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Show Good atomization is also important for stable CWS ignition. Smaller droplets provide a higher surface/volume ratio, improving heat and mass transfer rates in the burner ignition zone. Recommended Laboratory CWS Test Procedures Twenty-one test procedures have been developed for the characterization of CWS fuels. These procedures are meant to lay the groundwork for establishing standard CWS test procedures. Tests have been developed in five major areas: • General Properties - particle size distribution, density, pH, etc. • Fuel Properties - proximate, ultimate, heating value, etc. • Rheological Properties • Stability • Ash Deposition The detailed test procedures are presented in Volume 1 of the final report being published by EPRI. Guideline CWS Specifications Guideline CWS specifications were developed based on the results of this program. These specifications are generic and are not boiler or site specific. The recommended properties are: Solids Content. A stable CWS with the highest solids content compatible with an acceptable viscosity is desirable. -18- |