相关实验视频
Updated: Jul 25, 2025
14:57
Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
Published on: January 30, 2019
13.9K
来自材料和结构的太阳能蒸汽设备的概述
Chang Liu1, Zhenhao Yin2, Yue Hou1
1National Demonstration Centre for Experimental Chemistry Education, Department of Chemistry, Yanbian University, Yanji 133002, China.
Polymers
|June 28, 2023
概括
太阳能蒸汽技术通过使用太阳能进行光热转换,为淡水短缺提供了可持续的,低成本的解决方案. 本次审查强调了太阳能蒸汽发电机在高效淡水生产方面的进展.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 可再生能源可再生能源是可再生能源.
背景情况:
- 全球淡水短缺是一个关键问题.
- 传统的海水淡化是能源密集型和不可持续的.
- 太阳能蒸汽技术提供了一个低碳的替代方案.
研究的目的:
- 审查最近在太阳能蒸汽发电机方面的进展.
- 解释太阳能蒸汽技术的原理和机制.
- 确定优化蒸汽发电效率的策略.
主要方法:
- 总结了太阳能蒸汽发电机的最新发展.
- 描述工作原理和加热系统.
- 描绘各种材料的光热转换机制.
主要成果:
- 太阳能蒸汽技术利用太阳能进行可持续的水生产.
- 优化的光吸收和结构设计提高了蒸汽效率.
- 不同的材料具有不同的光热转换效率.
结论:
- 太阳能蒸汽发电是一种有希望的,环保的方法来解决水资源短缺问题.
- 对材料特性和设备设计的进一步研究至关重要.
- 开发高效的太阳能蒸汽设备可以缓解淡水资源挑战.
相关概念视频
01:14Mechanisms of Heat Transfer I
4.4K
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.
4.4K
01:20Mechanisms of Heat Transfer II
3.3K
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...
3.3K
01:14Mechanisms of Heat Transfer
379
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...
379
01:19Mechanism of heat transfer
1.2K
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...
1.2K
01:29Methods of Sterilization I: Physical Methods
20.3K
As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation.
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
20.3K
01:16Thermal Sigmatropic Reactions: Overview
2.1K
Sigmatropic rearrangements are a class of pericyclic reactions in which a σ bond migrates from one part of a π system to another. These are intramolecular rearrangements where the total number of σ and π bonds remain unchanged.
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in...
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in...
2.1K