Download - introdution to Solar air heating systems
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SOLAR AIR HEATING SYSTEMS
-M.A.ARAVINDH12307019
CGET
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Solar Energy - An abundant resource!
• 120,000,000,000,000,000 KWh of solar energy are intercepted by the Earth every hour!
• This amounts to the annual world energy demand every 20 minutes!
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SOLAR THERMAL DEVICES
• The simplest and most direct application of solar energy is the direct conversion of sunlight into low-temperature heat (up to a temperature of 212 degrees F).
• two classes of technologies - PASSIVE and ACTIVE solar energy conversion.
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PASSIVE
• Passive solar design refers to the use of the sun’s energy for the heating, cooling and day-lighting of living spaces.
• Passive systems are simple, have few moving parts, no mechanical systems, and require minimal maintenance.
ACTIVE
• active solar energy technologies require the transport of heat through a medium and thus need components to transform and transfer the solar energy.
• Energy from active solar sources has two major applications – HEAT and ELECTRICITY
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Classification based on collector• Porous Type– Matrix– Honeycomb– Jet plate
• Non Porous Type– Overflow – Underflow– Double flow
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Wire Mesh
Honey Comb
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APPLICATIONS
• SPACE HEATING.• CROP DRYING.• PROCESS HEATING.• REFRIGERATION etc.
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THANK YOU..
QUERIES?....