不同压力下具有内热源的包装箱内传热特性
发布时间：2018-07-25 20:51
【摘要】：目的研究具有内热源的某产品包装箱在不同压力下的传热特性。方法搭建具有内热源的某产品包装箱传热特性实验系统,对不同压力下内部具有热源的某产品包装箱内的温度场进行测量,讨论产品各部件的传热特性,并基于计算结果,拟合各部件的传热关联式。结果常压状态下各测点温度较低压状态更易达到平衡,箱体内温度场的分布符合被加热物四周热边界层厚度分布规律。包装箱内对流传热能力随着压强的增大而增强,且箱内压强处于较小范围时,压强的增加对于箱内各部的冷却效果更加显著。结论正常工作的温度范围内,该产品包装箱内传热能力的强弱主要受对流传热影响,对流传热能力随着压强的增大而增强;得到了各部件壁面传热关联式,误差在5%以内。
[Abstract]:Aim to study the heat transfer characteristics of a product with internal heat source at different pressures. Methods an experimental system for the heat transfer characteristics of a product package case with internal heat source was set up. The temperature field in the package box with internal heat source was measured under different pressures, and the heat transfer characteristics of each component of the product were discussed, and the results were based on the calculation results. Fit the heat transfer correlation of each component. Results the temperature of the measured points at normal pressure is more easily balanced than that of low pressure, and the distribution of temperature field in the box conforms to the thickness distribution of the thermal boundary layer around the heated object. The convection heat transfer capacity in the box increases with the increase of pressure, and when the pressure in the box is in a small range, the cooling effect of each part of the box is more obvious when the pressure increases. Conclusion in the normal working temperature range, the heat transfer capacity in the package box is mainly affected by convection heat transfer, and the convection heat transfer ability increases with the increase of pressure, and the wall heat transfer correlation of each component is obtained, the error is less than 5%.
【作者单位】： 中国工程物理研究院总体工程研究所;重庆大学;
【基金】：中国工程物理研究院总体工程研究所创新与发展基金(14cxj20)
【分类号】：TB486
本文编号：2145049
[Abstract]:Aim to study the heat transfer characteristics of a product with internal heat source at different pressures. Methods an experimental system for the heat transfer characteristics of a product package case with internal heat source was set up. The temperature field in the package box with internal heat source was measured under different pressures, and the heat transfer characteristics of each component of the product were discussed, and the results were based on the calculation results. Fit the heat transfer correlation of each component. Results the temperature of the measured points at normal pressure is more easily balanced than that of low pressure, and the distribution of temperature field in the box conforms to the thickness distribution of the thermal boundary layer around the heated object. The convection heat transfer capacity in the box increases with the increase of pressure, and when the pressure in the box is in a small range, the cooling effect of each part of the box is more obvious when the pressure increases. Conclusion in the normal working temperature range, the heat transfer capacity in the package box is mainly affected by convection heat transfer, and the convection heat transfer ability increases with the increase of pressure, and the wall heat transfer correlation of each component is obtained, the error is less than 5%.
【作者单位】： 中国工程物理研究院总体工程研究所;重庆大学;
【基金】：中国工程物理研究院总体工程研究所创新与发展基金(14cxj20)
【分类号】：TB486
【相似文献】
相关期刊论文 前4条
1 李栋;王煤;余徽;胡慧杰;纪平均;;非均匀内热源对多孔介质中传热传质的影响[J];四川化工;2006年01期
2 李栋;王煤;余徽;胡慧杰;;具有非均匀内热源的多孔介质中自然对流传热的数值研究[J];计算机与应用化学;2006年07期
3 杨凡超;王洪伟;王彩玲;胡炳j;;第二类边界条件下热电偶非均匀内热源的工程求解分析[J];红外与激光工程;2013年S1期
4 ;[J];;年期
，本文编号：2145049
本文链接：https://www.wllwen.com/guanlilunwen/gongchengguanli/2145049.html
