Skip Navigation
SBIR/STTR

Active Gas Regenerative Liquefier, Phase I

Completed Technology Project

Project Introduction

Active Gas Regenerative Liquefier, Phase I
We offer a novel liquefier that has the potential to simultaneously increase thermodynamic efficiency and significantly reduce complexity. The ?active gas regenerative liquefier? (AGRL) uses an array of discrete micro compressor-expander units in a periodic heat exchanger to accomplish extremely efficient liquefaction of hydrogen and other cryogenic fluids. When an array of these units are combined into a highly effective regenerator with excellent heat transfer, low pressure drop, and low longitudinal conduction, the potential for a extremely efficient regenerative refrigerator and/or liquefier is created. The capability to directly couple the compression of a working gas within a unit with the simultaneous expansion of a working gas within the same unit allows distributed work input and recovery from near ambient temperature to cryogenic temperatures as low as ~20 K. By using this micro compressor-expander unit, the net work input is reduced substantially to that required for a very efficient refrigeration cycle, no matter what the temperature span of the liquefier. More »

Primary U.S. Work Locations and Key Partners

Project Library

Share this Project

Organizational Responsibility

Project Management

Project Duration

Light bulb

Suggest an Edit

Recommend changes and additions to this project record.

This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.

^