Thermal comfort in a naturally ventilated test room is investigated. The test room is a lightweight portable cabin located in a sheltered area at Loughborough University, UK. Thermal comfort simulations were carried out for various sizes of openings and glazing. Medium and high thermal mass were added to the test room and their effects on thermal comfort were investigated. The results suggested that thermal mass has significant effect on thermal comfort parameters. Adding a 200 mm thick layer of medium-density concrete to the walls improved the thermal comfort over the summer by 40%.

A numerical model, employing a local-averaging formulation was developed for heat transfer and water vapor deposition within fiberglass insulation under air exfiltration and frosting conditions. Frost growth on the cold surface was modeled using special frost growth boundary conditions. Non-isotropic permeability effects that occur in fiberglass boards were included in the mode/for porous medium flow because tests showed that the permeability for flow parallel to the plane of the boards was 69% higher than perpendicular to the insulation boards.

This report presents a simplified computational model for combined air-, moisture and heat transport for one-dimensional cases. The model is based on finite difference technique with explicit forward differences in time. Analytical solutions for the coupling, the conductances, between the computational cells for a given air flow through the construction are used. Moisture is transferred by vapour diffusion and vapour convection. No liquid water transport occurs.

This paper outlines the results and lessons derived from monitoring the Elizabeth Fry Building at the University of East Anglia (UEA) for a period of 18 months in use. The monitoring, carried out as part of the Department of Environment, Transport and the Region's Energy Efficiency Best Practice programme, sought to examine the performance of the building as a whole rather than focusing on one particular element.

The radiative cooling potential is determined by the ambient temperature, relative humidity, wind velocity, and cloudiness. Previous assessments of the radiative cooling potential in Greece have been based on mean weather data. In chis paper, 12 years of hourly weather data are used to assess the radiative cooling potential in Athens. The performance results for a simple radiator are also presented. The radiative cooling potential for Athens is promising and simple radiators can be used to estimate the cooling potential.