Compressor map

TL;DR: In this paper, a semi-physical modeling method is adopted to analyze the operating property of a centrifugal compressor, which is more suitable for automotive fuel cells because of its compactness, and a dynamic feedforward controller is proposed based on the load torque to control the air mass flow, eliminating the disturbance produced by the compressor load in transient.

TL;DR: In this article, the effects of evaporative cooling on gas turbine performance were studied and the results of this analysis for saturated inlet fogging as well as 1% and 2% overspray are reported and the prediction equations for the amount of actual increased net power output of various gas turbine nominal power output are proposed.

TL;DR: In this article, a 3D CFD model was proposed to compute power friction losses due to journal bearings in low-speed turbocharged engines, and compared with some sets of experiments carried out in the CNAM laboratory using a special turbocharger test rig equipped with a torque meter.

TL;DR: In this article, the operation of a large containership main engine was investigated with emphasis at slow steaming conditions, and the extension of the compressor map at low rotational speed region was carried out based on a non-dimensional parameters method incorporating a novel way of calculating the compressor isentropic efficiency.