Developing trend of air conditioning system oriented to carbon neutrality in China
Li Xianting[1], Zhao Yang[2], Wei Qingpeng[1], Pang Xiufeng[3], Chen Huanxin[4],Zhang Xiaosong[5], Xie Xiaoyun[1], Lu Bin[3], Luo Bin[6], Xu Hongqing[7], Liu Yu[8]
Heating, ventilation and air conditioning (HVAC) systems in buildings are responsible for about 990 million tons of CO2 emissions annually in China. It is crucial to pay more attention to HVAC systems to peak CO2 emissions, and further to achieve carbon neutrality. This paper provides a comprehensive analysis on the CO2 emissions of HVAC systems in China. The main technical factors and non-technical factors which affect the amount of CO2 emissions of HVAC systems significantly are pointed out. The primary principles for reducing CO2 emissions in the sector of HVAC are also discussed. The key technologies and technical standards and codes in the future are predicted. It shows that we should focus on developing and promoting technologies which can reduce cooling/heating loads and/or increase energy efficiency of devices as well as HVAC systems. It is also urgent to develop effective standards and policies to encourage low CO2 emissions in the HVAC field.