The Research On The Properties Of Ice-harvester Tank At Storing And Melting

Although ice storage has been researched and applied about ten years in our country, it is still limited to use the static ice-making. The dynamic ice-making has been involved for some time, but it only stays the discussed-phases. Ice-harvester is a kind of the dynamic ice-making, which adopts a new suit of liquid overfeed refrigeration system and don't use glycol as coolant. How to fill the ice-harvester tank and supply cooling in the regulated time is a difficult question that has to be resolved.In the past, to resolve the question about ice-filling, the new water level and the half width of icepack were assumed, and then the equations were established by using the icepack math model, the original water level and ice mass. The equations were very complex, so it was hard to be resolved. To resolve the question about ice-melting, the velocity and temperature distribution was obtained in turn. The average temperature of water exiting the tank is found out by a mass averaging over all the exit elements. The result is not ideal.Based on the previous research about the ice-harvester tank, the paper further investigates the properties of tank at ice-filling and ice-melting, notifying the relation between the two rest angles, bringing out the method to optimize the tank's dimensions, resolving the ice-filling problem according to the connection between the icepack and the tank's underside, analyzing the ice-melting problem with discharge capacity. It is easy to get the rest angle under water level. The void space of tank is least, and the storage capacity is improved. When the original water level is presented, the water level change is first calculated, and then the new water level is obtained. At this time, the dimensions and mass of the ice-pack is easy and nicely to get. The question is settled that the result of the ice-melting experiment was hard to apply. The designer will not feel difficult to calculate the tank, will not flinch, will not randomly use some formulate. The design can be advanced in proper sequence.