Optimization of operating parameters of liquid-liquid circulation fluidized bed for ice-making based on Exergy method

摘要

A novel method of dynamic ice forming, liquid-liquid circulating fluidized bed, was studied using direct contact heat transfer between drops and the coolant for ice storage system. In order to model multiphase flows and heat transfer in circulating fluidized bed, a numerical model was developed. Exergy discharge was discussed for liquid-liquid circulating fluidized bed based on the second law of thermodynamics. Numerical method was used to study the influence of operating parameters, such as the droplet diameter and the inlet temperature or velocity average of liquid phase, on the ice-making performance and total exergy discharge in the dynamic ice-making process.