The engine performance (i.e., the fuel consumption rate, maximum combustion pressure, and exhaust gas temperature) and the exhaust emissions (NOx, particulate matter (PM)) were analyzed before and after the fuel additive insertion.
At the same ratios of nitrogen to gas mixture, Markstein length, unstretched laminar flame propagation velocity and unstretched laminar combustion velocity decrease and the maximum combustion pressure increase with the increase of initial pressure of the gas mixture.
The results show that the unstretched laminar flame propagation velocity, the unstretched laminar combustion velocity, Markstein length, flame stability, and the maximum combustion pressure decrease distinctly with the increase of nitrogen fraction in the gas mixture.
The proposed PRRB CB) is very effective in establishing a heat-recirculation mechanism from the hot exhaust gas to the combustion air, resulting in efficient combustion air preheating with maximum combustion air temperature of 300 °C.
This combustion gas was cooled further (by steam injected into it) to 400° C, the maximum temperature that Elling's radial-inflow turbine could handle.
It combines recycled combustion gas from the furnace with a rich supply of oxygen to feed the furnace during combustion or ember-combustion process.
NO x emissions are not universal for any type of engine, depending on combustion process time and maximum combustion temperatures.
The corresponding figures were 3%, 12% and 2% for records with a combustion gas poisoning diagnosis.
The results showed good agreement between laboratories and against calculated stoichiometric maxima, demonstrating satisfactory levels of repeatability and reproducibility for key combustion gases.
Common drawbacks of internal combustion technologies are that the combustible oil shale gas is diluted by combustion gases and particles smaller than 10 mm can not be processed.
