1. What is Heat Pump Power Consumption?

The power consumption of a heat pump is the electrical energy required to deliver a certain amount of heating or cooling. It depends on the heat output and the system's efficiency (COP).

2. How Does the Calculator Work?

The calculator uses the basic heat pump power formula:

Where:

• \( P \) — Power consumption (kW)
• \( Q_h \) — Heat output (kW)
• \( COP \) — Coefficient of Performance (dimensionless)

Explanation: The formula shows that power consumption equals the heat output divided by the system's efficiency (COP). Higher COP values mean lower power consumption for the same heat output.

3. Importance of Power Calculation

Details: Calculating power consumption helps in sizing electrical systems, estimating operating costs, and comparing the efficiency of different heat pump models.

4. Using the Calculator

Tips: Enter heat output in kW and COP (typically between 2-5 for most heat pumps). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical COP value for heat pumps?
A: Modern heat pumps typically have COPs between 3-5, meaning they deliver 3-5 times more heat energy than the electrical energy they consume.

Q2: How does temperature affect COP?
A: COP decreases as the temperature difference between heat source and delivery increases. Performance is best in moderate climates.

Q3: What's the difference between COP and efficiency?
A: COP is a measure of efficiency - it's the ratio of useful heating or cooling provided to work required. Values greater than 1 are possible because heat pumps move heat rather than generate it.

Q4: Can I use this for cooling calculations?
A: Yes, but use cooling output (Qc) and the cooling COP (which may differ from heating COP for the same system).

Q5: How can I improve my heat pump's COP?
A: Proper sizing, regular maintenance, optimal thermostat settings, and ensuring good airflow can all help maintain high COP values.