Experimental study on ice slurry production using direct contact heat transfer of RC318 refrigerant and water

 Using chilled water at 7 ℃/12 ℃ of supply and return temperatures as cold source, establishes an ice slurry generation system using direct contact heat transfer of RC318 refrigerant and water. Clarifies the operating mode, type of nozzle device and refrigerant selection of the system. In the producing process of ice slurry by direct contact between RC318 and water, studies the effects of nozzle orientation and water level on the initial formation time of ice slurry, deicing period and cooling capacity. The results show that at the same water level, compared with the upward nozzle，the ice blockage occurs more easily at the downward nozzle. The time to the freezing point and the deicing period are shorten，and the cooling capacity of downward nozzle is higher than that of the upward one. At the same nozzle orientation, the beginning time of ice slurry generation is delayed, the deicing period is shorten firstly and then extended, moreover, the cooling capacity increases at first and then decreases with the increasing of the water level.