solar pond prasentation

1. Solar pond
Submitted to: Submitted by:
Dr. Brishti Mitra Mohd Tauqeer Alam
Head of department CSJMA14001390208
Chemical Engineering B.Tech, Final year
UIET CSJM UNIVERSITY KANPUR Chemical Engineering
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2. Content
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1) Introduction
2) What is solar pond
3) Zones and working of solar pond
4) Advantages and disadvantages of solar pond
5) Applications
6) Conclusion
7) References

3. Introduction
Renewable source of energy
 Solar energy
 Tidal energy
 Wind energy
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4. What is solar pond
 Collects and store solar energy
 It can store solar heat more efficiently than body of
water of same size because of salinity gradient
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Normal pond Solar pond

5. Historical Background
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•First observed in Transylvania,
Hungary in 1902
•Approx 72˚C observed at 1.3
meter down
•Beit ha arava is the largest solar
pond worked upto 1988 and
gave an electric output of 5MW
in Israel
Transylvania, Hungary

6. Zones of solar pond
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7. Upper convective zone
 The topmost upper layer, known as upper
convective zone (UCZ) has the least concentration
of salt to achieve a perfect solar pond
 Usually this layer is kept thin (0.3m to 0.5m)
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8. Non convective zone
 In this zone both salinity
and temperature increases
with depth
 The vertical salt gradient in
the NCZ inhibits
convection and thus gives
insulation effect
 Thickness 0.8 to 1.2m
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9. Lower convective zone
 High salinity water at the bottom does not mix
readily with the low salinity water above it
 Heat is stored in the LCZ
 Thickness 1 to 3m
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10. Two ways of using hot water
By direct use of hot water By using heat exchanger
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11. Major solar ponds in India
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Location Area (m²) Depth (m) Achievements
Bhavnagar 1210 1.2 Max.
temp.80˚C in
1972
Bhavnagar 1600 2.3 Designed to
supply 20KW
Rankine cycle
turbine
Bhuj 6000 3.0 Supplying
process heat to
a dairy

12. Advantages Disadvantages
 Cheap to build
 Attractive for rural
areas in developing
countries
 Accumulated salt
crystals can be further
use
 Eco friendly
 Efficiency problem
 Maintenance
 Land area
 Can operate only in
sunny days
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13. Application
 Electric power generation
 Supplying hot water to industry
 Desalination
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14. Conclusion
 It can be effectively used in industries that use fossils
to generate energy
 It can also be used for production for electricity
 Simple and cost effective as compared to other
methods
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15. References
• https://en.wikipedia.org/wiki/Renewable_ene
rgy
• https://www.britannica.com/technology/solar
-pond
• https://www.eolss.net/sample-
chapters/C08/E6-106-08.pdf
• www.aprekh.org./BhujSolarpond.pdf
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16. Thank you
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