- An undesirable feedback condition caused by two or more circuits sharing
a common electrical line, usually a grounded conductor.
- In a geothermal heat pump
system, a series of fluid-filled plastic pipes buried in the shallow
ground, or placed in a body of water, near a building. The fluid within
the pipes is used to transfer heat between the building and the shallow
ground (or water) in order to heat and cool the building.
ENERGY AND POWER