1. Working principles of fresh air system and air conditioner respectively
1. Fresh air system: The working principle of fresh air system is to improve indoor air quality, discharge indoor turbid air out of the room, and outdoor fresh air enters the room through the filter box;
2. air conditioning: the working principle of air conditioning is to improve the indoor cooling and heating, and to cool or heat the air in a closed room so as to make people feel comfortable.
second, the respective roles of fresh air system and air conditioner
① fresh air system: fresh air system is to circulate indoor and outdoor air to ensure the freshness and health of indoor air;
② air conditioning: the biggest and most obvious function of air conditioning is to change the temperature change of indoor air.
the fresh air system and air conditioning are complementary.
Although the fresh air system and air conditioner are very different in system operation, their functions on families are complementary. With people's living standards getting higher and higher, the pursuit of comfort in life is also higher. Air conditioning can only cool and heat to keep people in a comfortable temperature, but it can't ensure the freshness of the air. With the fresh air system, indoor and outdoor air can be benign and bad, and the indoor temperature can be kept clean and refreshing.
conclusion: we can't judge the quality of fresh air system and air conditioner blindly by the difference between them, and we can deny a certain product. We should choose fresh air system and air conditioner according to the specific needs of the owner, which is to adjust the indoor temperature or ensure the indoor air quality.
the first trick: don't blindly covet the low temperature of the air conditioner, just set the air conditioner temperature appropriately, because when the air conditioner is cooling, if the set temperature is increased by 2℃, it can save 2% of electricity. Experts say that for people who are sitting still or doing light work, the acceptable indoor temperature is generally between 27℃ and 28℃, so at this time, everyone can set the air conditioner to sleep, which can also save electricity.
the second measure: 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 air conditioner failure due to long-term uninterrupted operation. So it will be better to choose an air conditioner with more refrigeration power? Not really. According to reports, if the refrigeration power of air conditioner is too large, the thermostat of air conditioner will be turned on and off too frequently, which will lead to increased wear and tear on air conditioner compressor; At the same time, it will also increase the power consumption of air conditioners.
the third measure: close the doors and windows when turning on the air conditioner. Do not open the door frequently in air-conditioned rooms to reduce the infiltration of hot air. At the same time, for air conditioners and window air conditioners with ventilation function, it is not necessary to open the air door for ventilation when there is no odor indoors, which can save 5%-8% energy.
Baidu encyclopedia air-condition