Particulate Hot Gas Stream Cleanup Technical Issues. Task 1 Assessment of Ash Characteristics. Annual Report October 1997 – September 1998 and Quarterly Report, July 1998.

Particulate Hot Gas Stream Cleanup Technical Issues.
Task 1 Assessment of Ash Characteristics.
Annual Report October 1997 – September 1998 and Quarterly Report, July 1998.

Executive Summary	1
Introduction	2
Objectives	2
Power Systems Development Facility	3
Site Visits	4
November 5, 1997	4
January 20, 1998	6
May 18, 1998	14
Analyses of PSDF Ashes	18
Inertial Effects in the Westinghouse FL0301 Filter Vessel	22
Comparison of Specific Gas-Flow Resistance and K2	26
Karhula Pressurized Circulating Fluid Bed Facility	29
Analyses of Karhula Ashes	29
Pinon Pine Power Project	35
Analyses of Pinon Pine Filter Fines	35
Transport Reactor Development Unit	42
Analyses of TRDU Particulate Samples	42
Laboratory Techniques	58
Reproducibility of Measurements	58
Effect of Non-Uniform Dust Cake Porosity on Gas Flow	60
Effect of Screen Mesh Size on Uncompacted Bulk Porosity	63
Permeability as a Function of Gas Pressure	63
Development of a Technique for Preservation of Filter Cakes	66
Ash Data Bank Development	68
Future Work	73
References	74
Appendix A Samples Information Forms	A-1