In recent years, in order to pursue comfort, more and more people use heating for heating in winter, but the problem of environmental pollution also comes. Therefore, the development of pleasant and environmentally friendly heating equipment has become a recent trend in market development. After years of research and development and practical experience, the air energy heat pump scientifically solves the problem of winter supply. However, the air source heat pump opts for electric heating, and we have a different opinion on its power consumption.
Are air source heat pumps actually energy efficient?
Air-energy heat pump is the current mainstream natural heating equipment, which is not only environmentally friendly, but also highly energy-saving. Environmental protection is mainly reflected in the fact that the air energy heat pump chooses electric energy as the only energy source, and will not pollute the environment with gases and solids. Energy saving is mainly reflected in the work of the air energy heat pump, which not only converts the input electricity into heat for heating, but also uses a modest amount of electricity to drive the heat pump to operate, absorb the free heat energy in the air to produce hot water (cold water), and heat the room (cold air).
The air energy heat pump adopts frequency conversion technology on the equipment, so that the whole system is in the most reasonable operation mode and reduces unnecessary waste; at the same time, the jet enthalpy technology is added to the equipment, and the secondary throttling intermediate jet technology is selected to pass the flash evaporator. Separation of gas and liquid to achieve enthalpy effect. At medium and low pressure, the jet is mixed and cooled, and then compressed regularly at elevated pressure, which can increase the displacement of the compressor and improve the heating capacity in a low temperature environment. Therefore, air energy heat pumps can be used for low temperature (-25°C) heating in the environment.
In low temperature environments, there is also a lot of thermal energy in the air. Only by using this part of the heat energy, the air energy heat pump can achieve a great energy saving effect (ordinary air conditioners can no longer work in a low temperature environment). Typically, the energy efficiency ratio of the air energy heat pump is above 3.0, which is equivalent to consuming 1 kWh of electricity to absorb 3 heat energy, so that its heating effect reaches more than 300%, which is one of the equipment with the highest heating effect at present.
Factors affecting the power consumption of air energy heat pump equipment, scientifically avoided
Air energy heat pump has the advantages of comfort, energy saving, environmental protection, stability, safety, long service life and wide adaptability. However, in terms of energy saving, in addition to the influence of the input power of the unit itself, it is also affected by the regional climate, tail equipment and house insulation. How to reasonably avoid these three factors?
Regional climate effects
My country has clear regulations on the heating energy efficiency ratio of air energy heat pumps: -12 °C at ambient temperature, the outlet water temperature of the heat pump host is 41 °C, when the energy efficiency ratio is not less than 2, .1; -25 °C at an ambient temperature, the heat pump The host is up and running properly. Due to differences in temperature and humidity, air-to-energy heat pumps exhibit different heating energy efficiency ratios and different power consumption. The lower the temperature, the smaller the energy efficiency ratio of the air-energy heat pump, the higher the humidity, the more times the air-energy heat pump defrosts, and the more electricity it consumes.
Therefore, when choosing an air energy heat pump, pay attention to the climatic influence of the regional environment. There are also different types of air energy heat pumps in different climates. In general, ambient air heat pumps can be used in areas that are warm in winter. At this time, the air energy heat pump has a high energy efficiency ratio and strong energy saving; in the cold winter area, the low temperature air energy heat pump can be used. At this time, the energy efficiency ratio of the air energy heat pump will be relatively low, but it can also maintain a significant energy saving.
Impact of tail configuration
The air-energy heat pump selects the water system as the medium of indoor heat circulation, so the indoor can be equipped with different heating tails, and the requirements for the water temperature of various heating tails are different, thus the energy consumption is also different. If the floor heating is used indoors, the water supply temperature of the heat pump host only needs to be 35℃-45℃; if the indoor fan coil heating is selected, the water supply temperature of the heat pump host needs to be 40℃-50℃; if the indoor heating is performed by a radiator (fresh radiator, the old cast iron radiator cannot achieve the effect), the water temperature of the heat pump host needs to be above 55 ℃.
Because the higher the outlet water temperature, the more electricity the air-energy heat pump consumes. Therefore, the air energy heat pump is more energy-saving as the tail end of winter heating. Of course, air source heat pumps can heat and cool, and fan coil units are mainly used for summer cooling.
The impact of home insulation
The insulation of the house affects the calculation of the indoor heat load. The better the thermal insulation performance, the smaller the heat loss and the lower the energy consumption. On the contrary, the worse the thermal insulation performance, the greater the heat loss and the greater the energy consumption. This situation is the same for all heating equipment, so the use of air-to-energy heat pumps in poorly insulated buildings will also increase.
For buildings with poor thermal insulation, air energy heat pumps are used for heating. Typically, the heating capacity is increased by increasing the heating heat load and increasing the power of the heat pump equipment. Therefore, when designing an air-to-energy heat pump, professionals are required to conduct an environmental inspection at the construction site, so as to calculate the heat load required by the building. For installed air energy heating equipment, there are also power saving tips for winter use. The heating system should not be switched on and off regularly, windows should not be opened for a long time to ventilate, and seams should not be left to increase heat loss. The use of curtains and window materials with excellent thermal insulation can also have a good thermal insulation effect and reduce the energy consumption of heating pyrogens.
Summarize
When heating with an air source heat pump, the electricity consumption is affected by numerous factors. The most common factors are regional climate, rear equipment and house insulation. For these influencing factors, the corresponding avoidance methods are given above. However, before installing air energy heat pump heating, you should consult the professional air energy heat pump design department and construction team in advance to create a superior-quality air energy heat pump heating system for yourself.
