Research progress of cooling energy-saving technology and waste heat recovery technology of data centers

With the rapid advancement of electronic information technology, the problem of high energy consumption of data centers has attracted more and more attention, and a large part of its energy consumption comes from the cooling system. In addition to traditional cooling methods, data centers have focused on energy-saving technologies such as natural cooling technology, liquid cooling technology, and waste heat recovery technology in recent years. This paper provides a summary of recent research progress in data center cooling technology and waste heat recovery technology, meanwhile compares and analyses different cooling technologies and types of waste heat recovery, offering valuable insights for further energy-saving research in this field.