Refrigerant is an indispensable part of the air conditioning system, but its usage is often difficult to control precisely. When the refrigerant is insufficient, it may lead to a decline in the performance of the air-conditioning system, a deterioration in the cooling effect, or even malfunction. Therefore, it is particularly important to accurately determine the refrigerant charge.

On August 1, 2024, "Built Environment Health, Low Carbon and Resilience Frontier Science and Technology Forum and HVAC Magazine 2024 Annual Meeting" was successfully held in Xi'an, hosted by Asia-Pacific Institute of Construction Science and Technology Information Research (APCSTI) HVAC Magazine and co-sponsored by Northwest China Architecture Design and Research Institute (NWCDRI).

Multi-unit high-pressure protection is a safety measure in central air conditioning systems that is mainly used in air conditioning systems that use a refrigerant cycle for heat exchange, such as in multi-unit systems.

The temperature of the air outlet surface and the indoor ambient temperature (or the temperature around the air outlet) is too large a difference, the surface temperature of the air outlet is low, coupled with the high humidity of the indoor air, resulting in indoor machine air outlet condensation, air conditioning outlet condensation is a normal phenomenon.
Although condensation dripping is a normal phenomenon, this may lead to moisture and mold on the wall, or even wall paint peeling, both affecting the aesthetics of the home and the use of air conditioning. So how to deal with it?

By the end of 2023, the total scale of data center racks in use in China exceeded 8.1 million standard racks, and the total scale of arithmetic power reached 230EFLOPS, ranking second in the world.