Speaking of air conditioning is very familiar to everyone, almost everywhere in our lives, but although I can often see air conditioning, Xiaobian feel that everyone's understanding of air conditioning is not necessarily deep, or ask questions Do you know what the meaning of air-conditioning energy efficiency ratio is? Everyone's answer is no, because we usually don't pay attention to air-conditioning energy efficiency than this kind of thing, the following decoration home network Xiaobian wants to introduce air-conditioning for everyone. Calculation method and standard of energy efficiency ratio.
Air conditioning energy efficiency ratio introduction:
Air conditioning energy efficiency, usually the name of the household air conditioning refrigeration energy efficiency ratio (EER), is the ratio of rated cooling capacity to rated power consumption. In addition, the heating and cooling type household air conditioner also includes the concept of heating energy efficiency ratio (COP), which refers to the ratio of rated heating capacity to rated power. However, in terms of air-conditioning usage habits in most areas of China, air-conditioning heating is only an auxiliary means of heating in winter, and its main function is still summer cooling. Therefore, what we generally call air-conditioning energy efficiency usually refers to cooling energy efficiency. Compared with EER, the relevant standards of the country are also used as the basis for delineating the energy efficiency rating.
In layman's terms, air-conditioning energy efficiency is the amount of air-conditioning/heating that is generated by the same amount of electricity. The higher the energy efficiency, the more energy-efficient the air conditioner. Therefore, air conditioning energy efficiency is an important parameter to measure the performance of air conditioning.
The energy efficiency ratio of an air conditioner is the ratio of nominal cooling capacity (heat production) to operating power, ie EER and COP. Household air conditioning refrigeration energy efficiency ratio (EER) is the ratio of rated cooling capacity to rated power consumption. The concept of air conditioning heating efficiency (COP) refers to the ratio of rated heating capacity to rated power.
The air conditioners sold in China all have the color label of “China Energy Efficiency Labelâ€, which is a direct reflection of the energy efficiency ratio of air conditioners. The label is a blue and white background color logo, divided into 1, 2, 3 a total of 3 levels, level 1 indicates that the product has reached the international advanced level, the most energy-saving, that is, the lowest energy consumption; level 2 means more energy-saving; level 3 means product The energy efficiency is the average level of the Chinese market.
Air conditioning energy efficiency ratio calculation method
Air conditioning energy efficiency ratio calculation formula: air conditioning refrigeration energy efficiency EER = cooling capacity ÷ cooling power consumption
Air conditioning heating energy efficiency COP = heating capacity, heating power consumption
In general, the same number of air conditioners, energy efficiency and power saving are higher than the energy efficiency ratio.
For example, a 2 air conditioner with a cooling capacity of 5,000 watts, a cooling power of 2000 watts, an energy efficiency ratio of 5000 ÷ 2000 = 2.50; another cooling capacity of 5,000 watts of 2 air conditioners, cooling power of 1500 watts, energy efficiency ratio: 5000 ÷ 1500 = 3.33. The larger the energy efficiency ratio value, the smaller the electric power consumption of the product is, that is, the power consumption of the air conditioner product is relatively less per unit time.
The first-class energy-efficient fixed-frequency air conditioner achieves 3000W cooling capacity with only 0.83 degrees per hour, and the 3-level energy-efficient fixed-frequency air conditioner achieves the same cooling capacity, requiring nearly 1 degree of electricity per hour. The original 4th and 5th grade energy-efficient air conditioners that have stopped production and sales, but are still used in many households, have reached the same cooling index and require nearly 1.5 degrees of power consumption. If you use the air conditioner for 5 hours a day, the current level 1 air conditioner can save 3.15 degrees per day than the original 5 level air conditioner, and 315 degrees in a summer. Nowadays, some high-end brands such as Daikin and Samsung in the market have superior energy efficiency, and their energy-saving effect is more prominent than that of the first-class energy efficiency standard.
The above is the knowledge about the energy efficiency ratio of air conditioners introduced to you. We choose air conditioners to choose products with good effect and low power consumption, and the energy efficiency ratio can directly reflect the power and efficiency of air conditioners, and more directly tell us what air conditioning effect is good, less electricity, and economic benefits. Therefore, when choosing an air conditioner, try to choose a product with high energy efficiency ratio according to your own needs. If you want to know more, please continue to pay attention to the decoration home network.
More related wonderful reading:
What is the energy efficiency ratio of air conditioners? How is the air conditioning energy efficiency ratio calculated?
What is the meaning of air conditioning energy efficiency rating?
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