The report gives results of extensive tests of a fabric filter baghouse operating on the effluent of a coal-fired utility boiler burning a mixture of petroleum coke and anthracite silt. The tests were conducted to determine the total mass and fractional efficiencies of the baghouse during normal and abnormal operation with brand new and used filter bags. Total mass samplers, inertial impactors, and a condensation nuclei counter were used to sample the baghouse influent and effluent. Results of the normal tests with the brand new and used bags determined the baghouse mean mass removal efficiencies to be 99.88 and 99.93%, respectively. Statistical analysis of the test results showed that the purposely altered variables had no significant effect on either the outlet concentration or penetration for normal and abnormal tests of the used bags. However, there were significant differences in the outlet concentrations and penetrations when the normal tests were compared for the new and used bags. There were also significant differences in the outlet concentrations when the new bag normal and abnormal tests were compared.

Prepared by GCS Corporation, GCA/Technology Division, Bedford, Mass., under contract no. 68-02-1438, ROAP no. 21ADM-032, program element no. 1AB012. Tables. Includes appendices. Includes bibliographical references (pages 71-72).