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Learning Solar Engineering fundamentals and light measurement

Learning Solar Engineering fundamentals and light measurement. 方煒 台大生機系教授. Wei Fang, Ph.D., Professor Dept. of Bio-Industrial Mechatronics Engineering National Taiwan University. Receiving light. Various sensitivity curves. Human. Plant.

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Learning Solar Engineering fundamentals and light measurement

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  1. Learning Solar Engineering fundamentals and light measurement 方煒 台大生機系教授 Wei Fang, Ph.D., Professor Dept. of Bio-Industrial Mechatronics Engineering National Taiwan University

  2. Receiving light Various sensitivity curves Human Plant Spectral irradiation vs. sensitivity curve of Plants

  3. Receiving light Absorption peaks of chlorophylla a and b are at red 600~700 nm and blue 400~500 nm region

  4. Receiving light Sensitivity curves Insects chicken

  5. Light source Sensitivity curve of plants

  6. Light sensor

  7. Sensitivity curves of sensors

  8. Limitation of Quantumsensor Quantum Sensor can not be used to measure red or blue LEDs

  9. Other solar related sensors Portable device Suitable for 3 different units LI-190: Quantum LI-200: Pyranometer LI-210: Photometric meter

  10. About Sun track

  11. Solar declination

  12. Altitude vs. Azimuth angle

  13. Cylindrical Diagram 9:00am on the 1st of April Southern Lat. 32 deg.

  14. Total=direct + diffuse

  15. Sun track of a day

  16. Top view Northern Lat. 30 deg. 0 Latitute

  17. Northern hemisphere Latitude 51o Latitude 23.5o

  18. Full Diagram • Learn about: • Date line • Hour line • Azimuth angle • Altitude angle Azimuth angle Altitude angle Date line Hour line Southern Lat. 32 deg.

  19. Date Lines Southern Lat. 32 deg.

  20. Hour Lines Southern Lat. 32 deg.

  21. Azimuth Angle Southern Lat. 32 deg.

  22. Altitude Angles Southern Lat. 32 deg.

  23. Southern Lat. 32 deg. 3 D View

  24. Northern Latitude 51o n=299 6/21 3/21, 9/21 12/21

  25. Northern Latitude 51o n=235

  26. Equation of Time

  27. The Analemma

  28. Keatsley, G., 1996

  29. Sun rise/set hour

  30. About Radiation

  31. E.T. solar radiation on a horizontal plane

  32. Spectral irradiance of Sun

  33. PAR Fraction of ET irradiance

  34. Hourly ratio

  35. More about Solar Engineering Fundamentals Following contents, created by the author, are available from DSpace at UVM. • Tutorial for MATLAB based solar engineering fundamentals • MATLAB based software for the teaching of Solar Engineering Fundamentals

  36. The End

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