감사의 글
기호설명
국문요약
목차
제 1 장 서론 17
제 2 장 이론 해석 21
제 1 절 지배방정식 21
1. 고체 영역의 지배방정식 22
2. 심지 / 액 영역의 지배방정식 22
3. 증기 영역의 지배방정식 23
4. 심지 / 액 - 증기 경계면에서의 에너지보존 25
제 2 절 성능해석을 위한 수치해석 방법 25
1. 고체 , 심지 / 액 영역의 열저항 모델 26
2. 증기 영역의 차분화 28
3. 심지 / 액 영역의 유효 물성치 28
4. 증기의 물성치 29
5. TDMA 를 이용한 계산 방법 30
제 3 장 계산결과 및 검토 32
제 1 절 문제의 설정 32
제 2 절 결과 및 검토 34
제 4 장 결론 61
참고문헌 62
ABSTRACT 64
Fig. 1.1 Schematic diagram of heat pipe having single evaporator/condenser 18
Fig. 1.2 Example of multi-source heat pipe application 18
Fig. 2.1 Schematic diagram of heat pipe model with arbitrary multiple heat sources 21
Fig. 2.2 Schematic diagram of heat pipe analysis model 26
Fig. 3.1 Heat pipe model for analysis 32
Fig. 3.2 Heat source on/off conditions for analysis 33
Fig. 3.3 Temporal plots for axial variations of vapor, pipe wall and wick/liquid temperature 37
Fig. 3.4 Temporal plots for axial variations of vapor and pipe wall temperature between t=0 sec and t=100 sec 40
Fig. 3.5 Temporal plots for axial variations of vapor and pipe wall temperature between t=100 sec and t=200 sec 41
Fig. 3.6 Temporal plots for axial variations of vapor and pipe wall temperature between t=200 sec and t=300 sec 42
Fig. 3.7 Temporal plots for axial variations of vapor and pipe wall temperature between t=500 sec and t=600 sec 43
Fig. 3.8 Temporal plots for axial variations of vapor and pipe wall temperature between t=600 sec and t=700 sec 44
Fig. 3.9 Temporal plots for axial variations of vapor evaporation/condensation rate and axial mass flow rate 45
Fig. 3.10 Temporal plots for axial variations of vapor evaporation/condensation rate between t=0 sec and t=100 sec 48
Fig. 3.11 Temporal plots for axial variations of vapor evaporation/condensation rate between t=100 sec and t=200 sec 49
Fig. 3.12 Temporal plots for axial variations of vapor evaporation/condensation rate between t=200 sec and t=300 sec 50
Fig. 3.13 Temporal plots for axial variations of vapor evaporation/condensation rate between t=500 sec and t=600 sec 51
Fig. 3.14 Temporal plots for axial variations of vapor evaporation/condensation rate between t=600 sec and t=700 sec 52
Fig. 3.15 Temporal plots for axial mass flow rate between t=0 sec and t=100 sec 53
Fig. 3.16 Temporal plots for axial mass flow rate between t=100 sec and t=200 sec 54
Fig. 3.17 Temporal plots for axial mass flow rate between t=200 sec and t=300 sec 55
Fig. 3.18 Temporal plots for axial mass flow rate between t=500 sec and t=600 sec 56
Fig. 3.19 Temporal plots for axial mass flow rate between t=600 sec and t=700 sec 57
Fig. 3.20 Transient variation of vapor average temperature 58
Fig. 3.21 Transient variations of vapor average density 59
Fig. 3.22 Transient variations of vapor net evaporation rate 60
Table 2-1 Coefficient of temperature-property relations for water 29
Table 3-1 Summary of heat pipe for analysis 33
Table 3-2 Variations of pipe wall and vapor temperature 35