What Is a Heat Pump and Why Is It So Efficient?
First of all, you need to know that heat pumps are the new “think green” technology for households and they are outstanding at what they do. Heat pumps are devices that are able to transmit heat from one fluid from a lower to a higher temperature, thus their name. Their reputation started to grow since 2008, when heat pump sales in the United States and the Scandinavian countries have risen 40%.
The thermal energy that is delivered by heat pumps is normally the sum of the heat extracted from a heat source and the energy that it uses to drive the cycle. The performance of these pumps is indicated by the coefficient of performance (COP) which measures the performance of the heat pump during a specific set of temperature conditions.
The COP can also be defined by the ratio of heat delivered by the pump and the electricity supplied to the compressor. The COP or PER (Primary Energy Ratio) of the heat source relates to the discrepancy between the temperature of the heat source and the output temperature of the pump, a phenomenon also known as temperature lift.
The COP of an optimal heat pump is solely determined by the condensation temperature and the temperature lift (condensation-evaporation temperature).
The use of heat pumps to regulate the temperature of internal environments is economical due to the fact that it has a shorter timescale to pay off than the traditional heating and cooling systems,thus greater savings occur in energy costs.
Read more: Top 23 FAQs About Heat Pumps
What Are the Benefits of Heat Pumps?
When it comes to choosing a heat pump there are some things that must be taken into account such as:
- The climate where you live.
- The type of house or building where the heat pump will be installed.
- The number of people living in the house.
- The capacity at which the heat pump will be used.
Although there are some minimum requirements that need to be taken care of when deciding to install a heat pump, the benefits of these machines are exceptional. The list below will surely clarify why heat pumps are beneficial to you and the environment. Here are the top 5 benefits:
The average lifespan of a heat pump is 20-25 years with an annual maintenance that needs to be done by a specialist.
Heat pumps spread the heat or cold uniformly, reducing to almost eliminating hot or cold spots. Plus, humidity levels remain fairly constant because there is no forced air component hence the extra comfort you get in your own home.
They save up a lot of space because there are no fuel storage requirements.
Although installing a heat pump requires a considerable initial investment, in the long-term you will save money on your home’s heating, cooling and electricity costs.
As a result of the energy that comes from the Earth’s internal heat there is a constant supply of power regardless of the weather and there is no reliance on foreign oil. Also, because the energy comes from the Earth and doesn’t require combustion, it is a sustainable and renewable source of energy producing very little greenhouse gases.
The fact that heat pump systems have so few CO2 emissions makes them one of the technologies that are being recommended and sustained by governments world-wide. In 2012, the energy-related CO2 emissions hit a new record of 31.6 gigatonnes, 6.6 billion tonnes of CO2 coming from heating buildings.
If more residential and commercial buildings would start using heat pumps they would help reduce the emissions by 1.2 billion tonnes, which is about 6% of the total global emissions. Not surprisingly this is one of the biggest reductions one single technology has to offer and it is already on the market.
Read more: Is it Worth it to Buy Heat Pumps in the UK?