표제지
초록
목차
제1장 서론 11
제1절 연구의 배경 11
제2절 연구의 목적 15
제2장 방법 16
제1절 피험자 16
제2절 실험 환경 및 장치 구성 18
2.1. 복사 히터 18
2.2. 차량 모형 20
제3절 실험 조건 22
제4절 실험 과정 및 측정 항목 23
4.1. 실험 의복 23
4.2. 실험 프로토콜 23
4.3. 측정 항목 25
제5절 데이터 분석 31
제3장 결과 32
제1절 인체 생리 반응 32
1.1. 직장온 32
1.2. 피부온 33
1.3. 의복내 온습도 39
1.4. 불감증설 40
1.5. 피부수분도 41
1.6. 혈압 41
1.7. 심박변이도 42
제2절 주관적 감각 45
2.1. 한서감 45
2.2. 온열쾌적감 49
2.3. 건조감 53
2.4. 전율이 느껴진 부위 57
2.5. 졸음 척도 59
제3절 상관 분석 60
3.1. 인체 생리 반응 및 주관적 감각 간의 상관 60
3.2. 주관적 감각 간의 상관 65
제4절 소비 전력량 대비 주관감 66
제4장 논의 68
제1절 국부 복사 히터의 최적 가온 조합 도출 68
제2절 인체 생리 반응 및 주관적 감각의 상관 관계 79
제3절 제한점 83
제5장 결론 85
참고 문헌 86
Abstract 92
Table 2.1. Anthropometric and physical characteristics of the subjects in the present study 17
Table 2.2. Experimental conditions 22
Table 2.3. Experimental clothing 24
Table 3.1. Changes of mean skin temperature among the 8 conditions 38
Table 3.2. Insensible perspiration among the 8 conditions 40
Table 3.3. Skin hydration at forehead and hand among the 8 conditions 43
Table 3.4. Blood pressure among the 8 conditions 44
Table 3.5. Whole body thermal sensation among the 8 conditions 48
Table 3.6. Whole body thermal comfort among the 8 conditions 52
Table 3.7. Whole body dryness sensation among the 8 conditions 56
Table 3.8. Correlation coefficients between physiological responses (rectal temperature or mean skin temperature) and subjective responses (whole body... 60
Table 3.9. Correlation coefficients between skin temperature and subjective responses of heating body region: The Thighs, knees, and feet. 61
Table 3.10. Correlation coefficients between physiological responses (rectal temperature or mean skin temperature) and subjective responses of heating body... 62
Table 3.11. Correlation coefficients between whole body subjective responses and skin temperature of heating body region: The Thighs, knees, and feet. 63
Table 3.12. Correlation coefficients between heart rate variability and subjective responses 64
Table 3.13. Correlation coefficients between whole body subjective responses and subjective responses of heating body region: The Thighs, knees, and feet. 65
Figure 2.1. 300 cm² and 600 cm² carbon nanotube films of radiant heater (a), radiant heaters for laboratory experiments (b), and thermographic images (c). 19
Figure 2.2. Mock-up vehicles for laboratory experiments (a) and radiant heater location: The thighs (b), knees (c), and feet (d). 21
Figure 2.3. Experimental protocol and measurement intervals. 27
Figure 2.4. Experiment images: 25℃ Rest (a), -5℃ Walking (b), and 5℃ Driving (c). 27
Figure 2.5. Sensor attachment and experimental equipment. 28
Figure 2.6. Subjective responses measurements: Thermal sensation, thermal comfort, dryness sensation (a), shivering (b), and sleepiness scale (c). 30
Figure 3.1. Time courses of rectal temperature among the 8 conditions. 32
Figure 3.2. Time courses of mean skin temperature among the 8 conditions. 35
Figure 3.3. Time courses of head and upper body skin temperature among the 8 conditions: The Forehead (a), chest (b), abdomen (c), upper back (d), forearm (e),... 36
Figure 3.4. Time courses of lower body skin temperature among the 8 conditions: The Thigh (a), knee (b), calf (c), and foot temperature (d). 37
Figure 3.5. Time courses of clothing microclimate among the 8 conditions: clothing temperature (a), clothing humidity (b). 39
Figure 3.6. Time courses of heart rate variability among the 8 conditions: SDRR (a), RMSSD (b), pRR50 (c), and LF/HF (d). 42
Figure 3.7. Time courses of thermal sensation among the 8 conditions (Mean ± SD): Whole body (a), thighs (b), knees (c), and feet (d). 47
Figure 3.8. Time courses of thermal comfort among the 8 conditions (Mean ± SD): Whole body (a), thighs (b), knees (c), and feet (d). 51
Figure 3.9. Time courses of dryness sensation among the 8 conditions (Mean ± SD): Whole body (a), thighs (b), knees (c), and feet (d). 55
Figure 3.10. Frequency of shivering among the 8 conditions: 5℃ Driving Heater On (a), 5℃ Driving Heater Off (b). 58
Figure 3.11. Time courses of sleepiness scale among the 8 conditions (Mean ± SD). 59
Figure 3.12. Energy consumption of eight conditions compared to whole body subjective responses at 29 min radiant heating: Thermal sensation (a) and thermal... 67