Open Access Peer-reviewed

Energy Audit of Manufacturing and Processing Industries in Nigeria: A Case Study of Food Processing Industry and Distillation & Bottling Company

Oyedepo Sunday Olayinka1,, Aremu Thomas Oladele1

1Mechanical Engineering Department, Covenant University, Ota, Nigeria

American Journal of Energy Research. 2013, 1(3), 36-44. DOI: 10.12691/ajer-1-3-1
Published online: August 25, 2017

Abstract

In this paper, analysis of the energy audit of Food processing industry and Distillation and Bottling Company in Ota, Nigeria has been carried out. A walk-through energy audit of these industries was undertaken to identify the major sources of energy in use, identifying the lapses in energy usage, identifying areas to improve energy usage, determining the level of consumption of the energy sources and recommending policy measures that will enhance energy savings in the industries and Nigerian industries at large. The study observed that among a wide variation of end-use electricity consuming equipment, electric motors were the major consumer of electrical energy, accounting for 40-47% of total electric energy. Also from the identified energy use sources in the two industries, it was observed that fuel energy expended in operating the generating set, boilers or heaters in the industries had the highest value of energy use accounting for more than 65% of the total energy used. It was observed that none of the companies under review sufficiently utilized their energy as they all have their energy used ratio far below 1. This was as a result of some factors that contributed to energy waste and energy use inefficiency in the companies. Among these factors are: Poor in housekeeping of air- condition and refrigeration equipments and electric motors that dissipate much heat, use of electric motors that are weak and generate excessive noise because they have been rewound more than twice, improper lagging of boilers that lead to losing much heat, switching on of the lighting points in the day time and generation of electrical energy more than needed in the industry by some electric generator. The study concluded that energy is not sufficiently utilized in these companies and recommendations for efficient energy usage in the industries were proposed in this study.

Keywords:

energy, efficiency, audit, electricity, industry, fuel
[1]  Morvay, Z.K and Gvozdenac, D.D (2008), Applied Industrial Energy and Environmental Management, IEEE Press, John Wiley and Sons, Ltd, Publication, United Kingdom.
 
[2]  Saidur R, Hasanuzzaman M, Sattar M. A, Masjuki H. H, Irfan Anjum M and Mohiuddin A.K. M (2007), ‘An analysis of energy use, energy intensity and emissions at the industrial sector of Malaysia’, International Journal of Mechanical Materials Engineering, 2(1):84-92.
 
[3]  3.Hasanuzzaman M, Saidur R and Masjuki H.H (2011), ‘Effects of different variables on moisture transfer of household refrigerator-freezer’, Energy Education Science and Technology Part A-Energy Science and Research 27(2):401-18.
 
[4]  Abdelaziz E.A, Saidur R and Mekhilef S (2011), ‘A review on energy saving strategies in industrial sector’, Renewable & Sustainable Energy Reviews, 15(1): 150-68.View Article
 
[5]  McKane, A, Price, L and Stephane C (2008), Policies for Promoting Industrial Energy Efficiency in Developing Countries and Transition Economies, United Nations Industrial Development Organization (UNIDO), Vienna.
 
[6]  U.S. Congress, Office of Technology Assessment (1993), Industrial Energy Efficiency, OTA-E-560 Washington, DC: U.S. Government Printing Office.
 
[7]  International Energy Outlook (2011), U.S Energy Information Administration.
 
[8]  Energy Information Administration (EIA) (1995) Annual Energy Review 1994 U.S. Department of Energy, Energy Information Administration, Washington, DC.
 
[9]  Energy Information Administration (EIA) (1994) Manufacturing Consumption of Energy 1991 U.S. Department of Energy, Energy Information Administration, Washington, DC.
 
[10]  Jekayinfa, S.O (2006) “Energy Consumption Pattern of Selected Mechanized Farms in Southwestern Nigeria” Agricultural Engineering International: the CIGR E-journal, Manuscript EE 06 001, Vol. VIII. April.
 
[11]  Mitrovic, B and Muller, M.R (2002), ‘Energy Impacts of Productivity Improvements In Manufacturing’, Proceedings from the Twenty-fourth National Industrial Energy Technology Conference, Houston, TX, April 16-19. PubMed
 
[12]  Eleri, E.O (1995), ‘Nigeria: Energy for Sustainable Development’, Volume 19, Number 1, Journal for Energy and Development, 104.
 
[13]  Davidson, O (2006), ‘Energy for Sustainable Development: An Introduction’. In: Winkler, H (Ed.), Energy Policies for Sustainable Development in South Africa, Option for the Future.
 
[14]  Eastop, T.D and Croft, D.R (1990), Energy Efficiency, Addison Wesley Longman Limited, England.
 
[15]  Payne, G.A (1997), The energy manager’s handbook. IPC Science and Technology Press Ltd, UK.
 
[16]  Noah, O.O, Obanor, A.I and Audu, M. L (2012), ‘Energy Audit of a Brewery—A Case Study of Vitamalt Nig. Plc, Agbara’, Energy and Power Engineering, 4, 137-143.View Article
 
[17]  Aiyedun, P.O; Adeyemi, O.A and Bolaji, B.O (2008), ‘Energy Efficiency of a Manufacturing Industry: A Case Study Of Nigeria Eagle Flour Mills Limited, Ibadan’, ASSET Series B 7 (2):91-103
 
[18]  Goshwe, N.Y and Kureve, T.D (2012), ‘Industrial Energy Management Opportunities in Nigeria: A Case Study of Energy Audit of VIK Industries Nigeria, Ltd’, The Pacific Journal of Science and Technology, 13(1) May (Spring), pp 152-168.
 
[19]  Aderemi, A.O, Ilori, M.O, Aderemi, H.O and Akinbami, J.F.K (2009): Assessment of electrical energy use efficiency in Nigerian food industry. African Journal of food Science vol 3(8) pp. 206-216.
 
[20]  Fadare,D.A; Nkpubre, D.O; Oni, A.O; Falana, A; Waheed , M.A and Bamiro, O.A (2010), “Energy and Exergy Analyses of Malt Drink Production in Nigeria,” Energy, Vol. 35, No. 12, 2010, pp. 5336-5346.View Article
 
[21]  Odigboh E.U (1998), ‘Machines for crop production’, In: Stout B. A, editor, CIGR handbook of agricultural engineering, American Society of Agricultural Engineers.
 
[22]  Norman, M.J.T. (1978), ‘Energy Inputs and Outputs of Subsistence Cropping Systems in the Tropics’, Agro-Ecosystems, 4: 355-366.View Article