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Solar Chimney Power Plant

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By:

  • Abdelrahman Salah Anas Mohamed
  • Eslam Ezz El Deen Aly
  • Mahmoud Gamal Abdallah
  • Mohamed Hassan Awwad

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Supervisors:

  • Prof. Hassan Ashraf El Gamal
  • Prof. El Sayed Saber

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Outline:

  • Introduction
  • Types of Solar Chimney
  • Design of Solar Chimney
  • System components
  • Experimental Procedure
  • Results and Discussion
  • Conclusion

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Definition:

  • The solar chimney is essentially an open-loop.
  • Natural circulation systems with a large solar collector at the bottom, which absorbs solar energy.
  • The tall chimney helps to increase the upward force.

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History:

  • In 1931, Gunther described the solar chimney power plant.
  • The concept of the solar chimney power plant was initially proposed by Professor J. Schlaich of Stuttgart in the late 1970s.

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History (Cont.):

In 1997, Schlaich carried out fundamental studies on the solar chimney power plant, and designed (SCPP) in Manzanares in Spain.

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History (Cont.):

  • In 2011, A solar chimney sample was constructed by Kasaeian et al. at the Zanjan University Campus in Iran.

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Process:

  • Solar chimney power plant (SCPP) combines three technologies (greenhouse technology, chimney technology and wind turbine technology) in a serial alteration of solar energy to electrical energy.

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Process (Cont.):

  • The SCPP energy conversion processes include the conversion of solar energy into thermal energy at the collector absorber.
  • Conversion of the thermal energy at the absorber to kinetic energy in the buoyant air.

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Process (Cont.):

  • Conversion of the kinetic energy in the air into mechanical work using the turbine and conversion of the mechanical work into electrical power through the rotation of a connected shaft from the turbine to the generator.

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�Process (Cont.):

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Principle:

  • A round ascending glass roof serves as a collector.
  • A chimney absorbs warmed up air and the air rises.
  • The suction of the air that occurs causes the wind turbines to rotate to generate electricity.

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Contents:

  • Introduction
  • Types of Solar Chimney
  • Design of Solar Chimney
  • System components
  • Experimental Procedure
  • Results and Discussion
  • Conclusion

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Types:

  • SCPP mode: Solar irradiation intercepted at the surface of the collector heats the air under the collector and increases its temperature and decreases its density.

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Types (Cont.):

  • Cooling tower (CT) mode: The CT operates during the night time as it does not need solar irradiation. The operation as a CT starts by spraying a mist of cool water on the hot and dry air located at the top of the chimney.

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Types (Cont.):

  • HSCPP System: The HSCPP system combines the working principles and technologies of both a traditional SCPP and a CT.

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Contents:

  • Introduction
  • Types of Solar Chimney
  • Design of Solar Chimney
  • System components
  • Experimental Procedure
  • Results and Discussion
  • Conclusion

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Solar chimney power plant in Zanajn

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Our Solar chimney dimensions

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Collector diameter

5m

Chimney height

1-3m

Chimney diameter

38cm

Chimney opening height

47.5cm

Collector opening height

40cm

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Advantages:

  • Energy Efficient: Thermal chimneys are a useful energy conservation feature.
  • Cost-Effective: Solar chimneys help cut down on utility bills in the home.
  • Low Maintenance: When it comes to energy utilization, solar towers are a clean feature. Since they don’t use any of the regular fuels, it is easier to keep them clean.
  • Environmentally Friendly: Thermal chimneys don’t utilize conventional energy for household heating or cooling, which makes them a suitable green alternative. Less reliance on oil, gas, electricity is vital in enabling sustainable resource management.

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Disadvantages:

  • High construction costs: Solar chimney power plants require substantial initial investment.
  • Land and space requirements: These power plants need a significant amount of land
  • Limited scalability: The power output of a solar chimney is directly related to its size.

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Contents:

  • Introduction
  • Types of Solar Chimney
  • Design of Solar Chimney
  • System components
  • Experimental Procedure
  • Results and Discussion
  • Conclusion

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SYSTEM COMPONENTS�

PVC material coated with black

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SYSTEM COMPONENTS (Cont.)�

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8 Wooden frames with

2 wooden legs for each frame

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SYSTEM COMPONENTS (Cont.)�

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Collector’s material:

0.8mm PVC sheets

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Wooden frames assembly

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SYSTEM COMPONENTS (Cont.)�

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SYSTEM COMPONENTS (Cont.)�

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4V DC Motor

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Turbine Fan 30cm diameter

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SYSTEM COMPONENTS (Cont.)�

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SYSTEM COMPONENTS (Cont.)�

Air turbine

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Turbine Housing

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SYSTEM COMPONENTS (Cont.)�

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Chimney Housing

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SYSTEM COMPONENTS (Cont.)�

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SYSTEM COMPONENTS (Cont.)�

Supporting System:

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Contents:

  • Introduction
  • Types of Solar Chimney
  • Design of Solar Chimney
  • System components
  • Experimental Procedure
  • Results and Discussion
  • Conclusion

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Experimental Procedure

The ambient temperature and wind speed were measured by GM8903 anemometer

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Experimental Procedure (Cont.)

LM35 Sensor

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Experimental Procedure (Cont.)

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DC Voltage and DC Current Sensors

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Sd card module

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Experimental Procedure (Cont.)

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Arduino mega

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Experimental Procedure (Cont.)

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Power Supply

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Experimental Procedure (Cont.)

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System connections:

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The box contains all components related to data readings

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Experimental Procedure (Cont.)

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Contents:

  • Introduction
  • Types of Solar Chimney
  • Design of Solar Chimney
  • System components
  • Experimental Procedure
  • Results and Discussion
  • Conclusion

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Results and Discussion:�

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Solar Chimney Output during operation on (1m) chimney

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Highest Temp Range ( 66 – 67 ) at T6 to T8

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Lowest Temp Range ( 53 – 54 )

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Results and Discussion (Cont.):�

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Solar Chimney Output during operation on (2m) chimney

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Highest Temp Range ( 67 – 68 )

at T6 to T10

Lowest Temp Range (53 – 54 )

At T1 to T5

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Results and Discussion (Cont.):�

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Solar Chimney Output during operation on (3m) chimney

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Highest Temp Range ( 67 – 69 )

At T6 to T12

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Lowest Temp Range ( 53 – 54 )

At T1 to T5

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Results and Discussion (Cont.):�

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Relation between distance and Temperature

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�Results and Discussion (Cont.):��

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Solar Chimney Air Velocity Output during operation

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Results and Discussion (Cont.):��

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Solar Chimney highest Power Output during operation on (3m) chimney

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Contents:

  • Introduction
  • Types of Solar Chimney
  • Design of Solar Chimney
  • System components
  • Experimental Procedure
  • Results and Discussion
  • Conclusion

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CONCLUSION

  • The findings of this project indicate that the solar chimney power plant successfully harnesses the sun's energy to generate power.
  • By analysing the collected data, it was observed that the power output of the turbine was directly proportional to the temperature difference between the collector and the chimney.

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CONCLUSION (Cont.)

  • The power output was directly proportional with the chimney height and collector diameter.
  • The data output always peaked from 12am to 2 pm.
  • Overall, to generate usable electricity, solar chimney should be constructed on large scale.

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Thank you

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