Air conditioners are used to treat indoor air and allow us to cool our homes and offices to remain comfortable even in the warmest of days. Buying an air conditioner is an important decision and is often based on a number of factors. Here, we emphasize on the question of efficiency and discover, are some air conditioners more efficient than others?
The answer to this can be better understood by explaining a few technical factors so that you will be able to make a better decision about how different air conditioners, even with the same cooling capacity, can have efficiency discrepancies.
Here are some of the factors that play an important role in deciding the efficiency of an air conditioner we commonly employ at our homes and offices.
The compressor of an air conditioner determines the total electricity consumption of the unit. It is the part where mechanical work is done on a refrigerant to turn it into a liquid. The power consumed by a compressor is measured in Watts and usually, more powerful compressors can use as much as 5,000 watts of electricity.
An efficient generator needs to find the ideal balance between the power that the compressor consumes and the amount of refrigerant that it makes available for the purpose of cooling the circulating air.
The cooling coils of an air conditioner are also termed as the evaporator. This is where the heat exchange takes place and the heat of the incoming air is absorbed by the refrigerant. These coils can develop ice on them due to the local temperature going below the freezing point of water. This can decrease the efficiency of an air conditioner.
Air conditioners that have better cooling coils are able to better conserve energy and produce energy savings over consistent use as well as save a person from suffering maintenance and service costs that are often associated with air conditioners with mediocre cooling coils.
The refrigerant used in the air conditioner often plays an important part in signifying its efficiency. It is one of the primary reasons that explain why some air conditioners are more efficient than others.
Currently, there are two gases that are used in the AC units. There is the older R-22 or the newer R-410A. R-22 was used in older units and currently manufactured units cannot use it well. R-410A is the new industry standard and it is much more efficient as it has a greater thermal capacity than the older R-22. This means that air conditioners that use the R-410A are much more efficient and are also eco-friendly because it does not damage the ozone layer.
Energy Efficiency Ratio
The Energy Efficiency Ratio of an air conditioner is found by dividing its rated BTUs from its consumed power. Generally, the higher the ratio, the more efficient is the air conditioner. This ratio depends on several factors such as the use of efficient materials as well as a heavy duty compressor and pure copper coils that efficiently transfer refrigerants in different parts of the unit.
Energy Star compliance is often used in the United States to state if a device is specially manufactured to save energy. It is signified by displaying the energy star symbol and having an EER of over 10.
These are some of the concepts that will allow you to answer the question: are some air conditioners more efficient than others in a precise manner. Units that have a heavy duty compressor, an excellent evaporator and R-410A refrigerant gas are certainly leading the efficiency race in the industry.
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