From Dr. Moataz El-Nemr:
Drip irrigation performance evaluator is a practical tool for the users that deal with drip irrigation system and need to calculate of visualize certain uniformity parameters. It is an Excel-based application that enables you to consolidate the data gathered by taking samples and to display them as a graph. You can use the spreadsheet when you have gathered at least 16 samples from the irrigation system. It is designed to provide you with information about flow rate variation and other useful efficiency-related parameters. 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 developed 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. 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. A user help worksheet was also provided.