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. Various sensitivity curves Spectral irradiation vs. sensitivity curve of Plants PlantHuman Receiving light

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

4. Insects Sensitivity curves chicken Receiving light

5. Sensitivity curve of plants Light source

6. Light sensor PhotometerIllumination, in Lux Quantum SensorPhotosynthesis, in μmol/m 2 /s Pyranometer Solar energy, in W /m 2

7. Sensitivity curves of sensors

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

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

11. About Sun track

13. Solar declination

14. Altitude vs. Azimuth angle

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

16. Total=direct + diffuse

17. Sun track of a day

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

19. Northern hemisphere Latitude 51 o Latitude 23.5 o

20. Full Diagram Southern Lat. 32 deg. Learn about: 1.Date line 2.Hour line 3.Azimuth angle 4.Altitude angle Hour line Date line Altitude angle Azimuth angle

21. Date Lines Southern Lat. 32 deg.

22. Hour Lines Southern Lat. 32 deg.

23. Azimuth Angle Southern Lat. 32 deg.

24. Altitude Angles Southern Lat. 32 deg.

25. 3 D View

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

27. Northern Latitude 51 o n=235

28. Equation of Time

29. The Analemma

30. Keatsley, G., 1996

32. Sun rise/set hour

33. About Radiation

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

35. Spectral irradiance of Sun

36. PAR Fraction of ET irradiance

37. Hourly ratio

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

39. The End