1. Jordan International Energy Conference 2011 – Amman
IN THE NAME OF GOD
Jordan International Energy Conference 2011 – Amman
Simulation of flow and heat transfer in 3D solar chimney power plants-numerical analysis
By:Maryam Zare
Vali Kalantar

2. Contents Introduction Experimental Manzanares power plant Methodology
Prototype and dimensions of modeled power plant
Comparison with pervious work
Equations
Grid and boundary conditions
Results Power Plant with Different Dimensions
Power Plant in Several Months of a Year
Conclusion and Future Interests

3. Introduction Energy supply of earth Solar chimney power plant Chimney
Water tube
Collector
Turbine

4. Manzanares power plant

5. different part of power plant
Methodology
3-D solar chimney power plant- five degree model
Dimensions of modeled power plant
dimensions (m)
different part of power plant
195
chimney height 5
chimney radius
120
collector radius
1.7
collector height 10
height of turbine location
depth of ground

6. Methodology Comparison between present works and pastor’s
Source term (W⁄m2) in the ground instead of solar radiation

7. Methodology Reynolds average Navier Stoks equation
Bousinesq approximation
model k-ε realize

8. semi-transparent wall
Methodology
numerical CFD program
tetrahedral grids
hanging node adaption along with boundary daption, volume adaption and y+ adaption
geographical data of Yazd
boundary conditions
surface
type
value
power plant inlet
pressure inlet
∆p=0 (pa) & T=300 (k)
power plant outlet
pressure outlet
chimney wall
opaque wall
q=0 (w/m2)
bend
collector
semi-transparent wall
solar load model
ground surface
coupled
5 meter under the ground
T=300 (k)
Two side walls
symmetry
turbine
Pressure jump
Beetz power limit

9. Results Power Plant with Different Dimensions
High chimney: chimney height=400(m)
Big collector: collector radius=240(m)
Short chimney: chimney height=100(m)
Small collector: collector radius=60(m)

10. Results Power Plant with Different Dimensions
P=η ΔPtt V

11. Results Power Plant in Several Months of a Year
five different months (first, forth, sixth, eighth and eleventh month)
unsteady simulation during a year

12. Results Power Plant in Several Months of a Year

13. simulation of Manzanares plant Manzanares solar chimney power plant
Conclusion
case
simulation of Manzanares plant
Manzanares solar chimney power plant
Power output(kw)
43.57
43.69
insolation on collector equal to 996 (w/m2)
Future Interests
time-dependent calculations
improve physical models for the turbine
larger dimensions or full 360 degree model
other parameters

14. THANKS A LOT FOR YOUR ATTENTION

15. Results Power Plant with Different Dimensions

16. Results Power Plant in Several Months of a Year

17. Results Power Plant in Several Months of a Year

18. Velocity vectors at iterance, middle and end of the collector
Velocity vectors at middle and end of the chimney

19. Measured data from manzanares prototype