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How to design cooling system for commercial office building to reduce the emission of carbon dioxide

 First of all we need to understand what is meaning by "carbon dioxide " here. Generally speaking, carbon  dioxide emissions refer to the emissions of greenhouse gases such as carbon dioxide and methane. Carbon reduction action is to reduce greenhouse gas emissions, thereby reducing the greenhouse effect.

If too much greenhouse gas emissions cause the earth's average temperature to be too high, it will lead to global climate anomalies. The most direct result is the melting of glaciers in the Arctic and Antarctic, rising sea levels, submersion of land and coastal cities, and complete disappearance of most islands. Natural disasters that are sensitive to temperature changes, such as typhoons, extreme weather, and forest fires, will increase substantially.

However, while we are carrying out reducing carbon emssion ,we still need confort cooling air in hot seasons. How we deisgn the system to make it greener ? Below is one of the project we have designed with  a high efficient green energy  central air-conditioning system for the one of the commercial office building .
Building structure: civil brick wall structure
Air-conditioning area: about 1250m2
Temperature requirement: 26±2℃
Equipment configuration instructions
1)R1234ze Flooded chiller: 1 unit, cooling capacity 255kw
2)Evaporative condenser: 1 unit, heat dissipation 550kw;
3)Chilled water pumps: 2 (one used and one standby), water flow 45m3/h;

4)Horizontal concealed fan coil unit: 41 units


Central air-conditioning

Solution advantages
1) The entire project adopts centralized cooling, which can improve the degree of automatic control, and the cooling capacity can be allocated to each other, reducing the unit configuration and improving the safety and reliability of the refrigeration system.

2) The cold source adopts evaporative-cooled flooded chiller, which has high refrigeration efficiency and green to the environment R1234ze, low failure rate of the whole machine and simple maintenance.


evaporative-cooled flooded chiller


3) According to the local climate characteristics, the condenser adopts a high-efficiency energy-saving evaporative condenser to reduce the condensing temperature and improve the energy efficiency ratio of the flooded chiller.

AHU

The chiller is equipped with a H.Stars patented heat recovery device, which can produce sanitary hot water above 60°C in the workshop for free all year around.
5) The unit is installed centrally, which does not affect the appearance of the office building and the safety of the outer wall.
6) The refrigerant of the entire system is concentrated in the unit, the refrigerant charge is small, the risk of leakage and the failure rate are far less than that of the multi-line system, and the subsequent maintenance cost is far less than that of the multi-line system.




H.Stars Group has specialized in manufacturing high efficient energy saving large tonnage chillers for 30 years. Welcome to contact us for more details at sales@hstars.com.cn


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