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Xie, J., Qu X.H., Xu S.Q., 2005. Numerical simulation and verification of airflow in cold-store. 21, 11-15.

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Article

Flow Field Analysis and Defrosting Cycle Optimization in a Large-scale Industrial Cold- storage Facility

1School of Energy and Building Environment Engineering, Henan University of Urban Construction, Pingdingshan, China

2Key Laboratory of Renewable Energy of Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China


Journal of Food and Nutrition Research. 2014, Vol. 2 No. 9, 567-574
DOI: 10.12691/jfnr-2-9-7
Copyright © 2014 Science and Education Publishing

Cite this paper:
Enhai Liu, Tingting Yu, Shengyong Liu, Hongwei Liu. Flow Field Analysis and Defrosting Cycle Optimization in a Large-scale Industrial Cold- storage Facility. Journal of Food and Nutrition Research. 2014; 2(9):567-574. doi: 10.12691/jfnr-2-9-7.

Correspondence to: Shengyong  Liu, Key Laboratory of Renewable Energy of Ministry of Agriculture, Henan Agricultural University, Zhengzhou, China. Email: ndshyliu@163.com

Abstract

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.

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