Dew point measurement for organic vapor mixture using a quartz crystal sensor |
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| Affiliation: | 1. Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3Aoba, Sendai 980-8578, Japan;2. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 1-1, Sendai 980-8577, Japan;3. World Premier International Research Center, Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Katahira 2-1-1, Aobaku, Sendai 980-8577, Japan;4. Institute of Experimental and Applied Physics, Kiel University, Olshausenstr. 40, 24098 Kiel, Germany;5. Ishinomaki Senshu University, Minamisakai, Shinmito-1, Ishinomaki 986-8580, Japan;1. Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China;2. Key laboratory for traffic and transportation security of Jiangsu Province, Huaiyin Institute of Technology, Huaian 223003, China |
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| Abstract: | A dew point measurement device for organic vapor mixtures using a quartz crystal sensor was proposed, and its performance was examined with acetone–methanol mixtures. The device has a sensor module to accommodate the quartz crystal sensor and a cooling system. The variation in resonant frequency of the sensor indicates the condensation of sample vapor, which tells the beginning moment of condensation, i.e., dew point. The measurement results with the proposed device were compared with the predicted dew points from the UNIQUAC equation and other experimental outcome to examine the performance of the device. Though some measurement error was yielded, it is proved that the proposed device is useful for measuring the dew points of organic vapors at different pressures. |
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