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WhittonTechnology. Air Curtain Destructors. WhittonTechnology. Air Curtain Destructors. Waste wood feedstock is placed in the combustion chamber The waste wood includes pallets, untreated dimensional lumber, and cedar furniture cuts of various sizes from a rustic furniture manufacturer
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WhittonTechnology Air Curtain Destructors
WhittonTechnology Air Curtain Destructors • Waste wood feedstock is placed in the combustion chamber • The waste wood includes pallets, untreated dimensional lumber, and cedar furniture cuts of various sizes from a rustic furniture manufacturer • View is from the rear of the unit looking towards the forward equipment deck into the refractory lined combustion chamber
WhittonTechnology Air Curtain Destructors • View of Whitton TechnologyS-127 Air Curtain Destructor (ACD)during initial start-up • The blower or manifold is not operating • Combustion of waste wood feedstock is occurring without the aid of the air curtain or accelerant
WhittonTechnology Air Curtain Destructors • The manifold has been engaged • The air curtain is distributing air into the combustion chamber • The air curtain is controlling the flame characteristics • The blower fan is operating at approximately 900 RPM
WhittonTechnology Air Curtain Destructors • The air curtain is controlling the fire while adding excess oxygen • Notice the top of the fire ball “curling” due to the action of the patented Whitton Technology air curtain design • No visible emissions
WhittonTechnology Air Curtain Destructors • Waste wood feedstock is being loaded into the combustion chamber on the opposite side of the manifold • The John Deere diesel engine and 100 gallon fuel tank are visible in the center right of the image beneath safety grate
WhittonTechnology Air Curtain Destructors • Operating S-127 ACD • Very minor opacity against either the light blue (sky) background or the darker green background of the tree line • The ACD is operating at a constant 1,700 RPM • The patented air distribution system (fan and manifold) are visible in the center of the image atop of the ACD
WhittonTechnology Air Curtain Destructors • This is the initial startup of the S-127 ACD during the October 10, 2000 emissions testing • The initial “startup” or calibrationrun (Run 1) was conducted for 30 minutes • The air curtain in not yet engaged in this image • The air curtain was engaged after five minutes of operation • Sampling was performed at a point in the center of the ACD
WhittonTechnology Air Curtain Destructors • Operating S-127 ACD being charged (loaded) at Station 2 (middle of unit) with approximately 90 cubic yards of waste wood and herbaceous material prior to conducting Test Run 2 • Internal combustion chamber temperatures exceed 1,600 degrees F • Opacity is less than 2.0%
WhittonTechnology Air Curtain Destructors • Operating S-127 ACD after being charged with waste wood and herbaceous material (tree limbs)prior to conducting Test Run 2 • This view is from the front of the S-127 over the “deck” area looking towards the rear doors directly into the refractory lined combustion chamber • Manifold is visible on left side of image
WhittonTechnology Air Curtain Destructors • Operating S-127 ACD with sampling stack equipment partially visible in the upperleft side of image next to air curtain manifold • This image was obtained just prior to conducting Test Run 2 • Note the flame curl and verylow opacity indicating the effectiveness of the air curtain distribution system
WhittonTechnology Air Curtain Destructors • A mobile stack structure was used to collect gases and particulates • The stack structure was located at twelve separate points inside the ACD using USEPA Method 1 • The ACD was treated as a rectangular stack outlet • The top area of the ACD was divided into 12 sampling points and these points were used for the velocity measurements
WhittonTechnology Air Curtain Destructors • USEPA Method 2 was used to determine velocity pressure and temperature of the stack gasexiting the ACD • A calibrated S-type pitot tube with an inclined manometer and temperature meter were used to obtain this data • The stack gas was sampled and analyzed for oxygen,carbon dioxide, carbon monoxide and nitrogen content
WhittonTechnology Air Curtain Destructors • These percentages were usedto determine the dry molecular weight of the stack gasesconsistent with USEPAMethod 3A • An ECOM S+ collected datafor carbon dioxide and oxygen while a Thermo 48C (NDIR) provided data for carbon monoxide
WhittonTechnology Air Curtain Destructors • During emission testing stack gas samples were continuously collected • USEPA Method 4 was used to determine the moisture in the stack gases obtained using the Method 5 sampling train apparatus • The condensed moisture was measured and the gas volume was used to calculate the percent moisture
WhittonTechnology Air Curtain Destructors • The total particulate concentrations were measured by the application of USEPAMethod 5 • The Method 5 procedure withdrew PM emissions fromthe ACD isokinetically onto a pre-weighed filter • The samples obtained werethan prepared for analysis in accordance with Method 5
WhittonTechnology Air Curtain Destructors • A portion of Method 5D was used to compensate for the unconfined nature of the ACD does not utilize a stack like most combustion systems • The mobile stack sampling unit was constructed consistent with Figure5D-1 of this USEPA Method. • It was equipped with flow straighten vanes and a single sample port withthe nozzle of the Method 5 sampling train located at the center of the mobile sampling stack
WhittonTechnology Air Curtain Destructors • USEPA Method 9 wasused to evaluate theopacity of the S-127 ACDduring testing The Method9 testing was performedby a Certified Observer of Visible Emissions • The Certified Observer islocated in the left center ofthis image obtainingreadings during emissionstesting
WhittonTechnology Air Curtain Destructors • USEPA Method 10 involves the extraction of an integrated gas sample conditioned by a (NDIR) nondispersive infraredanalyzer for CO • A Thermo 48C High LevelGas Filter Correlation (GFC)CO Analyzer was used seton the 0 to1000 ppm range
WhittonTechnology Air Curtain Destructors • As part of the emissionstesting an integrated gas sampling device was used • The ECOM S+ is a portablefive gas micro-processingdevice that utilizes electrochemical sensors andgas conditioning systems • The ECOM system analyzedfor the combustion gases of SO2, NO, NOx, CO and 02
WhittonTechnology Air Curtain Destructors • Air quality tests for the S-127 ACD were consistently better than generic AP-42 estimates • The ACD processing or feed rate during testing was 90 CY per hour during testing and: • Particulate averaged under 3.0 lbs/hr • Opacity averaged 5.4% during normal operating conditions • Carbon Monoxide averaged 19.98 lbs/hr
WhittonTechnology Air Curtain Destructors • The Whitton Technology S-Series ACD units have established preliminary performance standards in part based on the patented air curtain distribution system • The testing of the S-Series ACD provides actual data under normal operating conditions which illustrates that the S-127 exceeds the new standards for air curtain destructors developed and published by the USEPA
WhittonTechnology Air Curtain Destructors