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Geothermal exchange heat pump - A geothermal exchange heat pump, also known as a ground source heat pump, is a heat pump that uses the Earth as either a heat source or a heatsink depending on the mode of operation: heating or cooling. Geothermal heat pumps are either open or closed systems and typically consist of a loop ...
Heat sink - A heat sink is an environment or object capable of absorbing heat from another object with which it is in thermal contact (either direct contact or radiational "contact"). In common use, it is a device made of metal brought into contact with the hot surface of a component (in most cases, some kind ...
Phase change heat pump - A phase change heat pump employs a liquid with a low boiling point to transfer heat from cooler space to a warmer space; generally in a refrigeration application. It is the most common heat pump used in domestic refrigerators, and heat pumps are also used in air conditioning systems to transfer heat from the outside of a ...
Heat syncope - Heat syncope another stage in the same process as heat stroke, occurs under similar conditions as heat stroke and is not distinguished from the latter by some authorities. The basic symptom of heat syncope is a body temperature above 40°C (104°F) with fainting, or weakness but without mental confusion, ...
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