Patent ID: 8262280
Filing Date: 2012-09-11
Classification: B01F,G05D,Y10T

Abstract:
1. A system for providing a percentage mixture of a first fluid with a second fluid comprising: a source of the second fluid at an unregulated temperature; a first tube permeable to the second fluid at a first permeation rate, the first tube having a first tube first end, and a first tube second end, and a first tube middle portion that is disposed in the source of the second fluid; a differential pressure regulator to set a fluid pressure drop from the first tube first end to the first tube second end; a source of the first fluid to flow the first fluid through the differential pressure regulator into the first tube; a thermometer to provide a measurement of the unregulated temperature of the source of the second fluid; and a first calibration curve to correlate (a) a first volumetric concentration of the first fluid flowing through the first tube and mixing with the second fluid permeating the first tube versus (b) the unregulated temperature of the source of the second fluid.