Abstract
A field study (carried out for other purposes) indicated that relatively air-tight rooms have small relative humidity fluctuations in response to fluctuating indoor temperature and outdoor vapour pressures. This effect is due to hygroscopic damping and has been quantified here to allow the derivation of a simple formula giving room ventilation rates as a function of the amplitude of sinusoidal fluctuations in external vapour pressure, and fluctuations in room vapour pressure and humidity. It is found that the room air-change rate is proportional to the room relative humidity fluctuations, and inversely proportional to the difference between the indoor and ourdoor vapour pressure fluctuations, allowing for phase differences. Calculated results agree well with field data.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
