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Refrigerant pressurization system with a two-phase condensing ejector

Patent ·
OSTI ID:1012619
A refrigerant pressurization system including an ejector having a first conduit for flowing a liquid refrigerant therethrough and a nozzle for accelerating a vapor refrigerant therethrough. The first conduit is positioned such that the liquid refrigerant is discharged from the first conduit into the nozzle. The ejector includes a mixing chamber for condensing the vapor refrigerant. The mixing chamber comprises at least a portion of the nozzle and transitions into a second conduit having a substantially constant cross sectional area. The condensation of the vapor refrigerant in the mixing chamber causes the refrigerant mixture in at least a portion of the mixing chamber to be at a pressure greater than that of the refrigerant entering the nozzle and greater than that entering the first conduit.
Research Organization:
Magnetic Development Inc.
Sponsoring Organization:
USDOE
DOE Contract Number:
FG36-04GO14327
Assignee:
Magnetic Development Inc.
Patent Number(s):
7,559,212
Application Number:
11/588,622
OSTI ID:
1012619
Country of Publication:
United States
Language:
English

References (7)

New Regenerative Cycle for Vapor Compression Refrigeration report January 2010
The non-equilibrium relaxation model for one-dimensional flashing liquid flow journal June 1996
Critical two-phase flow journal February 1980
Liquid-Vapor Interactions in a Constant-Area Condensing Ejector journal March 1972
One-Dimensional Flow of Liquids Containing Small Gas Bubbles journal January 1972
An analytical and experimental investigation of a condensing ejectorwith a condensable vapor conference February 2013
Investigation of the compressibility of extra-high-velocity aerated flow journal September 2000

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