Patent ID: 8381414
Filing Date: 2013-02-26
Classification: F26B

Abstract:
1. A method of operating a dryer, comprising: providing a drying chamber and a primary exhaust coupled to the drying chamber, the primary exhaust configured to exhaust gases from the drying chamber; providing an input chamber coupled to an input end of the drying chamber, the input chamber configured to controllably receive an out flow of gases from said drying chamber and ambient air, wherein the received outflow of gases and the ambient air form a mixed gas in the input chamber; sensing, with a temperature sensor, a first temperature of the mixed gas; controlling a rate of exhaust flow through the primary exhaust based at least on a difference between the sensed temperature of the mixed gas and an ambient air temperature; heating the mixed gas, downstream of the temperature sensor, to a second temperature greater than a pitch condensation temperature of volatile organic components in said mixed gas; and exhausting the heated mixed gas to the primary exhaust through a sampling conduit coupled to the input chamber, wherein heating the gases to the second temperature inhibits condensation of said volatile organic components within the sampling conduit.