HC Air Conditioning and Refrigeration Network News With the improvement of people's living standards, air conditioners are becoming more and more popular in people's lives. Air conditioning is an indispensable part of our lives, especially in the summer we are inseparable from air conditioning. Recently, it is the peak period for purchasing home appliances, and due to the hot weather, air conditioners have become popular appliances on the market. So do you understand the three important criteria for air conditioning? How to save energy and save energy? Many people have such questions.
Three important criteria for air conditioning
First, the amount of refrigeration (heat)
The amount of heat removed from the confined space per unit time during operation of the air conditioner. Legal measurement unit W (Watts).
The national standard stipulates that the actual cooling capacity of air conditioners should not be less than 95% of the rated cooling capacity. Input power: The power consumed by the air conditioner during cooling (hot) operation under rated conditions, in units of W.
How to calculate the air conditioning refrigeration capacity
The so-called "pick" number of air conditioners originally refers to the input power, including the compressor, fan motor and electronic control part, and the cooling capacity is calculated by the output power.
Generally speaking, the cooling capacity of one horse is roughly 2000 calories, and the international unit should be multiplied by 1.162. Therefore, the cooling capacity of one horse should be 2000 kcal × 1.162 = 2324 (W), here W (Watt) means the cooling capacity, then 1.5 horses should be 2000 kcal × 1.5 × 1.162 = 3486 (W), and so on. According to this situation, the number of air conditioners and the cooling capacity can be roughly determined. In general, 2200W-2600W can be called 1 horse, 4500 (W)-5100 (W) can be called 2 horses, and 3200W-3600W can be called It is 1.5 horses.
After the cooling capacity is determined, the cooling capacity can be estimated according to the actual situation, and a suitable air conditioner can be selected. Household appliances need to consume a large part of the cooling capacity. The power consumption per TV (watt) of TV, electric light, refrigerator, etc. consumes 1 (W), and the direction of doors and windows also consumes a certain amount of cooling. The east window is 150W/M2. The west window is 280W/M2, the south window is 180W/M2, and the north window is 100W/M2. If it is the roof and the west, consider increasing the cooling capacity.
Second, energy efficiency ratio
Also known as the coefficient of performance, it refers to the ratio of the cooling capacity to the cooling power during the cooling operation of the air conditioner, in units of W/W. The higher the energy efficiency ratio, the more power-saving, so when we purchase air conditioners, we can easily distinguish who is more energy-efficient by making a simple energy-efficiency ratio.
Third, noise
The noise generated during the operation of the air conditioner is mainly generated by the internal evaporator and the external condenser. According to the national regulations, the air conditioner indoor unit with a cooling capacity below 2000W should not exceed 45 decibels, the outdoor unit should be no more than 55 decibels, the 2500W to 4500W split air conditioner indoor unit noise should be no more than 48 decibels, and the outdoor unit should be no more than 58 decibels. Therefore, we must pay attention to the noise value of the product when selecting, and purchase it horizontally.
How to save energy and save energy
First, do not covet the low temperature of the air conditioner, the temperature can be set properly. Because the air conditioner is cooled, the set temperature is 2 °C, which can save 20%. For people who are sitting or doing light work, the acceptable temperature in the room is generally between 27 °C and 28 °C.
Second, the filter should be cleaned frequently. Too much dust can plug the mesh and make the air conditioner more laborious.
Third, improve the maintenance structure of the room. For some rooms, the structure of the doors and windows is poor, and the gap is large, and some emergency improvement can be made; for example, the window slit is sealed with a glue paper tape, and a transparent plastic film, a sunshade curtain, and an indoor wall sticker are attached to the glass window. Wooden or plastic panels, white paint on the outside of the wall to reduce the loss of cold air through the outer wall.
Fourth, choose an air conditioner with moderate cooling power. An air conditioner with insufficient cooling power can not only provide sufficient cooling effect, but also shorten the service life of the air conditioner and increase the possibility of using the air conditioner due to continuous operation for a long time. In addition, if the cooling power of the air conditioner is too large, the thermostat of the air conditioner will be switched too frequently, resulting in an increase in the wear of the air conditioner compressor, and at the same time, an increase in the power consumption of the air conditioner.
5. Avoid direct sunlight. In the summer, direct sunlight can cover about 5% of electricity.
6. When the air conditioner is cooled, the position of the air deflector is adjusted to the horizontal direction, and the cooling effect will be better.
7. The air conditioning piping connecting the indoor unit and the outdoor unit is short and does not bend, and the cooling effect is good and does not require electricity. Keep the piping in a horizontal position even if it has to be bent.
Eight, the air outlet is kept smooth. Do not stack enlarged furniture to block heat dissipation and increase unnecessary power consumption. Most notably, air conditioning does not save electricity. It depends on the energy efficiency ratio of each air conditioner. The higher the energy efficiency ratio, the more energy efficient.
The above is the three important standards for the air conditioning advantages and disadvantages introduced by Xiaobian for you and how to save energy and energy in air conditioning, I hope to provide some help for everyone. It may not be difficult to purchase home appliances, but in reality, there are many precautions and shopping points. Take the air conditioner for example, it can not only pay attention to the appearance, the performance of the air conditioner can not be ignored.
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Editor in charge: Fu Shuifang
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