In: Mechanical Engineering
A small community of 50 members in Bidiya has decided to build a
mini biogas plant in their area. The waste required for biogas
production was collected from different the cows grazing in the
farm. Daily consumption of gas per person is a person is 500
liters. Take the specific gravity of the slurry as 1.165 gram/cm 3.
For a retention period of sixty-three days design a bio digester.
What would be your conclusion regarding the amount of biogas
produced in a day, energy generated by the plant in a year, number
of cows required to produce the required waste? If 20 more members
are joined to this community, what is your suggestion on meeting
their daily requirement of gas? Justify your answers with valid
data. Also discuss the factors influencing the performance of
various stages such as collection stage, anaerobic stage and power
generation stage of the entire system.