TAPPI TIP 0416-01 provides a practical, standardized procedure for rating the thermal performance of recovery units fired with black liquor from sodium-based pulping operations. The document explains required laboratory and field data, measurement practices, operating conditions, simplifying assumptions, heat and mass balance calculations, and limitations of the method.
It includes calculation forms in both SI and English units, guidance for evaluating combustion air, flue gas, liquor solids, elemental analysis, smelt, steam and water-side enthalpies, radiation losses, and operating variables. Appendices address adjusted elemental analysis and heating value for miscellaneous chemical streams. The procedure is intended for operating efficiency monitoring, performance trend analysis, and approximate evaluation of small operating changes; it is not intended for guarantee performance testing.
Application Scope: Recovery boilers and recovery furnaces in sodium-based pulping operations, including technical assessments, operating performance monitoring, and thermal efficiency calculations by pulp and paper industry professionals.
