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PROCÉDÉS ET SYSTÈME DE COMMANDE BASÉE SUR LA DEMANDE D'UNE CHAUDIÈRE SEMI-TUBULAIRE
PROCÉDÉS ET SYSTÈME DE COMMANDE BASÉE SUR LA DEMANDE D'UNE CHAUDIÈRE SEMI-TUBULAIRE
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摘要
A combination boiler provides heated water to a boiler loop and heated domestic hot water (DHW) to a DHW loop. A primary heat exchanger is connected to the boiler loop. A burner provides heat to the primary heat exchanger and an input fan supplies a fuel and air mixture to the burner. A secondary heat exchanger transfers heat energy from the boiler loop to a domestic water loop. A controller determines a boiler loop flow rate. The controller measures an input temperature of the boiler loop, an output temperature of the boiler loop, and a DHW output temperature of the domestic water loop. The controller determines a DHW input temperature and estimates a DHW flow rate. The input fan speed is initiated or operated according to a required heat output of the burner corresponding to the DHW flow rate.
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