Air capture hood
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.
It states in relation to an air capture hood (thermal): “This instrument measures air flow by means of exposed thermal elements housed inside a moulded rectangular section body over which the air passes. The instrument has a measurement range of 2 to 65 l/s with a typical accuracy of ±5% of the indicated value.’
It defines an air capture hood (Balometer) as: ‘….lightweight collapsible assemblies used for the measurement of flow rates at supply and extract diffusers. An air flow hood captures the air from the diffuser and directs it past an integral array of pressure sensing points which (working on pitot tube principles) provide a direct measurement of flow rate. They give a direct reading, usually in l/s. The typical range is between 25 and 950 l/s. Typical instrument accuracies are in the range ± 3% of the indicated value.’
See also: Balometer.
--BSRIA
[edit] Related articles on Designing Buildings
Featured articles and news
Investors in People: CIOB achieves gold
Reflecting a commitment to employees and members.
Scratching beneath the surface; a guide to selection.
ECA 2024 Apprentice of the Year Award
Entries open for submission until May 31.
UK gov apprenticeship funding from April 2024
Brief summary the policy paper updated in March.
For the World Autism Awareness Month of April.
70+ experts appointed to public sector fire safety framework
The Fire Safety (FS2) Framework from LHC Procurement.
Project and programme management codes of practice
CIOB publications for built environment professionals.
The ECA Industry Awards 2024 now open !
Recognising the best in the electrotechnical industry.
Sustainable development concepts decade by decade.
The regenerative structural engineer
A call for design that will repair the natural world.
Buildings that mimic the restorative aspects found in nature.
CIAT publishes Principal Designer Competency Framework
For those considering applying for registration as a PD.
BSRIA Building Reg's guidance: The second staircase
An overview focusing on aspects which most affect the building services industry.
Design codes and pattern books
Harmonious proportions and golden sections.
Introducing or next Guest Editor Arun Baybars
Practising architect and design panel review member.
Quick summary by size, shape, test, material, use or bonding..