DESIGN OF MICROSPRINKLER SYSTEM BASED ON NON-UNIFORMITY IN SPRINKLING
| dc.contributor.advisor | Pampattiwar, P.S. | |
| dc.contributor.author | Pathare Shahaji B. | |
| dc.date.accessioned | 2019-11-15T09:38:24Z | |
| dc.date.available | 2019-11-15T09:38:24Z | |
| dc.date.issued | 1993 | |
| dc.description.abstract | The laboratory studies on microsprinkler were under taken in the year 1992-93 to study the discharge, moisture distribution pattern, non-uniformity in sprinkling, wetted diameter and an average depth of precipitation as influenced by operating pressures for a fixed stake height of 30 cm. An attempt was also made to study the resultant wetting pattern in respect of non-uniformity, average depth of precipitation, cost of system for various microsprinkler spacings. A non-uniform distribution of water affects the yield of crop. The data generated at All India Co-ordinated Research Project on Water Management, Mahatma Phule Krishi Vidyapeeth, Rahuri on yield of watermelon as influenced by depth of irrigation water applied was used to develop the yield function. An effect of non-uniformity in sprinkling on yield of watermelon was studied for the resultant wetting patterns obtained for various spacings and operating pressures. The optimal microsprinkler spacings were worked nut. An attempt has also been made to provide graphical solution by which for any given operating pressure, the values of optimal spacing, the cost of system, the yield and coefficient of variation can directly be read. The wetting patterns of microsprinklers for all operating pressures showed a triangular shape. An increase in operating pressure (P) resulted in a corresponding increase in discharge (Q) of microsprinkler. The discharge was in the range of 24 to 34.2 lph for operating pressure in the range of 9 1.2 to 1.8 kg/cm . An increase in operating presssure decreased the average depth of precipitation upto 1.6 kg/cm operating pressure and further increase in operating pressure increased the average depth of precipitation. An average depth of precipitation was found in the range of 4.23 to 5.74 mm. And increase in operating pressure from 1.2 to 1.8 kg/cm" increased the wetted throw from 4.68 to 5.77 m. and the coefficient of uniformity from 40.7 to 60.9 per cent respectively. The resultant wetting pattern obtained by overlapping the wetting pattern for microsprinkler spacings in the range of lx In to 2,5 x 2,5 n indicated that the lower spacing and lower operating pressure of microsprinkler minimized the variation and thus the more uniform depth of precipitation. For the same operating pressure, the increase in microsprinkler spacing reduced the average depth of preciptation. The coefficient of uniformity and coefficient of variation values were observed in the range of 57.42 to 95.17 dper cent and 0.06 to 0.49 respectively, for the range of operating pressure and microsprinkler spacing under study. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810135398 | |
| dc.keywords | NON-UNIFORMITY, SPRINKLING | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 112pp | en_US |
| dc.publisher | Mahatma Phule Krishi Vidyapeeth, Rahuri. | en_US |
| dc.sub | Agricultural Engineering | en_US |
| dc.subject | null | en_US |
| dc.theme | Agricultural Engineering | en_US |
| dc.these.type | M.Tech. | en_US |
| dc.title | DESIGN OF MICROSPRINKLER SYSTEM BASED ON NON-UNIFORMITY IN SPRINKLING | en_US |
| dc.type | Thesis | en_US |