Development of Packaged Air Conditioner with Two Phase Pipeline System for Reduced Refrigerant

摘要

Reduced production of HCFCs is due to start from 1996 aiming at phasing them out by 2020. We have developed a system for use in packaged air conditioners in which refrigerant flows in two phases (the liquid & gas phases) in a interconnecting pipe. As a result, the amount of refrigerant in the system is reduced by 42 approx 77 percent when compared with a conventional system in which refrigerant flows in the liquid phase instead of two phases. Furthermore, it shows a lower drop in performance in the case of a high-head installation.