Computational Fluid Dynamics Simulation about the Impact of Products on a Cold Store

Article Preview

Abstract:

The unreasonable airflow distribution often occurs in the cold store. Some specific parameters of airflow in the cold store are difficult to obtain in the practical experiments. The unreasonable airflow causes quality decline and large energy consumption. In this paper, the airflow distributions in an empty commercial cold store and the cold store filled with products were studied by CFD and investigated using the 3D modeling method which combined SIMPLE calculation method and finite-volume method. Meshes of the fan were refined locally with the airflow near the walls was modified by applying the non-wall function. Through comparing the airflow distributions in the empty cold store and in the cold store filled with products, differences such as the lower margin velocity, the smaller width and the deviation of the main steam in the cold store filled with products were found.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

3550-3554

Citation:

Online since:

May 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Xie J, Qu X H, Xu S Q, et al. Numerical simulation and verification of airflow in cold-store[J]. Transactions of the Chinese Society of Agricultural Engineering, 2005, 21 (2): 11~16.

Google Scholar

[2] Xie J, Tang Y, Wang J F, et al. Computational Fluid Dynamics simulation of influence of different arrangements of fans to the cold store[J]. Science and Technology of Food Industry (in chinese), 2011, 32 (11): 349~351.

Google Scholar

[3] Foster A M, Swain M J, Barrett R, et al. Experimental verification of analytical and CFD predictions of infiltration through cold store entrances[J].International Journal of Refrigeration,2003, 26 (8): 918~925.

DOI: 10.1016/s0140-7007(03)00097-5

Google Scholar

[4] Nahor H B, Hoang M L, Verboven P, et al. CFD model of the airflow, heat and mass transfer in cool stores[J].International Journal of Refrigeration,2005, 28 (3):368~380.

DOI: 10.1016/j.ijrefrig.2004.08.014

Google Scholar

[5] Hoang M L, Verboven P, De Baerdemaeker J, et al. Analysis of the airflow in a cold store by means of computational fluid dynamics[J].International Journal of Refrigeration, 2000, 23 (2): 127~140.

DOI: 10.1016/s0140-7007(99)00043-2

Google Scholar

[6] Chourasia M K, Goswami T K. CFD simulation of effects of operating parameters and product on heat transfer and moisture loss in the stack of bagged potatoes[J]. Journal of Food Engineering, 2007, 80 (3): 947~960.

DOI: 10.1016/j.jfoodeng.2006.07.015

Google Scholar

[7] Delele M A , Schenk A, Tijskens E, et al. Optimization of the humidification of cold stores by pressurized water atomizers based on a multiscale CFD model[J]. Journal of Food Engineering, 2009, 91 (2): 228~239

DOI: 10.1016/j.jfoodeng.2008.08.027

Google Scholar

[8] Xie J, Qu X H, Shi J Y,et al. Effect of design parameters on flow and temperature fields of a cold store by CFD simulation[J]. Journal of Food Engineering, 2006, 77 (2): 355~363.

DOI: 10.1016/j.jfoodeng.2005.06.044

Google Scholar

[9] Foster A M, Swain M J, Barrett R, et al. Three-dimensional effects of an air curtain used to restrict cold room infiltration[J]. Applied Mathematical Modelling , 2007, 31 (6): 1109~1123.

DOI: 10.1016/j.apm.2006.04.005

Google Scholar

[10] Wei C B, Lu S X, Zhou Z Y, et al. Practical refrigeration and air condition engineering manual[M]. Beijing: China Machine Press, 2011: 368~377.

Google Scholar

[11] Varun S, Omar A, Vikrant A,et al. Simulation of air- to-refrigerant fin-and-tube heat exchanger with CFD-based air propagation[J]. International Journal of Refrigeration, 2011,34 (8): 1883~1897.

DOI: 10.1016/j.ijrefrig.2011.07.007

Google Scholar

[12] Zhang J C, Li X H, Yang J G, et al. Comparison and analysis of computed results for uniformity of intake manifold with different wall functions[J]. Transactions of the Chinese Society for Agricultural Machinery, 2008, 39 (7): 47~50.

Google Scholar

[13] Xie J, Wu T. Numerical simulation on temperature field in the doorway of a minitype cold store[J]. Journal of Shanchai Fisheries University, 2006, 15 (3): 333~339.

Google Scholar