1. A EROSPACE E NGINEERING L ABORATORY (MAE308) P ROF. S EUNG W OOK B AEK D IV. OF A EROSPACE E NGINEERING, KAIST, IN KOREA R OOM : Building N7-2 #3304 T ELEPHONE : 3714 swbaek@kaist.ac.kr http://procom.kaist.ac.kr T A : Dong-il Lee R OOM : Building N7-2 #3315 T ELEPHONE : 3754 dilee@kaist.ac.kr P ROF. S EUNG W OOK B AEK D IV. OF A EROSPACE E NGINEERING, KAIST, IN KOREA R OOM : Building N7-2 #3304 T ELEPHONE : 3714 swbaek@kaist.ac.kr http://procom.kaist.ac.kr T A : Dong-il Lee R OOM : Building N7-2 #3315 T ELEPHONE : 3754 dilee@kaist.ac.kr

2. C ONTENTS 1. Research Background 2. Research Objectives 3. Research Methods 4. Results P ROPULSION AND C OMBUSTION L ABORATORY A EROSPACE E NGINEERING L ABORATORY MAE 308 Development of hybrid device for photovoltaic power generation and heating

3. Research Background A EROSPACE E NGINEERING L ABORATORY P ROPULSION AND C OMBUSTION L ABORATORY MAE 308 Renewable EnergyFossil Fuel

4. Research Background A EROSPACE E NGINEERING L ABORATORY P ROPULSION AND C OMBUSTION L ABORATORY MAE 308 Relative solar insolation World Solar Insolation Values

5. Research Background A EROSPACE E NGINEERING L ABORATORY P ROPULSION AND C OMBUSTION L ABORATORY MAE 308 Solar Cell Solar Heat

6. Research Background MAE 308 Concentrated Photovoltaic(CPV) Light concentration (x400~600) High power generating efficiency

7. 1.To increase the generating efficiency of CPV 2.To extract thermal energy from a CPV device Research Objectives P ROPULSION AND C OMBUSTION L ABORATORY A EROSPACE E NGINEERING L ABORATORY MAE 308 Schematic diagram of a heating system using CPV devices

8. P ROPULSION AND C OMBUSTION L ABORATORY A EROSPACE E NGINEERING L ABORATORY MAE 308 Insulated thermal absorber with a CPV device Research Methods

9. MAE 308 Brightness of light Resistance of R 1 V out BrightDecreaseIncrease DarkIncreaseDecrease A, B: Azimuthal angle detection sensor C, D: Elevation angle detection sensor Research Methods Solar tracking device

10. MAE 308 Results Transient motion of the heating device as a function of time

11. MAE 308 Results Comparison of the actual values obtained from KASSI with experimental data KASSI: Korea Astronomy and Space Science Institute KAIST: Korea Advanced Institute of Science and Technology

12. MAE 308 Results Electrical and thermal efficiencies of the CPV and thermal absorber as a function of solar time (1) : Total energy (2) : Maximum power (4) : Electrical efficiency (5) : Thermal efficiency (3) : Collected heat Concentration ratio ※ Energy density Cell area Lens transmissivity Cell absorptivity

13. P ROPULSION AND C OMBUSTION L ABORATORY A EROSPACE E NGINEERING L ABORATORY MAE 308 THE END. THANK YOU ! THE END. THANK YOU !