표제지
목차
Abstract 13
제1장 서론 14
1.1. 연구 배경 14
1.2. 연구 동향 15
1.3. 연구 내용 및 범위 21
제2장 실험과 전산시뮬레이션 조건 및 방법 23
2.1. 실험 23
2.1.1. 실험 장치 23
2.1.2. 실험 조건 및 방법 28
2.2. 전산시뮬레이션 33
2.2.1. 전산시뮬레이션 조건 33
2.2.2. 전산시뮬레이션 방법 37
제3장 실험과 전산시뮬레이션 결과 41
3.1. 열방출률 영향: 실험 및 전산시뮬레이션 42
3.1.1. 유동 속도 분포 42
3.1.2. 질량 유량 45
3.1.3. 구획실 내 온도 분포 47
3.1.4. 고온 가스층 두께 및 온도 상승 52
3.1.5. 열방출률에 대한 고온 가스층 두께 및 온도 상승의 의존성 59
3.1.6. 실험 및 전산시뮬레이션 결과 간 비교 63
3.2. 구획실 벽면 재질 영향: 전산시뮬레이션 66
3.2.1. 유효 열전달 계수 66
3.2.2. 유동 속도 분포 69
3.2.3. 질량 유량 71
3.2.4. 구획실 내 온도 분포 73
3.2.5. 고온 가스층 두께 및 온도 상승 78
3.3. 수직 개구부(VO1) 너비 영향: 전산시뮬레이션 81
3.3.1. 유동 속도 분포 81
3.3.2. 질량 유량 83
3.3.3. 구획실 내 온도 분포 85
3.3.4. 고온 가스층 두께 및 온도 상승 90
3.4. 수직 개구부(VO2) 너비 영향: 전산시뮬레이션 93
3.4.1. 유동 속도 분포 93
3.4.2. 질량 유량 95
3.4.3. 구획실 내 온도 분포 97
3.4.4. 고온 가스층 두께 및 온도 상승 102
3.5. 화재실 및 인접실 내 고온 가스층 온도 상승 예측 105
3.5.1. 기존 인접실 내 고온 가스층 온도 상승 상관식 검토 105
3.5.2. 고온 가스층 온도 상승 상관식 제안 109
제4장 결론 113
후기 117
참고문헌 118
Table 2.1. Summary of Experimental Conditions 31
Table 2.2. Summary of Fire Source Conditions 32
Table 2.3. Summary of Numerical Simulation Conditions 36
Table 3.1. MPE and MAPE of Experiment and Numerical Simulation 65
Table 3.2. Properties of Compartment Wall Material 68
Table 3.3. Numerical Simulation Conditions of Johansson and Van Hees 106
Table 3.4. Constants of Proposed Correlations for Prediction of Hot Gas Layer Temperature Rise 111
Figure 1.1. Flow chart of this study. 22
Figure 2.1. Experimental setup. 25
Figure 2.2. Locations of temperature measurements. 26
Figure 2.3. Locations of velocity measurements in vertical opening for experiment. 27
Figure 2.4. Fuel pan. 30
Figure 2.5. Schematic diagram of numerical simulation. 34
Figure 2.6. Locations of velocity measurements in vertical opening for numerical simulation. 39
Figure 2.7. Grid sensitivity test results for temperature in HRR_1.32&ROOM2_F&W₁_330&W₂_330&PC+AL. 40
Figure 3.1. Effect of HRR on velocity distribution of experiment and numerical simulation for ROOM1_F and ROOM2_F. 43
Figure 3.2. Visualization of velocity distribution for ROOM1_F and ROOM2_F. 44
Figure 3.3. Effect of HRR on discharge mass flow rate. 46
Figure 3.4. Effect of HRR on temperature distribution of experiment and numerical simulation for ROOM1_F(TC1~2). 48
Figure 3.5. Effect of HRR on temperature distribution of experiment and numerical simulation for ROOM1_F(TC3~8). 49
Figure 3.6. Effect of HRR on temperature distribution of experiment and numerical simulation for ROOM2_F(TC1~2). 50
Figure 3.7. Effect of HRR on temperature distribution of experiment and numerical simulation for ROOM2_F(TC3~8). 51
Figure 3.8. Effect of HRR on temperature distribution of experiment and numerical simulation in ROOM1 and ROOM2(TC5~8). 53
Figure 3.9. Effect of HRR on hot gas layer thickness and temperature rise of experiment and numerical simulation in fire room. 55
Figure 3.10. Effect of HRR on total discharge mass flow rate from fire room. 56
Figure 3.11. Effect of HRR on hot gas layer thickness and temperature rise of experiment and numerical simulation in adjacent room. 58
Figure 3.12. Dependence of hot gas layer thickness and temperature rise on HRR in fire room. 61
Figure 3.13. Dependence of hot gas layer thickness and temperature rise on HRR in adjacent room. 62
Figure 3.14. Difference between experiment and numerical simulation data. 64
Figure 3.15. Effect of compartment wall material on velocity distribution. 70
Figure 3.16. Effect of compartment wall material on discharge mass flow rate. 72
Figure 3.17. Effect of compartment wall material on temperature distribution for ROOM1_F(TC1~2). 74
Figure 3.18. Effect of compartment wall material on temperature distribution for ROOM1_F(TC3~8). 75
Figure 3.19. Effect of compartment wall material on temperature distribution for ROOM2_F(TC1~2). 76
Figure 3.20. Effect of compartment wall material on temperature distribution for ROOM2_F(TC3~8). 77
Figure 3.21. Effect of compartment wall material on hot gas layer thickness. 79
Figure 3.22. Effect of compartment wall material on hot gas layer temperature rise. 80
Figure 3.23. Effect of VO1 width on velocity distribution for ROOM1_F and ROOM2_F. 82
Figure 3.24. Effect of VO1 width on discharge mass flow rate. 84
Figure 3.25. Effect of VO1 width on temperature distribution for ROOM1_F(TC1~2). 86
Figure 3.26. Effect of VO1 width on temperature distribution for ROOM1_F(TC3~8). 87
Figure 3.27. Effect of VO1 width on temperature distribution for ROOM2_F(TC1~2). 88
Figure 3.28. Effect of VO1 width on temperature distribution for ROOM2_F(TC3~8). 89
Figure 3.29. Effect of VO1 width on hot gas layer thickness. 91
Figure 3.30. Effect of VO1 width on hot gas layer temperature rise. 92
Figure 3.31. Effect of VO2 width on velocity distribution for ROOM1_F and ROOM2_F. 94
Figure 3.32. Effect of VO2 width on discharge mass flow rate. 96
Figure 3.33. Effect of VO2 width on temperature distribution for ROOM1_F(TC1~2). 98
Figure 3.34. Effect of VO2 width on temperature distribution for ROOM1_F(TC3~8). 99
Figure 3.35. Effect of VO2 width on temperature distribution for ROOM2_F(TC1~2). 100
Figure 3.36. Effect of VO2 width on temperature distribution for ROOM2_F(TC3~8). 101
Figure 3.37. Effect of VO2 width on hot gas layer thickness. 103
Figure 3.38. Effect of VO2 width on hot gas layer temperature rise. 104
Figure 3.39. Comparison of hot gas layer temperature rise in adjacent room between present experimental and numerical... 108
Figure 3.40. Correlation of hot gas layer temperature rise between present experimental and numerical simulation data and proposed correlations. 112