Assessment of Energy recovery options and its Economic evaluation from Municipal solid wastes in Addis Ababa (Arada subcity)
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Date
2011-10
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Addis Ababa University
Abstract
This thesis is intended to assess the energy recovery options from Municipal solid wastes that are
collected from Arada Subcity. In the analysis, two particular schemes are analyzed and evaluated
for their economic viability. They are Energy recovery through incineration and Landfilling. A
detail analysis of each of these options is done to determine how much energy can be recovered
by implementing them. Also the detail economic evaluation is conducted to decide on the more
viable scheme. The analysis shows that the implementation of the Landfill gas-to-Energy scheme
incurs the total estimated capital cost of around 37 million birr. The electricity generation
potential of this scheme is around 23MW, which will make a financial value of around
160,000birr.While the capital cost required to implement incineration with energy recovery is
estimated around 120 million birr. By implementing this option, around 2600MW of electricity
can be produced, which makes a saving of 18,049,681birr, where the current electricity selling
price is 0.29 birr/kWh. The analysis is done for the waste capacity of 25,000t per year.
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Mechanical Engineering