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Patent drawing for Indirect-direct evaporative cooling system operable from sustainable energy source
US 7,143,597 B2
HVAC US 7,143,597 B2 Expired

Indirect-direct evaporative cooling system operable from sustainable energy source

This is an evaporative cooling system designed to cool air using both indirect and direct evaporation stages. It's powered by a combination of solar panels and standard grid electricity, seamlessly merged by a unique diode interconnect unit. This combined power drives a fan motor to circulate air. The provided claims specifically describe this dual-source power system, rather than the cooling plates or water distribution methods.

Why it matters: Filed when solar power was significantly less efficient and cost-effective for residential applications. Advances in solar panel technology and the widespread adoption of efficient electronically commutated motors make this hybrid power system much more practical and appealing today.

Status
ExpiredProtection ended and was never renewed
How hard to build
ModerateDiode bridges, DC motor, power electronics.

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