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More efficient firing of wet bark is possible

Journal Article · · Pap. Trade J.; (United States)
OSTI ID:5351017
Wood-fired boilers have been developed in Sweden which have high boiling efficiencies and which are capable of burning low-calorific, high-ash content, such as sludge from mill processes and waste water treatment, as well as reclaimed mixtures of bark, sludge, and other waste materials. Design features of the boilers include: sloping grates with drying zones for wet fuel; lower furnaces with drying and burn-out arches; supply of secondary and tertiary air with deep furnace penetration; a mechanically reciprocating foot grate; and upgrading of instrumentation and controls. The working principles of such boilers and results of their industrial testing are presented.
OSTI ID:
5351017
Journal Information:
Pap. Trade J.; (United States), Journal Name: Pap. Trade J.; (United States) Vol. 168:16; ISSN PTJOA
Country of Publication:
United States
Language:
English