This paper presents 3 full-scale test rooms in a series of 14 built in Italy, with different types of façades. The measurements of energy consumption and indoor environment allow a direct comparison between different solutions exposed to identiacal climat

Results are shown on how to use the thermal mass of buildings envelope to ameliorate diurnal temperature swings in hot dry regions.

CFD calculations and laboratory measurements in a full-scale model were carried out to assess the performance of a full transparent second skin façade intended to equip an office building, composed of very low solar energy transmittance glass, and being v

Indoor aerosol particulate matter (PM) concentrations were measured gravimetrically in 36 carpeted bedrooms of asthmatic children. Particulate concentration was higher indoors than outdoors. High efficiency particule arresting (HEPA) filtration was shown dividing concentrations by about 2.

Particles distribution in type and size were determined in six office buildings in Oslo (Norway).

The filtration efficiency of residential furnaces air filters was measured in several houses in Canada. Even efficient filters have a minor influence on particulate levels in houses. The ways to reduce these levels were investigated. Results show for example how HEPA filters on supply air reduce indoor particle concentration.

Two aluminium windows were tested to determine the fractional penetration of airborne particles. Results show that mainly particles of 0.2 to 3 microns enter through both windows.

Particle penetration into an unoccupied research house was investigated through measurements under different conditions. Onmy particles with aerodynamic diameter of 20 to 3000 nm enter the house in significant quantity.

Several previous calculations have shown that many of the measures taken to improve indoor air quality and climate are cost-effective when the potential savings are included into the calculations as benefits. However, general models on how to estimate the cost-effectiveness of various measures and strategies are still missing. This paper presents approach with which the ratio of savings in any of the costs of owning and operating a building can be compared with the real cost at risk which is reduced worker performance.

The study presents a cost analysis including energy calculations for three outdoor climates (cold, moderate and hot) to improve indoor air quality in an existing building considering both variable air volume (VAV) and constant air volume (CAV) systems with heat recovery. The study also simulates different indoor air quality levels due to different airflows of outdoor air.