Vertical drop weir is such a weir, whose D/S face is given steep batter. The U/S face is mostly vertical, but it can also be given batter like D/S face. The design of such a weir consists of: 1. Fixing Various Elevations by Hydraulic Computations 2. Design of Weir Wall 3. Design of Impervious Floor of the Weir Wall 4. [...]
In this article we will discuss about the design of impervious floor of the weir for sub surface flow. Khanki weir failed in 1895. An expert's committee under the Chairmanship of Lt. Col. Caliborn, then Principal of Thomson College, Roorkee was set up to investigate the causes of failure of this weir, which was founded on sandy soil. The committee [...]
The following points highlight the three main parameters used for selecting biogas plant design. The parameters are: 1. Selection of Design Parameters for JBPs 2. Selecting Design Parameters Using a Cost Minimisation Model 3. Estimation of Heating Needs for Maintaining the Digester at Desired Temperature. 1. Selection of Design Parameters for JBPs: A biogas digester is essentially a chemical reactor [...]