The low amount nitrogen comes from the “first stage retort” it produces a “rich gas” no extra air injected.
2: the higher amount of hydrogen = equal to the enormous quantity of water in the gas + the higher amount of Co2
reduce the watercontent and then see the numbers going towards 35% CO and 20% Hydrogen and low CO2 (<3%)
Hydrogen per volume is less energetic then CO per volume, it needs the same quantity (+/-) air to combust
Yes the ignition timing is shorter but also need more attention to the cooling from the engine…
In the case of the Weiss gasifier, the numbers make it look as quenching the glowing charcoal
the shown temperature zones in their prospect are actual glowing if the numbers are correct.
Advice for copying the viking system ( my guess is this the real case scenario ) ; preheat the fuel up to 400ºC , extract the condensate before it enters the second stage… ( rotating valve ) , keep the heat in the fuel, drizzle the pre-heated fuel into a WK style gasifier unit underneath and enjoy…
My feeling is that Roger is going to build something that we all can learn from and benefit.