an opening. It is the area of a sharp-edged circular orifice through which air would pass at the same volume flow rate, under an identical applied pressure difference, as through the opening under consideration.’
		+
		+	The equivalent area of a background ventilator is determined at 1Pa pressure difference in accordance with Table 1.7 of Approved document F: Volume 1: Dwellings, 2021 edition.

	See also: Effective area and Discharge coefficients, free, effective and equivalent areas		See also: Effective area and Discharge coefficients, free, effective and equivalent areas

Editor at 07:19, 12 July 2022

2022-07-12T07:19:33Z

← Older revision		Revision as of 07:19, 12 July 2022
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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 equivalent area as: ‘A measure of the aerodynamic performance of an opening. It is the area of a sharp-edged circular orifice through which air would pass at the same volume flow rate, under an identical applied pressure difference, as through the opening under consideration.’		[https://www.gov.uk/government/publications/overheating-approved-document-o Approved Document O: Overheating], published by HM Government in 2021, defines equivalent area as: ‘A measure of the aerodynamic performance of an opening. It is the area of a sharp-edged circular orifice through which air would pass at the same volume flow rate, under an identical applied pressure difference, as through the opening under consideration.’

−	See also: Effective area.	+	See also: Effective area and Discharge coefficients, free, effective and equivalent areas

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =
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	* Background ventilator.		* Background ventilator.
	* Cross ventilation.		* Cross ventilation.
		+	* Discharge coefficients, free, effective and equivalent areas
	* Displacement ventilation.		* Displacement ventilation.
	* Effective area.		* Effective area.
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	* Ventilation.		* Ventilation.
	* Whole building ventilation.		* Whole building ventilation.
		+
		+	Discharge coefficients, free, effective and equivalent areas

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

Designing Buildings at 10:55, 16 December 2021

2021-12-16T10:55:16Z

← Older revision		Revision as of 10:55, 16 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 equivalent area is: ‘…a measure of the aerodynamic performance of a ventilator. It is the area of a sharp-edged circular orifice which air would pass through at the same volume flow rate, under an identical applied pressure difference, as the opening under consideration.’		[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 equivalent area is: ‘…a measure of the aerodynamic performance of a ventilator. It is the area of a sharp-edged circular orifice which air would pass through at the same volume flow rate, under an identical applied pressure difference, as the opening under consideration.’

−	= 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 equivalent area as: ‘A measure of the aerodynamic performance of an opening. It is the area of a sharp-edged circular orifice through which air would pass at the same volume flow rate, under an identical applied pressure difference, as through the opening under consideration.’
		+
		+	See also: Effective area.
		+
		+	= Related articles on Designing Buildings =

	* Air change rates.		* Air change rates.
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	* Cross ventilation.		* Cross ventilation.
	* Displacement ventilation.		* Displacement ventilation.
		+	* Effective area.
	* Free area.		* Free area.
	* Heat recovery ventilation.		* Heat recovery ventilation.

Editor at 19:39, 8 March 2021

2021-03-08T19:39:43Z

← Older revision		Revision as of 19:39, 8 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

2020-06-11T10:17:34Z

← Older revision		Revision as of 10:17, 11 June 2020
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	* Cross ventilation.		* Cross ventilation.
	* Displacement ventilation.		* Displacement ventilation.
		+	* Free area.
	* Heat recovery ventilation.		* Heat recovery ventilation.
	* Mechanical ventilation.		* Mechanical ventilation.
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	* 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..."

2020-06-11T10:14:19Z

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 equivalent area is: ‘…a measure of the aerodynamic performance of a ventilator. It is the area of a sharp-edged circular orifice which air would pass through at the same volume flow rate, under an identical applied pressure difference, as the opening under consideration.’

= Related articles on Designing Buildings Wiki =

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

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