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Subject: Soil and Water Engineering × Author: Bagchi, Argha × Start date: 1987 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Development of a Water Distribution Model for Warabandi System
    (Punjab Agricultural University Ludhiana, 2014) Bagchi, Argha; Siag, Mukesh
    ABSTRACT A study of warabandi distribution has been done taking data from the Punjab State Irrigation Department for the watercourse number 79000R and 62740L on Bajidpur and Rookanpura minors respectively, located in Abohar Tehsil in South-West Punjab. The Irrigation Department is distributing the water under warabandi system without taking into account seepage losses along the watercourse. Seepage losses were calculated for both the lined and unlined section of the watercourses by ponding test. Seepage losses were considerable, especially in the unlined section. In this study, a computer model in C++ language has been made to find the water distribution time among farmers by accounting for seepage losses along the watercourse. The model gave water distribution similar to that given by Irrigation Department if no seepage loss is taken, whereas there is considerable redistribution if seepage losses are accounted for. The distribution time of farmers near the outlet is reduced, whereas for farmers at the tail of the watercourse, especially with unlined section, the time increase, thus indicating proper compensation for seepage. Accounting for seepage losses ensures better equitable distribution of the irrigation water among the farmers. A comparison was also done between actual filling and drainage times taken for the watercourses, as mutually agreed between farmers and the Irrigation Department, and estimated times of filling and drainage depending on discharge of outlet and size of watercourse. There is some variation in the filling and drainage time taken and that estimated, with drainage time taken being considerably less than estimated.