WhittonTechnology

1. WhittonTechnology Air Curtain Destructors

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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%

10. 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

11. 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

12. 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

13. 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

14. 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

15. 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

16. 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

17. 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

18. 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

19. 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

20. 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

21. 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

22. 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

23. WhittonTechnology Air Curtain Destructors