Macha, Bhargav; Mavrogianni, Anna; Raslan, Rokia; Lomas, Seb Laan; Lumley, Mark; (2025) Indoor thermal environmental assessment of the UK’s first Passivhaus-certified extra care scheme under current and projected future climate scenarios. In: Proceedings of the CIBSE IBPSA-England Technical Symposium 2025. (pp. pp. 1-25). CIBSE: London, UK. (In press).

Preview

Text CIBSE IBPSA-England Technical Symposium 2025_Bhargav Macha.pdf - Accepted Version Download (5MB) | Preview

Abstract

This paper examines the thermal performance of the UK’s first Passivhaus-certified extra care home, assessing its resilience under current and projected climate scenarios. A mixed-methods approach—comprising environmental monitoring, dynamic thermal modelling, and semistructured stakeholder interviews—evaluates indoor dry bulb temperature, relative humidity, and CO₂ levels across key spaces. A month’s monitoring in summer indicates stable indoor temperatures between 23°C and 25°C, though high-traffic zones show variability of up to 0.5°C due to frequent door use. Dynamic thermal modelling across future climate scenarios indicates that, while the building meets comfort thresholds under current and near-term conditions, extreme cases, such as the 2080s high-emissions 90th percentile scenario, reveal a 4.6°C increase in median outdoor temperatures, leading to thermal comfort threshold exceedance in 12.3% of occupied hours. Stakeholder insights emphasise the need for adaptable cooling mechanisms and suggest enhancing passive strategies, such as adding external shading, to support occupant comfort as climate conditions evolve.

Download activity - last month

Export as XMLJSONCSV

Download activity - last 12 months

Export as CSVXMLJSON

Downloads by country - last 12 months

Export as CSVJSONXML

Archive Staff Only

View Item