带有辐射反射器和W形粗度的平板太阳能空气加热系统的热分析:人工神经网络和机器学习方法
Piyush Kumar Jain1, Kawal Lal Kurrey2, Vikas Pandey3
1Department of Mechanical Engineering, Bansal Institute of Science & Technology, Bhopal, India.
Scientific reports
|March 2, 2026
概括
这项研究提高了平板太阳能空气加热器 (FPSAH) 的效率,使用辐射反射器和W形粗度. 双模式增强显著提高了工业应用的热性能和对流传热传输.
科学领域:
- 可再生能源工程可再生能源工程
- 热科学 热科学 热科学
- 热传递是一种热传递.
背景情况:
- 太阳能热系统,特别是平板太阳能空气加热器 (FPSAH),在热效率和对流传热传输方面面临限制,这阻碍了它们的工业应用.
- 当前的能源需求需要提高太阳能技术的性能.
研究的目的:
- 为了提高FPSAH系统的热性能.
- 研究一种新的双模式增强技术,集成辐射反射器和人工粗度.
主要方法:
- 开发了一种双模式增强技术,结合辐射反射器和FPSAH的吸收板上的W形肋骨粗度图案.
- 实验测试使用各种反射器和粗度的组合进行.
- 使用努塞尔特数 (Nu) 和热效率来评估性能.
- 人工神经网络 (ANN) 和机器学习 (ML) 算法用于性能预测.
主要成果:
- 综合式双模式技术实现的最大努塞尔特数 (Nu) 是普通配置的1.63倍.
- W 形的粗和辐射反射器有效地破坏了边界层,增加了对流热传递.
- 强大的回归和随机森林回归算法在预测雷诺兹数方面表现出高准确度.
结论:
- 这种新的双模式增强技术显著提高了FPSAH系统的热效率和传热能力.
- 这种增强使得FPSAH更适合满足工业能源需求.
- 机器学习模型为优化系统设计提供可靠的性能预测.
更多相关视频
07:03In Situ Surface Temperature Measurement in a Conveyor Belt Furnace via Inline Infrared Thermography
Published on: May 30, 2020
06:21Thermal Behavior and Power Efficiency Comparison of AC vs. DC Electrical Heating in a Distillation Column Using Infrared Thermography Analysis
Published on: December 5, 2025
相关概念视频
Heating and Cooling Curves
When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
Mechanism of heat transfer
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
Mechanisms of Heat Transfer I
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
Mechanisms of Heat Transfer II
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
Absorption of Radiation
The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:
Conduction, Convection and Radiation: Problem Solving
There are three methods by which heat transfer can take place: conduction, convection, and radiation. Each method has unique and interesting characteristics, but all three have two things in common: they transfer heat solely because of a temperature difference; and the greater the temperature difference, the faster the heat transfer.
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
