ENERGY AUDIT OF A FLOUR MILL PLANT: A CASE STUDY OF CROWN FLOUR MILL PLC
Authors: *Aliu S.A, Onochie U.P, Itabor N.A, Adingwupu A.C
In Nigeria today, many production industries are faced with challenges of utilizing energy efficiently. Hence, for industries to utilize energy efficiently, a proper energy audit should be carried out on its production processes. This paper assesses an energy audit of the 2015 production year of Crown Flour Mill Plant A and Plant B. Data was collected from the processing mills, A and B, to determine the energy consumption rate in the Milling Plants. From the results, it was determined that the roller mill machines in Mill A and B consumes the largest quantity of energy which is 32,078,200MJ/year and 20,808,191.27MJ/year respectively. This accounts for 91.8% and 62.6% respectively of energy consumed in the both plants. The purifier machine in Mill A and the blower standby machine in Mill B are the least consumer of energy among the process machines used in the flour production process. This accounts for 0.13% and 0.14% of the energy consumption. The calculated amount of diesel fuel energy consumed was about 18.4GWh/year and 29.5GWh/year for Mill A and B respectively, which is a total of 47.9GWh/year. However, the energy requirement of the process machines and consumption capacities for Mills A and B was a total of 14.1GWh/year which is far lesser than the energy generated from the diesel fuel used. Hence, a lot of energy is being wasted in the flour production plants.
Affiliations: *Department of Mechanical Engineering, Faculty of Engineering, University of Benin, PMB 1154, Benin City, Nigeria.
Keywords: Production, Energy, Consumption Rate, Efficiency, Cost Saving
Published date: 2018/06/30