Division 2.1.6.1 Air and fuel measurement method

The method involves measurement of the air flow and the fuel flow with suitable flowmeters. The instantaneous exhaust gas flow q_{m ew, i} [kg/s] shall be calculated by means of equation (7-15):

where:

q_{m aw, i}

instantaneous intake air mass flow rate [kg/s]

q_{m f, i}

instantaneous fuel mass flow rate [kg/s]