Studies on the Withering-machine

概要

論文の詳細を見る
A tea withering machine of rotary throughflow dryer type was designed and constracted as shown in Fig. 1. The effects of various factors on the withering rate were investigated. The effects of charge (F: kg. (green leaves)) and air rate (G: kg./hr.) on the withering rate (W: kg. (water/hr.)) were expressed by the following equation, W=α F0.5G1.5 The coefficient α was affected by air temperature. The qualities of black tea made by this withering machine were compared with those of the standard method. And it was proved that the tea made by this withering machine had the, same qualities as those of standard method, when withering conditions were as fallows. air temperature 40°C. air rate 2000 kg./hr. charge of green leaves 30 kg. rotation 2 r.p.m.
日本茶業技術協会の論文