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DYNAMICS AND CONTROL OF A CHILLED WATER COIL.

Author(s) : MAXWELL G. M., SHAPIRO H. N., WESTRA D. G.

Summary

AN EMPIRICAL MODEL OF A CHILLED WATER COIL WAS DEVELOPED WITH THE TECHNIQUE OF SYSTEM IDENTIFICATION. THE COIL MODEL WAS USED TO DEVELOP A SIMULATION OF A DIRECT DIGITAL CONTROLLER TO PREDICT THE SYSTEM RESPONSE TO INPUTS WITH P, PI AND PID CONTROL ALGORITHMS. THE RESPONSE OF AN ACTUAL CHILLED WATER COIL WAS MEASURED AND COMPARED TO THE PREDICTED RESPONSE FOR THE MODEL. THE MODEL WAS FOUND TO BE EFFECTIVE IN PREDICTING THE RESPONSE FOR DIFFERENT VALUES OF GAIN FOR EACH TYPE OF CONTROL ALGORITHM. WHENTHE MODEL WAS USED, A SET OF GAINS WAS FOUND THAT GAVE A FAVOURABLE RESPONSE FOR THE SYSTEM.

Details

  • Original title: DYNAMICS AND CONTROL OF A CHILLED WATER COIL.
  • Record ID : 1990-1419
  • Languages: English
  • Publication date: 1989
  • Source: Source: ASHRAE Trans.
    vol. 95; n. 1; 1243-1255; 14 fig.; 3 tabl.; 26 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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