diesel locomotive rosters

The EGR system routes a number of the exhaust gases (6 ? 10%) through the EGR valve, back in for the Intake System, and finally inside combustion chamber. The exhaust gases are inert i.e. they do not burn inside the combustion chamber; also, the exhaust gases occupy a few of the space which may otherwise be taken from the intake air. This cuts down on level of intake air readily available for the combustion process during each Power Stroke; which often decreases the peak combustion temperatures. This ends in lower NOx emissions. Of course people have been playing this beautiful instrument more than a hundred years now mainly because it was shown Hawaii inside the 1870's apparently from the Portuguese, but recently within the last few years there is a surge in the volume of people trying out this instrument understanding that can maybe be linked to the undeniable fact that some celebrities are considered playing it (Will Smith, W.H.Macy) I can carry on.