coefficient of heat transmission

简明释义

传热系数

英英释义

例句

1.Understanding the coefficient of heat transmission 热传导系数 is crucial for designing effective insulation systems.

理解热传导系数 coefficient of heat transmission对于设计有效的绝缘系统至关重要。

2.The coefficient of heat transmission 热传导系数 can be measured using specialized equipment in a laboratory setting.

在实验室环境中，可以使用专用设备测量热传导系数 coefficient of heat transmission。

3.The engineer calculated the coefficient of heat transmission 热传导系数 for the building materials to ensure energy efficiency.

工程师计算了建筑材料的热传导系数 coefficient of heat transmission以确保能效。

4.The coefficient of heat transmission 热传导系数 varies with different materials, affecting overall thermal performance.

不同材料的热传导系数 coefficient of heat transmission不同，影响整体热性能。

5.To improve energy conservation, we need to lower the coefficient of heat transmission 热传导系数 in our home.

为了提高能量节约，我们需要降低家中的热传导系数 coefficient of heat transmission。

作文

The concept of the coefficient of heat transmission is fundamental in the field of thermodynamics and energy efficiency. This coefficient quantifies the rate at which heat is transferred through a material, providing essential insights into how buildings and structures can be designed for optimal thermal performance. Understanding this concept is crucial for architects, engineers, and builders who aim to create energy-efficient spaces that minimize heat loss in winter and heat gain in summer.To begin with, the coefficient of heat transmission (often denoted as U-value) is defined as the amount of heat that passes through a unit area of a material per unit of temperature difference between the inside and outside environments. It is measured in watts per square meter Kelvin (W/m²K). A lower U-value indicates better insulating properties, meaning less heat is lost or gained through the material. Therefore, materials with low coefficient of heat transmission values are preferred in construction, especially in climates that experience extreme temperatures.For instance, when building a house, selecting windows with a low coefficient of heat transmission can significantly reduce heating and cooling costs. Double-glazed windows, which consist of two panes of glass with a layer of gas in between, typically have lower U-values than single-pane windows. This means they are more effective at keeping heat inside during the winter and blocking it out during the summer, contributing to a more comfortable living environment.Moreover, the coefficient of heat transmission is not only relevant for windows but also for walls, roofs, and floors. Insulation materials such as fiberglass, foam board, and cellulose are designed to have low U-values. By incorporating these materials into a building's design, architects can create structures that maintain a stable indoor temperature, thereby reducing reliance on heating and cooling systems.In addition to individual materials, the overall thermal performance of a building is influenced by its design and orientation. For example, a well-insulated home that faces south may take advantage of passive solar heating in the winter, further enhancing its energy efficiency. In contrast, homes that do not consider the coefficient of heat transmission in their design may suffer from significant heat loss, leading to higher energy bills and a larger carbon footprint.Furthermore, understanding the coefficient of heat transmission is vital for compliance with building codes and regulations that aim to promote energy efficiency and sustainability. Many countries have established standards that dictate maximum allowable U-values for various building components. By adhering to these regulations, builders not only ensure the comfort of occupants but also contribute to broader environmental goals.In conclusion, the coefficient of heat transmission plays a critical role in the design and construction of energy-efficient buildings. By selecting materials with low U-values and considering the overall thermal performance of a structure, architects and builders can create comfortable living spaces that reduce energy consumption and environmental impact. As awareness of climate change and energy conservation grows, the importance of understanding and applying the principles related to the coefficient of heat transmission will only continue to increase in the construction industry.

热传导系数的概念在热力学和能效领域中是基础性的。该系数量化了热量通过材料转移的速率，提供了关于如何设计建筑和结构以实现最佳热性能的重要见解。理解这一概念对于旨在创造节能空间的建筑师、工程师和建筑商至关重要，这些空间能够在冬季最小化热量损失，在夏季减少热量增益。首先，热传导系数（通常表示为U值）被定义为单位面积的材料在室内外环境之间的温差下传递的热量。它的单位是瓦特每平方米开尔文（W/m²K）。较低的U值表示更好的绝缘性能，这意味着通过材料的热量损失或增益更少。因此，在建筑中，具有低热传导系数值的材料受到青睐，特别是在经历极端气温的气候中。例如，在建造房屋时，选择具有低热传导系数的窗户可以显著减少供暖和制冷成本。双层玻璃窗由两块玻璃和中间一层气体组成，通常比单层玻璃窗具有更低的U值。这意味着它们在冬季更有效地保持热量，在夏季阻挡热量，从而有助于创造更舒适的居住环境。此外，热传导系数不仅与窗户相关，还与墙壁、屋顶和地板有关。玻璃纤维、泡沫板和纤维素等绝缘材料旨在具有低U值。通过将这些材料融入建筑设计中，建筑师可以创建保持稳定室内温度的结构，从而减少对供暖和制冷系统的依赖。除了单个材料外，建筑的整体热性能还受到其设计和朝向的影响。例如，一座良好绝缘的房屋如果朝南，可以在冬季利用被动太阳能供暖，从而进一步增强其能效。相比之下，那些未考虑热传导系数的设计的房屋可能会遭受显著的热量损失，导致更高的能源账单和更大的碳足迹。此外，理解热传导系数对于遵守促进能效和可持续性的建筑规范和法规至关重要。许多国家已经建立了标准，规定各种建筑构件的最大允许U值。通过遵守这些法规，建筑商不仅确保了居住者的舒适性，还为更广泛的环保目标做出了贡献。总之，热传导系数在节能建筑的设计和施工中发挥着关键作用。通过选择低U值的材料并考虑结构的整体热性能，建筑师和建筑商可以创造出减少能耗和环境影响的舒适居住空间。随着对气候变化和节能意识的提高，理解和应用与热传导系数相关的原则在建筑行业中的重要性只会继续增加。