Science and Education Publishing Journal of Food and Nutrition Research 2333-1240 2 9 2014 09 03 Flow Field Analysis and Defrosting Cycle Optimization in a Large-scale Industrial Cold- storage Facility 567 574 EN Enhai Liu Tingting Yu Shengyong Liu Key Laboratory of Renewable Energy of Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China Hongwei Liu JFNR2014297 10.12691/jfnr-2-9-7 2014 07 03 2014 09 01 2014 09 03 We report a joint theoretical and experiment analysis of an industrial cold-storage unit for a large-scale poultry processing enterprise in the Central Plains Economic Zone of China. The flow field inside the unit was analyzed using computational fluid dynamics, which identified an optimum forced air supply of 2.05 m s-1. The defrosting cycle was then optimized experimentally, resulting in an improved defrosting method and a monthly saving of 5,530 RMB in electricity costs. Furthermore, we achieved a reduction in the temperature variation of 1.82% and in the coefficient of performance variation of 1.89%. The refrigerating capacity and electricity costs per unit of production were decreased by 8.30% and 10.20%, respectively.