Electrochemical gas analysers can be used to measure CO, CO2, O2, SO2, NO2,and NO when using a biofuel called Waste Cooking Oil Methyl Ester (WCOME).

 

What other methods can be used to measure the gases emitted by engines using this fuel or any fuel for that matter?

Titration? Not as easy to measure in real time, but perhaps useful in experiments and for calibration purposes.

 

http://en.wikipedia.org/wiki/Titration

I wonder if something can be cobbled together using the sensors from the emission control systems from a modern car engine...?

Hi there:

 

In addition to measurements of combustion products, one can always do some numerical calculations predicting the composition of combustion products.

 

Thanks,

 

Gordan

I'd think its a lot better than "clean coal". We'll probably be employing that soon enough.

Hi

 

"What other methods can be used to measure the gases emitted by engines using this fuel or any fuel for that matter?"

 

For real time measurements, a mass spectrometer would be able to supply you with exact date of all the possible emission products (it measures the numbers of protons).

 

But it probably only appliciable in a stationary set-up.

 

/Johannes

I wonder if something can be cobbled together using the sensors from the emission control systems from a modern car engine...?

No. The exhaust sensors output voltage as a function of the partial pressure of the oxygen in the exhaust gas. They can't detect anything else.