8-11 2021 [춘계학술대회]
| 제목 | 전기자동차용 6 kW급 CNT 히터의 내열 구조강도 해석 설계 |
|---|---|
| 분야 | 모빌리티 동력 및 구동시스템 |
| 언어 | Korean |
| 저자 | 배석정( 한국자동차연구원), 이현석( 한국자동차연구원), 이준용( 한국자동차연구원), 허형석( 한국자동차연구원), 이병호(덕일산업), 김영삼(덕일산업) |
| Key Words | Cabin Heater(난방 히터), Electric Vehicle(전기자동차), Carbon Nano Tube(탄소나노튜브), Structural Strength Analysis(구조강도 해석), Thermal Stress Analysis(열응력 해석) |
| 초록 |
Since electric vehicles lack of heat source as engine of internal combustion vehicles, additional electric heaters have to be used for cabin heating in winter. Thus PTC heaters, which heat air entering cabin by electric heating, are generally used in electric vehicles. However, the existing type of heaters require so high power consumption that the mileages of electric vehicles significantly decreases. Carbon nano tube heating elements generates heat to distribute temperature uniformly in their film geometries and improves heat-up rate compared to conventional PTC elements with their high thermal conductivity as described in our previous study dealt with performance assessment of the heaters. In this study, CNT heater alone model and controller integrated model with an additional controller part on the heater have been modeled and thermal stress analysis has been performed to ensure stability against thermal stress caused by temperature differences in comparison. The controller integrated model shows slightly lower maximum stress than heater alone model, which both model have the maximum values within the ranges of yield strength of the materials |
| 원문(PDF) | 다운로드 |