Mixed air removal device and power generator including the same

Abstract

A device for automatically detecting and removing air from a gas mixture of an organic gas and air includes calculating a saturation pressure value based on a temperature of the gas mixture in a reservoir, and obtaining a pressure threshold value by adding a margin value to the saturation pressure value. When the pressure value inside the reservoiris higher than the pressure threshold value, air is detected to be in the gas mixture. After this detection, a controllerpressurizes and introduces the gas mixture into a pressure containerto condense the organic gas in the gas mixture, thus producing a diluted gas mixture. Subsequently, the diluted gas mixture is introduced to a supply side of a membrane unit, the organic gas in the diluted gas mixture is recovered at a permeation side thereof, and a residual gas is discharged outside of the device.