What Does a Pump Do Thermodynamics

The role of a pump is to provide sufficient pressure to move fluid trough the system at the required flow rate. This energy compensates for the energy losses due to friction, elevation, velocity and pressure differences between the inlet and outlet of the system.

What does a pump do in a thermodynamic cycle?

Thermodynamic heat pump cycles are the models for household heat pumps and refrigerators. There is no difference between the two except the purpose of the refrigerator is to cool a very small space while the household heat pump is intended to warm a house. Both work by moving heat from a cold space to a warm space.

Do pumps change enthalpy?

No. Temperature of fluid will not increase due to pumping. Because pump will not squeeze the liquid. Pump imparts some energy to liquid so it can be lifted to higher level.