太阳能蒸汽发电机阵列的模拟导向设计,以在自然阳光下进行高效的全冷蒸发
Ke Shao1, Jingjing Li1, Jun Zhao1
1College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China.
ACS applied materials & interfaces
|April 18, 2025
概括
研究人员开发了先进的3D太阳能蒸汽发电机 (SG) 和用于高效生产水的阵列. 优化的阵列配置实现了高太阳能蒸发率,证明了清洁水解决方案的可持续途径.
科学领域:
- 可持续的能源和水技术.
- 材料科学用于太阳能能源转换.
- 蒸发系统的热力学和流体动力学.
背景情况:
- 太阳能驱动的界面蒸发提供了一条可持续的途径,以低碳足迹清洁水.
- 目前的研究重点是提高太阳能蒸发率和3D蒸汽发电机 (SG) 的应用.
- 扩展需要将单个SG集成到系统级数组中,使数组配置对性能至关重要.
研究的目的:
- 开发和优化3D SG及其集成阵列,以实现高效的太阳能驱动水生产.
- 通过模拟和实验,研究 SG 结构和阵列配置对蒸发速率的影响.
- 为了提高性能,在SG阵列中探索复杂的能量-水-溶液相互作用.
主要方法:
- 3D SG和集成的 SG 阵列的开发.
- 在SG和数组中对温度,湿度,空气流和粒子分布进行数值模拟.
- 对优化 SG 结构和阵列安排的模拟结果进行实验验证.
主要成果:
- 8-Fin SG设计实现了高蒸发率 (>2.3 kg m−2 h−1 在 1 太阳下,4.8 kg m−2 h−1 在空气流下).
- 一个由9个8-Fin SG (12厘米间距) 组成的圆形阵列显示了持续的"全冷蒸发".
- 优化的SG阵列在自然阳光下达到5.9kg m-2h-1的异常蒸发率.
结论:
- 优化的SG结构和阵列配置显著提高了太阳能蒸发效率.
- 结合模拟和实验的综合方法为推进SG阵列设计提供了强大的工具.
- 这项工作为太阳能蒸汽发电用于清洁水生产的实际,系统级应用铺平了道路.
相关概念视频
Mechanisms of Heat Transfer II
3.1K
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...
3.1K
Mechanisms of Heat Transfer I
4.1K
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.
4.1K
Mechanisms of Heat Transfer
113
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
113
Maxwell-Boltzmann Distribution: Problem Solving
1.3K
Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
1.3K
Mechanism of heat transfer
1.1K
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...
1.1K
Conduction, Convection and Radiation: Problem Solving
1.1K
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...
1.1K


