Energy Audit in Mugher Cement Enterprise (Mce)
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Date
2014-06
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Addis Ababa University
Abstract
Cement factory is energy intensive industry that needs a great attention to optimize its energy usage. Mugher Cement Enterprise utilizes imported Heavy Fuel Oil and domestic electric energy. Therefore, reducing energy dissipation enables the enterprise as well as the country saving of foreign currency and keeps the environment from damage.
The aim of this thesis work is to identify the major energy loss areas in Mugher Cement Enterprise for the third cement line and to present suitable modification to enhance energy utilization performance of the factory.
This thesis first systematically identifies the energy losses areas. This is achieved by conducting Chemical analysis and determining energy consumption (thermal and electrical) of corresponding units. In the second stage, performance assessment of these units is undertaken. Finally, the result is compared with standards and original design.
The result of assessment shows that the Enterprise has an enormous opportunity for improvement without jeopardizing its product quality and reputation. Thermal energy losses take the lion share for poor energy performance of the enterprise. The Eta cooler, fans, compressors and pumice dryer are among extremely inefficient devices that needs immediate modification.
A thorough investigation of MCE’s energy audit reveals that there is an opportunity of saving of around 41 millions birr per annum by reducing amount of fuel burnt (excess air), adapting heat recovery mechanism and improving inadequately operating electrical units.
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process engineering