Engineering, 05.05.2020 09:10 kira3039

A household disposes of 300 kg of domestic waste a year, 90% of which is carbohydrates and 10% of which is inert, in an anaerobic digester. The family uses methane for cooking on an open fire. Estimate the number of litres of water that could be boiled annually.

Speficic heat of water: 4.2 kJ kg-1C-1

Assume that efficiency of heat conversion to water from the biogas to be 38% and that the starting temperature of the water is 40 degrees Celclius. The latent heat of vaporization of water is 2,260 kJ/kg.

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A household disposes of 300 kg of domestic waste a year, 90% of which is carbohydrates and 10% of wh...