دکتر عارف مردانی

In line with the optimal management to water consumption, the usage of irrigation systems equipped with water cleanup systems increased the acceptance of these systems. In this research, a smart filter equipped with automatic self-cleaning technology was constructed. The experimental of this research in the form of a factorial test based on a completely randomized design with three factors working pressure, water quality and the diameter of filter openings with three repetitions in controlled laboratory conditions. The amount of water consumed will be higher for samples containing large amounts of impurities and filters with larger aperture diameters, and using filters with smaller aperture diameters and considering low operating pressure can reduce the amount of water consumed for washing. The results showed that the best quality of purified water (96.3%) and the lowest amount of water used for washing occurred (21.2 L) at a working pressure of 100 kPa, although this has increased the number of filter washing times. Setting the washing process at the beginning of the first point of pressure deviation causes a high amount of water to be purified in each cycle. Setting up the working pressure unit of the smart filter control unit within 100 kPa and using a net with an opening diameter of 0.1 mm reduces the amount of water used to wash (79%) and increases the quality of the treated water (90%), which will allow the use of waters containing large amounts of suspended soluble solid materials.

Most of the agricultural costs during tillage are related to providing the necessary traction for tillage. In this study, the power consumption during the speed levels, depth of work and overlap of a tillage tine was investigated. The experiment was performed in a soil bin at three speed levels of 0.5, 1.2 and 2 m / s for three depth levels of 10, 20 and 30 cm with width interval of 0, 10 and 20 cm of tillage tine. Statistical analysis of the data showed that the effect of speed on draft force at two levels of 20 and 30 cm depth at 5% level was significant and at 10 cm depth was not significant. Also, the effect of work depth at 5% on draft force at all levels of overlap was significant. Conical index changes at depths less than 10 cm are negligible for different levels. The effect of depth on draft force was observed in exponential form. Also, the reduction in power consumption in the overlap has been observed more.