High-Efficiency Heat-Driven Acoustic Cooling Engine With No Moving Parts
Abstract
This invention describes a new geometry for a heat driven
thermo acoustic prime mover (i.e. acoustic motor) and its
application to a thermo acoustic refrigerator and to an electricity
generator. The heat driven acoustic refrigerator has no
moving parts, and is thus extremely reliable, simple, and
cheap to manufacture. Unlike previous heat driven acoustic
cooling engines, it has good efficiency and compactness and
is easy to start, avoiding destructively high temperatures
upon start-up. The cooling engine is saleable over an
extremely wide range of cooling capacities from integrated
circuit and sensor cooling to building air-conditioning. The
electricity generating engine has modest efficiency, but may
be attractive in remote applications where high-reliability or
low cost or low environmental noise or solar powering is
important. The generator is likely to be most attractive in
capacities of a few kW to below 100 W where a tiny engine
would be impractical using other technologies.
Description
Patent
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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