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Energetic analysis of fruit juice processing operations in Nigeria

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  • Waheed, M.A.
  • Jekayinfa, S.O.
  • Ojediran, J.O.
  • Imeokparia, O.E.

Abstract

Energy and exergy studies were conducted in an orange juice manufacturing industry in Nigeria to determine the energy consumption pattern and methods of energy optimization in the company. An adaptation of the process analysis method of energy accounting was used to evaluate the energy requirement for each of the eight defined unit operations. The types of energy used in the manufacturing of orange juice were electrical, steam and manual with the respective proportions of 18.51%, 80.91% and 0.58% of the total energy. It was estimated that an average energy intensity of 1.12MJ/kg was required for the manufacturing of orange juice. The most energy intensive operation was identified as the pasteurizer followed by packaging unit with energy intensities of 0.932 and 0.119MJ/kg, respectively. The exergy analysis revealed that the pasteurizer was responsible for most of the inefficiency (over 90%) followed by packaging (6.60%). It was suggested that the capacity of the pasteurizer be increased to reduce the level of inefficiency of the plant. The suggestion has been limited to equipment modification rather than process alteration, which constitutes additional investment cost and may not be economical from an energy savings perspective.

Suggested Citation

  • Waheed, M.A. & Jekayinfa, S.O. & Ojediran, J.O. & Imeokparia, O.E., 2008. "Energetic analysis of fruit juice processing operations in Nigeria," Energy, Elsevier, vol. 33(1), pages 35-45.
    • Handle: RePEc:eee:energy:v:33:y:2008:i:1:p:35-45
    DOI: 10.1016/j.energy.2007.09.001
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    References listed on IDEAS

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    8. Sogut, Z. & Ilten, N. & Oktay, Z., 2010. "Energetic and exergetic performance evaluation of the quadruple-effect evaporator unit in tomato paste production," Energy, Elsevier, vol. 35(9), pages 3821-3826.
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    10. Stamp, Jane & Majozi, Thokozani, 2011. "Optimum heat storage design for heat integrated multipurpose batch plants," Energy, Elsevier, vol. 36(8), pages 5119-5131.
    11. Jafaryani Jokandan, Majid & Aghbashlo, Mortaza & Mohtasebi, Seyed Saeid, 2015. "Comprehensive exergy analysis of an industrial-scale yogurt production plant," Energy, Elsevier, vol. 93(P2), pages 1832-1851.
    12. Germina Giagnacovo & Arianna Latini & Alessandro Albanese & Alessandro Campiotti & Joaqu?n Fuentes-Pila, 2019. ""Value Stream Map" and energy consumption in agro-industrial juice fruit processing," RIVISTA DI STUDI SULLA SOSTENIBILITA', FrancoAngeli Editore, vol. 0(2 Suppl.), pages 127-142.
    13. Fadare, D.A. & Bamiro, O.A. & Oni, A.O., 2010. "Energy and cost analysis of organic fertilizer production in Nigeria," Energy, Elsevier, vol. 35(1), pages 332-340.
    14. Singh, Gurjeet & Singh, P.J. & Tyagi, V.V. & Barnwal, P. & Pandey, A.K., 2019. "Exergy and thermo-economic analysis of ghee production plant in dairy industry," Energy, Elsevier, vol. 167(C), pages 602-618.
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