Study on Room Air Temperature Response Model and Control Parameters in Follow up Control for Variable Air Volume Air Conditioning System

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  • VAV方式空調設備における室温変動モデルと目標値追従特性からの制御パラメータに関する研究
  • VAV ホウシキ クウチョウ セツビ ニ オケル シツオン ヘンドウ モデル ト モクヒョウチ ツイジュウ トクセイ カラ ノ セイギョ パラメータ ニ カンスル ケンキュウ

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A mathematical model of the VAV air conditioning system control process is derived, considering the mutual influence of the room air temperature and supply air temperature variation. A simulation program is developed based on the model. By the numerical calculation of the temperature transient response, supposing a room and its VAV air conditioning system as an example, the adequate proportional gains of supply air temperature control and air volume control in case room air temperature set point follow up control, are analyzed, including the difference according to the number of VAV units belong to an air handling unit. The references of the proportional gains for the analysis are given by the simplified simulations of room air temperature transient response supposed as supply air temperature is constant, and supply air temperature transient response supposed as return air temperature is constant.

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