introdution to Solar air heating systems

SOLAR AIR HEATING SYSTEMS

-M.A.ARAVINDH12307019

CGET

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!

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.

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

Classification based on collector• Porous Type– Matrix– Honeycomb– Jet plate

• Non Porous Type– Overflow – Underflow– Double flow

Wire Mesh

Honey Comb

APPLICATIONS

• SPACE HEATING.• CROP DRYING.• PROCESS HEATING.• REFRIGERATION etc.

THANK YOU..

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