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논문 기본 정보

자료유형
학술저널
저자정보
명재원 (Chungnam National University) 맹주영 (Chungnam National University) 김영준 (Chungnam National University) 조경민 (Chungnam National University) 이웅희 (Hanwha Corporation Defense R&D Center) 김성호 (Hanwha Corporation Defense R&D Center) 박영철 (Agency for Defense Development) 손영구 (Chungnam National University) 신원규 (Chungnam National University)
저널정보
한국가시화정보학회 한국가시화정보학회지 한국가시화정보학회지 Vol.19 No.3
발행연도
2021.12
수록면
84 - 91 (8page)

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초록· 키워드

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Effervescent tablets generate gas bubbles when chemical reaction occurs between water and tablets. Most of previous studies have been focused on pharmaceutical characteristics of tablets. However, for their applications in disinfectants, cleaners, and pesticides, physical characteristics of bubbles released from the effervescent tablets when they are in water are important. In this study, we experimentally investigated the characteristics of microbubbles generated by an effervescent tablet made of sodium bicarbonate and tartaric acid using PDPA and high-speed camera. Microbubbles were generated using different weights of effervescent tablet as well as in different water temperature. The experimental study shows increase in reaction time, bubble concentration and rise velocity as the weight of effervescent tablet increases from 1 to 20 g. The decrease in average bubble diameter was observed when the temperature of water increased from 25 to 45 ℃. Further, reaction time varies inversely with increase in water temperature, while bubble rise velocity is directly proportional to increase in water temperature. Effervescent table continuously generates the bubble with approximately constant diameter (235 μm) in the water. However, bubble concentration and bubble rise velocity decreased over time.

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Abstract
1. 서론
2. 실험 방법
3. 실험 결과 및 분석
4. 결론
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