Open AccessNumerical and experimental evaluation of flue gas recirculation for syngas combustion
Author(s) -
Giulio Allesina,
Marco Puglia,
Nicolò Morselli,
Simone Pedrazzi,
Massimiliano Parenti,
Filippo Ottani,
Paolo Tartarini
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1868/1/012020
Subject(s) - flue gas , combustion , syngas , nox , flue , flare , environmental science , waste management , process engineering , nuclear engineering , engineering , chemistry , aerospace engineering , hydrogen , organic chemistry
Biomass gasification can be an interesting solution for the energy production to fight global warming and the environment pollution. The flare apparatus is an essential component of gasification systems, but considering small scale ones, it is often quite simple and not very optimized. A way to minimize the NOx production during the combustion is recirculating the flue gas into the flames, making the combustion zone cold and inhibiting the nitrogen oxides formation. In this work different flare designs were numerically evaluated through OpenFOAM software to find the best flare shape that can guarantee the flue gas recirculation. Simulations results were verified building and testing a flare with an optimized geometry for a small-scale gasification system. Numerical simulation and experimental tests shown that it can be possible to design a simple flare for syngas combustion that guarantee low combustion temperature through flue gas recirculation.