United States of America As Represented by the Administrator of Nasa

Nirvana Energy Systems, Inc.

The United States of America As Represented by the Administrator

Geoffrey A Bruder

Rodger W Dyson

Rodger William Dyson, Jr

Lambertus Hesselink

Rajesh Batra

George Pontis

Neil William Troy

Mark A Pickens

A magnetostrictive alternator configured to convert pressure waves into electrical energy is provided. It should be appreciated that the magnetostrictive alternator may be combined in some embodiments with a Stirling engine to produce electrical power. The Stirling engine creates the oscillating pressure wave and the magnetostrictive alternator converts the pressure wave into electricity. In some embodiments, the magnetostrictive alternator may include aerogel material and magnetostrictive material. The aerogel material may be configured to convert a higher amplitude pressure wave into a lower amplitude pressure wave. The magnetostrictive material may be configured to generate an oscillating magnetic field when the magnetostrictive material is compressed by the lower amplitude pressure wave.

Magnetostrictive alternator

A Stirling engine feedback controller is provided that includes a Stirling engine having at least one piston, where the Stirling engine includes an Alpha-Stirling engine, and a Gamma-Stirling engine. The feedback controller includes a power sensor, a computer, and an electronic feedback loop. Here, the power sensor is configured to sense the power of the Stirling engine then output a power signal. In one aspect, the computer can be a central processing unit (CPU), or a field programmable gate array (FPGA), where the computer operates a control algorithm. Further, the electronic feedback loop receives the output power signal and an output signal from the computer, where an output signal from the electronic feedback loop is configured to a control a position of the piston(s).

Secure control system for multistage thermo acoustic micro-CHP generator

A thermo-acoustic engine and/or cooler is provided and includes an elongated tubular body, multiple regenerators disposed within the body, multiple heat exchangers disposed within the body, where at least one heat exchanger is disposed adjacent to each of the multiple regenerators, multiple transducers axially disposed at each end of the body, and an acoustic wave source generating acoustic waves. At least one of the acoustic waves is amplified by one of the regenerators and at least another acoustic wave is amplified by a second one of regenerators.

Alpha-stream convertor

A method of controlling facility power requirements using a thermoacoustic power device is provided that includes determining energy assets in a facility, controlling the energy assets using an appropriately programmed controller across a network having a security system protocol, monitoring outside temperatures and weather, measuring usage of the energy assets using a temperature sensor or an electrical usage sensor to a load-response signal of an on/off operation and usage of the energy assets to identify a specific energy asset by the controller to determine aggregate energy needs of the energy assets, and using a thermoacoustic power device controlled by the controller to generate electricity and heat according to the monitored temperature, weather and energy assets.

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Parma Heights, OH, United States of America

Geoffrey A Bruder