Abstract
In order to realize the effective micro-chemical plant, which is expected to be one of the next generations of chemical plant with high chemical reaction efficiency, the development of suitable pump which must be able to deliver working fluids precisely with keeping the flow being laminar is necessary. We have been studying on the multiple-disc pump as a candidate pump for the micro-chemical plants. In the present study, the effects of the gap between discs and the rotational velocity on pump performances are investigated using a large scale model of multiple disc pumps. The effect of casing geometry is also examined. Performance similarity is investigated toward the development of real-size multiple-disc pumps.