Abstract
In order to study the characteristics of temperature distribution in a forced convection oven, and to optimize the uniformity of the temperature field inside the oven, the experimental and numerical simulation was carried out. The temperature distribution of each layer was measured by 3×3 distributed resistance points (Pt), and the temperature uniformity was measured and analyzed. The Computational Fluid Dynamics (CFD) method is used to simulate the temperature field inside the oven, considering the heat conduction, convection and radiation. The accuracy of the numerical simulation method is verified by the experimental results. Based on the experimental and simulation results, the reasons for the non-uniform temperature field of the original structure of the oven are revealed and analyzed. The uniformity of the temperature field in the oven is improved by adding the guide vane structure, adjusting the position of the heating tube, improving the heating tube and improving the baffle.
Publication Date
6-28-2017
First Page
73
Last Page
78
DOI
10.13652/j.issn.1003-5788.2017.06.015
Recommended Citation
Hong, YUAN; Dazhuan, WU; Shijie, QIN; Xin, ZHENG; Peng, WU; and Bin, HUANG
(2017)
"Study and optimization on characteristics of temperature field in forced convection oven,"
Food and Machinery: Vol. 33:
Iss.
6, Article 15.
DOI: 10.13652/j.issn.1003-5788.2017.06.015
Available at:
https://www.ifoodmm.cn/journal/vol33/iss6/15
References
[1] 顾思源, 刘东, 项琳琳. 影响烤箱内腔温度场均匀性的关键因素分析[J]. 建筑热能通风空调, 2015, 34(2): 54-58.
[2] 刘俊, 刘东, 杭寅. 烘箱内部热环境的数值模拟研究[J]. 建筑热能通风空调, 2006, 25(4): 78-85.
[3] KHATIR Z, PATON J, THOMPSON H, et al. Computational fluid dynamics (CFD) investigation of air flow and temperature distribution in a small scale bread-baking oven[J]. Applied Energy, 2012, 89(1): 89-96.
[4] SMOLKA J, NOWAK A J, RYBARZ D. Improved 3-D temperature uniformity in a laboratory drying oven based on experimentally validated CFD computations[J]. Journal of Food Engineering, 2010, 97(3): 373-383.
[5] 王璟, 刘东, 项琳琳. 某烤箱不同运行阶段内部的传热机理研究[J]. 节能技术, 2015, 33(6): 539-545.
[6] 张蓝心, 刘东, 项琳琳. 不同运行模式下烤箱内腔温度场的优化研究[J]. 建筑热能通风空调, 2015(3): 33-35.
[7] INCROPERA F P. Fundamentals of Heat and Mass Transfer[M]. 6th ed. New York: John Wiley & Sons, 2007: 139-162.
[8] CHHANWAL N, ANISHAPARVIN A, INDRANI D, et al. Computational fluid dynamics (CFD) modeling of an electrical heating oven for bread-baking process[J]. Journal of Food Engineering, 2010, 100(3): 452-460.
[9] 田松涛, 高振江. 基于Fluent的气体射流冲击烤箱气流分配室改进设计[J]. 现代食品科技, 2009, 25(6): 612-616.
[10] 郭磊. 对Fluent辐射模型的数值计算与分析[J]. 制冷与空调, 2014, 28(3): 358-360.