Drying Food Waste Using a Conventional Tray Cabinet Dryer

Document Type : Original Research

Authors

1 Department of Biosystems, Eghlid Branch, Islamic Azad University, Eghlid, Iran.

2 Agricultural Engineering Research Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran.

Abstract

In order to reduce leachate from food waste a conventional tray cabinet dryer was designed and built, and the drying process of these wastes was investigated. A 2.7 kW heater equipped with an axial fan was used as the heating source. The experiments were performed at three temperatures of 50, 60, and 70 °C and three air velocities of 1, 1.5, and 2 m/s with a thickness of 3 cm. A conventional tray was used for drying. The Drying kinetics, effective moisture diffusivity and activation energy during drying of food waste were obtained. Results showed that improving air distribution in the back of the tray and no passing air on the sides of the tray causes that increase the drying rate significantly. The minimum drying process was occurred in temperature of 70°C and air velocity of 2 m/s at the 120 min. Effective moisture diffusivity of waste food during the drying process was in the range of 2.74×10-9-3.65×10-8 m2/s. The values for activation energy have ranged from a minimum of 21.6 kJ/mol in 1.5 m/s air velocity up to a maximum of 64.0 kJ/mol in 2m/s air velocity.

Keywords


REFRENCES
Aghbashlo, M., Kianmehr, M., & Samimi-Akhijahani, H. (2008). Influence of DryingConditions on the Effective Moisture Diffusivity, Energy of Activation and Energy Consumption During the Thin-layer Drying of Berberis Fruit (Berberidaceae). Energy Con Manag, 49, 2865-2871. https://doi.org/10.1016/j.enconman.2008.03.009
Akpan, G. E., Onwe, D. N., Fakayode, O. A., & Offiong, U. D. (2016). Design and Development of an Agricultural and Bio-materials Cabinet Tray dryer. Science Research, 4(6), 174-182. https://doi.org/10.11648/j.ijfet.20160201.14
Al-Harahsheh, M., Ala’a, H., & Magee, T. (2009). Microwave drying kinetics of tomato pomace: Effect of osmotic dehydration. Chemical Engineering and Processing: Process Intensification, 48(1), 524-531. https://doi.org/10.1016/j.cep.2008.06.010
Alibas, I. (2007). Energy consumption and colour characteristics of nettle leaves during microwave, vacuum and convective drying. Biosystems Engineering, 96(4), 495-502. https://doi.org/10.1016/j.biosystemseng.2006.12.011
AOAC. (1990). Official methods of analysis (15th Edn). Association of Official Analytical Chemists.Washington DC, USA.
Arslan, D., & Özcan, M. M. (2010). Study the effect of sun, oven and microwave drying on quality of onion slices. LWT-Food Science and Technology, 43(7), 1121-1127. https://doi.org/10.1016/j.lwt.2010.02.019
Darvishi, H. (2012). Energy consumption and mathematical modeling of microwave drying of potato slices. Agricultural Engineering International: CIGR Journal, 14(1), 94-102.
Ehiem, J., Irtwange, S., & Obetta, S. (2009). Design and development of an industrial fruit and vegetable dryer. Research Journal of Applied Sciences, Engineering and Technology, 1(2), 44-53.
El-Sebaii, A., Aboul-Enein, S., Ramadan, M., & El-Gohary, H. (2002). Empirical correlations for drying kinetics of some fruits and vegetables. Energy, 27(9), 845-859. https://doi.org/10.1016/S0360-5442(02)00021-X
Ghasemkhani, H., Rafiei, S., Kayhani, A., & Dalvand, M. (2018). Evaluation of drying apple slices using a rotary dryer equipped with a heat exchanger. Journal of Agricultural Machinery Mechanical Research, 7(2), 9-19.
Hosseini, F., Shakiba, R., Rezvani, Z., & Arslan, S. (2023). Investigating the Kinetics, Energy and Exergy of Drying Apple slices Using Infrared Radiation. Biomechanism and Bioenergy Research, 2(1), 1-10. https://doi.org/10.22103/BBR.2023.21678.1043
Ikem, I., Osim, A., Nyong, O., & Takim, S. (2016). Determination of loading capacity of a direct solar boiler dryer. International Journal of Engineering and Technology, 8, 1386-1396.
Jo, J.-H., Kim, S.-S., Shim, J.-W., Lee, Y.-E., & Yoo, Y.-S. (2017). Pyrolysis characteristics and kinetics of food wastes. Energies, 10(8), 1191. https://doi.org/10.3390/en10081191
Kim, B.-S., Kang, C.-N., & Jeong, J.-H. (2014). A study on a high efficiency dryer for food waste. Korean Society for Power System Engineering, 18(6), 153-158. https://doi.org/10.9726/kspse.2014.18.6.153
Liu, Y., Peng, J., Kansha, Y., Ishizuka, M., Tsutsumi, A., Jia, D., . . . Sokhansanj, S. (2014). Novel fluidized bed dryer for biomass drying. Fuel Processing Technology, 122, 170-175. https://doi.org/10.1016/j.fuproc.2014.01.036
Lopez, A., Iguaz, A., Esnoz, A., & Virseda, P. (2000). Thin-layer drying behaviour of vegetable wastes from wholesale market. Drying technology, 18(4-5), 995-1006. https://doi.org/10.1080/07373930008917749
Meziane, S. (2011). Drying kinetics of olive pomace in a fluidized bed dryer. Energ. Convers. Manage, 52, 1644-1649.
Motevali, A., Abbaszadeh, A., Minaei, S., Khoshtaghaza, M., & Ghobadian, B. (2012). Effective moisture diffusivity, activation energy and energy consumption in thin-layer drying of Jujube (Zizyphus jujube Mill). Journal of Agricultural Science and Technology, 14(3), 523-532. https://doi.org/20.1001.1.16807073.2012.14.3.10.4
Nijmeh, M., Ragab, A., Emeish, M., & Jubran, B. (1998). Design and testing of solar dryers for processing food wastes. Applied thermal engineering, 18(12), 1337-1346. https://doi.org/10.1016/S1359-4311(98)00002-7
Nzioka, A. M., Hwang, H. U., Kim, M. G., Troshin, A. G., CaoZheng, Y., & Kim, Y. J. (2016). Experimental investigation of drying process for mixed municipal solid waste: Case study of wastes generated in Nairobi, Kenya. Int'l Journal of Advances in Agricultural & Environmental Engg.(IJAAEE) Vol, 3(1), 2349-1523. https://doi.org/10.15242/IJAAEE.ER01160039
Ojediran, J. O., Okonkwo, C. E., Adeyi, A. J., Adeyi, O., Olaniran, A. F., George, N. E., & Olayanju, A. T. (2020). Drying characteristics of yam slices (Dioscorea rotundata) in a convective hot air dryer: Application of ANFIS in the prediction of drying kinetics. Heliyon, 6(3). https://doi.org/10.1016/j.heliyon.2020.e03555
Rostami Baroji, R., Seiiedlou Heris, S., & Dehghannya, J. (2017). Mathematical simulation of heat and mass transfer in convectional drying of carrot, pretreated by ultrasound and microwave. Journal of Agricultural Machinery, 7(1), 97-113. https://doi.org/10.22067/jam.v7i1.38881
Shirinbakhsh, M., & Amidpour, M. (2017). Design and optimization of solar-assisted conveyer-belt dryer for biomass. Energy Equipment and Systems, 5(2), 85-94. https://doi.org/10.1016/j.fuproc.2014.01.036
Tahmasebi, M., Tavakkoli Hashjin, T., Khoshtaghaza, M., & Nikbakht, A. (2011). Evaluation of thin-layer drying models for simulation of drying kinetics of quercus (Quercus persica and Quercus libani). Journal of Agricultural Science and Technology, 13(2), 155-163. https://doi.org/20.1001.1.16807073.2011.13.2.1.6
Togrul, I. T., & Pehlivan, D. (2002). Mathematical modelling of solar drying of apricots in thin layers. Journal Food Eng, 55, 209–216.
Yaldiz, O., Ertekin, C., & Uzun, H. I. (2001). Mathematical modeling of thin layer solar drying of Sultana grapes. Energy, 26(5), 457-464.