Wednesday, January 5, 2011
【 Weak current College 】 fixed frequency and level of energy efficiency inverter air conditioner not comparable 】
Inverter air conditioner compressor speed by Inverter control, no frequent opening of the compressor to adjust the room temperature is one of the directions of development of air conditioner, have now been accounted for 10% of the Chinese air conditioner market — 15% of the share. However, many marketing inverter air conditioner-based enterprises issued a 5-level set frequency air conditioning energy is better than 2-air conditioning-sound, so that consumers are quite confusing. The fact is this? it is understood that Shanghai has 1 June enforce domestic first inverter air conditioner efficiency standards in place — the speed (frequency) room air conditioner limited values of energy efficiency rating, the standard will be the level of energy efficiency inverter air conditioner is divided into five levels, level 5 is the Shanghai qualified market access, it is directly corresponds to an ordinary fixed-frequency air conditioning energy efficiency level 2 to level. In accordance with national standards, constant-speed air conditioning energy efficiency rating of level 2 of the EER 3.2, according to GB/T7725-2004 the room air conditioner on Appendix E SEER air conditioner on the speed of the calculation method for calculation, the corresponding 3.2 EER constant speed of SEER air conditioner as 3.263 inverter air conditioner entry is set to the SEER3.30. And this is a lot to inverter air conditioners based manufacturers take this view with the number of horse air-condition 5-level 2-level energy efficiency than the speed of the main basis. This statement actually confused five-level energy concept. This "grade level" is not he "," inverter air conditioner business simply wanted to steal for "v" and "secondary" concept of energy consumption level, use the "horse racing" policy tianji attack fixed frequency and air conditioning. In fact, fixed frequency inverter air conditioner and air conditioning is not comparable. Training resource and environmental standardization Institute senior engineer to build macro Express, 5-level inverter air conditioner and air conditioning fixed frequency 2-level are not comparable. First of all, the way from the detection of air conditioning and fixed frequency inverter air conditioner is not the same. Secondly, the electrical environment. To build a macro that only in low load, the power inverter air conditioner, comfort, and other benefits can obviously play, Chinese consumers are under high temperature air conditioner only, so the frequency of the advantage does not fully reflect. "Energy-efficiency inverter air conditioner testing and full air conditioning fixed-frequency, the two cannot be compared to the former can only follow the Seer to detect. "Beijing University of technology school of environment and Energy Engineering Science Department senior engineer of refrigeration lihongqi said, will be held on September 1, enforced the speed controllable type room air conditioner limited values of energy efficiency rating (GB21455-2008) provides air-condition the limited value of energy efficiency and evaluating values of energy conservation, energy conservation, energy efficiency levels, test methods and test rules. Standard inverter air conditioner efficiency standards are divided into five levels, one level, the highest level of energy efficiency, energy saving is achieved level 2 certification is the minimum allowed value that is evaluating values of energy conservation, 3, 4 level represents the average Chinese air-condition, 5-level energy efficiency level is the standard implementation of market access barriers to entry that limited values of energy efficiency. Its specific provisions, rated cooling capacity is less than or equal to 4500 Watt inverter air conditioning energy efficiency of refrigeration season is greater than or equal to 3.0, rated cooling capacity greater than 4500 Watts, less than or equal to 7100 Watt inverter air conditioning energy efficiency of refrigeration season is greater than or equal to 2.9, rated cooling capacity greater than 7100 Watt, less than or equal to 14000 Watt inverter air conditioning energy efficiency of refrigeration season is greater than or equal to 2.8. This shows that the inverter air conditioner 5 level than fixed frequency 2-level more energy to consumers is a misleading, they are simply not comparable. Energy-saving air conditioning energy saving is also affected by consumer spending habits.