Effect of hole area and incline angle on pipe flow leakage rates

Authors

  • Chris Jing University of British Columbia
  • Chance Park University of British Columbia

Keywords:

Pipe Flow, Leakage Rate, Discharge Equation, Drip Irrigation

Abstract

Water will always remain as a valuable commodity due to its unique properties and availability. Therefore, its transport in pipes has great significance. Malfunctions such as pipe leakages can cause a variety of problems, ranging from household inconveniences to loss of coolant accidents in nuclear reactors. However, if leakage is controlled, an efficient mechanism of solvent administration can be created, as seen in common drip irrigation techniques. The study focused on two variables of pipe perforation: hole area, and pipe incline. The resulting leakage rates were measured. The experimental set-up consisted of a pipe of varying hole areas attached to a water reservoir at varying angles. The hypothesis was that for a horizontally configured pipe with a single hole, the leakage rate would increase linearly with hole area. The experimental data showed consistency with the hypothesis, but deviated from the linear model for smaller and larger hole areas. Furthermore, the study also derived a hypothetical equation for discharge at an incline that relates the relationship between pipe incline and leakage rate. The findings of the study provide more knowledge to incorporate variations to the drop-irrigation technique on both flat and angled land.

References

National Agricultural Library. "Delivery of Chemical and Microbial Pesticides through Drip Irrigation Systems." Delivery of Chemical and Microbial Pesticides through Drip Irrigation SystemsWeb.

Jisl. Dripirrigation. Digital image. File:Dripirrigation.png. Wikipedia, 27 Dec. 2006. Web. 23 Mar. 2016.

Swamee, P. K., & Swamee, N. Discharge equation of a circular sharp-crested orifice. Journal of Hydraulic Research, 2010, 48(1), 106-107

Mannan, Sam, and Frank P. Lees. Lee's Loss Prevention in the Process Industries: Hazard Identification, Assessment, and Control. Amsterdam: Elsevier Butterworth-Heinemann, 2005.

Gates, R. S., et al. "Measuring Gas Emissions from Livestock Buildings: A Review on Uncertainty Analysis and Error Sources." Biosystems Engineering. 2013, 116.3, 221-231. Web.

El Khoury, G. K., Schlatter, P., Brethouwer, G., Johansson, A. V., Skolan för teknikvetenskap (SCI), Turbulens. Mekanik. Turbulent pipe flow: Statistics, re-dependence, structures and similarities with channel and boundary layer flows. Journal of Physics, Conference Series, 2014, 506(1), 012010.

Published

2017-10-13

Issue

Section

Articles