Operational Characterization of Pressure Regulating Valves
Joint Authors
Araújo, Ana C. S.
Camargo, Antonio P.
Frizzone, José A.
Talamini Junior, M. V.
Saretta, E.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-06
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The functionality of pressure regulating valves (PRVs) is important for proper uniformity and efficiency of irrigation during center pivot irrigation, especially when the center pivot operates on sloping terrain.
In practice, the regulated pressure at the PRV outlet is slightly influenced by its inlet pressure, the flow rate through it, and hysteresis effects.
The objectives of this work were (a) to evaluate operational characteristics of PRVs based on requirements stated by ISO 10522 (1993) and (b) to model the regulated pressure as a function of inlet pressure and flow rate through the valve considering hysteresis.
We carried out tests to evaluate regulation uniformity, regulation curve, hysteresis, and the regulated pressure as function of flow rate and inlet pressure.
The following three models of PRVs were evaluated: 10 PSI, 15 PSI, and 20 PSI.
For each model, three samples were tested under increasing and decreasing conditions of inlet pressure, within the range from 49.03 to 784.53 kPa, with increments of 49.03 kPa.
In addition, flow rates were tested within the range of 0 and 4 m3 h−1.
From the gathered data, models to predict outlet pressure as a function of inlet pressure and flow rate were fitted.
American Psychological Association (APA)
Talamini Junior, M. V.& Araújo, Ana C. S.& Camargo, Antonio P.& Saretta, E.& Frizzone, José A.. 2018. Operational Characterization of Pressure Regulating Valves. The Scientific World Journal،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1215600
Modern Language Association (MLA)
Talamini Junior, M. V.…[et al.]. Operational Characterization of Pressure Regulating Valves. The Scientific World Journal No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1215600
American Medical Association (AMA)
Talamini Junior, M. V.& Araújo, Ana C. S.& Camargo, Antonio P.& Saretta, E.& Frizzone, José A.. Operational Characterization of Pressure Regulating Valves. The Scientific World Journal. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1215600
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215600