渔业现代化2023，Vol.50Issue(6)：93-102,10.DOI:10.3969/j.issn.1007-9580.2023.06.011
南极磷虾热风干燥特性及干燥模型
Hot air drying characteristics and drying model of Antarctic krill
摘要
Abstract
To study the hot air drying characteristics of Antarctic krill and establish a drying model.Methods:Using frozen Krill as raw material,the effects of different temperature and drying quantities on the drying time and drying rate of krill were studied,and the effective diffusion coefficient and drying activation energy of krill were analyzed under different drying conditions.Five drying models,Lewis,Henderson and Pabis,Page,Modified Page,Wang and Singh,were used to fit the test data.The optimal drying model was determined and validated with the determination coefficient R2,Chi-square test value X2,root mean square error M and error fair sum S as the model fitting effect evaluation indexes.Results:The drying time was shortened and the drying rate increased with the increase in temperature or decreased drying quantities.The influence of drying amount on drying time and drying rate was less than that of temperature.When the temperature was 50-100℃,the effective diffusion coefficient of water was 1.459×10-8-6.310×10-8,and the dry activation energy was 29.599 kJ/mol.When the drying amount was 0.5-3.0 kg,the effective diffusion coefficient of water was 4.630×10-9-3.533×10-8.By comparing the fitting effect evaluation indexes of the five models,it was found that the Page model had a high R2 value and a low X2,M and S value,which could better fit the test data of Antarctic krill.The model's predicted value had a high degree of coincidence with the test value,and it could accurately predict the change law of water ratio in the hot-air drying process of Antarctic krill.Conclusion:Increasing the temperature or decreasing the drying amount can shorten the drying time and increase the drying rate.Page model can accurately describe the hot-air drying process of Antarctic krill,and provide a theoretical basis for predicting and controlling the hot-air drying process of Antarctic krill.关键词
南极磷虾/热风干燥/干燥特性/干燥模型Key words
Antarctic krill/hot air drying/drying characteristics/drying model分类
轻工业引用本文复制引用
马田田,欧阳杰,肖哲非,沈建..南极磷虾热风干燥特性及干燥模型[J].渔业现代化,2023,50(6):93-102,10.基金项目
中国水产科学研究院渔业机械仪器研究所中央级公益性科研院所基本科研业务费专项(2023YJS001) （2023YJS001）
