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Show Presented at 2012 AFRC Annual Meeting, September 5-‐7, Salt Lake City, UT © 2012 ClearSign Combustion Corp. all rights reserved 6 (a) (b) (c) ECC Technology ECC Technology On, Heat ECC Technology On, Heat Off Transfer Surface Ungrounded Transfer Surface Grounded Figure 7. Directed Heat Transfer via ECC technology. The figure comprises a series of Schlieren images (elevation view through a circular window) of a propane diffusion flame. A normal vertically rising plume from a flame is shown in (a). With ECC technology engaged but in an ungrounded (i.e., floating) enclosure, the plume responds in a chaotic fashion (b). When a grounded heat transfer surface is introduced simulating a boiler or process heater tube (c), it draws the thermal plume to itself, increasing the heat transfer. 5. Diffused heating. Other testing (Figure 8) illustrates the ability to diffuse heat along a conducting surface. Such effects can help eliminate hot spots, fouling, and coke deposition on heat transfer surfaces such as boiler and process tubes. (a) ECC Technology Disabled (b) ECC Technology Enabled Figure 8. Enhanced Thermal Efficiency with ECC Technology. Photographs from an infrared camera show an elevation view of a hot spot near the exit of the cylindrical volume from the plume of an internal propane flame. Within two minutes of system activation (b) the temperature is more uniformly distributed along the cylindrical enclosure. |
