Topic: Leap Error :Fuel "Biogas" has zero densitySubscribe | Previous | Next
Pushkar Pandit 7/2/2017
I just encountered an error while entering the result tab after inserting the default emission data from TED into the model.Also I m attaching a picture of the error message for reference. I hope the Leap Developer Community will look into this matter and respond as quickly as possible.
Taylor Binnington 7/6/2017
2 Likes Hi Pushkar,
Some of the emission factors which are entered into LEAP's Technology and Environment Database (TED) are specified as "mass of pollutant per mass of fuel consumed" (i.e., kg/kg). This means that for these pollutants, LEAP must internally convert from a quantity of energy specified for the branch into a mass of fuel consumed, in order to calculate emissions. This requires a msss density.
The "Biogas" fuel in LEAP's default fuel's database does not contain this information, so it cannot be converted. To fix this, I would suggest that you enter an appropriate energy density (GJ/m^3) and mass density (kg/liter) pair into LEAP's fuels database, so that this conversion can take place. Be sure that the two values are properties of the fuel at the same temperature and pressure!
Hope this helps,
Taylor
