Energy transfer analysis of the SH626 sheet rotary dryer on the production system perspective

Abstract

The energy transfer process occurred at all stages of the production system and could demonstrate potential changes in the state of the system during production. The cut tobacco production process also would require a large amount of heat energy to make a high-quality product. Based on the energy balance analysis of the SH626 dryer, the energy consumption of the tobacco drying process was the highest unit, which accounts for approximately 60% of the energy consumption of the whole tobacco production process. The energy transfer efficiency of the sheet heating system was only 0.46 ∼ 0.58 and was mainly influenced by the working temperature of thin plates. The energy transfer efficiency of the hot air heating system was 0.24 ∼ 0.33 and was influenced by the hot air mass flow rate. The energy transfer system remained low levels of energy transfer efficiency and had great potential for saving energy. Those conclusions of this study could provide a theoretical basis to improve dryer system energy transfer efficiency by the thermal integrated system and the intelligent control system.