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http://dx.doi.org/10.7471/ikeee.2020.24.3.913

Development of Nitrogen Cooling Equipment for Personalized Local Area  

Lee, Young-Ji (Dept. Electronics Engineering, Hanbat National University)
Lee, Joo-Hyun (M1 INTERNATIONAL INC.)
Lee, Seung-Ho (Dept. Electronics&Control Engineering, Hanbat National University)
Publication Information
Journal of IKEEE / v.24, no.3, 2020 , pp. 913-916 More about this Journal
Abstract
In this paper, we propose the development of nitrogen cooling equipment for personalized local area. The proposed equipment consists of a cold air supply module, a body, and nitrogen injection with the following characteristics. First, it automatically controls the amount and time of cold air supply by utilizing information measuring skin temperature with volumetric temperature sensors, so it can have a competitive edge in function by ensuring complete safety. Second, if the distance measuring sensor is applied to the skin for more than a certain distance, it can block the cold air or control the discharge of nitrogen in conjunction with the control GUI to improve the efficiency of higher cooling therapy while providing safe management. Third, by installing a control module that can control the supply of nitrogen, the cost of maintenance can be minimized by minimizing the loss of nitrogen. Experiments at an external testing agency to evaluate the performance of the proposed equipment showed that the accuracy of the temperature sensor was measured in the range of ±3.8%, which is lower than the world's highest level(±5%), with a range of 110℃ to -160℃ similar to the world's highest level. Distance accuracy was measured in the range of ±3.0%, lower than the world's highest level(±5%), and weight accuracy in the range of ±0.1%, lower than the world's highest level(±5%). In addition, emission control was measured in four stages, higher than the world's highest level(stage 1) and nitrogen use was measured at 0.8L/min below the world's highest(6L/min). Therefore, the effectiveness of the methods proposed in this paper was demonstrated because they produced the same results as the world's highest levels.
Keywords
Nitrogen Cooling; Personalized Local Area; Accuracy of Temperature Sensor; Temperature Range; Accuracy of Distance; Accuracy of Weight; Emission Control; Nitrogen Usage;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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