In addition the intercooler, which cools the fuel-air mixture
and raises air density, has been upgraded from the earlier one-stage type to a two-stage configuration.
Such a deployment for gas turbine process control is based on the GasPTi's unique ability to provide the operator with almost real time data on which to base changes to the turbines fuel-air mixture
, ignition temperature, and timing.
The technology compresses the fuel-air mixture
to a sufficiently high pressure and temperature that it ignites without spark plugs, similar to a diesel motor.
As for the colour of the flame -- which has received much coverage in the media -- it is expected, depending on the richness of the fuel-air mixture
, to be yellowish to golden, reflecting the excellent quality of the natural gas, which is likely to be pure methane.
To maintain flame stability at a point, the velocity of the fuel-air mixture
must be within the flame-propagation speed to prevent flashback (Lefebvre, 1998).
Because this is a spark ignited system, you discover that the way we've been igniting the fuel-air mixture
for so many years works fantastic--I don't want to take anything away from spark plugs--with today's strategies.
The ratio and atomization of the fuel-air mixture
influences directly the combustion efficiency, therefore the quantity of the products.
For one, the flame in the chamber can ignite the fuel-air mixture
in the premixer--an event known as flashback--sometimes causing an explosion.
Royal Laser noted that CHEC's HFI technology uses electricity to split water into hydrogen and oxygen, which are then injected into an engine's fuel-air mixture
to improve fuel combustion.
Octane controls the fuel-air mixture
in an engine to keep it from igniting before it's supposed to, which can cause reduced power and harmful knocking.
With a lean fuel-air mixture
, it removes as much as 95 to 100 percent of NOx emissions.
Using Valvetronic technology to give infinitely variable control of the fuel-air mixture
, it is more powerful, more flexible, more economical and less polluting than the outgoing 2.