ABSTRACT
This article provides an overview of the component systems of a boiler with the design criteria of exchangers (pressure parts and others) and air/smoke circuits. It mainly details combustion systems and their specificities as well as the types of water/steam circulation (natural, pump-assited, forced, etc.). It also presents the case of exchangers in pressure parts and provides advice regarding the choice of materials. It ends on the analysis of air/smoke circuits (nature of the circuits, air-heaters, ventilators, etc).
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AUTHORS
-
Markus HAIDER
: Professor at the Technical University of Vienna (Austria) - Director, Institute of Energetics and Thermodynamics
-
Philippe SEGUIN
: Director, Combustion Systems Department - CNIM – Environment Division
INTRODUCTION
The energy and material balances of the boilers were the subject of an initial dossier
[BE 8 730]
.
The combustion system and the water/steam circulation system are the most specific components of a boiler. Together with design criteria for pressure exchangers and air/flue gas circuits, this dossier [BE 8 731] provides an overview of the systems that make up a boiler.
The following
[BE 8 732]
dossier is devoted to specific applications such as power boilers, waste boilers, biomass boilers and recovery boilers.
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Boilers. Combustion systems, water/steam and air/flue gas circuits