电伴热下极地装备踏步板构件的对流换热影响

doi:10.16183/j.cnki.jsjtu.2023.042

上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (11): 1687-1697.doi: 10.16183/j.cnki.jsjtu.2023.042

电伴热下极地装备踏步板构件的对流换热影响

韩雪阳¹, 吴琳¹, 刘志兵², 于东玮³, 孔祥逸¹, 张大勇¹^,⁴()

1.大连理工大学海洋科学与技术学院,辽宁盘锦 124221
2.中国船舶及海洋工程设计研究院,上海 200021
3.大连理工大学运载工程与力学学部,辽宁大连 116023
4.大连理工大学宁波研究院,浙江宁波 315000

收稿日期:2023-02-10 修回日期:2023-09-04 接受日期:2023-09-11 出版日期:2024-11-28 发布日期:2024-12-02
通讯作者: 张大勇,教授,博士生导师;E-mail:zhangdy@dlut.edu.cn.
作者简介:韩雪阳(1998—),硕士生,从事海洋工程装备防寒设计研究.
基金资助:
工信部高技术船舶科研项目(CBG2N21-2-2);中央高校基本科研业务费资助(DUT22QN237)

Influence of Convection Heat Transfer of Tread Plate in Polar Environment

HAN Xueyang¹, WU Lin¹, LIU Zhibing², YU Dongwei³, KONG Xiangyi¹, ZHANG Dayong¹^,⁴()

1. College of Marine Science and Technology, Dalian University of Technology, Panjin 124221, Liaoning, China
2. China Shipbuilding and Ocean Engineering Design and Research Institute, Shanghai 200021, China
3. Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116023, Liaoning, China
4. Ningbo Institute of Dalian University of Technology, Ningbo 315000, Zhejiang, China

Received:2023-02-10 Revised:2023-09-04 Accepted:2023-09-11 Online:2024-11-28 Published:2024-12-02

摘要/Abstract

摘要：

为解决恶劣极地环境引起的海洋装备防寒问题,工程上通常采用电伴热的方式.采用数值模拟和实验的方法,对电伴热踏步板构件在典型极地环境下热平衡的影响因素进行分析.环境要素为风速和温度,风速为0~40 m/s、温度为-40~0 ℃.基于数值仿真和实验测试获得电加热踏步板构件在不同风速及温度下的对流换热系数.结果表明,增大风速和降低温度都会增大踏步板的对流换热系数;风速是影响踏步板换热的主要因素,而温度的影响较小.基于实验数据,参考平板构件对流换热的经典理论,建立电加热踏步板构件的对流换热系数预测模型,并采用数值仿真验证该模型的正确性.

关键词: 极地防寒, 踏步板, 对流换热, 数值模拟, 热平衡

Abstract:

To solve the problem of cold protection for marine equipment against cold caused by the harsh polar environment, electrical tracing is commonly used in engineering. In this paper, numerical simulation and experimental methods are used to analyze the influencing factors of thermal balance of electric heat tracing tread plate components in typical polar environment with wind speed ranging from 0 to 40 m/s and temperature ranging from -40 ℃ to 0 ℃. Based on numerical simulation and experimental test, the convective heat transfer coefficient of electric heating tread plate components at different wind speeds and temperatures is obtained. The results show that increasing wind speed and decreasing temperature will increase the convective heat transfer coefficient of the tread plate. Wind speed is the main factor affecting the heat transfer of the tread plate, while temperature has little effect. Finally, based on the experimental data and the classical theory of convective heat transfer of plate components, a prediction model of convective heat transfer coefficient of electric heating tread plate components is established, and the correctness of the model is verified by numerical simulation.

Key words: polar cold-proof, tread plate, convective heat transfer, numerical simulation, thermal balance

中图分类号:

U662
TK1

韩雪阳, 吴琳, 刘志兵, 于东玮, 孔祥逸, 张大勇. 电伴热下极地装备踏步板构件的对流换热影响[J]. 上海交通大学学报, 2024, 58(11): 1687-1697.

HAN Xueyang, WU Lin, LIU Zhibing, YU Dongwei, KONG Xiangyi, ZHANG Dayong. Influence of Convection Heat Transfer of Tread Plate in Polar Environment[J]. Journal of Shanghai Jiao Tong University, 2024, 58(11): 1687-1697.

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实验测量装置	数量/个	测量范围	精度
温度实时采集仪	1	-999~999 ℃	±0.5 ℃
PT100温度传感器	板温×6, 风温×2	-50~300 ℃	±0.1 ℃
NK1000高精度风速仪	1	0.6~60 m/s	1%

试验编号	T/℃	v₀/(m·s^-1)	h/ [W·(m²·K)^-1]
1	-4.9	5.3	44.6
2	-4.8	9.5	81.7
3	-5.0	12.5	108.3
4	-9.8	5.0	46.2
5	-10.1	9.2	80.7
6	-10.0	12.9	111.8
7	-14.8	5.2	47.1
8	-15.1	9.2	83.0
9	-14.9	13.0	118.2
10	-20.0	5.4	48.3
11	-19.6	9.7	85.2
12	-19.9	13.1	122.3
13	-25.0	5.4	48.6
14	-26.0	9.7	87.0
15	-25.0	13.3	128.5
16	-29.0	5.2	48.0
17	-30.6	9.3	89.7
18	-30.7	13.3	135.1
19	-35.1	5.8	50.5
20	-34.2	9.8	94.0
21	-34.1	13.3	137.4
22	-39.4	5.5	50.4
23	-39.0	9.6	92.5
24	-38.9	13.9	154.1

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电伴热下极地装备踏步板构件的对流换热影响

Influence of Convection Heat Transfer of Tread Plate in Polar Environment

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