To solve the problems of high electricity consumption of the force pumps and frequent cleaning operation caused by the serious crystallizion in traditional evaporators, a new design of the evaporator was developed. The structure was characterized by the short heating chamber and the straight strip-insert to enhancing heat transfer and remove fouling at low flowing velocity. The boiling chamber was a center circulating tube of large cross section and the section becomes greater gradually at the outlet. The experiments show that the convective heat transfer can be enhanced by 92.3% and the strai...
