Measures to expand the application range of ammonia refrigerant

¹ School of Intelligent Equipment and Automotive Engineering, Wuxi Vocational Institute of Commerce, Wuxi, 214153, China
² School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China
³ Hua Shang International Engineering Co., Ltd., Beijing 100069, China
⁴ Chinese Association of Refrigeration, Beijing 100142, China

^* Corresponding authors’ e-mail: eygao@car.org.cn (E. Gao), zhangzhongbin@njnu.edu.cn (Z. Zhang)

Abstract

To cope with the climate issue, China has clearly stated the goal of carbon peaking and carbon neutrality. Most of the refrigerants currently used are HCFCs and HFCs refrigerants. These refrigerants have high COP and GWP values and can cause a severe impact on the environment. Ammonia refrigerant is an environmentally friendly natural refrigerant, ODP and COP value are zero, and the cost is low, with significant environmental and operational advantages, large unit cooling capacity, moderate condensing temperature, good thermal conductivity, suitable for refrigerator and cold storage refrigeration, but at the same time ammonia is a toxic gas with a strong pungent odor. Studying measures to expand the application range of ammonia refrigerants is conducive to correctly understanding and using ammonia refrigerants and giving full play to the refrigeration potential of ammonia refrigerants. Promoting the utilization of ammonia, a clean energy, and achieve the purpose of environmental protection.