...Hakan Caliskan; Arif Hepbasli This study presents exergy analysis of a natural gas-fired radiant tube-heating furnace. In the analysis, actual data over a test period of 3 h were used. Exergy efficiencies, destructions, losses, and entropy generation of the furnace were determined. For an average...

...Qing Jiang; Chao Zhang; Jin Jiang Preliminary study has shown that the flue gas recirculation (FGR) is one of the effective ways to reduce the nitric oxides ( N O x ) emission in industrial furnaces. The sensitivity of the N O x emission from a FGR industrial furnace to the change in three major...

... on the carbon content in fly ash, distribution of oxygen in the furnace, distribution of temperature in the furnace, distribution of bed pressure, and operation under low load. Some methods used to improve the CFB boiler operation are discussed in the paper. Contributed by the Fuels and Combustion...

...Q. Jiang; C. Zhang; J. Jiang The analysis of the combustion process and NOx emission in a gas-fired regenerative industrial furnace has been carried out numerically. The effect of the additive, methanol CH 3 OH , to the fuel on the NOx emission is studied. A moment closure method with the assumed β...

...Angela O. Nieckele; Mo^nica F. Naccache; Marcos S. P. Gomes For the present work, a numerical simulation of the 100% oxy-firing combustion process inside an industrial aluminum remelting reverb furnace is presented. Three different configurations were analyzed: (i) a staged combustion process...

... % of the total heat transfer in high temperature CFBs. It gradually increases along the height direction of the furnace. When the contribution of particle convection increases, the contribution of gas convection decreases, and vice versa. Particle size shows a significant effect on the radiative heat transfer...

...Yuh-Long Hwang; John R. Howell Reductions in furnace exit gas temperature (FEGT) by changing boiler operating variables and/or adding wall soot blowers and/or lowering burner elevations are investigated. Evaluation of these approaches requires experimental furnace testing and computational furnace...

...T. Ishii; C. Zhang,, Mem. ASME; S. Sugiyama A study of the effects of nitric oxide (NO) models on the prediction of NO formation in a gas-fired regenerative furnace with highly preheated air was undertaken. Three chemical kinetic processes for NO formation/depletion, i.e., thermal NO, prompt...