SOLAR THERMAL SYSTEMS

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Across
  1. 2. ----- Use solar energy to evaporate water and collect its condensate within the same closed system
  2. 4. Use solar energy to dry substances
  3. 9. ------ solar still that solely relies on sun to distill water
  4. 11. ---- solar still that uses additional heat sources apart from sun
  5. 15. direct solar dryers ------------- the substance by directly exposing to sunlight
  6. 16. ----------is used to concentrate sunlight in solar cookers.
Down
  1. 1. Solar panel cookers are not effective under _______ conditions
  2. 3. Uses direct sunlight to produce heat and cook food
  3. 5. solar cookers use highly insulated glass tube for the cooking chamber.
  4. 6. ------ solar dryer work By heating the incoming air with the help of a black surface
  5. 7. is the process of treating water to eliminated pathogens and extend self life
  6. 8. The cooking pan used in solar cookers convert ……….energy.
  7. 10. manufacture parabolic dish concentrator
  8. 12. -------cover increases the efficiency of solar dryers.
  9. 13. Indirect solar dryers …….. the food.
  10. 14. Linear --------- reflector is a line focus collector.