Pumping Stations - Field Performance Investigation.
Abstract
There is very little documentation available for the design of channel approaches and sumps, which are important components in the hydraulic performance of pumping stations. To develop guidance for design of approaches and pumping stations, limited field performance investigations were conducted. Evaluation of field performance was based upon the observation of 42 pumping facilities in five Corps of Engineers Districts and discussions with representatives of those districts regarding hydraulic performance and problem areas. Observations ad discussions of the various pumping stations, which range in age from 4 to 44 years, indicated that the best hydraulic performance occurred at stations with the most symmetrical geometry and uniformly distributed flow to the pump intakes. Satisfactory flow conditions were usually provided by a relatively long and straight approach channel, a streamlined transition from the approach channel to the sump, and a symmetrical sump design. Eddies and adverse circulation of flow, generated by curved approach channels and/or abrupt transitions from the approach channel to the sump, tended to induce vortexes in the sump. Postconstruction modifications such as umbrellas, vanes, grids, floats, and fillets were reported to be effective in reducing adverse flow conditions in sumps. Tests have been initiated in a general research facility capable of simulating a variety of pumping stations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1979
- Accession Number
- ADA078773
Entities
People
- Bobby P. Fletcher