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林业科学 ›› 2018, Vol. 54 ›› Issue (11): 149-157.doi: 10.11707/j.1001-7488.20181121

• 研究简报 • 上一篇    下一篇

太阳能储能地板设计及传热模型仿真分析

周玉成1, 宋明亮2, 马岩2, 杨春梅2, 张佳微2, 邓英健2, 蒋婷2   

  1. 1. 山东建筑大学信息与电气工程学院 济南 250101;
    2. 东北林业大学机电工程学院 哈尔滨 150040
  • 收稿日期:2018-04-04 修回日期:2018-08-28 出版日期:2018-11-25 发布日期:2018-12-04
  • 基金资助:
    泰山学者优势特色学科人才团队(2015162);中央高校基础研究经费项目(2572016EBT1)。

Design of Solar Energy-Storage Flooring and Simulation Analysis of Heat Transfer Modeling

Zhou Yucheng1, Song Mingliang2, Ma Yan2, Yang Chunmei2, Zhang Jiawei2, Deng Yingjian2, Jiang Ting2   

  1. 1. School of Information and Electrical Engineering, Shandong Jianzhu University Jinan 250101;
    2. College of Mechanical and Electrical Engineering, Northeast Forestry University Harbin 150040
  • Received:2018-04-04 Revised:2018-08-28 Online:2018-11-25 Published:2018-12-04

摘要: [目的]提出一种新型太阳能储能地板供暖系统,为家用型供暖地板系统的设计和研究提供参考和理论基础。[方法]首先介绍太阳能储能地板总体结构和构成,基于三维软件绘制太阳能储能地板供暖系统的三维实体;然后分析太阳能储能地板的工作原理和传热过程,对室内地板供暖系统的主要工作过程进行分析;最后根据热平衡关系对太阳能储能地板供暖系统中的铝芯-地板-保温层系统传热数学模型,对各控制单元的数学关系模型进行离散化,采用MATLAB软件对数学模型进行仿真,得出铝芯和地板截面的温度分布云,并结合ANSYS软件对铝芯-地板-保温层系统进行仿真,得出系统温度分布云。[结果]由铝芯温度分布云可知,铝芯宽度方向温度传热速度不同,长度方向温度呈中间高、两端低的趋势;总体温度大于30℃的比例较大,且温度分布在40℃左右的区间也较大,铝芯的传热效果较好。通过Origin 9.0软件对提取的数据进行曲线拟合,得到铝芯板材2 m处宽度方向温度分布二次曲线,其相关系数R2=0.989 5,值接近1,曲线拟合效果较好。从地板截面温度分布云可知,地板传热速度较慢,与自身导热系数有关。经过ANSYS软件模拟仿真求解,得到太阳能储能地板供暖系统的温度分布情况,地板面温度分布基本呈两端高、中间低的趋势,最后稳定在24℃左右。试验分析表明,随着时间增加,地板面温度不断升高,升温50 min时,地板面最低温度为20.5℃,拟合度为85.42%,模型准确度较好。[结论]本研究所设计的太阳能储能地板,经模型建立、温度分布仿真及试验验证,理论模型与实际情况的拟合度较高,可为太阳能储能地板设计和研究提供一定思路,有利于新时期太阳能储能地板的发展利用。

关键词: 储能地板, 太阳能, 结构设计, 传热模型, 仿真分析

Abstract: [Objective] A new solar energy-storage flooring heating system was presented and some reference and theoretical basis for the design and research of the new type domestic heating floor system were provided in this study.[Method] Firstly, the overall structure and composition of the solar energy-storage flooring were introduced. Based on three-dimensional software, the three-dimensional entity of the solar energy-storage flooring system was drawn. Then, based on the overall structure of the solar energy-storage flooring, the working principle and heat transfer process of the solar energy-storage flooring were analyzed. And the working process of the indoor flooring heating system was analyzed. Finally, based on the heat transfer principle and working process of the green energy-storage flooring, the heat transfer mathematical model was established for the aluminum core-floor-insulation layer system in the green energy-storage flooring system according to the heat balance relationship. The discrete mathematical relationship model was established by each control unit, and the mathematical model was simulated by using MATLAB software programming, to obtain temperature distribution at cloud diagram of aluminum core and floor, while the aluminum core-floor-insulation layer system was simulated in combination with ANSYS software to obtain the temperature distribution cloud diagram of the system.[Result] The aluminum core temperature cloud map and the floor temperature cloud map were obtained by MATLAB software, according to the aluminum core temperature distribution cloud diagram, it can be seen that the temperature transferring rate of the aluminum core in the width direction is different, and the temperature in the length direction shows the trend of high temperature at mid and low temperature at both ends. It can be seen from the figure that large proportion of the overall temperature is higher than 30℃, and temperature distribution about 40℃ is also large, which shows that the aluminum core has a good heat transfer effect. The curve of the extracted data was fitted by Origin 9.0 software and the temperature distribution quadratic curve of the aluminum core plate at 2 m was obtained. The correlation coefficient(R2) was 0.989 5, which showed that the curve fitting effect was fine. From the temperature distribution cloud map of the flooring, it is indicated see that the heat transfer rate of the flooring is slow, which is related to its own thermal conductivity. After the simulation and solution of ANSYS, the temperature distribution of the solar heating flooring system was obtained. The temperature distribution on the surface of the floor basically shows the trend of higher temperature distribution at both ends and lower temperature in the middle, and finally the temperature is stable at about 24℃. Furthermore, the experimental analysis shows that with the increase of time, the temperature of the floor surface is continuously increasing. When the temperature elevate for 50 min, the lowest temperature of the floor surface is 20.5℃, and the fitting degree is 85.42%. This shows that the model accuracy is good.[Conclusion] The energy-storage flooring has a high degree of fitting between the theoretical model and the actual situation through model establishment, temperature distribution simulation and experimental verification. Thus, this study provides certain ideas for the design and research of solar energy-storage flooring and is conducive to the development and utilization of solar energy-storage flooring in the new era.

Key words: energy-storage flooring, solar energy, structural design, heat transfer model, simulation analysis

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