Evaluation of Micro-Sprinkler Characteristics under Various Operating Conditions
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Date
2008
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MPUAT, Udaipur
Abstract
The increasing demand of food for the growing population is enforcing need for expansion of irrigation resources throughout the world. Water being a limited resource, its efficient use is a base for the survival of the ever increasing world population. This is possible only by the way of better water management practices in the field and by introducing advance methods of irrigation. Pressurized irrigation methods are introduced to prevent the unavoidable losses and non uniform distribution of water associated with surface methods. A micro-irrigation system has the potential to be a very efficient irrigation method. The basic information needed for designing the efficient micro-sprinkler irrigation method is inadequate and therefore an attempt was made to generate the information on pressure-discharge relationship, precipitation pattern, uniformity coefficient, emission uniformity and distribution uniformity for one the micro-sprinklers available in the market. The field experiment was conducted to study the effect of micro-sprinkler spacing and operating pressure at instructional farm of CTAE, Udaipur. This chapter deals with the summary of the experimental finding and conclusions of the research study.
To evaluate the performance of micro-sprinkler, an attempt was made to evaluate its performance characteristics under various operating conditions with respect to pressure-discharge relationship, precipitation pattern and field performance in terms of uniformity coefficient, emission uniformity, and distribution uniformity. The major emphasis was given for the suitable operating pressure and spacing between micro-sprinklers. Pressure-discharge relationship as well as uniformity coefficient, emission uniformity and distribution uniformity. were tested at operating pressure ranging from 0.75 to 2.0 kg/cm2 (with an increment of 0.25 kg/cm2). Further, for precipitation pattern treatment the pressure ranges from 1.0 to 2.5 kg/cm2 (with an increment of 0.5 kg/cm2) for the micro-sprinkler spacing of 1.5 m x 1.5 m, 2.25 m x 2.25 m, 3.0 m x 3.0 m and 3.75 m x 3.75 m. These entire tests were conducted under low wind speed condition. Each test run was repeated at least for three times in order to have representative average values.
Description
Evaluation of Micro-Sprinkler Characteristics under Various Operating Conditions
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Citation
Nimkale and Bhakar, 2008