OPERATION CONTROLLER FOR HEAT STORAGE AIR CONDITIONER SYSTEM AND OPERATION CONTROLLING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To eliminate the waste residue of heat storage and to take out a suitable amount of heat storage by calculating an estimated radiation possible amount by considering the radiating characteristics of a heat storage tank, comparing it with the predicted air conditioning load previously stored, and selecting the optimum operation mode of a heat storage air conditioner system based on it. SOLUTION: A radiation possible amount calculator 35 calculates radiation possible amount from the residual storage amount, brine exit temperature and temperature in tank by considering the radiation characteristics of an ice thermal storage tank stored in an ice thermal storage tank radiation characteristic memory 34. On the other hand, a thermal load predicting unit 32 predicts the thermal load based on weather conditions and past storage data. A predicted air conditioning load calculator 33 calculates predicted air conditioning load from the present time to next heat storage starting time based on the result of the unit 32. An operation mode judging unit 37 compares the calculated radiation possible amount with the predicted air conditioning load, and selects the optimum operation mode from the modes stored in an operation mode memory 36.