The Influence of Different Inlet Methods on the Heat Storage Efficiency of Large Water Bodies
Regarding the problem of mismatched cross seasonal heat storage time in large water bodies,in this paper the impact of different inflow methods on heat storage efficiency was analyzed to reduce the heat loss during the heat storage process.An model for water thermal storage analysis was established by CFD numerical simulation software.The heat exchange law during water thermal storage process was analyzed,and the influencing factors such as single and double inlet,horizontal spacing,dynamic inflow,and flow velocity on water thermal storage efficiency were discussed.The research results showed that the smaller the total inflow rate,the better the temperature stratification inside the water body.Within the same heat storage time,the heat storage efficiency with the dual inlet method had better than that of single inlet and dynamic inlet,and the average temperature inside the water body high at least 16.83％,and the heat storage efficiency being increased by 9.89％and 16.14％respectively.Compared to the single inlet,the exergy loss with the double inlet method was reduced by 21.97％.And the smaller the distance between the inlet pipes,the higher the heat storage efficiency of the water body.So the water inlet method has a crucial impact on the thermal storage efficiency of water bodies.The closer the inlet pipeline is to the central axis,the better the thermal storage efficiency can be achieved by using a small flow rate and double inlet form.
万方数据
维普
