Linked from

The 38 pages that link to Heat pump, each with the reason it gives.

• Carnot cycleRelated: The reversed cycle gives the ideal upper bound on heat-pump performance.

• Thermal energy storageRelated: Pairing heat pumps with thermal stores shifts heating or cooling to favorable times.

• District heatingRelated: Large heat pumps can raise the temperature of waste, ambient, or geothermal heat for distribution.

• RefrigerantRelated: Reversing refrigerant flow lets the same system provide heating or cooling.

• Air conditioningRelated: In cooling mode, it operates as an air conditioner; in heating mode, it reverses the cycle.

• Vapor-compression refrigerationRelated: The same cycle can be operated to deliver heat rather than cooling.

• HydrofluorocarbonRelated: Many heat pumps use HFCs to move heat efficiently.

• ElectrificationRelated: Heat pumps deliver more heat than the electrical energy they consume.

• Geothermal gradientRelated: Ground-source systems exploit relatively stable shallow subsurface temperatures rather than deep gradients.

• Electrical wiringRelated: Heat pumps can impose significant electrical loads that shape wiring and circuit design.

• Refrigeration cycleRelated: The same cycle can heat a building by delivering heat indoors.

• Waste heat recoveryRelated: It upgrades recovered low-grade heat to a temperature useful for industrial processes.

• Electricity demandRelated: Weather-driven operation can create large seasonal changes in electricity demand.

• Water heatingRelated: Heat-pump water heaters draw heat from surrounding air, ground, or water rather than generating it directly.

• 1,1,1,2-TetrafluoroethaneRelated: R-134a can serve as the working fluid in heat-pump systems.

• Carnot heat engineRelated: Its ideal coefficient of performance follows from reversing a Carnot engine.

• Energy engineeringRelated: Heat pumps deliver useful heating by upgrading ambient or waste heat.

• Energy industryRelated: Electrified heating shifts building energy demand toward the power industry.

• Home applianceRelated: Refrigerators and air conditioners use heat-pump cycles to move heat.

• Major applianceRelated: Refrigerators and some clothes dryers use heat-pump cycles to move heat efficiently.