Comparison of energy and exergy of food waste dryer in both reverse and non-reverse flow modes

Authors

  • Mohsen Azadbakht
  • Mohammad Rahmani MSc. Student of Bio-System Mechanical Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
  • Behrouz Dastar Professor of Department of Animal Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
  • Ebrahim Esmaeilzadeh Assistant Professor of Department of Bio-System Mechanical Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

Abstract

The increase in population growth and the demand for food supply and the high percentage of waste production in the food supply chain are among the reasons for increasing attention to the issue of waste management in the world. Due to its huge volume of important nutrients, food waste offers a lot of potential for animal feed production. The goal of this research was to examine the energy and exergy requirements for producing animal feed from food waste using a dryer in two modes: reverse flow and non-reverse flow. Food waste was dried at three temperatures of 55, 70, and 85 ° C in three times of 90, 150, and 210 minutes after the dryer was set up in two conditions of return and non-return flow. The results showed that the quantity of energy spent is decreased to one-third of the non-return state due to the reuse of output energy. Exergy waste will be decreased by up to 11.5 times. Increasing device efficiency and lowering expenses entails decreasing wasted exergy. Furthermore, the modifications in the stability index mean that the amount of pollutants produced by reverse flow will be lower.

Author Biography

Mohsen Azadbakht

Department of Biosystem Mechanical Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

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Published

2024-09-27

Issue

Vol. 26 No. 3 (2024): CIGR Journal

Section

VI-Postharvest Technology and Process Engineering