thermal energy

简明释义

热能

英英释义

例句

1.The sun provides a significant amount of thermal energy 热能 that warms the Earth.

太阳提供了大量的热能 thermal energy，使地球变暖。

2.In geothermal power plants, thermal energy 热能 from the Earth's core is used to generate electricity.

在地热发电厂中，来自地球核心的热能 thermal energy被用来发电。

3.Heat exchangers are devices that transfer thermal energy 热能 from one fluid to another.

热交换器是将一种流体的热能 thermal energy转移到另一种流体的设备。

4.Insulating materials help retain thermal energy 热能 in buildings, reducing heating costs.

绝缘材料有助于保持建筑物内的热能 thermal energy，降低取暖成本。

5.When water is heated, it gains thermal energy 热能, which increases its temperature.

当水被加热时，它获得了热能 thermal energy，这会提高其温度。

作文

Thermal energy is a fundamental concept in the field of physics, often described as the internal energy present in a system due to the random motions of its particles. It plays a crucial role in various natural phenomena and technological applications. Understanding thermal energy (热能) can help us comprehend how heat transfer occurs and how it affects our daily lives.To begin with, thermal energy (热能) is directly related to temperature. The higher the temperature of an object, the greater its thermal energy (热能). This is because temperature is a measure of the average kinetic energy of the particles in a substance. When we heat a material, we increase the speed at which its particles move, leading to an increase in thermal energy (热能). For instance, when water is heated on a stove, its molecules move faster, resulting in higher thermal energy (热能) and eventually leading to boiling.Moreover, thermal energy (热能) is transferred through three primary mechanisms: conduction, convection, and radiation. Conduction occurs when heat is transferred through direct contact between materials, such as when a metal spoon becomes hot after being placed in a pot of boiling water. Convection, on the other hand, involves the movement of fluids. When water is heated, the warmer, less dense water rises while the cooler, denser water sinks, creating a convection current that distributes thermal energy (热能) throughout the liquid. Lastly, radiation is the transfer of heat through electromagnetic waves, which can occur even in a vacuum. The warmth we feel from the sun is an example of thermal energy (热能) being radiated through space.In addition to its natural occurrences, thermal energy (热能) is harnessed for various human activities. For example, in power plants, thermal energy (热能) generated from burning fossil fuels or nuclear reactions is converted into electrical energy. This process is essential for providing electricity to homes and industries. Furthermore, thermal energy (热能) is utilized in heating systems, such as radiators and heat pumps, to maintain comfortable living conditions during cold weather.Understanding the principles of thermal energy (热能) also has significant implications for energy efficiency and environmental sustainability. By improving insulation in buildings, we can minimize heat loss, thereby conserving thermal energy (热能) and reducing energy consumption. Similarly, renewable energy technologies, such as solar thermal systems, capture thermal energy (热能) from the sun to provide heating and hot water, offering a cleaner alternative to traditional energy sources.In conclusion, thermal energy (热能) is an essential aspect of both natural processes and human-made systems. Its understanding is vital for advancements in science and technology, as well as for promoting sustainable practices. As we continue to explore the intricacies of thermal energy (热能), we unlock new possibilities for efficient energy use and contribute to a more sustainable future.