Volume of Biogas Needed for Cooking, Electricity and Lighting

[Henlus]

Methane (CH4): 50-70 vol.%, carbon dioxide (CO2): 28-48 vol.%, other gases: up to 2 vol.%.
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1. The gas consumption per person and meal = 150-300 litres biogas.
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2. Boiling 1 litre of water = 30-40 litre of biogas
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3. Boiling 1/2 kg rice = 120-140 litres of biogas.
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4. Boiling 1/2 kg legumes = 160-190 litres of biogas.
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NB: 1L = 0.001m3 (cubic meter)

5. What can 1 m3 biogas do?
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a. It can illuminate a gas lamp equivalent of 60 W non-electricity saving bulb for about 7 hours, resulting in a light performance efficiency of only 7%, 93% of the energy content is transformed into heat.
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b. It can cook 3 meals for a family of 5-6 persons.
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c. It can generate 2 kWh of electricity, the rest turns into heat which can also be used for heating applications.
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d. It is equivalent to 5.5 kg of firewood.
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e. It is equivalent to 1.5 kg of charcoal.
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f. It is equivalent to 0.45 litre of petrol, 0.55 litre of diesel, 0.60 litre of kerosene, or 0.5 kg of LPG.


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