| 摘要 |
A method for controlling a vapour compression system during start-up is disclosed. The rate of change, &Dgr;T1, of the temperature of refrigerant entering the evaporator, and the rate of change, &Dgr;T2, of the temperature of refrigerant leaving the evaporator are compared. Based on the comparing step, a refrigerant filling state of the evaporator is determined. The opening degree of the expansion device is then controlled according to a first control strategy in the case that it is determined that the evaporator is full or almost full, and according to a second control strategy in the case that it is determined that the evaporator is not full. Thereby it is ensured that a maximum filling degree of the evaporator is quickly reached, without risking that liquid refrigerant passes through the evaporator. |
