Air change measurements in non-air conditioned rooms and the influence of building and climate parameters.Report 1. Luftwechselmessungen in nichtklimatisierten Raumen unter dem Einfluss von Konstruktions-und Klimaparametern. Bericht 1.

Presents the first of two sections of report 34020, detailing measurements carried out over the winter period of 1975/76 in Swiss dwellings with mainly hot water heating and some extract ventilation in kitchens and bathrooms. The aim of the research was to obtain a general picture of air change conditions in typical Swiss dwellings and to determine the effect of influencing parameters. The overall aim was to take a step towards the establishment of more surely founded rules of calculating ventilation heat loss as a function of influencing parameters. Gives the results of an extensive literature search. Treats the theoretical basis of measuring air change in rooms. Describes and illustrates the equipment used. Explains the measurement procedures and their evaluation. Supplies some results of measurements on a five room flat in an apartment building.