Justification of the main indicators of reliability and failure-free operation of drip irrigation systems during operation

Currently, in order to increase the reliability and reliability of drip irrigation systems as a result at the stage of operation of the facility, it is necessary to take into account the results of assessing the influence of design, technological, design and operational factors on the performance of drippers.

Introduction. In modern conditions, when growing crops, the performance of drip irrigation systems largely depends on the reliability of the drippers. In this regard, to improve the reliability and quality of the elements of drip irrigation systems, it is first of all possible to increase the operational reliability of the systems.

Object. The object of the study is the operational reliability and reliability of drip irrigation systems.

Materials and methods. This article substantiates the theory of reliability of drip irrigation systems. It has been established that during the operation of drip irrigation, the reliability of operation of drip irrigation systems largely depends on the materials used in manufacturing, their design parameters, and operating modes. To establish the reliability of drip irrigation systems, the method of mathematical statistics is used, i.e., the law of time-to-failure distribution.

Results and conclusions. The study found that the performance of a dripper with a change in diameter from 1.0 mm to 2.0 mm and a turbidity of irrigation water of 2.0 g/l improves from 58 to 96 %, respectively. In addition, with an increase in the diameter of the dropper from 1.0 mm to 1.5 mm, the probability of failure-free operation of the dropper changes within the range P(t) = 0.58-1.0, and when changing from 1.5 mm to 2.0 mm P(t) = 0.80-1.0. These data are greater than the recommended reliability coefficient of 0.798. Based on the analysis and data obtained, we supplemented the existing structural diagram of the operational reliability of the drip irrigation system as a fourth factor – human. The issues of theoretical justification and practical application of information and analytical drip irrigation control systems are considered.

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