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Fluid processing device and method

Patent ·
OSTI ID:908602
 [1];  [2]
  1. West Richland, WA
  2. Richland, WA
+ Show Author Affiliations
A fluid processing unit having first and second interleaved flow paths in a cross flow configuration is disclosed. The first flow paths are substantially longer than the second flow paths such that the pressure drop in the second flow paths can be maintained at a relatively low level and temperature variations across the second flow paths are reduced. One or more of the flow paths can be microchannels. When used as a vaporizer and/or superheater, the longer first flow paths include an upstream liquid flow portion and a downstream vapor flow portion of enlarged cross sectional area. A substantial pressure drop is maintained through the upstream liquid flow portion for which one or more tortuous flow channels can be utilized. The unit is a thin panel, having a width substantially less its length or height, and is manufactured together with other thin units in a bonded stack of thin metal sheets. The individual units are then separated from the stack after bonding.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
AC06-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
6,994,829
Application Number:
10/164,969
OSTI ID:
908602
Country of Publication:
United States
Language:
English

References (3)

Integration of microfluidics/electrochemical system for trace metal analysis by stripping voltammetry conference August 1999
Design and fabrication of a cross flow micro heat exchanger journal December 2000
Laser micromachined and laminated microchannel components for chemical sensors and heat transfer applications conference September 1997

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