Fuel cell power plant self-controlling coolant cleaning process

Details Fuel cell power plant self-controlling coolant cleaning process Fuel cell power plant self-controlling coolant cleaning process

1981-01-19

1982-08-17

Cintins, Ivars C.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210664, 429 17, 429 20, C02F 120, C02F 128

Patent

active

043448496

ABSTRACT:
In an automated process for deaerating and purifying both the water which is recirculated in a coolant loop through a stack of fuel cells and the make-up water for the coolant loop, a portion of the water from the coolant loop is blown down into a deaerator water reservoir to which make-up water is added by condensing water from the fuel cell stack reactant gas streams into a deaeration column disposed above the reservoir. The blowdown provides some of the heat for deaeration; and the amount of blowdown is controlled as a function of the amount of make-up water added to the coolant loop by sensing the location of a steam/liquid interface within the deaeration column. Water is withdrawn from the reservoir, purified, and then introduced into the coolant loop at a rate sufficient to maintain the desired amount of water circulating in the coolant loop.

REFERENCES:
patent: 3982962 (1976-09-01), Bloomfield
patent: 4120787 (1978-10-01), Yargeau

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