Advanced air/flue gas staging based on CFD modelling for enhanced combustion and burnout in a waste-wood fired boiler

Publikation: Forskning - peer reviewKonferenceartikel i proceeding

  • Boštjan Rajh
  • Chungen Yin
  • Niko Samec
  • Matjaž Hriberšek
  • Filip Kokalj
  • Matej Zadravec

Abstract

The paper presents the impacts of the jet momentum, position and orientation of air and Recycled Flue Gas (RFG) streams on the performance of a grate-fired boiler burning waste wood via a comprehensive CFD-based parametric study. It is found that the air and RFG jets can be optimized to enhance mixing and improve combustion in the boiler. For instance, the optimized air and RFG jets can extend the residence time of the gas and entrained fine particles in the hot zones effectively, make the temperature and velocity profiles more uniform, and enhance heat transfer. The findings of this study can serve as useful guidelines for innovative design and optimization of the secondary air and RFG for this type of grate boilers.
Luk

Detaljer

The paper presents the impacts of the jet momentum, position and orientation of air and Recycled Flue Gas (RFG) streams on the performance of a grate-fired boiler burning waste wood via a comprehensive CFD-based parametric study. It is found that the air and RFG jets can be optimized to enhance mixing and improve combustion in the boiler. For instance, the optimized air and RFG jets can extend the residence time of the gas and entrained fine particles in the hot zones effectively, make the temperature and velocity profiles more uniform, and enhance heat transfer. The findings of this study can serve as useful guidelines for innovative design and optimization of the secondary air and RFG for this type of grate boilers.
OriginalsprogEngelsk
TitelProceedings of 12th Conference on Sustainable Development of Energy, Water and Environment Systems
Antal sider14
ForlagSDEWES Centre
Publikationsdatookt. 2017
StatusUdgivet - okt. 2017
PublikationsartForskning
Peer reviewJa
Begivenhed12th Conference on Sustainable Development of Energy, Water and Environment Systems - Dubrovnik, Kroatien
Varighed: 4 okt. 20178 okt. 2017
http://www.dubrovnik2017.sdewes.org/

Konference

Konference12th Conference on Sustainable Development of Energy, Water and Environment Systems
LandKroatien
ByDubrovnik
Periode04/10/201708/10/2017
Internetadresse

Kort

ID: 261083130