Presents the first results of a study aimed at determining loss coefficients of parts of the most used ventilation systems. Describes the experimental installation, and the evaluation method, and analyses measurements.
The primary purpose of this project was to determine if furnace heat exchangers were prematurely or excessively rusting due to condensation when fresh air ducts are hard connected to the return air system; In addition, occupants were to be interviewed to ascertain whether such systems were causing cool drafts. The energy impact of this type of ventilation system and the practicality of installing high inside wall supply outlets was also to be investigated.
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