1. What is Heat Pump Energy Consumption?

The energy consumption of a heat pump is the electrical energy required to deliver a certain amount of heat energy. It depends on the heat pump's efficiency, represented by the Coefficient of Performance (COP).

2. How Does the Calculator Work?

The calculator uses the heat pump energy formula:

Where:

• \( Q_h \) — Heat output of the heat pump (kW)
• Time — Operating time (hours)
• COP — Coefficient of Performance (dimensionless)

Explanation: The formula calculates the electrical energy consumed by dividing the total heat energy delivered by the heat pump's efficiency (COP).

3. Importance of Energy Calculation

Details: Calculating energy consumption helps estimate operating costs, compare system efficiencies, and evaluate the environmental impact of heat pump operation.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

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

Q2: How does outdoor temperature affect COP?
A: COP decreases as outdoor temperature drops because the heat pump must work harder to extract heat from colder air.

Q3: Is higher COP always better?
A: Generally yes, but higher COP systems may have higher upfront costs. The optimal choice depends on your climate and energy prices.

Q4: Can I use this for cooling mode calculations?
A: For cooling, use Energy Efficiency Ratio (EER) instead of COP, but the calculation principle is similar.

Q5: How accurate is this calculation?
A: It provides a theoretical estimate. Actual consumption may vary due to factors like temperature fluctuations, system cycling, and maintenance status.