압전구동기에 의한 열전냉각시스템의 냉각영역 성능 개선에 관한 연구
- Author(s)
- 최제세
- Issued Date
- 2009
- Abstract
- This study focused on improving of cooling performance of thermoelectric cooling system by piezoelectric actuator. The temperature distribution was measured and thermo-flow phenomenon was visualized in the cold region of thermoelectric cooling system when the piezoelectric actuator wasn't operated and was operated with frequency of 90㎐, 120㎐ and 150㎐.
The experimental device for measuring temperature distribution consisted of the thermoelectric cooling device, the piezoelectric actuator, thermocouple, data acquisition unit and PC. Temperature distribution of cold region between thermoelectric cooling system and piezoelectric actuator was visualized without and with the piezoelectric actuator as 90㎐, 120㎐ and 150㎐, and also coefficient of performance was calculated in respective conditions.
The experimental device for visualization consisted of the thermoelectric cooling device, the piezoelectric actuator, He-Ne laser, CCD camera, image grabber, optic lens and PC. Thermo-flow phenomenon of cold region between thermoelectric cooling system and piezoelectric actuator was visualized without and with the piezoelectric actuator.
As a results of measuring temperature distribution and calculating coefficient of performance, vibration from piezoelectric actuator was improved the cooling performance of the thermoelectric cooling system, but quantity of improvement was different in accordance with frequency.
When the result of measuring temperature distribution was compared with the result of flow visualization, the cold air in cold region was actively circulated in cold region by compulsive convection generated from piezoelectric actuator. As the result, cooling performance of cold region was improved.
- Alternative Title
- A Study on Improving the Performance of Cooling Region of Thermoelectric Cooling System by Piezoelectric Actuators
- Alternative Author(s)
- Choi, Je Se
- Affiliation
- 조선대학교 대학원 첨단부품소재공학과
- Department
- 일반대학원 첨단부품소재공학과
- Advisor
- 오율권
- Awarded Date
- 2010-02
- Table Of Contents
- 제 1 장 서 론 1
1.1 연구배경 1
1.2 연구목적 및 내용 5
제 2 장 이 론 해 석 6
2.1 열전현상 해석 6
2.1.1 Seebeck 효과 6
2.1.2 Peltier 효과 7
2.1.3 Thomson 효과 7
2.1.4 p형과 n형 반도체의 계수 관계 8
2.2 열전소자의 성능 해석 8
제 3 장 실험장치 및 실험방법 12
3.1 실험장치 12
3.1.1 열전냉각시스템 12
3.1.2 압전구동기 18
3.1.3 온도측정 실험장치 20
3.1.4 유동가시화 실험장치 21
3.2 실험방법 22
3.2.1 온도측정 방법 22
3.2.2 유동가시화 방법 25
제 4 장 실험 결과 및 고찰 27
4.1 온도측정 결과 27
4.1.1 열전냉각시스템 ON, 압전구동기 OFF 27
4.1.2 열전냉각시스템 ON, 압전구동기 90㎐ 30
4.1.3 열전냉각시스템 ON, 압전구동기 120㎐ 34
4.1.4 열전냉각시스템 ON, 압전구동기 150㎐ 38
4.2 유동 가시화 결과 43
4.2.1 열전냉각시스템 ON, 압전구동기 OFF 43
4.2.2 열전냉각시스템 OFF, 압전구동기 ON 46
4.2.3 열전냉각시스템 ON, 압전구동기 ON 49
제 5 장 결 론 51
참 고 문 헌 53
- Degree
- Master
- Publisher
- 조선대학교
- Citation
- 최제세. (2009). 압전구동기에 의한 열전냉각시스템의 냉각영역 성능 개선에 관한 연구.
- Type
- Dissertation
- URI
- https://oak.chosun.ac.kr/handle/2020.oak/8546
http://chosun.dcollection.net/common/orgView/200000239435
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