Research Status and Prospect of Vapor Injection Heat Pump Technology
Vapor-injection heat pump(VIHP)technology has become a research hotspot in the field of energy in recent years owing to its advantages of high efficiency,energy saving,and environmental protection under low-temperature conditions.The current research status of VIHP technology is stated based on the existing literature.The application type,compressor type,implementation method,and optimization research are discussed in depth.The advantages and disadvantages of improving the performance of VIHP systems are compared and analyzed.Finally,in combination with existing research problems,the development trend of VIHP is envisioned,thereby providing a reference for future research applications of VIHP technology.