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A METHODOLOGY FOR BUILDING THERMAL DYNAMICS STUDIES AND CONTROL APPLICATIONS.

Author(s) : ATHIENITIS A. K., STYLIANOU M., SHOU J.

Summary

A METHODOLOGY IS PRESENTED FOR A UNIFIED APPROACH TO BUILDING THERMAL CONTROL STUDIES AND BUILDING ENERGY ANALYSIS. THE SAME DETAILED BUILDING THERMAL MODELS ARE USED FOR ENERGY CALCULATIONS AND FOR THERMAL CONTROL STUDIES. TYPICAL STUDIES WITH THE METHODOLOGY LED TO THE FOLLOWING RESULTS: (1) A SEPARATION OF BUILDING THERMAL DYNAMICS INTO SHORT-TERM AND LONG-TERM DYNAMICS FOR CONVECTIVE LOADS BEGINS AT FREQUENCIES OF ABOUT 35 CYCLES PER DAY (PERIOD 41 MINUTES), WITH THE ROOM AIR THERMAL CAPACITANCE BEING IMPORTANT ONLY FOR THE SHORT-TERM, HIGH-FREQUENCY THERMAL DYNAMICS. (2) AIR TEMPERATURE SENSOR TIME CONSTANTS ARE SHOWN TO HAVE A SUBSTANTIAL EFFECT ON ROOM TEMPERATURE RESPONSE TO SETPOINT CHANGES.

Details

  • Original title: A METHODOLOGY FOR BUILDING THERMAL DYNAMICS STUDIES AND CONTROL APPLICATIONS.
  • Record ID : 1992-0722
  • Languages: English
  • Publication date: 1990
  • Source: Source: ASHRAE Trans.
    vol. 96; n. 2; 839-848; 8 fig.; 1 tabl.; 29 ref.; 3 append.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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