lecture $8($chapter $12)(3)-$ Korumal Gor$$n$$m $*$ bu bilgisayar konumuna kaydedildi

ronlar

Slayt G$$sterisi

Kaydet

G$$zden Ge$$ir

G$$r$$n$$m

Yardim

Examples

The pump of a water distribution system is powered by a $15-kW$ electric motor whose efficiency is $90$ percent $($Fig$.12-31).$ The water flow rate through the pump is $50\frac{L}{s}.$ The diameters of the inlet and outlet pipes are the same, and the elevation difference across the pump is negligible. If the absolute pressures at the inlet and outlet of the pump are measured to be $100$kPa and $300$kPa, respectively, determine $($a$)$ the mechanical efficiency of the pump and $($b$)$ the temperature rise of water as it flows through the pump due to mechanical inefficiencies.