wsherrick wrote:Here is another one that was written just two years ago and it compares steam operation and diesel operation at todays costs. This has some good information in it as well.
What got my interest was the concept used in the fire box design. Instead of burning for high CO2 in the combustion chamber they deliberately limited primary air for increased CO and then burned that gas to CO2 with the major part of the air as secondary air.
I wonder just how much of the efficiency of your Glenwood is owing to the secondary air supply doing a better job of burning CO at low burn rates. What would really help is exhaust gas analysis of the many configurations of fire box design.
I have always favored high CO2 but it just might be that the better way is increased efficiency in burning CO above the fire bed instead of in the fire bed.