한국식품과학회지 (Korean Journal of Food Science and Technology)
- 제23권4호
- /
- Pages.437-441
- /
- 1991
- /
- 0367-6293(pISSN)
급액속도가 원심식 박막증발기의 운전 특성에 미치는 영향
Effect of Feeding Rate for Operation Properties of Centrifugal Thin Film Evaporator
- Kim, Byeong-Sam (Korea Food Research Institute) ;
- Park, Noh-Hyun (Korea Food Research Institute) ;
- Park, Moo-Hyun (Korea Food Research Institute) ;
- Han, Bong-Ho (Department of Food Science and Technology, National Fisheries University of Pusan)
- 발행 : 1991.08.01
초록
원심식 박막증발기를 이용해 마늘착즙을 증발 농축하면서 급액속도가 증발표면에서의 액의 흐름상태와 운전 특성에 미치는 영향에 대해서 조사하였다. 급액속도
During the evaporation of garlic juice by centrifugal thin film evaporator (Centri-Therm, CT-1B), the effect of feeding rate was investigated for its operation properties. On the process condition of feeding rate of 25 to 125 kg/h, theoretical average thickness of the garlic juice film on the rotating cone and residence time of the juice in the evaporator varied in the range of 0.52 to 0.89 mm and 1.77 to 6.75 second, respectively. And the flow of garlic juice was considered as a streamline flow by Reynolds number. At constant temperatures of steam and juice evaporation, concentration ratio decreased with the increase of the feeding rate. But the evapoartion rate and overall heat transfer coefficient increased with the increase of the feeding rate until the feeding rate reached a certain value and then decreased. On the conditions of