HY-C Company, LLC
Date: November 10, 2016
Project No. G102527563
Page 9 of 15
III. PROCESS DESCRIPTION
III.A TEST SET-UP DESCRIPTON
A standard 6” diameter vertical single wall pipe and insulated chimney system was installed to 15’ above floor level. The singe wall pipe extended to 8 feet above the floor and insulated chimney extended the remaining height. III.B AIR SUPPLY SYSTEM Combustion air enters a combustion blower located on the back of the heater, which is directed to the firebox. All gases exit through the 6” flue also located at the top back of the heater. The exhaust gases are assisted by a combustion blower. III.C TEST FUEL PROPERTIES
Wood used for the testing is split and seasoned oak cordwood. Oak has a default heating value of 8550 Btu/hr (19887 kJ/kg) and a moisture content between 18% and 28% on a dry basis.
IV.
SAMPLING SYSTEMS
IV.A. SAMPLING LOCATIONS
Particulate samples are collected from the dilution tunnel at a point 20 feet from the tunnel entrance. The tunnel has two elbows and two mixing baffles in the system ahead of the sampling section. (See Figure 3.) The sampling section is a continuous 13 foot section of 6 inch diameter pipe straight over its entire length. Tunnel velocity pressure is determined by a standard Pitot tube located 60 inches from the beginning of the sampling section. The dry bulb thermocouple is located six inches downstream from the Pitot tube. Tunnel samplers are located 60 inches downstream of the Pitot tube and 36 inches upstream from the end of this section. (See Figure 1.) Stack gas samples are collected from the steel chimney section 8 feet ± 6 inches above the scale platform. (See Figure 2.)
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