A 4 cylinder 4 stroke diesel engine has the bore size of 94mm, stroke of 112 mm. Calculate the engine displacement. If this engine is equipped with a turbocharger which has the maximum boost ratio of 2.3 bar MAP absolute pressure (considered as adiabatic compression from 1 bar, 200C, without intercooler, K=1.4 for air), and the volumetric efficiency is mv = 85%, calculate the air mass flow rate (in kg/s) of this engine at 2000 rpm at this condit