Thermal Efficiency of a Secondary Tea Dryer for Kamairi-cha

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  • 水乾機の熱効率
  • スイカンキ ノ ネツ コウリツ

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Abstract

The heat flow and thermal efficiency of a secondary tea dryer for kamairi-cha were examined in the case of using in a secondary tea drying and a final tea drying. The required heat for green tea leaves was calculated to be about 2,300(kJ/kg) for the secondary tea drying, about 960(kJ/kg) for the final tea drying, of which 19.4(%) for the secondary tea drying , 22.3(%) for the final tea drying was used as the heat of evaporation. The thermal efficiency of the secondary tea dryer for kamairi-cha did not change under the range of experimental condition used. Thermal efficiency of a secondary tea dryer for kamairi-cha was 19.5(%) for the secondary tea drying, 22.2(%) for the final tea drying.

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