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Computer simulation programming: an aid to the selection of center pivot sprinkler systems
Authors: Stegman, E.C. And A. Bauer
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Download file: https://library.csbe-scgab.ca/docs/journal/12/12_2_92_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 12 (1970)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/12/12_2_92_raw.pdf
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Description: Due to the supplemental nature of sprinkler irrigation in humid and subhumid areas, the selection of optimum on-farm system investment levels is often a perplexing design problem for planners. Current methods of design and adaptation assure system capacities large enough to meet water demands during peak consumptive use periods (2). Since probabilities of rainfall are largely ignored, the capacities which are selected on this basis usually possess a high likelihood of physical adequacy in all years. It is questionable whether these designs also achieve attainable levels of economic efficiency. High likelihoods of complete physical adequacies are particularly apparent when center pivot sprinkler systems are used in humid and Northerly subhumid areas. Table I, for example, shows the pumping rates (expressed in U.S. gallons per minute and acre inches per day equivalents) which are generally available for 40 and 160 acre (16.2 and 64.8 ha) systems. The higher pumping capacities in this table exceed the design peak use rates of many areas (5). Thus, where high per acre investments can not be justified, multiple field operation of individual systems may be feasible and economically attractive. But, when multiple field management is attempted it is also obvious that the effective capacities of a given system will be influenced by soil water holding capacity, crop sequence, planting date of each crop, system management scheme, portability and climate. Hence, many interact-
Keywords: computer simulation programming: an aid to the selection of center pivot sprinkler systems
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Citation: Stegman, E.C. and A. Bauer 1970. COMPUTER SIMULATION PROGRAMMING: AN AID TO THE SELECTION OF CENTER PIVOT SPRINKLER SYSTEMS. Canadian Agricultural Engineering 12(2):92-97.
Volume: 12
Issue: 2
Pages 92 - 97
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Date: 1970
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Coverage: Canada
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DOI:
Description: Due to the supplemental nature of sprinkler irrigation in humid and subhumid areas, the selection of optimum on-farm system investment levels is often a perplexing design problem for planners. Current methods of design and adaptation assure system capacities large enough to meet water demands during peak consumptive use periods (2). Since probabilities of rainfall are largely ignored, the capacities which are selected on this basis usually possess a high likelihood of physical adequacy in all years. It is questionable whether these designs also achieve attainable levels of economic efficiency. High likelihoods of complete physical adequacies are particularly apparent when center pivot sprinkler systems are used in humid and Northerly subhumid areas. Table I, for example, shows the pumping rates (expressed in U.S. gallons per minute and acre inches per day equivalents) which are generally available for 40 and 160 acre (16.2 and 64.8 ha) systems. The higher pumping capacities in this table exceed the design peak use rates of many areas (5). Thus, where high per acre investments can not be justified, multiple field operation of individual systems may be feasible and economically attractive. But, when multiple field management is attempted it is also obvious that the effective capacities of a given system will be influenced by soil water holding capacity, crop sequence, planting date of each crop, system management scheme, portability and climate. Hence, many interact-
Keywords: computer simulation programming: an aid to the selection of center pivot sprinkler systems
Résumé:
Mots-clés:
Citation: Stegman, E.C. and A. Bauer 1970. COMPUTER SIMULATION PROGRAMMING: AN AID TO THE SELECTION OF CENTER PIVOT SPRINKLER SYSTEMS. Canadian Agricultural Engineering 12(2):92-97.
Volume: 12
Issue: 2
Pages 92 - 97
Contributor:
Date: 1970
Technical field:
Conference name:
Session name:
Other information:
Type:
Format:
Publication type:
Source:
Relation:
Coverage: Canada
Language 1:
Language 2:
Rights:
Notes:
Other files:
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