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KMID : 0380619900220040479
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Korean Journal of Food Science and Technology
1990 Volume.22 No. 4 p.479 ~ p.485
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Manufacture of Control and Data Acquisition System of Centrifugal Thin Film Evaporator(Centri - Therm , CT - 1B) by Computer
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박무현/Park, Moo Hyun
한봉호/김병삼/배태진/박노현/Han, Bong Ho/Kim, Byeong Sam/Bae, Tae Jin/Park, Noh Hyun
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Abstract
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For the automation of a evaporation process, computer based evaporation system was built and applied to acquisition of the process variables with an centrifugal thin film evaporator(Centri-Therm, CT-1B). Controls of the process conditions were performed by computer system for pressure, feeding rate, steam, evaporation temperature and flow rate of cooling water. The data acquisitions were also performed by computer system for the changes in the concentration and temperature readings for steam, evaporation and cooling water at the both inlet and outlet. The control and the acquisition variables were collected through the interface device and analyzed by programs using the PASCAL language. To control the feeding rate during the concentration process, inverter was used. The cooling water for the vapor condensation was controlled by the valve controller and should be supplied with the flow rate of 125 kg/h. The maximum vapor condensation rate was 41. kg/h at the feeding rate of 125 kg/h.
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