6.3.2 Engine parameters to be measured and recorded
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6.3.2 Engine parameters to be measured and recorded

  6.3.2.1 Table 6 lists the engine parameters that shall be measured and recorded during onboard verification procedures.

Table 6 Engine parameters to be measured and recorded

Symbol Term Unit
Ha Absolute humidity (mass of engine intake air water content related to mass of dry air) g/kg
nd,i Engine speed (at the i th mode during the cycle) min–1
nturb,i Turbocharger speed (if applicable) (at the i th mode during the cycle) min–1
Pb Total barometric pressure (in ISO 3046-1:1995:
px=Px= site ambient total pressure) 		kPa
Pc,i Charge air pressure after the charge air cooler (at the i thmode during the cycle) kPa
Pi Brake power (at the ithmode during the cycle) kW
qmf,i Fuel oil (in case of dual fuel engine, it would be fuel oil and gas) (at the i th mode during the cycle) kg/h
si Fuel rack position (of each cylinder, if applicable) (at the i th mode during the cycle)  
Ta Intake air temperature at air inlet (in ISO 3046-1:1995: T x = TTx = site ambient thermodynamic air temperature) K
TSC,i Charge air temperature after the charge air cooler (if applicable) (at the i th mode during the cycle) K
Tcaclin Charge air cooler, coolant inlet temperature °C
Tcaclout Charge air cooler, coolant outlet temperature °C
TExh,i Exhaust gas temperature at the sampling point (at the i th mode during the cycle) °C
TFuel_L Fuel oil temperature before the engine °C
TSea Seawater temperature °C
TFuel_G footnote Gas fuel temperature before the engine °C
Parent topic: 6.3 Simplified Measurement method
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