...Sean P. Cooper; Damien Nativel; Olivier Mathieu; Mustapha Fikri; Eric L. Petersen; Christof Schulz Syngas is a desirable fuel for combustion in the Allam-Fetvedt cycle, which involves combustion under supercritical-CO 2 conditions. While some work has been conducted in collecting ignition delay...

... lesser reactions. Table 4 Summary of changes to H 2 O+O⇌OH+OH rates for each of the five mechanisms tested Summary of changes to H2O+O⇌OH+OH rates for each of the five mechanisms tested Mech. Rxn no. Original A New A Original rate References NUIG Syngas [ 18 ] R4 2.97 × 10 6...

... velocity flammability limit natural gas syngas The use of exhaust gas recirculation (EGR) in spark-ignited (SI) engines effectively reduces in-cylinder NO x emissions through a reduction of the combustion temperature [ 1 – 5 ]. Moreover, employing high levels of EGR (EGR percentage > 15...

... to operate with various fuel types, including natural gas and syngas produced via biomass gasification. Atmospheric experimental tests were performed and the results indicate larger flame lift-off heights and slightly higher CO gas emissions levels, while displaying lower NO x gas emissions levels for all...

... increase of the NO x emissions with the decreasing degree of premixing observed in the experiments, however, quantitative predictions would have required a postprocessing of the data from the LIF mixing study with a higher spatial resolution than available. NOx emission mixing LIF PIV syngas...

... components. In addition, the results are expected to provide useful information for the design and operation of stable syngas combustion systems. 22 04 2011 09 05 2011 30 12 2011 30 12 2011 References 1 Richards , G. , McMillian , M. , Gemmen , R. , Rogers , W...

... zone makes LP type of combustors a candidate for upstream flame propagation (i.e., flashback) in the premixer that is typically not designed to sustain high temperatures. Moreover, there has been a recent demand for fuel-flexible gas turbines that can operate on hydrogen-enriched fuels like Syngas...

...-ready CO 2 sequestration conditions. The results of the study indicate that hybrid SOFC systems could achieve electric efficiencies approaching 66% [lower heating value (LHV)] when operating fueled by coal-derived clean syngas and without carbon dioxide capture. The system concept integrates SOFCs...

...B. B. Sahoo; U. K. Saha; N. Sahoo Syngas, an environmentally friendly alternative gaseous fuel for internal combustion engine operation, mainly consists of carbon monoxide (CO) and hydrogen (H 2 ). It can substitute fossil diesel oil in a compression ignition diesel engine through dual fuel...

... flames gas turbines syngas hydrogen fuel momentum swirl stabilized burner flame stabilization Natural gas, with methane ( CH 4 ) as main component, is the most common fuel for lean premixed combustion in stationary gas turbines. The depletion of oil and natural gas...

... , “ Syngas Capable Combustion Systems Development for Advanced Gas Turbines ,” ASME Paper No. GT2006-90970. Lindfeldt , E. G. , and Westermark , M. O. , 2006 , “ An Integrated Gasification Zero Emission Plant Using Oxygen Produced in a Mixed Conducting Membrane Reactor ,” ASME Paper...

...Adrian S. Sabau; Ian G. Wright Gas turbines in integrated gasification combined cycle power plants burn a fuel gas (syngas (SG)) in which the proportions of hydrocarbons, H 2 , CO, water vapor, and minor impurity levels may differ significantly from those in natural gas (NG). Such differences can...

... of gas and surface temperature in determining deposition rates from ash-bearing fuels. Due to current economic and political pressures, alternate fuels such as coal, petcoke, and biomass are being considered to produce substitute syngas fuels to replace natural gas in power turbines. Given...

...N. Slavinskaya; M. Braun-Unkhoff; P. Frank Two reduced reaction mechanisms were established that predict reliably for pressures up to about 20 bar the heat release for different syngas mixtures including initial concentrations of methane. The mechanisms were validated on the base of laminar flame...

... combustion chamber to evaluate the lower heating value of the syngas. The system allows the evaluation of gas, tar, and char yields for different pyrolysis temperature and residence time. The feeding screw conveyor and the kiln are rigidly connected; therefore a modification of the flow rate implies...

... combustion chamber to evaluate the lower heating value of the syngas. The system allows the evaluation of gas, tar, and char yields for different pyrolysis temperatures and residence times. The feeding screw conveyor and the kiln are rigidly connected; therefore, a modification of the flow rate implies...

... capture the effects of fuel composition variability on blowoff limits. 15 08 2006 26 12 2006 fuel flames combustion gas mixtures laminar flow syngas lean blowout hydrogen This paper describes measurements of the dependence of lean blowout limits upon fuel composition...