Performance characteristics modified low lift pumps 100-K Area

Abstract

A development program was initiated under Project CG-775 to test the proposed. process water pump modifications for Project CGI-883, Increased Process Water flow 100-K Area. Both the high lift and low lift pumps of the 190-KE pumping Unit were modified during May, 1959 for in-service prototype testing of the proposed equipment revisions. The testing proved the feasibility of the modification program but a problem, in the form of capitation damage to the high lift pump impeller, was noted. An incremental production gain at the NE reactor was realized as a result of the test program. Interim funds were authorized in February 1960 to initiate detail design on total KE and KW water plant expansion and to modify one KW process paying set for an early incremental production gain at the KW reactor. The modified KW process pumping unit was placed in service in mid-1960 and a proportionate reactor production gain was realized. Shortly after the modified KW pumping unit was placed in service it was noted that the total process water flow in KW was somewhat greater than in KE. An investigation was made to evaluate the low lift pumping Units in each area to find out if they contributedmore » to the difference in flow. This report describes the results of the investigation.« less