The paper presents results of interlaboratory comparison on the emission of formaldehyde from mineral wool board. Eleven laboratories took part in these studies. The results showed significant variances between laboratories. The discrepancy was related to the chamber conditions and sampling
The performance of four types of heat-pipe heat recovery unit for naturally ventilated buildings was determined in terms of effectiveness and pressure drop. The effectiveness of the heat recovery units was tested in a two-zone chamber. The pressure loss characteristics of the heat recovery units were determined using computational fluid dynamics (CFD) and experimental measurement. CFD was also used to evaluate the performance of a solar chimney for heat recovery in naturally ventilated buildings.
Pubs, bars and restaurants are places where smoking policy is still left to the discretion of the manager and where smoking is often permitted. However, there is demand to take measures to eliminate or reduce the effects of environmental tobacco smoke (ETS) to non-smoking occupants. This paper reports the results of a field study in which ETS markers and air flow patterns were monitored in a number of occupied spaces.
The materials from which a building is constructed make a significant contribution to its overall impact on the environment. This impact is felt in a number of ways; locally. through the effects of activities such as quarrying; globally, as a result of carbon dioxide released by using energy used to manufacture the materials; and internally, in the effects on the health of the occupants of the building. Some of these effects are easier to measure than others. and comparisons between the seriousness of the different effects are difficult to make.
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