CiteSpace-based clean heating policy and technology development process and trend analysis

The knowledge graph generated by knowledge context analysis shows that price policy, clean heating technology and clean energy are research hotspots in recent years.Based on the method of biliometric analysis, this paper researches the hotspots, development process and trend of clean heating from 2000 to 2021 through CiteSpace.The results show that the development of clean heating policy and technology in northern China has gradually transitioned from simple subsidy and single technology path to market mechanism and multi technology combination scheme.