A study was performed in an industrial hall heated by several propane radiant heaters located all around the hall at mid-height. The purpose of the study was to determine the advantages of this system when compared to convective heaters, and to determine its limits of application. For that purpose, a minimum instrumentation was installed in the building. This includes an automatic data logger, recording indoor temperatures, moisture content, and meteorological data on site. The energy consumption was manually recorded each week.
Ventilation is necessary to insure acceptable indoor air quality as well as to protect the building itself against damage due to condensation Ventilation rates however, must not lead to excessive energy consumption In order to comply with these requirements of hygiene, comfort and energy savings, French regulations stipulate that the ventilation of dwellings has to be general and continuous and achieved by specific systems by which fresh air is provided to the dwellings.
In this note we discuss the problem (concealed by the latter statement) of calculating the inside air temperature which varies with time and is, when not measured directly, in general not known. The inside air temperature (Tin), which is in betwe
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