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MODELLING AND TESTING THE INTERACTION OF CONDITIONED AIR WITH BUILDING THERMAL MASS.

Author(s) : BRANDEMUEHL M. J., LEPORE M. J., KREIDER J. F.

Summary

THE PAPER SPECIFICALLY EXAMINES THE EFFECTSOF STRUCTURAL THERMAL MASS IN AN ABOVE-CEILING UNDUCTED RETURN AIR PLENUM ON THE AIR REMPERATURE RETURNING TO THE HVAC EQUIPMENT FROM THE ZONE. IT PROVIDES A BRIEF OVERVIEW OF BUILDING MASS DYNAMICS AND METHODS OF ANLAYSIS, DESCRIBES AN EXPERIMENTAL PROGRAM FOR QUANTIFYING THE EFFECTS OF THERMAL MASS ON HVAC SYSTEMS, AND PRESENTS A SIMPLIFIED MODEL FOR INCLUDING PLENUM MASS EFFECTS. THE RESULTS SHOW THAT THERMAL MASS EFFECTS IN BUILDING ZONES CAN BE SIGNIFICANT AND THAT THE MASS IN THE RETURN PLENUM CAN EFFECTIVELY TEMPER BUILDING AIR TEMPERATURES. A SIMPLE PLENUM MODEL CAN BE USED TO ACCOUNT FOR THERMAL STORAGE IN STRUCTURAL ELEMENTS IN A CONVENTIONAL RETURN AIR PLENUM. EXPERIMENTAL DATA HAVE BEEN USED TO VALIDATE THE MODEL.

Details

  • Original title: MODELLING AND TESTING THE INTERACTION OF CONDITIONED AIR WITH BUILDING THERMAL MASS.
  • Record ID : 1992-0847
  • Languages: English
  • Publication date: 1990
  • Source: Source: ASHRAE Trans.
    vol. 96; n. 2; 871-875; 9 fig.; 4 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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