Fluid flow maldistribution in each tube of a dry-expansion shell and tube evaporator can cause inefficient heat exchange. In this paper

a numerical simulation of flow distribution in a dry-expansion shell and tube evaporator is carried out using CFD commercial software. A new type of dispenser is proposed to balance the flow distribution between different tubes. A numerical simulation and visualization experiment are compared to verify the reliability of the simulation results. An experimental platform was set up

and a conical liquid distributor was designed and manufactured. The liquid distributor was installed in a chiller. The performance of the chiller under different conditions was tested. The results show that the inlet and out?let pressure drops in the evaporator decreased from about 15 kPa to about 3 kPa

and the entire COP increased by about 5%.