An investigation of MVHR system performance based on health and comfort criteria in bedrooms of low-carbon social housing in Wales

Farooq, Faisal, Perisoglou, Emmanouil, Ionas, Miltiadis, Lannon, Simon ORCID: https://orcid.org/0000-0003-4677-7184, Patterson, Joanne ORCID: https://orcid.org/0000-0002-4440-159X and Jones, Phillip ORCID: https://orcid.org/0000-0003-1559-8984 2023. An investigation of MVHR system performance based on health and comfort criteria in bedrooms of low-carbon social housing in Wales. Presented at: 43rd AIVC, 11th TightVent, 9th venticool Conference, Copenhagen, Denmark, 4-5 October 2023. Proceedings 43rd AIVC - 11th TightVent - 9th venticool Conference. Air infiltration and Ventilation Centre (AIVC), Item availability restricted.

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Abstract

Literature on the in-situ performance evaluation of Mechanical Ventilation with Heat Recovery (MVHR) in low-carbon social housing suggests that they can maintain a healthy ventilation rate in bedrooms in the UK. However, issues with noise and draught have been reported frequently. These issues may affect the sleep quality of occupants and have a detrimental effect on health and wellbeing. This research aims to present a quantification of these issues by carrying out detailed monitoring and evaluation at two case study sites in Wales, UK. The objectives are to calculate ventilation effectiveness via tracer gas experiment; predict thermal comfort using Predict Mean Vote (PMV); and predict acoustic comfort by measuring MVHR noise under different modes of operation. Results show that ventilation is effective despite the proximity of the supply vent to the door undercut; 90% of occupants are predicted to be thermally satisfied according to Fanger’s thermal comfort model; and sound levels remain under the recommended value of 30dB(A) for bedrooms in all the cases. Results are followed by a discussion on experimental limitations and identification of opportunities for further investigation of the comfort indices mentioned.

Item Type:	Conference or Workshop Item (Paper)
Status:	Published
Schools:	Architecture
Publisher:	Air infiltration and Ventilation Centre (AIVC)
Date of First Compliant Deposit:	27 March 2024
Date of Acceptance:	16 February 2023
Last Modified:	09 Apr 2024 10:00
URI:	https://orca.cardiff.ac.uk/id/eprint/167588

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