Title:
【発明の名称】燃料電池電力設備用の直接不凍液溶液濃度制御装置
Document Type and Number:
Japanese Patent JP2003530668
Kind Code:
A
Abstract:
The invention is a direct antifreeze solution concentration control system for a fuel cell power plant that controls a concentration of a direct antifreeze within a direct antifreeze solution cooling fluid within the plant. The concentration control system includes at least one fuel cell; a thermal management system that controls a temperature within the fuel cell including a porous water transport plate secured in direct fluid communication with a cathode catalyst of the fuel cell, wherein the direct antifreeze solution passes through the water transport plate; a water recovery device in fluid communication with a process exhaust stream exiting the fuel cell for recovering water from the process exhaust stream; and, a process exhaust by-pass line in fluid communication between the fuel cell and a plant exhaust vent that selectively directs some or all of the process exhaust stream to by-pass the water recovery device and to pass out of the plant through the plant exhaust vent. Whenever water recovery by the water recovery device exceeds a specified maximum rate, the process exhaust by-pass line directs the process exhaust to by-pass the water recovery device and thereby restrict dilution of the direct antifreeze solution. The concentration control system may also include a boiler in fluid communication with the thermal management system that boils the direct antifreeze solution to produce steam for selectively directing steam out of the power plant through a steam exhaust vent.
Inventors:
Margiot, Paul, Earl.
Application Number:
JP2001574928A
Publication Date:
October 14, 2003
Filing Date:
March 23, 2001
Export Citation:
Assignee:
UTC Fuel Cells, LLC
International Classes:
H01M8/02; H01M8/04; H01M8/06; H01M8/10; (IPC1-7): H01M8/04; H01M8/02; H01M8/06
Domestic Patent References:
| JP2000164231A | 2000-06-16 | |||
| JPH06132038A | 1994-05-13 | |||
| JPH11329470A | 1999-11-30 | |||
| JPH07235324A | 1995-09-05 | |||
| JPH11162495A | 1999-06-18 | |||
| JPH08171919A | 1996-07-02 | |||
| JPH05135788A | 1993-06-01 | |||
| JPS60136178A | 1985-07-19 | |||
| JPH08185877A | 1996-07-16 |
Attorney, Agent or Firm:
Fujiya Shiga (2 outside)