Sentences with phrase «pump frictional losses»

Not exact matches

The major part of these energy losses is caused by turbulence, a phenomenon that leads to a drastic increase of frictional drag and hence much more energy is required to pump the fluid.

The coolant pump and the A / C compressor are now electrically driven, reducing frictional losses, also helping economy.

The range of measures here is quite great; for example, engine efficiency can be improved by three different kinds of measures, increasing thermodynamic efficiency, reducing frictional losses and reducing pumping losses (these losses are the energy needed to pump air and fuel into the cylinders and push out the exhaust) and each kind of measure can be addressed by a great number of design, material and technology changes.