AN INTERACTIVE SPREADSHEET FOR DRIP IRRIGATION SYSTEM UNIFORMITY PARAMETERS EVALUATION

Abstract

It is very important to have a fast utility for the irrigation system evaluation to help the system designer and operator to evaluate the system performance and make the reactions towards any system operation problem if exists. Microsoft excel 2010 spreadsheet was successfully created in order to evaluate the drip irrigation system hydraulic performance. The spreadsheet was designed to provide the user with Friendly user interface, easy data input supported with input values check, giving more clarification for emitters' flow distribution supported with charts, and Easy printable outputs Supported with user help work sheet. The uniformity parameters Included Uniformity coefficient , statistical uniformity, manufacturer's coefficient of variation, emitters' flow rate variation, distribution uniformity, and emission uniformity. Emitter exponent also can be calculated by this spreadsheet. The spreadsheet was evaluated by researchers involved with drip irrigation field as excellent rate, beside there was an agreement between spreadsheet calculations and evaluators' in addition to saving the calculation time .