Thermal storage performance on heat storage of multi-functional heat pump air conditioner

A hot water storage tank is one of key parts of the multi-functional heat pump air conditioner.Its design is very important to be succeeded in applying this saving-energy unit.Mathematic models of hot water storage tank and helical heat exchanger pipe are built by analyzing thermal storage mechanism.And these models are exactly tested by experiment.At the same time,thermal characteristic of a stratified storage tank and performance of refrigerant temperature and dryness are simulated based on built mathematic models.And provides groundwork for this heat storage applying in multi-functional heat pump air conditioners successfully.