Babalola And Akinoso


Babalola and Akinoso

Greener Journal of Agricultural Sciences, Vol. 5 (4), pp. 122-131, July 2015.

 ISSN: 2276-7770  

Research Paper

Manuscript Number: 122912349



Energy Utilization and Conservation Approach in Cashew Nut Mill


Babalola, J.O.1 and Akinoso, A.2


1The Polytechnic Ibadan, Department of Food Science and Technology

2University of Ibadan, Department Food Technology


Corresponding Author’s Email: txy23m@ yahoo. com


Food processing industries relies on energy to carry out the desired operations and to obtain high processing efficiencies in conversion processes that create new forms of foods. This research work was carried out using OLAM Nigeria Limited in Oyo state, Nigeria as a case study, to examine different unit operations and various patterns of energy consumption in cashew nut processing. The relationship between the energy consumption and production capacity was analyzed to compute installed capacity (P), production (Pr), percentage production capacity utilization (PPCU), energy (En) and energy intensity (EI), using standard equations. Energy wastage was identified and technical measures for improving energy efficiency were suggested. The result obtained from analysis showed that installed capacity and production were 12 million and 6 million per annum respectively. While the percentage production capacity utilization, energy intensity, energy utilized from electricity, thermal energy from either diesel or cashew nut shells (CNS), manual energy supplied by male and female were 50%, 2.08MJ, 3.10MJ (0.15%), 418.36MJ (20.12%), 573.79MJ (27.59%), 74.85MJ (3.59%), and 1009.84MJ (48.56%), respectively. The different between the total energy utilized from comparative analysis before and after conserved energy were 150,155.32MJ and 2,079.67MJ respectively. It was recommended that the locally fabricated brick mud heating mantle with an enclosed chamber over a suitable grate with a proper opening for primary and secondary  channel to generate maximum heat transferred to the steam boiler and the trays for drying kernels should be work on to reduce heat loss and conserved energy.


Key Words: cashew nut, processing, energy intensity, energy wastage, energy savings.

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Aderemi, A.O., Ilori, M.O., Aderemi, H.O and Akinbami, J.F.K. (2009). Assessment of electrical energy use efficiency in Nigeria food industry. African Journal of Food Science. Vol.3 (8): 206-216. Available online


Atul Mohod Sudhir Jain and Powar, A. G. (2010).  Energy Option for Small Scale Cashew Nut Processing in India.  Energy Research Journal 1(1): 47-50 (c) 2010 Science Publications.


Atul Mohod, Sudhir Jain, Ashok Powar, Naren Rathore, Anilkumar Kurchania (2010). Elucidation of unit operations and energy consumption pattern in small scale cashew nut processing mills. Journal of Engineering 99: 184 – 189.


Chang, H.H., Chang, D.I., and Kim, D.C. (1996). Energy model of rice processing complex. America society of Agriculture Engineers (ASAE). Paper No 946064, st. Joseph, USA, 34pp.


Chineke, T.C., Nwafor, O.K., and Okoro, U.K., (2010). Optional Benefits of Utilizing Renewable Energy Technologies in Nigeria and the CIBS Quadrangle: A Review. Bayero Journal of Pure and Applied Sciences 3(1): 142-146.


Ezeike G.O.I (1981). Energy consumption in rice processing operation in Nigeria: selected case studies. Journal Agric Mech Asia Africa Latin Am; 18(1):33-40.


Jekayinfa, S.O., and Bamgboye, A.I.,( 2003). An analysis of energy use patterns of a cashew nut processing plant. In processing of the 4th International conference of the Nigerian Institute of Agricultural engineers, Vol 25; 70-77.


Jekayinfa, S. O. , and Bamgboye ,. A. I., (2006). Estimating Energy requirement in cashew nut  processing operations. Energy, 31[8-9], 1305 – 1320.


Jekayinfa, S. O., and Bamgboye A. I.( 2007). Development of equipment of equation for estimating energy requirements in palm-kernel oil processing operations.  Journal of food Engineering, 79 (1): 322 – 329.


Johnson R.A. (1999). Miller and Freund’s probability and statistics for engineers. 5th Ed. New Delhi: Prentice-Hall of Indian Private Ltd.


Odigboh E.U. (1998). Machines for crop production. In: Stout B.A, editor. CIGR handbook of Agricultural Engineering. American Society of Agricultural Engineers.


Ramachandra, T.V., (1998). Energy utilization in rural mill in Karnataka. International Journal Ambient Energy, 19; 75-92. http://cat. a Modele =afficheN and cpsidt – 2321700.


Rajput R.K. (2001). Thermal engineering. New Delhi: Lami Publications (p) Ltd.


Tippayawong.N, Chaichana.C, Promwangkwa.A., and Rerkkriangkrai.P.,(2010). Gasification of cashew nut shells for thermal application in local food processing factory.Energy for Sustainable Development,doi:10.1016/j.esd.10.001


U.S.Department of energy (2005). An international projection report on energy dependence of world.  Online:


U.S Department of Energy, 2005.  Energy information administration, international energy outlook 2005.  Available on the web ( (2005).pdf.46.

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