Overview
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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).
Read this article from a comprehensive knowledge base, updated and supplemented with articles reviewed by scientific committees.
Read the articleAUTHORS
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Markus HAIDER: Professor at the Technical University of Vienna (Austria) - Director, Institute of Energetics and Thermodynamics
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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
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
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KEYWORDS
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Industrial thermal engineering
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Boilers. Combustion systems, water/steam and air/flue gas circuits
Combustion systems
Bibliography
Software tools
KED PPSD (boiler calculation) http:// www.ked.de
NOWA (water-steam circulation) http://www.iet.tuwien.ac.at
ASPEN PLUS® (thermal cycles, reactions) http:// www.aspentech.com
...Standards and norms
- Chaudières à tubes d'eau et installations auxiliaires - NF EN 12952 -
- Water-tube boilers and auxiliary systems – Part 15: Acceptance tests - NF EN 12952-15 - 01-04
- Performance Test Codes Fired Steam Generators - ASME PTC 4-2008 - 2008
- Code for Acceptance Tests on stationary steam generators of the power station type - BS 2885 - 1974
Regulations
Pressure Equipment Directive (European Parliament Directive 97/23/EC), transposed into French law by Decree No. 99-1046, on the approximation of the laws of the Member States concerning pressure equipment.
Decree of January 31, 2011 amending the decree of March 15, 2000 on the operation of pressure equipment
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Alfa Laval Aalborg A/S http://www.aalborgindustries.com
Alstom Power http://www.alstom.com
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