[Gasification] Oxygen sensors for gasifier engines

[gasman]

Arnt, and All!

 

 

> ..a cheap shot at this would be use a cheap vacuum cleaner motor, 

it should survive 2, 3 or 4 months fine pushing clean air.

Now, moist gas...  ;o)

 

 

Dear Arnt, what is your starting point for this proposal?

In a smaller system supposed to be driven by the motor's suction, what is the function of PRESSING extra air into the mixing process? On the other hand, using internal resistance in the vacuum cleaner at low RPM? 

That would give some regulating ability, but it is very slow!

 

For fast dynamic regulation to compensate arriving pressure changes in the gas-line, I have "a few times" presented the use of a diaphragm, which samples the arriving pressure difference between the incoming gas- and air-lines. The diaphragm regulates the incoming air pressure according to the incoming gas pressure in the air-line ahead of the mixer, very fast.

 

This gives an ideal starting point for proportional air/gas mixing both by ganged twin butterflies in the gas- and airlines ahead of a vortex mixer, and electronically mastered "fine adjustment" in the proportionality.

 

> Now, moist gas...  ;o)

 

In addition, I have "a few times" described how to COMPLETELY avoid ANY MOIST GAS coming to the mixer!

 

Gasgenerator --> Cyclone --> Ample cooler --> Reheating (10-15 degrees Celsius) in a welded mantle around the cyclone, with a shunt tube with a butterfly to regulate the reheating --> Truck paper filter --> Insulated delivery line --> Mixer.

 

This has been used already successfully on cars, even in hard winter conditions!

 

When starting in cold, - 0 conditions, the reheating can be turned up to 

~100 degrees Celsius to have a reserve, thus fast overcoming all cold metal.

 

 

I hope that this little note will inspire.

 

Max