Earticle

초록

영어

Equipment used for ships operating in the polar regions, such as icebreakers, should consider countermeasures against freezing. This study performed a structural design that prevents freezing and tolerates thermal stress and wind pressure of the air vent louver heating blades. As boundary conditions for performing the analysis, analysis was performed when the flow rates at the inlet end were 10m/s, 20m/s 30m/s, 40m/s, and 50m/s. As a result of the analysis, if the CNT heating element can maintain the heating performance of 200°C, the blade can maintain the room temperature state except for the end of about 40mm. There are pressure drop between the front and rear of the air vent louver. It can be seen that the allowable wind speed varies depending on the design criteria. As a results, it is required to select an optimal heating temperature to prevent condensation of a blade, optimize the generation of compressive stress by thermal expansion, and trade off the wind pressure and thermal stress according to wind speed.

목차

ABSTRACT
1. 서론
2. 개발대상 기술 개요
2.1 에어벤트루버통풍구 형상
2.2 에어벤트루버통풍구의 세부 구조 검토
3. 수치해석
3.1 발열체의 발열에 의한 열전달해석
3.2 유속을 고려한 유동해석
3.3 풍압력과 열하중을 고려한 구조강도해석
4. 해석 결과 및 분석
4.1 열전달해석 결과 및 분석
4.2 유동해석 결과 및 분석
4.3 구조강도해석 결과 및 분석
5. 결론
후기
References

키워드

면상발열체 극지운항선박 방빙 공기환기구 탄소나노튜브 변형 열전달 유동해석 Surface heating element Polar ship Anti-icing Air vent louver Carbon nano tube Deformation Heat transfer Flow analysis

저자

• 이재기 [ Jae-Gi Lee | Member, Director of research and development dept. Sungwon Electric., Ltd ] Corresponding Author

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