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Energy and exergy analyses of OMW solar drying process

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  • Celma, A.R.
  • Cuadros, F.

Abstract

The energy and exergy analyses of the drying process of olive mill wastewater (OMW) using an indirect type natural convection solar dryer are presented. Olive mill wastewater gets sufficiently dried at temperatures between 34°C and 52°C. During the experimental process, air relative humidity did not exceed 58%, and solar radiation ranged from 227W/m2 to 825W/m2. Drying air mass flow was maintained within the interval 0.036–0.042kg/s. Under these experimental conditions, 2 days were needed to reduce the moisture content to approximately one-third of the original value, in particular from 3.153gwater/gdry matter down to 1.000gwater/gdry matter.

Suggested Citation

  • Celma, A.R. & Cuadros, F., 2009. "Energy and exergy analyses of OMW solar drying process," Renewable Energy, Elsevier, vol. 34(3), pages 660-666.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:3:p:660-666
    DOI: 10.1016/j.renene.2008.05.019
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    References listed on IDEAS

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    1. Tsatsaronis, George, 2007. "Definitions and nomenclature in exergy analysis and exergoeconomics," Energy, Elsevier, vol. 32(4), pages 249-253.
    2. Midilli, A. & Kucuk, H., 2003. "Energy and exergy analyses of solar drying process of pistachio," Energy, Elsevier, vol. 28(6), pages 539-556.
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    13. Nazghelichi, Tayyeb & Kianmehr, Mohammad Hossein & Aghbashlo, Mortaza, 2010. "Thermodynamic analysis of fluidized bed drying of carrot cubes," Energy, Elsevier, vol. 35(12), pages 4679-4684.
    14. Chandrasekar, M. & Senthilkumar, T. & Kumaragurubaran, B. & Fernandes, J. Peter, 2018. "Experimental investigation on a solar dryer integrated with condenser unit of split air conditioner (A/C) for enhancing drying rate," Renewable Energy, Elsevier, vol. 122(C), pages 375-381.
    15. Pirasteh, G. & Saidur, R. & Rahman, S.M.A. & Rahim, N.A., 2014. "A review on development of solar drying applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 31(C), pages 133-148.
    16. Maia, C.B. & Castro Silva, J.O. & Cabezas-Gómez, L. & Hanriot, S.M. & Ferreira, A.G., 2013. "Energy and exergy analysis of the airflow inside a solar chimney," Renewable and Sustainable Energy Reviews, Elsevier, vol. 27(C), pages 350-361.
    17. Aghbashlo, Mortaza & Mobli, Hossein & Rafiee, Shahin & Madadlou, Ashkan, 2013. "A review on exergy analysis of drying processes and systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 22(C), pages 1-22.
    18. Lamidi, Rasaq. O. & Jiang, L. & Pathare, Pankaj B. & Wang, Y.D. & Roskilly, A.P., 2019. "Recent advances in sustainable drying of agricultural produce: A review," Applied Energy, Elsevier, vol. 233, pages 367-385.
    19. Tagnamas, Zakaria & Lamsyehe, Hamza & Moussaoui, Haytem & Bahammou, Younes & Kouhila, Mounir & Idlimam, Ali & Lamharrar, Abdelkader, 2021. "Energy and exergy analyses of carob pulp drying system based on a solar collector," Renewable Energy, Elsevier, vol. 163(C), pages 495-503.
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