2018 Volume 35 Issue 3 Pages 181-
The objective of this study is to clarify the temperature and humidity distribution in the desiccant rotor. Thus we focused on the small sensors for “Internet of Things”. By installing the small sensor in the desiccant rotor, continuous measurement inside the rotating material become possible. First part of this report, correcting method for sensor response delay when temperature and humidity input were changed was examined. We conducted an evaluation test to obtain the delay characteristics of the small sensors. The results of the test, the response delay showed the same characteristics regardless of the differences in air temperature and humidity. The correction equations for the temperature and humidity were obtained. Second part of this report, adsorption/desorption measuring test was conducted. To clarify the humidity distribution, a desiccant rotor with small sensors was created. Two sensors were buried at 5mm points from each surfaces of rotor. As shown in Fig.A-1, the amount of dehumidification increased by increasing the rotational speed. Fig.A-2 shows temperature and humidity distribution in the circumferential direction of desiccant rotor. In this case, it can be seen the temperature distributions were agreed with values measured with fixed thermocouples. In addition, the distributions of absolute humidity due to the change in rotational speed was clarified. The peaks of absorption/desorption are shifted backward by increasing of the rotational speed. Also, breakthrough was confirmed in the regeneration zone under the condition of 7 rph.
