Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
From the Engineering Reference, section "Pump Heat Addition to the Loop":
Due to the fact that a pump is a mechanical device that acts on the fluid it is circulating, it causes the fluid to increase in temperature. The EnergyPlus model assumes that all pressure increase caused by the pump will eventually be lost due to friction, and that friction will be added as heat to the fluid.
