a erospace e ngineering l aboratory (mae308) p rof. s eung w ook b aek d iv. of a erospace e...
TRANSCRIPT
AEROSPACE ENGINEERING LABORATORY (MAE308)
PROF. SEUNG WOOK BAEK DIV. OF AEROSPACE ENGINEERING, KAIST, IN KOREA
ROOM: Building N7-2 #3304 TELEPHONE : 3714 [email protected] http://procom.kaist.ac.kr
TA : Dong-il Lee ROOM: Building N7-2 #3315 TELEPHONE : 3754 [email protected]
PROF. SEUNG WOOK BAEK DIV. OF AEROSPACE ENGINEERING, KAIST, IN KOREA
ROOM: Building N7-2 #3304 TELEPHONE : 3714 [email protected] http://procom.kaist.ac.kr
TA : Dong-il Lee ROOM: Building N7-2 #3315 TELEPHONE : 3754 [email protected]
CONTENTS
1. Research Background
2. Research Objectives
3. Research Methods
4. Results
PROPULSION AND COMBUSTION LABORATORY AEROSPACE ENGINEERING LABORATORY
MAE 308
Development of hybrid device for photovoltaic powergeneration and heating
Research Background
AEROSPACE ENGINEERING LABORATORYPROPULSION AND COMBUSTION LABORATORY
MAE 308
Renewable EnergyFossil Fuel
Research Background
AEROSPACE ENGINEERING LABORATORYPROPULSION AND COMBUSTION LABORATORY
MAE 308
Relative solar insolationRelative solar insolation
World Solar Insolation ValuesWorld Solar Insolation Values
Research Background
AEROSPACE ENGINEERING LABORATORYPROPULSION AND COMBUSTION LABORATORY
MAE 308
Solar Cell Solar Heat
Research Background
MAE 308
Concentrated Photovoltaic(CPV)Concentrated Photovoltaic(CPV)
Light concentration (x400~600) High power generating efficiency
1. To increase the generating efficiency of CPV
2. To extract thermal energy from a CPV device
Research Objectives
PROPULSION AND COMBUSTION LABORATORY AEROSPACE ENGINEERING LABORATORY
MAE 308
Schematic diagram of a heating system using CPV devices
PROPULSION AND COMBUSTION LABORATORY AEROSPACE ENGINEERING LABORATORY
MAE 308
Insulated thermal absorber with a CPV deviceInsulated thermal absorber with a CPV device
Research Methods
MAE 308
2
2 1out in
RV V
R R
Brightness of lightResistance of
R1
Vout
Bright Decrease Increase
Dark Increase Decrease
•A, B: Azimuthal angle detection sensor
•C, D: Elevation angle detection sensortand
H 0.003
0.176tan1 0.017o
dH m
Research Methods
Solar tracking deviceSolar tracking device
MAE 308
Results
Transient motion of the heating device as a function of time
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
MAE 308
Results
Electrical and thermal efficiencies of the CPV and thermal absorber as a function of solar time
2 ( )p out inQ mC T T
P V I
(1) : Total energy
(2) : Maximum power
1
100(%)elec
Pn
Q
(4) : Electrical efficiency
2
1
100(%)th
Qn
Q
(5) : Thermal efficiency
"1 0Q = irrA CR q
(3) : Collected heat
:CR Concentration ratio※" :irrq Energy
density:oA Cell area
: Lens transmissivity
: Cell absorptivity
PROPULSION AND COMBUSTION LABORATORY AEROSPACE ENGINEERING LABORATORY
MAE 308
THE END.
THANK YOU !
THE END.
THANK YOU !