A geothermal pump is used to pumpbrine whose density is 1,150 kg/m3 ata rate of 0.32 m3/s from a depth of289 m. By considering the efficiencyof a pump device and taking the pumpefficiency as 78 percent, determinethe required power (kW) input to thepump to 1 decimal place. Disregardfrictional losses in the pipes, assumethat kinetic energy is negligible andthe geothermal water is exposed tothe atmosphere and thus its freesurface is at atmospheric pressure.Take gravity as 9.81 m/s2 and assumethe changes in kinetic energy arenegligible.

Fig: 1