MODELING AND TESTING OF AN ICE BANK FOR MILK COOLING AFTER MILKING

ABSTRACT Based on mass and energy balance equations and data collected in specialized bibliographies, it was proposed a methodology for modeling of an ice bank for thermal storage of energy at low temperature to be used in milk cooling. The data obtained by the equations arrangement were used in the design and installation of a real system, which was tested to collect data and to compare it with the estimated. The data obtained in terms of prediction of ice formation, temperature of the ice bank, water and capacity of the selected refrigeration system prove the adequacy of the equations arrangement, showing that it can be used as a tool for sizing solid ice bank in smooth pipe coils, with good approximation.摘要 基于质量与能量平衡方程及专业参考书目收录的实验数据，本文提出了一种用于牛奶冷却的低温蓄能冰库建模方法。通过方程整理得到的计算数据被应用于实际系统的设计与安装，并通过实测采集数据，将实测结果与模型预估结果进行对比。针对结冰量预测、冰库温度、冷却水温度以及所选制冷系统制冷量的实测数据均验证了该方程整理方法的合理性，结果表明该方法可作为光滑管盘管式固体冰库尺寸选型的可靠工具，且具备良好的拟合精度。