STUDY THE EMISSION UINFORMITY COEFFICIENTS FOR SPRINKLER IRRIGATION SYSTEM WITHE DIFFERENT LAYOUTS

Adnain Jahad, Udai

	STUDY THE EMISSION UINFORMITY COEFFICIENTS FOR SPRINKLER IRRIGATION SYSTEM WITHE DIFFERENT LAYOUTS
Euphrates Journal of Agriculture Science
Article 1, Volume 5, Issue 4, 2013, Pages 256-266
Author
Udai Adnain Jahad
Abstract
ABSTRACT : The efficiency of the sprinklers are connected with the values of coefficients of uniformity, the higher value of such coefficient means best system efficiency. This study proposed a new method of connection to improve the uniformity coefficient, and this is done by redistribute the pressures through the sprinkler system. The traditional system includes dead (end) laterals, and mostly the pressure is reduced as the distance between the source and the sprinkler is increased. Therefore, in this research the researchers connect the laterals, so, the sprinkler system is work as a looped network, to get high pressure at the ends, and the third case is work as looped with carrier network which lead to improve the sprinklers duty which leads to raise the system efficiency. A field data is measured from a sprinkler system at Khagan Village in Babylon Governorate, 30:15:15 E, 44:40:30 N in the middle of Iraq, in the period between November and December at 2012. To check the field results. EPANET software version 13 is adopted for the theoretical calculations. The results of the field and theoretical results prove that there is a great proximately among pressure results from the proposed connections (looped with carrier network) as compared with the well-known traditional method. The mean performance of the uniformity coefficient are raised by (12.38%) for practically looped with carrier network, and raised by (16.73%) for theoretically looped with carrier network.

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