Equivalent area
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.’
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Commercial rooflight refurbishment
The daylighting and ventilation opportunities of new rooflight solutions.
ISG report examines discrepancies in zero carbon trends.
Shock waves produce loud noises in pipes.
Loneliness, design and civil engineering
How professionals can play a fundamental role in improving social inclusion.
Brick soffits on tall structures
Traditional materials adapted for strict fire safety requirements.
Discovering the virtual Heritage MarketPlace
IHBC's event offers educational sessions to support attendee CPD.
Prone to noise and drafts, this flooring method can have some benefits.
The influence of digital technologies on conservation.
How to manage workplace stress
Tips for civil engineers and other construction professionals.
Professional Qualifications Bill
Updated credential recognition regulations introduced.
New disciplines that are worth keeping.
Reporting listed building prosecutions
IHBC members encouraged to update violations database.
Non-obtrusive security sensors can help deter intruders.