Redesign of turbine-pump impeller and diffuser using hydrodynamic design techniques. Final report

Hamrick, Joseph T

doi:10.2172/6511193

Cited by 2 publications

(5 citation statements)

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“…Losses in pumping plant efficiency and energy occur in the column, the line shaft, the pump impeller, and the diffuser apparatus. Aerospace Research Corporation modified the design of a conventional column and pump to reduce the friction losses that result in efficiency loss and increased energy use (Hamrick 1980). The column and redesigned pump differed from conventional columns and pumps in four respects: 1) a packer was used to seal the well casing just above the pump so it could be used as a supplementary water conduit; 2) a smaller, high-strength line shaft was installed; 3) the impeller and diffuser design was modified, and 4) the impeller blades were mechanically polished.…”

Section: Column and Pump Redesignmentioning

confidence: 99%

Potential cost savings from investments in energy-conserving irrigation systems

Patton¹,

Wilfert²,

Harrer³

et al. 1982

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In accordance with DOE goals, the Agriculture and Food Processes Branch is promoting both increased used of existing energysaving irrigation technologies and the development of new technologies in the Energy Conservation in Irrigation Systems Program. This program has involved sharing with industry the development costs of projects having the potential to significantly reduce energy usage in irrigation systems. Since 1977, the Pacific Northwest Laboratory (PNL), operated by the Battelle Memorial Institute, has been supporting the Agriculture and Food Processes Branch in its efforts to issue a program opportunity notice for the design and development of irrigation systems that reduce energy consumption without sacrificing agricultural productivity. Toward this end, PNL has technically and administratively monitored the contracts under the program opportunity notice. This report, which provides an assessment of the market potential and economics of the energy-saving irrigation systems, is intended to be of interest to farmers, irrigation equipment vendors, and irrigation equipment manufacturers.

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Section: Column and Pump Redesignmentioning

confidence: 99%

Potential cost savings from investments in energy-conserving irrigation systems

Patton¹,

Wilfert²,

Harrer³

et al. 1982

View full text Add to dashboard Cite

show abstract

“…For the purposes of the economic analysis, conventional new pump efficiencies were assumed to be 70% for all states. For the redesigned pump and variable-speed pump, efficiency estimates were calculated by adding the 70% base efficiency to the incremental improvement in pump efficiency that was obtained in the field testing of these technologies by the project contractors (Hamrick 1980 andFoster-Miller 1981). For the redesigned impeller, these calculations resulted in an efficiency of 75%, and for the variable-speed pump, 74.2%.…”

Section: Pumpsmentioning

confidence: 99%

“…The cost of impeller redesign was assumed to be all R&D, with no extra cost to the farmer. Contractor research (Hamrick 1980) indicated that the pump packer cost would be compensated in large measure by a reduction in line and pipe costs. Thus, the change in capital costs for the redesigned pump column, impeller and housing was assumed to be only $200.…”

Section: Pumpsmentioning

confidence: 99%

“…The after-tax benefits of a redesigned pump are primarily related to the small capital cost increases calculated by the system's developers (Hamrick 1980) for the redesign of the impeller and diffuser and the installation of the casing packer and new line shaft. This cost is easily offset by the value of the realized energy savings.…”

Section: According Tomentioning

confidence: 99%

“…, 1959, 1964, and 1969. (b) Source: Brantwood Publications, 1972-1980 Irrigation Journal Annual Survey.…”

Section: Prospects For Increasing the Acreage Under Irrigat10nmentioning

confidence: 99%

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Energy savings potential from energy-conserving irrigation systems

Wilfert¹,

Patton²,

Harrer³

et al. 1982

View full text Add to dashboard Cite

In accordance with DOE goals, the Agriculture and Food Processes Branch is promoting both increased used of existing energysaving irrigation technologies and the development of new technologies in the Energy Conservation in Irrigation Systems Program. This program has involved sharing with industry the development costs of projects having the potential to significantly reduce energy usage in irrigation systems. Since 1977, the Pacific Northwest Laboratory (PNL), operated by the Battelle Memorial Institute, has been supporting the Agriculture and Food Processes Branch in its efforts to issue a program opportunity notice for the design and development of irrigation systems that reduce energy consumption without sacrificing agricultural productivity. Toward this end, PNL has technically and administratively monitored the contracts under the program opportunity notice. This report provides a national perspective of the energy savings potential from energy-conserving irrigation systems.

show abstract

Redesign of turbine-pump impeller and diffuser using hydrodynamic design techniques. Final report

Cited by 2 publications

References 0 publications

Potential cost savings from investments in energy-conserving irrigation systems

Potential cost savings from investments in energy-conserving irrigation systems

Energy savings potential from energy-conserving irrigation systems

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