An investigation has been carried out using computational fluid dynamics methods to study the performance of an air curtain at the door of a heated building. A number of operating conditions have been studied and observations are made on the effectiveness of infiltration control and energy use. Comparisons are also made with previously published design data and results from an accepted infiltration analysis. It is shown that the calculation method generates plausible and very detailed results which conform well to physical interpretation.
Going against the conventional wisdom, a builder in Colorado built-and sold more than 700 extra-energy-efficient homes. The homes' owners now spend half as much on space heating as their neighbors do.
This paper details a set of guidelines for the design of thermally efficient houses in the generally temperate climate of Greece, using the common construction materials of Greek contemporary housing and employing simple passive design techniques. The guidelines should be of use to the designers of climate sensitive housing in Greece. The relationship between heat capacity· levels of thermal insulation and size of openings are considered in detail. The Building Bioclimatic Chart devised by Givoni and the Energy Simulation Computer program ESP are the mai tools of the study.
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