selective absorber

简明释义

选择吸收体

英英释义

例句

1.The research focused on developing a new type of selective absorber for better heat retention.

这项研究专注于开发一种新型的选择性吸收器以提高热量保持能力。

2.The solar panel uses a selective absorber to maximize energy capture from sunlight.

这个太阳能电池板使用选择性吸收器来最大化从阳光中捕获的能量。

3.In thermal systems, a selective absorber can improve efficiency by absorbing specific wavelengths of light.

在热系统中，选择性吸收器可以通过吸收特定波长的光来提高效率。

4.Engineers tested various materials to find the most effective selective absorber for their project.

工程师们测试了各种材料，以找到他们项目中最有效的选择性吸收器。

5.The selective absorber in the device is designed to work at specific temperatures.

设备中的选择性吸收器被设计用于特定温度下工作。

作文

In the field of physics and engineering, the concept of a selective absorber plays a crucial role in various applications, particularly in the areas of energy conversion and thermal management. A selective absorber is a material or surface that efficiently absorbs certain wavelengths of electromagnetic radiation while reflecting or transmitting others. This characteristic makes it particularly useful in solar energy collection systems, where maximizing energy absorption from sunlight is essential for efficiency. The principle behind a selective absorber lies in its ability to interact with specific wavelengths of light. For instance, materials can be engineered to absorb infrared radiation effectively while allowing visible light to pass through. This property is vital for solar thermal collectors, which are designed to convert sunlight into heat. By using a selective absorber, these collectors can achieve higher temperatures and improved performance compared to traditional absorbers that do not discriminate between different wavelengths. One of the most common examples of a selective absorber is found in solar panels, where a coating is applied to the surface to enhance its absorption capabilities. These coatings are often made from materials such as titanium dioxide or specialized polymers that have been optimized for their absorptive properties. The design of these materials involves careful consideration of their optical characteristics, ensuring that they absorb the maximum amount of solar energy while minimizing losses through reflection. Moreover, the importance of selective absorbers extends beyond solar energy applications. In industries such as aerospace and automotive, these materials are used to manage heat and improve energy efficiency. For example, spacecraft utilize selective absorbers to protect sensitive components from excessive heat generated by solar radiation. By selectively absorbing only the harmful wavelengths, these materials help maintain optimal operating temperatures, thereby enhancing the longevity and reliability of the equipment. The development of new selective absorbers continues to be a significant area of research. Scientists and engineers are exploring nanomaterials and metamaterials to create more efficient absorbers that can work across a broader spectrum of wavelengths. This advancement could lead to breakthroughs in energy harvesting technologies, making renewable energy sources more viable and accessible. In conclusion, the concept of a selective absorber is integral to the advancement of technology in energy conversion and thermal management. Its ability to selectively absorb specific wavelengths of radiation while minimizing losses has made it a vital component in solar energy systems and various industrial applications. As research progresses and new materials are developed, the potential for selective absorbers to contribute to energy efficiency and sustainability will only continue to grow. Understanding and harnessing the power of selective absorbers will undoubtedly play a pivotal role in shaping the future of energy technology and environmental conservation.

在物理和工程领域，选择性吸收体的概念在各种应用中发挥着至关重要的作用，特别是在能量转换和热管理领域。选择性吸收体是一种能够有效吸收特定波长的电磁辐射，同时反射或透过其他波长的材料或表面。这一特性使其在太阳能收集系统中尤为有用，因为最大化对阳光的能量吸收对提高效率至关重要。选择性吸收体背后的原理在于其与特定波长光的相互作用。例如，可以设计材料有效吸收红外辐射，同时允许可见光通过。这一特性对于太阳热收集器至关重要，这些收集器旨在将阳光转化为热能。通过使用选择性吸收体，这些收集器可以比传统的未区分不同波长的吸收器实现更高的温度和更好的性能。一个常见的选择性吸收体实例出现在太阳能电池板中，其中在表面涂覆了一层以增强其吸收能力的涂层。这些涂层通常由二氧化钛或经过优化的专用聚合物制成，具有优良的吸收特性。这些材料的设计涉及对其光学特性的仔细考虑，以确保它们最大限度地吸收太阳能，同时减少通过反射造成的损失。此外，选择性吸收体的重要性超越了太阳能应用。在航空航天和汽车等行业，这些材料用于管理热量并提高能效。例如，航天器利用选择性吸收体来保护敏感组件免受太阳辐射产生的过多热量的影响。通过选择性吸收有害波长，这些材料帮助保持最佳操作温度，从而增强设备的使用寿命和可靠性。新型选择性吸收体的开发仍然是一个重要的研究领域。科学家和工程师正在探索纳米材料和超材料，以创造更高效的吸收体，能够在更广泛的波长范围内工作。这一进展可能导致能源收集技术的突破，使可再生能源更加可行和可获取。总之，选择性吸收体的概念对于能源转换和热管理技术的进步至关重要。其选择性吸收特定波长辐射的能力，同时最小化损失，使其成为太阳能系统和各种工业应用中的重要组成部分。随着研究的进展和新材料的开发，选择性吸收体在提高能效和可持续性方面的潜力只会继续增长。理解和利用选择性吸收体的力量无疑将在塑造未来的能源技术和环境保护方面发挥关键作用。