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1. Presentation on biogas plant with some facts Presented by:- Shashank mathur 4-BT-42 Btech biotech IV SEM. JAIPUR NATIONAL UNIVERSITY
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9. Table: Energy density of materials used in plants :- 11.83 ½” G.I. pipe 49.97 PVC pipe 32 Steel 29.06 Iron bar 0.08 Coarse sand 0.08 Sand 0.08 Stone chips 6.7 Cement 1.8 Brick Embododied energy Materials
10. Initial cost = Z C where, Z : Quantity of materials. C : unit cost of materials in Indian currency. Net energy output =HV.S.G. Where, HV= heating value of fuel, in MJ/m3 S= Capacity of biogas plant in m3 G = Gas production per day in m3 per biogas plant capacity.
11. Money pay back time in years (MPBT) = Input cost / running cost per unit time Energy pay back time (EPBT)= Embodied energy/Energy output
12. Embodied energy, net energy output and EPBT for different models and plants size EPBT (years) EPBT (years) Embodied Energy (MJ) Embodied energy (MJ) 1.330 74734.202 1.538 86585.8 154.22 14.02 4. 1.350 38374.094 1.599 45452.6 77.88 7.08 3. 1.824 31122.914 2.196 37471.1 46.75 4.25 2. 2.323 26412.914 2.809 31939.4 31.125 2.83 1. Vertical type Biogas plant Horizontal type Biogas plant Net energy (MJ/day) Plant size(m3) Serial no:
13. Input cost and MPBT for different models and plants size. 0.80 76998 0.91 86585.8 14.02 4. 0.99 48535 1.12 45452.6 7.08 3. 1.36 39655 1.55 37471.1 4.25 2. 1.54 29810 1.80 31939.4 2.83 1. MPBT (years) Input cost (rs.) MPBT (years) Input cost (rs.) Vertical type Biogas plant Horizontal type Biogas plant Plant size(m3) Serial no:
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