Содержание
- 2. Solar Thermal 1 Low Potential Heat Greenhouses Trombe walls solar cookers solar water heating systems CPC
- 3. Solar thermal energy With all objects on Earth, solar heating reaches a state of temperature homeostasis
- 4. Greenhouse
- 5. Greenhouse
- 6. Greenhouse – controllable temperature
- 7. Solar thermal energy White objects stay dramatically cooler than other objects because the most important variables
- 8. Albedo = whiteness The albedo of an object is a measure of how strongly it reflects
- 9. Various Albedo remember that relative value is important
- 10. Solar thermal energy Silvery objects get hot even though they are excellent reflectors because they are
- 11. Made from metalized polyester film, this ultra-insulating material is coated on both sides with a heat-reflective
- 13. Solar thermal energy Solar water heaters have solar collectors that are installed outside dwellings, typically on
- 14. Passive Solar - Solar Cookers A solar cooker is a way of using the sun's power
- 15. Passive Solar: Solar Cookers
- 17. Passive Solar - Solar Cookers
- 18. Lusine Machyan, IESM 2009 – in Altoetting, Germany, learning solar cooker production technology.
- 19. Gegham Sargsyan, IESM 2009 – in Altoetting, Germany, learning solar cooker production technology.
- 20. Passive Solar - Trombe walls A Trombe wall is a sun-facing wall built from material that
- 21. Trombe Walls During the day, sunlight would shine through the insulated glazing and warm the surface
- 22. Trombe Walls Modern Trombe walls have vents added to the top and bottom of the air
- 24. Solar Architecture
- 25. Solar Architecture
- 26. Solar Architecture Look at south (in northern hemisphere) Use the sun ecliptics Use Trombe walls Use
- 27. Solar water heating panels A bucket of water can use solar energy too. Need to prevent
- 28. Tel Aviv Picture by Eric Arevshatyan, IESM’07
- 29. Tel Aviv
- 30. Tel Aviv
- 31. Solar Water Heating Panel: flat-plate absorber, - intercepts and absorbs the solar energy, transparent cover(s) -
- 33. Solar thermal energy With all objects on Earth, solar heating reaches a state of temperature homeostasis
- 34. Solar Water Heating Panel Low Iron Tempered Glass Absorber Selective coating Rear insulation Rear Screen (metal)
- 35. Selective Coatings One of these tricks is "selective coating". In selective coating a thin layer of
- 36. Efficiency: vacuum pipe vs. flat panel
- 37. Efficiency Conversion Factor: η0 = 0.717 Loss Coefficient: a1 = 1.52 W/(m2K) Loss Coefficient: a2 =
- 38. Main factors that influence SHW panel efficiency Temperature difference between the inlet and outlet liquid, ΔT,
- 39. Greenhouse
- 40. Vacuum almost totally prevent convection losses.
- 41. Evacuated pipe collector in CPC (curved parabolic) design
- 42. Vacuum collector
- 43. Solar Water Heating Systems Passive – based on fluid convection Active – based on forced circulation
- 44. Solar Water Heating Systems Single Contour – no freezing environment, no need in antifreeze Double or
- 46. SHW Systems
- 47. SHW Systems
- 48. SHW Systems
- 49. SHW Systems
- 51. Solar cooling Photovoltaic + conventional air conditionaire. Desiccant cooling.
- 52. AUA SOLAR SYSTEM
- 53. Desiccant Cooling We have constant flow of inlet air, exhaust is dumped to the atmosphere. Solar
- 54. Desiccant Cooling
- 55. Desiccant Cooling
- 56. Desiccant Cooling
- 57. Energy factor and Solar Fraction The solar energy factor is defined as the energy delivered by
- 58. Heat pumps A final development in water heating, which is not strictly solar but is sometimes
- 59. Windcatchers - Iran
- 60. Homework Find from internet the total worldwide amount of solar water heating capacity installed. Copy paste
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