Development of a dry exhaust conditioner for diesel engines.
Brechtel-CE; Paas-N; Aggson-JR
Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, Contract H0267001, 1988 Nov; :1-154
This report describes the design, fabrication, and testing of a dry exhaust conditioner system. The work was undertaken to adapt European technology on dry exhaust conditioning systems developed for gassy coal mines to large, diesel-powered equipment used in oil shale mining. A large prototype system was developed for a 600-hp engine. The engine and conditioner system were then taken through a simulated certification process at the Mine Safety and Health Administration's approval and certification center in Triadelphia, West Virginia. After the laboratory testing, the engine and dry exhaust conditioner were retrofit into a caterpillar 773B haul truck for field tests of performance. No inherent features of the system were discovered that would make the dry exhaust conditioner incapable of meeting test requirements. Some deficiencies were found in the prototype design but could be rectified in commercial models. Particulate fouling was the primary problem in operation of the system and caused exhaust gas outlet temperatures to rise above the 400 deg. F limit after roughly 47 h of operation. Particulate fouling also required more frequent cleaning of the flame arresters, but the system was capable of operating two shifts without cleaning.
Exhaust-gases; Trucks; Safety-engineering; Mine-gases; Field-tests; Explosions; Mining-equipment; Diesel-engines; Exhaust-systems; Mine-haulage; Safety-devices; Mining-industry; Underground-mining
CP; Final Contract Report
NTIS Accession No.
OFR 32-90; Contract-H0267001
Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, Contract H0267001
J. F. T. Agapito and Associates, Inc.