In this study, the ventilation of duct is simulated by CFD and thermal changes on the seat surface are measured experimentally. These models are the improved duct and the existing one installed at the real seat in order to test the thermal change 1 minute later. The seat with the existing duct has the temperatures of 26℃ and 25℃ on lumber and femoral parts respectively. However, the seat with the improved duct has the temperature of 1℃ lower than the seat with the existing duct. This result contributes to develop the improved duct. Hereafter, the methods used in this study are expected to be useful at checking the flow resistance loss of the ventilation seat duct and assessing the flow channel design

Abstract
 1. 서 론
 2. 연구방법
  2.1 통풍시트의 구성요소
  2.2 통기성 평가를 위한 위치 선정 및 방법
  2.3 통기성 평가를 위한 Duct 단품 모델링 및 해석 방법
 3. CFD 해석 결과
  3.1 통기성 평가를 위한 Duct 해석 결과
  3.2 기존 Duct와 개선된 Duct의 해석 결과 비교
 4. 온도변화의 실험 결과
 5. 결 론
 후 기
 References

• 조호선(공주대학교 기계공학과 대학원) | Ho-Sun Cho
• 조재웅(공주대학교 기계자동차공학부) | Jae-Ung Cho Corresponding Author