What is the energy efficiency grade of an induction cooker? Is a higher energy efficiency grade of an induction cooker always better
The energy efficiency label of the pot induction cooker
High-power hot pot induction cookers have developed at an extremely rapid pace in recent years. Due to their advantages such as speed, convenience, energy conservation, high efficiency, environmental friendliness and hygiene, they have become a shining pearl in China's small household appliances market. With the improvement of safety and technical performance of induction cookers and the increase in consumer awareness, induction cookers are gradually becoming major household appliances and major electricity consumers. In order to enhance the energy utilization efficiency of induction cookers, guide the energy-saving technological progress of manufacturing enterprises, and encourage enterprises to produce high-efficiency and energy-saving products, in May 2005, The energy efficiency standard for induction cookers has been officially included in the national standard formulation and revision plan. What are the regulations for the energy efficiency labels of induction cookers?
In recent years, relevant state departments have successively issued multiple laws, regulations and related documents, formulating specific plans for the situation and development direction of energy conservation work. It is proposed to vigorously promote the management system of energy-saving product certification and energy efficiency labels, and guide users and consumers to purchase energy-saving products.
According to regulations, energy efficiency labels are affixed by manufacturers based on the actual situation of their products and the uniform style set by the government, which is known as "self-declaration", but they must also be filed with the Energy Efficiency Label Management Center of the China National Institute of Standardization. Although energy efficiency labels are self-affixed, it does not mean that this system is voluntary. On the contrary, it is mandatory. Both the Energy Conservation Law and the Measures for the Administration of Energy Efficiency Labels clearly stipulate that relevant products must adopt energy efficiency labels.
After the first stage of data collection and industry investigation, the second stage of the national energy efficiency standard drafting group meeting, and the third stage of soliciting opinions on the standard, the energy efficiency standard has now formed a draft for approval and entered the approval stage. Article 4.2 of the energy efficiency standard for induction cookers is a mandatory provision, while the rest are recommended provisions. Its main content stipulates the energy efficiency limit value, energy-saving evaluation value, determination method of energy efficiency grade, test method and inspection rules for household induction cookers. The energy efficiency standard for induction cookers applies to induction cookers with a rated power of a single heating unit ranging from 700 to 2800w. Induction cookers with one or more heating units: Not suitable for commercial induction cookers, power frequency induction cookers and concave cookers.
The thermal efficiency limit for induction cookers with a rated power greater than 1200w is 84%, and for those with a rated power of 12OOW or less, it is 82%. The trend of thermal efficiency changes of induction cookers at different power ranges is basically the same: as the power continuously increases, the thermal efficiency basically shows an upward trend. When the power increases from 5OOW to 1200w, the thermal efficiency rises rapidly. However, after the power exceeds 1200w, the increase in thermal efficiency becomes relatively gentle. Therefore, the thermal efficiency of some power segments is not considered here.
Measure the standby state power. The limit value is 5W within levels 3 to 5, and 2W within levels 1 to 2. The thermal efficiency of an induction cooker is measured by referring to the standard pot specified in Appendix A under the prescribed test conditions, based on the various data of the induction cooker.
So, how do we determine the level of energy efficiency grades? Is it true that the higher the grade, the better? Let's take a look at this issue together.
When many consumers choose large appliances such as air conditioners and refrigerators, they pay great attention to the energy efficiency labels, that is, the energy-saving functions, but they are not very concerned about the energy-saving functions of small appliances like induction cookers. In fact, the power consumption of some small household appliances that are used frequently far exceeds that of large ones. It is understood that a 2000-watt ordinary induction cooker consumes more than 2 kilowatt-hours of electricity to cook hot pot for one hour, while some energy-saving refrigerators only consume 0.62 kilowatt-hours of electricity in 24 hours a day. Therefore, when purchasing small household appliances, more attention should be paid to energy efficiency labels.
It is understood that currently in the field of small household appliances, only induction cookers have implemented energy efficiency labels. Among them, Grade 1 energy efficiency indicates that the energy-saving technology has reached the highest level in the industry at present, with the lowest power consumption and the highest thermal efficiency. Recently, Supor has taken the lead in launching a Class 1 energy efficiency induction cooker, which is also the first Class 1 energy efficiency induction cooker to hit the domestic market. According to the salesperson at the home appliance store, "In the past, when consumers chose induction cookers, they often first looked at the price. In fact, using high-efficiency and energy-saving products can bring more benefits to life. When purchasing, they should pay more attention to the energy efficiency label and choose energy-saving products with a grade 1 energy efficiency."
According to home appliance technicians, when choosing an energy-saving induction cooker, in addition to checking the energy efficiency label, you can also look at the coil technology. At present, the 1-level energy efficiency induction cooker adopts the patented stacked energy-concentrating coil technology, which enables the thermal efficiency of the induction cooker to reach 90%, reaching the highest level in the industry at present. The higher the thermal efficiency, the less heat energy is lost, which makes the heating speed faster and consumes less electricity.
In addition, salespeople in home appliance stores also emphasize that when choosing energy-saving induction cookers, the quality of the pot should not be ignored. Cookware is an important factor affecting the energy efficiency of induction cookers. The energy efficiency ratio of an induction cooker is a value under laboratory conditions, and the cookware used for testing must also be a standard pot. For instance, a Class 1 energy efficiency product with an energy efficiency ratio of 90%, if it uses non-standard cookware, the detected energy efficiency might only be Class 3 or 4.