In response to the shortcomings of high melting point,easy freezing and blocking,and high maintenance cost of commercial binary molten mixed nitrate,modification is made by adding LiNO3 to binary salt by using static melting method.Melting point and phase transition latent heat of prepared ternary molten mixed nitrate with wide service temperature range were analyzed by using simultaneous thermal analyzer.After heat storage cost calculation,two groups of molten mixed nitrate formulations with better comprehensive property were optimized.The density,viscosity and thermal conductivity of the optimized molten mixed nitrate were measured by high temperature molten salt density meter,high temperature molten salt viscosity meter and laser thermal conductivity meter.The result shows that the optimized molten salt heat storage material can meet the engineering application of medium and high temperature heat storage system.
万方数据
维普
