heat pump

Học thuật
Thân thiện
heat pump

A technician installs a heat pump outside a modern home.

Definition
  1. Noun:
    • A device that transfers thermal energy: A "heat pump" is a mechanical system that moves heat from one location to another, typically from a cooler space to a warmer space. It extracts heat from a source (like outdoor air, ground, or water) and releases it inside a building for heating purposes. The process can often be reversed to provide cooling.
Usage Examples
  • Noun:
    • We installed a new heat pump to efficiently warm our home in the winter.
    • The efficiency of a heat pump decreases when the outside temperature is very low.
    • Modern heat pumps can both heat and cool a space, functioning as a complete HVAC system.
Advanced Usage
  • "ground-source heat pump": A type of heat pump that exchanges heat with the ground, which maintains a more stable temperature than air.
    • A ground-source heat pump is more expensive to install but offers greater long-term efficiency.
  • "air-source heat pump": The most common type, which transfers heat between indoor air and outdoor air.
    • An air-source heat pump is a popular choice for moderate climates.
Variants and Related Words
  • Heat exchanger (n): A component within a heat pump or other systems where heat is transferred between two fluids.
  • Refrigerant (n): The fluid used in a heat pump cycle that absorbs and releases heat as it circulates.
  • HVAC (n, abbreviation): Heating, Ventilation, and Air Conditioning; the broader category of systems that includes heat pumps.
Synonyms
  • Thermal transfer system: A more technical term for a device that moves heat.
  • Reversible air conditioner: Describes the dual heating/cooling function of many air-source heat pumps.
Related Phrases
  • "Coefficient of Performance (COP)": A key metric for a heat pump's efficiency, representing the ratio of useful heating or cooling provided to the energy consumed.
    • When choosing a heat pump, check its COP rating for the climate where you live.
  • "heat pump cycle": The thermodynamic process of evaporation, compression, condensation, and expansion that allows a heat pump to transfer heat.
    • Understanding the basic heat pump cycle helps in troubleshooting the system.
heat pump

A technician installs a heat pump outside a modern home.

Noun
  1. apparatus that extracts heat from a liquid that is at a higher temperature than its surroundings; can be used to transfer heat from a reservoir outside in order to heat a building