Download or read book Computational Modeling and Experimental Studies on NOx Reduction Under Pulverized Coal Combustion Conditions. Technical Progress Report, Fifth Quarter, 1 January 1996--31 March 1996 written by and published by . This book was released on 1996 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: During this quarter, the focus was on getting the experimental facility ready for operation. Upon receiving all the pieces of equipment, the research team first spent a great deal of time in calibration of various instruments and then began assembling the pieces for the experimental work. The use of Swage-lock fittings helped in arresting the gas leaks fairly easily. The entire assembly consisted of teflon tube connections (a) from gas cylinders to the flow meters, manifold and buffer vessel, (b) from buffer vessel to the inlet of the reactor enclosed in the middle, by a furnace, (c) from the exhaust end of the reactor to the NOx analyzer via gas dryer and (d) from the analyzer to the vent. Details of the experimental setup are given in the subsequent section. Once the setup was checked for leaks and the leaks were arrested, the facility was operational. Several experiments on NO reburning with methane were undertaken. The flow rates for various gases were calculated for five reburning stoichiometric ratios and the experiments were conducted for three different reaction temperatures. The results are presented later on in this report. These results indicate favorable reduction of NO by reburning with methane, consistent with their computer projections, and hence, present a good base for investigating further on nitric oxide reburning with other fuels as well. Experiments on nitric oxide reburning with (1) a combination of methane and acetylene, and (2) a combination of methane and ammonia, will be considered in the next quarter. The computer simulation results submitted in the Second Quarterly Report indicate further reduction of NO with the addition of acetylene/ammonia to methane as reburn fuel. These results will be verified experimentally in the ensuing quarter.