Air conditioning energy consumption standards will start long-term energy efficiency assessment mechanism

The question of "energy-saving air-conditioning is not energy-efficient" in the domestic market has been incessantly heard. Yesterday (July 3rd), the China Quality Certification Center established by the State General Administration of Quality Supervision, Inspection and Quarantine announced that it will establish a long-term energy-saving assessment mechanism for air-conditioning, and use the energy consumption index of air-conditioning in the process of use for a period of time as a technical reference, and resolve some Enterprises consider the rated power as the energy consumption index when the actual power is used.

Xia Jianjun, Director of China Quality Certification Center, introduced that the detection of future air-conditioning energy efficiency will be different from the previous tests based only on laboratory data. “Long-term air-conditioning energy-saving assessment” is currently the only energy-saving indicator based on the actual use of products in China. The comprehensive performance test made. Taking Midea as an example, the long-term energy-saving test process of its full DC inverter air conditioner lasted for one month, and it has the features of energy saving attenuation rate, durable parts life, and harsh environment operation, as well as long-haul performance, high temperature performance, low temperature performance, standby power consumption, The indexes such as cold-to-heavy ratio were comprehensively tested. Wang Lei, deputy director of the China Household Electrical Appliances Association, said: "This test is intended to emphasize that air-conditioning products must not only have high energy efficiency, but also maintain a relatively stable energy-saving effect during the life cycle."

In recent years, the process of popularizing energy-saving air-conditioners in China has accelerated. However, many consumers have reported that the indicators such as rated power and energy efficiency index marked by air conditioner manufacturers have a large deviation from the actual power consumption in the process of use, which also raises the question of “energy-saving air-conditioning is not energy-efficient”.

In this regard, Xia Jianjun pointed out that the emergence of such problems is mainly because of the energy efficiency indicators of all home appliances such as air conditioners all the time, all based on laboratory data as the benchmark energy-saving test index. As for the long-term energy-saving effect of air-conditioning in actual use environment, there is no objective and intuitive standard and basis, so there will be cases where the company labels the power consumption name as inconsistent.

In fact, flat-panel TVs have previously stopped using rated power to evaluate energy consumption. Because flat panel TV products are influenced by factors such as brightness and darkness of the display during use, the power consumption is not constant, so the concept of "average power" is introduced.

Xia Jianjun pointed out that the China Quality Certification Center will work with the relevant state agencies and industry leading companies to promote the "long-term energy-saving assessment of air-conditioning", making it an important evaluation criteria for government procurement and consumers to buy air-conditioning. Such an evaluation method can use a more scientific method to evaluate the actual energy consumption of air conditioners and help increase the credibility of energy conservation certifications. At the same time, by studying the use characteristics, performance degradation, and simulation methods of air conditioners, the main factors influencing the energy efficiency of the room air conditioners during use are identified, and the energy conservation technology of the air conditioning industry can be promoted.