Thermal Efficaiency of Tea Manufacturing Machine I

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  • 製茶機械の熱効率(第1報)
  • 製茶機械の熱効率-1-粗揉機の熱効率
  • セイチャ キカイ ノ ネツ コウリツ 1 アラモミキ ノ ネツ コウリツ
  • Thermal Efficiency of Primary Drying Tea Roller
  • 粗揉機の熱効率

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Abstract

The heat flow and the thermal efficiency of a primary drying tea roller were examined in order to use as data for energy reduction in tea manufacture, and the results were as follows.<BR>1) The experiments were designed to operate the roller under five different conditions in the combination of air temperature and air quantity. The required heat for the primary rolling process and the thermal efficiency did not change signi-ficantly in the range of these experimental conditions.<BR>2) The required heat was calculated to be 1000 kcal/kg-green leaves and 33% of it was used as the heat of evaporation. The main heat losses were exhaust loss from a roller (34%) and that from a chimney (19%).<BR>3) Thermal efficiencies were 69.0% on the furnace and 46.5% on the primary drying tea roller, and overall efficiency was 32.3%.

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