大黄鱼冷却链用冰量估算系统的设计与评估

Design and evaluation of ice consumption estimated system for Pseudosciaena crocea chilled chain

为准确评估冰鲜大黄鱼流通过程中的用冰量,应用传热学基本理论对流通过程中泡沫箱与外界间的传热进行分析,建立了环境温度0～25℃范围的大黄鱼流通用冰量估算模型,借助Visual Basic开发平台实现了模型在系统中的应用,增加了模型的实际应用功能。通过不同环境温度下的模拟试验,验证了估算系统的准确性,用冰量估算值和实际值间的相对误差在7.0%～16.2%范围内,平均误差为12.3%,用冰量估算系统的偏差因子和准确性因子分别为0.778和1.285,显示建立的估算系统可以快速可靠地估算冰鲜大黄鱼生产流通实际中的用冰量,是监控大黄鱼流通中用冰量的有效工具。

With the purpose of accurately measure the ice needed during the circulation process of iced Pseudosciaena crocea,heat transfer principal theory was applied to analysis the heat transfer between inside and outside of foam box,and an estimation model of ice consumption for Pseudosciaena crocea in the circulation was established based on ambient temperatures from 0 ℃ to 25℃.By the means of platform developed using Visual Basic,this model was applied in the system,which improved its practical application function.The accuracy of the estimation system was also verified through simulation tests under different ambient temperatures.The results showed that relative deviations of estimated values and factual values on ice consumption were in the range from 7.0% to 16.2% with an average deviation of 12.3%,and the deviation factor and accuracy factor of ice consumption estimation system were 0.778 and 1.285,respectively,which suggested the estimation system could quickly and reliably estimate the practical ice consumption during circulation process of iced Pseudosciaena crocea,and could be considered as an effective tool to monitor ice consumption during circulation.