With the continuous progress of mankind, while people have higher requirements for the safety, comfort, and efficiency of the building environment quality, the energy consumption of public buildings continues to increase. In recent years, the world's environment and climate have become the primary issues due to the high energy consumption and greenhouse gas emissions, and public buildings are one of the most important issues in climate warming.

After researching and analyzing the energy consumption data of each unit, the average value of energy consumption and carbon emission intensity of each type of building and public facility land is calculated according to the carbon dioxide emission factors in the "China Energy Statistical Yearbook". The public buildings with the largest average carbon emissions are drainage groups, international trade centers, office buildings, colleges and universities, supermarkets, and the financial and insurance industries. The annual carbon emissions are more than 50,000 tons. The government puts forward clear standards for "low-carbon" energy saving and emission reduction in public buildings.

The humidity environment suitable for human health is 40%-60% RH, and bacteria are most likely to breed in places that are locally humid or prone to water, such as basement walls, air-conditioning ducts, evaporators, cold water coils, carpets, furniture walls, etc... ...Dehumidification in these places is essential, and they should be cleaned regularly to ensure fresh air.

Puresci responds to the national call to launch a combination of multi-dimensional refrigeration and dehumidification wheels to ensure safety for people. While higher comfort is required, it also saves energy consumption for public buildings.

Traditional low-temperature cold water systems are developing towards high-temperature cold water systems. Under the policy guidance of "carbon neutrality" and "carbon peak", and guided by the theory of independent control of temperature and humidity, the coupled application of high-temperature cold water systems and low-temperature dehumidification rotor systems is The future development direction of air-conditioning systems in commercial and public buildings. 

KEY WORDS : #desiccant rotor   # dehumidification  # public buildings  #dehumidification wheel  # air-conditioning  #energy -saving