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Heat Pump COP Calculator (COPₕ=Qh/W)

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Compute the heat pump coefficient of performance COPₕ = Qh/W: given heating capacity and work input, output the COPₕ and heat absorbed from the cold side.

Key points

Heat Pump COP Calculator (COPₕ=Qh/W): Compute the heat pump coefficient of performance COPₕ = Qh/W: given heating capacity and work input, output the COPₕ and heat absorbed from the cold side. Formula: COPₕ = Qh / W = 1 + Qc/W. Enter parameters on the DD-CAT IDE online tool page to get results instantly, with a calculation-model diagram that updates with the inputs. Heat pump COPₕ = Qh/W = 1 + COP(refrigeration), always greater than 1, so heat pumps are more efficient than pure resistance heating. Air-source heat pump COPₕ ≈ 2–4 (drops as ambient temperature falls); ground-source heat pumps stay above 4.

Inputs

COPₕ = Qh / W = 1 + Qc/W

Calculation model (updates with parameters)

Heat pumpQh = 3 kWQcW = 1 kWHigh temperature (indoor heating)COPₕ = 3
Heating COPₕ3
Heat absorbed Qc2 kWW
Heating capacity (watts)3 kWW
Input power (watts)1 kWW

Engineering notes

  • Heat pump COPₕ = Qh/W = 1 + COP(refrigeration), always greater than 1, so heat pumps are more efficient than pure resistance heating.
  • Air-source heat pump COPₕ ≈ 2–4 (drops as ambient temperature falls); ground-source heat pumps stay above 4.
  • Heating capacity Qh = work input W + heat absorbed from the cold source Qc.

FAQ

What is Heat Pump COP Calculator (COPₕ=Qh/W) for?
Compute the heat pump coefficient of performance COPₕ = Qh/W: given heating capacity and work input, output the COPₕ and heat absorbed from the cold side.
What is the formula for Heat Pump COP Calculator (COPₕ=Qh/W)?
Core formula: COPₕ = Qh / W = 1 + Qc/W. The tool returns results instantly using this formula and the selected parameters.
What engineering notes should I keep in mind when using Heat Pump COP Calculator (COPₕ=Qh/W)?
Heat pump COPₕ = Qh/W = 1 + COP(refrigeration), always greater than 1, so heat pumps are more efficient than pure resistance heating. Air-source heat pump COPₕ ≈ 2–4 (drops as ambient temperature falls); ground-source heat pumps stay above 4. Heating capacity Qh = work input W + heat absorbed from the cold source Qc.