Chapter 15, Problem 8P

Design of a community biogas plant for a village  consisting of 114 families, each family consisting of 5 persons (adults). Two children are equivalent to one person. Village survey report gives the following information’s about cattle’s Cows 185 (10 kg/day);       Oxes 135 (12 kg/day);     Buffalo 75 (15 kg/day)  ; pig 10 ( 3 kg/day); Gas produced from 1 kg of gobar in winter and summer 42 litre and 55 litre. Gas required for cooking/person/day = 0.227 m3 ,Gas required for lighting 100 cp lamp per hour = 0.126 m3 Each family is allotted 2 lamps, which would burn 3 hours daily, Density of slurry 1090 kg/m3 and retention time 35days.  Design the following parameters (i) gas required for cooking& Lighting (ii) Diameter of digester    Diameter d=

Discuss the benefits of pumped storage hydropower (PSH).

Can I get a step by step on how to answer? Given the conditions below of a power plant, determine the concentration of SO2 at a point 5 km downwind on an overcast summer afternoon and 0.3 km perpendicular to the plume centerline (y = 0.3 km) if there is an inversion with a base height of 388 m. Assume SO2 emission as 1,645 g/s and wind speed as 3.5 m/s. Stack parameters: Height = 220.0 m, Diameter =2.20 m Exit velocity = 12.0 m/s , Temperature 315°C Atmospheric conditions: Pressure 98.0 kPa; Temperature 25.0°C Use Cu/Q equation and Graphs from FE Exam Handbook to solve this problem.