dissipation of energy

简明释义

能消散

英英释义

例句

1.In thermodynamics, the dissipation of energy is a key concept that explains why machines are not 100% efficient.

在热力学中，能量耗散是一个关键概念，它解释了为什么机器不能达到100%的效率。

2.The dissipation of energy in a fluid can affect its temperature and pressure.

流体中的能量耗散会影响其温度和压力。

3.The dissipation of energy during a car's braking process generates heat.

汽车刹车过程中，能量耗散会产生热量。

4.The dissipation of energy in electrical circuits can lead to overheating.

电路中的能量耗散可能导致过热。

5.Engineers must consider the dissipation of energy when designing more efficient systems.

工程师在设计更高效的系统时必须考虑能量耗散。

作文

The concept of dissipation of energy refers to the process by which energy is transformed from a concentrated form into a more dispersed state, often resulting in a loss of usable energy. This phenomenon is prevalent in various systems, including mechanical, thermal, and even biological contexts. Understanding the dissipation of energy is crucial for engineers, scientists, and environmentalists alike, as it has significant implications for efficiency and sustainability.In mechanical systems, dissipation of energy often occurs due to friction. For instance, when two surfaces rub against each other, kinetic energy is converted into thermal energy, causing an increase in temperature. This heat is often lost to the surrounding environment, making it unavailable for doing useful work. Engineers strive to minimize this energy loss by designing systems with smoother surfaces or using lubricants that reduce friction.In thermal systems, dissipation of energy can be observed in processes such as heat transfer. When a hot object is placed in contact with a cooler one, thermal energy flows from the hot object to the cooler one until thermal equilibrium is reached. During this process, some energy is dissipated into the surroundings, which can lead to inefficiencies in heating systems or engines. For example, in a car engine, the combustion of fuel generates a significant amount of heat, but only a fraction of that energy is converted into mechanical work. The rest is lost through exhaust gases and cooling systems, illustrating the importance of addressing dissipation of energy in design and operation.Biological systems also experience dissipation of energy. In living organisms, energy is constantly transformed through metabolic processes. For instance, when we consume food, our bodies convert the chemical energy stored in nutrients into ATP (adenosine triphosphate), which powers cellular activities. However, not all the energy from food is efficiently used; some is inevitably lost as heat during metabolic reactions. This loss is a natural part of biological processes and highlights the challenges organisms face in maximizing energy efficiency.The implications of understanding dissipation of energy extend beyond individual systems to broader environmental concerns. As societies strive for sustainability, recognizing how energy is lost in various processes can inform better practices and technologies. For instance, improving the energy efficiency of buildings through better insulation and energy-efficient appliances can significantly reduce the dissipation of energy and lower carbon footprints. Similarly, advancements in renewable energy technologies aim to harness energy more effectively and minimize losses associated with traditional energy sources.In conclusion, the dissipation of energy is a fundamental concept that permeates various fields and has far-reaching consequences. By understanding how energy is lost in different systems, we can develop strategies to enhance efficiency, reduce waste, and promote sustainability. Whether in engineering, biology, or environmental science, addressing the challenges posed by dissipation of energy is essential for creating a more sustainable future. As we continue to innovate and improve our technologies, keeping the principles of energy dissipation in mind will be key to achieving our goals of efficiency and environmental stewardship.

“能量耗散”这一概念指的是能量从集中状态转化为更分散状态的过程，通常会导致可用能量的损失。这一现象在机械、热和生物等各种系统中普遍存在。理解“能量耗散”对工程师、科学家和环保人士来说至关重要，因为它对效率和可持续性具有重要影响。在机械系统中，“能量耗散”通常由于摩擦而发生。例如，当两个表面相互摩擦时，动能转化为热能，导致温度升高。这部分热量通常会散失到周围环境中，使其无法用于做有用的工作。工程师们努力通过设计更光滑的表面或使用减少摩擦的润滑剂来尽量减少这种能量损失。在热系统中，“能量耗散”可以在热传递过程中观察到。当一个热物体与一个冷物体接触时，热能从热物体流向冷物体，直到达到热平衡。在这个过程中，一些能量被散失到周围环境中，这可能导致加热系统或发动机的低效。例如，在汽车发动机中，燃料的燃烧产生大量热量，但只有一小部分能量转化为机械功。其余的通过废气和冷却系统损失掉，说明了在设计和操作中解决“能量耗散”的重要性。生物系统同样经历“能量耗散”。在生物体内，能量通过代谢过程不断转化。例如，当我们摄入食物时，身体将储存在营养物质中的化学能转化为ATP（三磷酸腺苷），为细胞活动提供动力。然而，并不是所有来自食物的能量都被有效利用；在代谢反应中，一些能量不可避免地以热量的形式损失。这种损失是生物过程的自然部分，突显了生物体在最大化能量效率方面所面临的挑战。理解“能量耗散”的意义超越了个别系统，涉及更广泛的环境问题。随着社会努力实现可持续发展，认识到能量在各种过程中如何流失可以为更好的实践和技术提供指导。例如，通过改善建筑的能效，采用更好的绝缘材料和能效设备，可以显著减少“能量耗散”，降低碳足迹。同样，新能源技术的进步旨在更有效地利用能源，最小化与传统能源源相关的损失。总之，“能量耗散”是一个基本概念，渗透到各个领域并具有深远的影响。通过理解不同系统中能量是如何损失的，我们可以制定策略来提高效率、减少浪费并促进可持续性。无论是在工程、生物学还是环境科学中，解决“能量耗散”带来的挑战对于创造一个更可持续的未来至关重要。随着我们继续创新和改善技术，牢记能量耗散的原则将是实现效率和环境保护目标的关键。