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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=Powered_flow_hood</id>
		<title>Powered flow hood - Revision history</title>
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		<updated>2026-05-22T22:53:37Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Powered_flow_hood&amp;diff=267771&amp;oldid=prev</id>
		<title>Designing Buildings: Created page with &quot;[https://www.bsria.com/uk/product/qB4YRr/commissioning_air_systems_bg_492015_a15d25e1/ Commissioning Air Systems (BG 49/2015)], written by Chris Parsloe and published by BSRIA in...&quot;</title>
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				<updated>2024-01-04T08:33:41Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;[https://www.bsria.com/uk/product/qB4YRr/commissioning_air_systems_bg_492015_a15d25e1/ Commissioning Air Systems (BG 49/2015)], written by Chris Parsloe and published by BSRIA in...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[https://www.bsria.com/uk/product/qB4YRr/commissioning_air_systems_bg_492015_a15d25e1/ Commissioning Air Systems (BG 49/2015)], written by Chris Parsloe and published by BSRIA in March 2015, explains how to commission ducted air distribution systems in buildings. It was originally published in 2013 and was then updated in 2015.&lt;br /&gt;
&lt;br /&gt;
It states: ‘Powered flow hoods are designed to minimise back pressure and turbulent flow effects. The instrument incorporates a fan which rotates at a controlled speed to achieve a zero pressure balance in the hood itself. As soon as the zero pressure state is achieved the instrument displays the corresponding flow rate.’&lt;br /&gt;
&lt;br /&gt;
--[[User:BSRIA|BSRIA]]&lt;br /&gt;
&lt;br /&gt;
= Related articles on Designing Buildings =&lt;br /&gt;
&lt;br /&gt;
* Air capture hood.&lt;br /&gt;
* Air conditioning.&lt;br /&gt;
* BSRIA articles.&lt;br /&gt;
* BSRIA definitions.&lt;br /&gt;
* Building services.&lt;br /&gt;
* Client commissioning.&lt;br /&gt;
* Commissioning building systems.&lt;br /&gt;
* Commissioning v testing.&lt;br /&gt;
* Commissioning.&lt;br /&gt;
* Differential pressure anemometer.&lt;br /&gt;
* Pilot tube.&lt;br /&gt;
&lt;br /&gt;
[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]&lt;/div&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

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