[PConline News] Because of the global climate change, the occurrence of extreme temperature has become more and more frequent. This also puts higher requirements on the performance of air conditioners that we use every day. How to maintain normal stability in the low-end weather conditions? The cooling/heating work is something that major manufacturers have been studying. Just now, I recently had the privilege of going to the beautiful Institute of Refrigeration to see if the United States had any solution to this problem.
First of all, we entered the home air conditioning experience center of the United States. In addition to the air conditioning and its component products of various brands of the United States, the center also established two more characteristic experimental environments, one of which is the low temperature of the United States. Heating experience room.
Low-temperature heating
In the U.S. low-temperature heating experience room, the main demonstration is that after the use of the jet booster inverter compressor, Midea's sirocco series air conditioners emit hot air at an outdoor unit temperature of minus 20 or so.
Test environment: The compressor of the air conditioner is in a sealed acrylic sealed box. According to conservation of energy, when the air conditioner is set to heat, the air conditioner transports the cold air in the room and then discharges it through the outdoor unit, causing the outdoor meeting. It is getting colder, so only a sealed acrylic panel box is needed to demonstrate the low temperature heating performance.
We have selected the temperature difference of a certain indoor unit, repeated sampling, test the comparison of the temperature of the outlet of the US-based sinusoidal arc air-conditioning indoor unit as shown in the following table. In this table, the horizontal axis is the temperature of the sealed box of the outdoor unit, and the vertical axis is Indoor unit outlet temperature.
We can see that the temperature of the air outlet of the indoor unit is very stable in the range from the upper 5 degrees Celsius to the lower 20 degrees Celsius of the outdoor unit. This shows that in the environment where the temperature difference in the outdoor environment changes greatly, because With the use of jet booster inverter compressors, the indoor unit of Midea's arc-arc air conditioners can still maintain a stable state, which also reflects the precise temperature control capability of air conditioners.
With a video attached, let everyone feel more realistic about the scene of low-temperature heating.
From the above figure, we can clearly see that in the case where the instrument we have placed in the outdoor unit has partially frozen, the US-based sirocco series air-conditioners using the jet boosting inverter compressor and the air conditioners representing the industry average are A difference in low-temperature heating capacity.
Summary: Through testing, we will find that in the case of low temperature, whether it is from the heating capacity or the stability of the heating, the US-based sirocco arc series air-conditioners using the jet boosting inverter compressors have reached a relatively high level. A level that can fully meet the needs of air-conditioning users who live in harsh environments.
High temperature refrigeration
After seeing the low-temperature heating, we came to the beautiful high-temperature refrigeration experience room.
After the above experiment, we know that the cooling and heating of the air conditioner is actually a handling process, then there is a need for temperature difference when the need for transportation, when the outdoor temperature and the temperature of the machine is even higher than the temperature of the outdoor unit, many air conditioning refrigeration The ability will be greatly reduced, or even disappeared. Therefore, based on this situation, Midea has taken the lead in adopting the invention's patented high-temperature and high-frequency refrigeration technology, using the refrigerant as the outdoor control system for cooling, so that the air-conditioning can continue to operate in a high-temperature environment.
We have chosen to repeat sampling on the temperature difference of a certain indoor unit. The following table shows the temperature comparison of the air outlets of the Midea indoor unit. The horizontal axis is the temperature of the sealed box where the outdoor unit is located. The vertical axis is Indoor unit outlet temperature.
As we can see from the above table, although the temperature of the outdoor unit has been rising during the test, the outlet temperature of the indoor unit still maintains a relatively stable state. It may be difficult for us to imagine what the 50 degree Celsius is. The analogy of this kind of state is that the surface of our thermometer has been able to smell the temperature of the glue.
Attach a video section to give everyone a more direct experience of the high-temperature cooling of the site.
The figure above shows the comparison between the air outlet temperature of the Midea series air conditioner adopting the high-temperature high-frequency refrigeration technology and the air outlet of the air conditioner representing the average level of the industry. We should not underestimate the temperature difference of this 5 degree, which is likely to be determined The speed of temperature control, we do not want to open air conditioning as soon as possible effective?
Summary: Because of the relationship between time and environment, we can usually test air conditioners such as power consumption, temperature curve, noise, and power consumption. However, in this short experience, we found that high-temperature cooling and low-temperature heating The principle is actually not very complicated, but to achieve this is still very particular about the company's R & D capabilities, with the global compressor sales leader Meizhi company as a strong backing, the United States of America's air-conditioning in the technical give a bright spot Feeling, start to take the beauty of technology flow, will certainly become a very competitive manufacturer on the market, colleagues, are you ready to accept the challenge?
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