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Thin-layer drying of cassava chips in multipurpose convective tray dryer: Energy and exergy analyses

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Abstract

Energy and exergy data of the drying of thin-layer cassava (Manihot esculenta) chips in a multipurpose convective-type tray dryer at 50 °C were collected to evaluate the technical performance of the drying system. The energy and exergy parameters, i.e. energy utilization, energy utilization ratio, energy efficiency, exergy inflow and outflow, exergy loss, and ex-ergetic efficiency were analyzed. The results indicate that the energy utilization, exergy inflow, exergy outflow, and exergy efficiency increased in the ranges of 9.53–24.66 kJ/s, 5.67–11.34 kJ/s, 2.21–8.04 kJ/s, and 38.90 %270.86 %, respectively, with increasing drying time. The results also show that the energy utilization ratio, energy efficiency, and exergetic improvement potential tend to decrease in the ranges of 0.49–0.68, 47.48 %–62.62 %, and 0.96–2.33 kJ/s, respectively, with increasing drying time. Additionally, stable exergy losses were observed during the drying process, within the range of 3.30–4.27 kJ/s during drying. Further research and development that could be used to improve the performance of this drying process are also suggested.

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Authors and Affiliations

  1. Department of Agricultural Engineering, Universitas Brawijaya, Malang, East Java Province, 65145, Indonesia

    Bambang Dwi Argo & Ubaidillah Ubaidillah

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  1. Bambang Dwi Argo
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  2. Ubaidillah Ubaidillah
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Correspondence to Bambang Dwi Argo.

Additional information

Recommended by Editor Yong Tae Kang

Bambang Dwi Argo is Associate Professor at Department of Agricultural Engineering, Universitas Brawijaya, Malang, Indonesia. He received his B.Eng. in Agricultural and Biosystems Engineering from Bogor Agricultural University, Indonesia in 1984. He received his M. Eng. in System and Energy Engineering from Université de Perpignan, France in 1989. He then received his Ph.D. degree in Energy from Institut National des Sciences Appliquées (INSA) Toulouse, France in 1994.

Ubaidillah Ubaidillah is Lecturer and Research Associate at Department of Agricultural Engineering, Universitas Brawijaya, Malang, Indonesia. He received his B.Eng. in Agricultural and Biosystems Engineering from Universitas Brawijaya, Indonesia in 2011. He then received his M.S. in Agricultural and Biosystems Engineering from Institute Pertanian Bogor, Indonesia in 2016.

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Argo, B.D., Ubaidillah, U. Thin-layer drying of cassava chips in multipurpose convective tray dryer: Energy and exergy analyses. J Mech Sci Technol 34, 435–442 (2020). https://doi.org/10.1007/s12206-019-1242-9

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  • DOI: https://doi.org/10.1007/s12206-019-1242-9

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