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tru -- CARB verifies Level 3 diesel particulate filters for reefer engines Posted: 25 Aug 2011 09:41:14
The California Air Resources Board has verified the HUSS MK 35 and MK 50 DPFs (formerly designated as the FS MK 40S and the FS MK 50S) as a Level 3 Plus diesel emission control strategy for use with 1998 and newer diesel transport refrigeration unit (TRU or reefer) engines. Hussí MK 35 and MK 50 DPFs are capable of reducing emissions of diesel particulate matter (PM) by 85 percent or more. Level 3 PM control meets the Ultra-Low-Emission TRU In-Use Performance Standard that is required for model year 2004 and newer TRUs with 25 horsepower and greater engines by December 31, 2011. These DPFs were previously conditionally verified, pending completion of field durability tests. These durability tests have been completed, as well as more extensive field demonstration testing on a variety of TRU applications. The Huss MK 35 and MK 50 DPFs are now fully verified for use on bobtail and trailer TRU applications. The HUSS MK 35 and MK 50 DPFs consist of an active exhaust filter system and an automatic filter regeneration system. The system has three modules with silicon carbide filter material that uses a diesel burner for regeneration. Specific conditions for which the MK 35 (for 0 to 25 hp TRU engines) and MK 50 (for 26 to 50 hp TRU engines) DPFs have been approved may be found (within a few days) on the ARB Verification Procedure website for Level 3 diesel emissions control strategies at http://www.arb.ca.gov/diesel/verdev/level3/level3.htm. The list of compatible TRU engines (by model year, manufacturer, engine family, and displacement) is also listed in the Attachment listed at the above link. TRUs are refrigeration systems powered by diesel internal combustion engines designed to control the environment of temperature-sensitive products that are transported in trucks, trailers, shipping containers, and railcars. These units operate at distribution centers, grocery stores and other facilities which are often in close proximity to residential neighborhoods. The emissions from TRUs pose a potential threat to both public health and the environment. In 2004, the TRU Airborne Toxic Control Measure (ATCM) was adopted to reduce diesel particulate matter (PM) emissions from TRU engines. The TRU ATCM was amended in November 2010 and those amendments became effective March 7, 2011. Information about the current TRU ATCM is available at the TRU Website at: http://www.arb.ca.gov/diesel/tru/tru.htm If you have any questions, please contact the TRU Help Line at 1-888-878-2826 or call 916-323-0561.