在中国太阳能温室中对热辐射模型进行比较研究
Wenhe Liu1, Manhe Qu1, Feng Zhang1
1University of Shenyang Agricultural, Shenyang city, Liaoning Province, China.
PloS one
|September 13, 2024
概括
这项研究评估了P-1,表面对表面 (S2S) 和离散坐标 (DO) 辐射模型,用于模拟中国太阳能温室温度. 所有模型都与实验数据有很好的一致性,有助于优化作物生长环境.
科学领域:
- 农业工程 农业工程
- 环境科学 环境科学
- 热科学 热科学 热科学
背景情况:
- 准确模拟温室微气候对于优化作物生产至关重要.
- 热辐射显著影响太阳能温室内的温度分布.
- 选择适当的辐射模型对于可靠的温室气候模拟至关重要.
研究的目的:
- 评估和比较三种常见的热辐射模型 (P-1,S2S,DO) 的性能,以模拟中国太阳能温室的温度.
- 验证对关键温室位置的实验数据进行数值模拟.
- 为选择适合温室气候控制的辐射模型提供指导.
主要方法:
- 使用P-1,S2S和DO热辐射模型进行温度分布的数值模拟.
- 将模拟结果与在代表性点 (室内后墙,土壤,空气) 收集的实验温度数据进行比较.
- 基于实验验证的模型准确性的定量评估.
主要成果:
- 所有三种评估模型 (P-1,S2S,DO) 在模拟和实验温度数据之间都显示出良好的一致性.
- 具体模型显示了与温室内不同位置的实验结果有很强的相关性.
- 该研究验证了这些模型在温室气候模拟中的适用性.
结论:
- P-1,S2S和DO模型适用于模拟中国太阳能温室的温度.
- 模型选择可以根据温室内的特定位置要求进行定制,以获得最佳准确性.
- 研究结果支持在设计和管理温室环境时做出明智的决策,以促进作物生长.
相关概念视频
Radiation: Applications
1.1K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
The average...
1.1K
Mechanisms of Heat Transfer I
4.2K
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.
4.2K
Absorption of Radiation
712
The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:
712
Responses to Heat and Cold Stress
13.4K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.4K
Mechanisms of Heat Transfer II
3.2K
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...
3.2K
Conduction, Convection and Radiation: Problem Solving
1.2K
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...
1.2K


