Design and Research of the Commercial Digital VRV Multi-connected Units With Sub-Cooled Ice Storage System

摘要

The ice storage air conditioner is one of the main measures to move the electricity from the peak to the valley. But ice storage system is not spreaded widely in industry in China because of the big space demand and difficult construction, so developing of ice thermal storage system in commercial buildings and home will be a new field which is worth research and development. So a digital multiple variable refrigerant volume air conditioning system with sub-cooled ice storage system has been designed and researched in this paper. The system fundamentals, structure, and design procedure are presented, also the comparison of it with that without ice storage in aspects of cooling capacities, refrigeration efficiencies and super cooling degrees are illuminated in the paper. An economic evaluation for the system is made and it shows that the return period can be less 3 years.