Measuring the heat transfer coefficient (HTC) in buildings: A stakeholder's survey

The heat transfer coefficient (HTC) is a very important factor influencing the energy performance of building. Recent studies have shown importance on-site measurements HTC in reducing gap buildings. However, its measurement setup and calculation procedures are known to be intense complex. Due this, many stakeholders building industry find it impractical insufficient for their needs. This paper presents results an international survey that targets such with aim get perspectives on on-site. Several from 14 countries Europe participated survey. categorized into four parts: a) basic data about participants, b) interest methods measured performance, c) views characteristics methodology d) concerns opportunities. reveal highly interested measuring also provide interesting insights aspects relevant them customers. In particular, we elaborate perspective time conduct measurement, cost setup, duration acceptable error. assimilated understanding will help construction identify opportunities progressive assessment campaign involving measurements. study part International Energy Agency's Buildings Communities Programme (IEA EBC) Annex-71 project titled ‘Building based optimized in-situ measurements’. • Survey 13 types countries. Their duration, accuracy test presented. further discussed. preferences compared existing methods. All