heat transmission

简明释义

传热

英英释义

例句

1.Materials with low heat transmission (热传导) properties are preferred for thermal insulation.

低热传导（热传导）特性的材料更适合用于热绝缘。

2.The efficiency of a building's insulation directly affects the rate of heat transmission (热传导) through its walls.

建筑物的绝缘效率直接影响其墙壁的热传导（热传导）速率。

3.Scientists study heat transmission (热传导) to improve thermal management in electronics.

科学家研究热传导（热传导）以改善电子设备的热管理。

4.In cooking, understanding heat transmission (热传导) helps chefs achieve the perfect sear on meat.

在烹饪中，理解热传导（热传导）帮助厨师在肉类上达到完美的煎烤效果。

5.The design of the radiator is crucial for effective heat transmission (热传导) in heating systems.

散热器的设计对供暖系统中有效的热传导（热传导）至关重要。

作文

Heat transmission, or 热传递, is a fundamental concept in physics and engineering that describes how thermal energy moves from one body or substance to another. This process occurs through three primary mechanisms: conduction, convection, and radiation. Understanding these mechanisms is crucial for various applications, including building design, manufacturing processes, and even environmental science. In this essay, I will explore the different modes of 热传递 and their significance in real-world scenarios.Firstly, conduction is the transfer of heat through direct contact between materials. When two objects at different temperatures come into contact, heat flows from the hotter object to the cooler one until thermal equilibrium is reached. This type of 热传递 is most commonly observed in solids, where particles are closely packed together. For instance, when a metal spoon is placed in a hot cup of coffee, the heat from the coffee transfers to the spoon through conduction. This principle is essential in designing heat exchangers and thermal insulators, which are widely used in various industries to manage temperature effectively.Secondly, convection is the transfer of heat through the movement of fluids, which can be either liquids or gases. In this process, warmer areas of a fluid rise while cooler areas sink, creating a circulation pattern. This mechanism of 热传递 is evident in everyday situations, such as boiling water. As the water at the bottom of the pot heats up, it becomes less dense and rises to the surface, while cooler water descends to take its place. Understanding convection is vital for engineers when designing heating and cooling systems, such as air conditioning units and radiators, to ensure efficient temperature regulation in buildings.Lastly, radiation is the transfer of heat in the form of electromagnetic waves. Unlike conduction and convection, radiation does not require a medium to transfer heat; it can occur in a vacuum. The sun's heat reaches the Earth through radiation, making it a critical aspect of 热传递 in our solar system. This principle is also applied in technologies such as infrared heaters and thermal imaging cameras. Knowledge of radiant heat transfer is essential for architects and builders to optimize energy efficiency in structures by considering factors like window placement and insulation materials.In conclusion, 热传递 is a multifaceted phenomenon that plays a significant role in our daily lives and various industries. By understanding the mechanisms of conduction, convection, and radiation, we can better design systems for energy efficiency and comfort. Whether it’s ensuring our homes are warm in winter or our vehicles remain cool in summer, mastering the principles of 热传递 enables us to harness thermal energy effectively and sustainably. As we continue to advance in technology and face challenges related to climate change, a deeper understanding of 热传递 will be crucial for developing innovative solutions that promote energy conservation and environmental protection.