coefficient of overall heat transmission

简明释义

传热系数

英英释义

例句

1.The building's energy efficiency can be improved by reducing the coefficient of overall heat transmission (整体热传递系数) through better insulation.

通过更好的绝缘材料，可以降低建筑物的整体热传递系数（coefficient of overall heat transmission），从而提高其能效。

2.A lower coefficient of overall heat transmission (整体热传递系数) indicates better insulating properties of the material used.

较低的整体热传递系数（coefficient of overall heat transmission）表示所用材料具有更好的绝缘性能。

3.When designing HVAC systems, engineers must consider the coefficient of overall heat transmission (整体热传递系数) of all building materials.

在设计暖通空调系统时，工程师必须考虑所有建筑材料的整体热传递系数（coefficient of overall heat transmission）。

4.The coefficient of overall heat transmission (整体热传递系数) is crucial for calculating heating and cooling loads in buildings.

在建筑中，整体热传递系数（coefficient of overall heat transmission）对计算供暖和制冷负荷至关重要。

5.To meet energy standards, the coefficient of overall heat transmission (整体热传递系数) for windows must be below a certain threshold.

为了满足能源标准，窗户的整体热传递系数（coefficient of overall heat transmission）必须低于某个阈值。

作文

Understanding the concept of the coefficient of overall heat transmission is crucial in the fields of thermodynamics and building engineering. This term refers to a measure that quantifies how much heat is transferred through a building's envelope, which includes walls, roofs, and windows. The coefficient of overall heat transmission is typically denoted by the symbol 'U' and is expressed in watts per square meter Kelvin (W/m²K). A lower value of this coefficient indicates better insulating properties, meaning that the building retains heat more effectively during cold weather and keeps it out during warm weather.In practical applications, the coefficient of overall heat transmission plays a vital role in energy efficiency assessments. For instance, when designing an energy-efficient home, architects and engineers must consider the U-values of various materials used in construction. High-performance windows, for example, have a low coefficient of overall heat transmission, which helps minimize heat loss in winter and heat gain in summer. This not only contributes to the comfort of the occupants but also reduces energy consumption and lowers utility bills.Moreover, understanding the coefficient of overall heat transmission can aid in compliance with building regulations and standards. Many countries have specific requirements regarding the thermal performance of buildings to promote sustainability and reduce carbon footprints. By ensuring that the materials used meet the necessary U-value thresholds, builders can contribute to a greener future.The calculation of the coefficient of overall heat transmission involves several factors, including the thermal resistance of each layer of the building envelope. Each material has its own thermal conductivity, and the overall heat transfer is determined by the combination of these materials. For instance, a wall that consists of multiple layers, such as drywall, insulation, and exterior siding, must be analyzed to determine its total U-value. This analysis is essential for ensuring that the building meets energy efficiency standards.In addition to residential buildings, the coefficient of overall heat transmission is equally important in commercial and industrial constructions. In large facilities, even small improvements in thermal performance can lead to significant energy savings. Therefore, understanding and optimizing the U-values of different building components can greatly impact operational costs and environmental sustainability.Furthermore, advancements in technology have led to the development of innovative materials that provide excellent thermal insulation. These materials often have much lower coefficient of overall heat transmission values compared to traditional options. As a result, they are increasingly being used in modern construction projects to enhance energy efficiency and comfort.In conclusion, the coefficient of overall heat transmission is a fundamental concept in thermodynamics that influences building design and energy efficiency. By grasping this concept, architects, engineers, and builders can create structures that not only provide comfort to their occupants but also contribute to a sustainable future. As the world continues to prioritize energy efficiency and environmental responsibility, the importance of understanding the coefficient of overall heat transmission will only grow.

理解整体热传导系数的概念在热力学和建筑工程领域至关重要。这个术语指的是一个量度，它量化了通过建筑围护结构（包括墙壁、屋顶和窗户）传递的热量。整体热传导系数通常用符号'U'表示，单位为瓦特每平方米开尔文（W/m²K）。该系数值越低，表示绝缘性能越好，这意味着建筑在寒冷天气中更有效地保持热量，在温暖天气中则能更好地阻挡热量。在实际应用中，整体热传导系数在能源效率评估中发挥着重要作用。例如，在设计节能住宅时，建筑师和工程师必须考虑所用各种材料的U值。例如，高性能窗户具有较低的整体热传导系数，有助于在冬季减少热量损失，在夏季减少热量增益。这不仅有助于提高居住者的舒适度，还降低了能源消耗和公用事业费用。此外，理解整体热传导系数可以帮助遵守建筑法规和标准。许多国家对建筑的热性能有特定要求，以促进可持续发展并减少碳足迹。通过确保所用材料符合必要的U值标准，建筑商可以为更环保的未来做出贡献。计算整体热传导系数涉及多个因素，包括建筑围护结构各层的热阻。每种材料都有其自身的热导率，而整体热传递由这些材料的组合决定。例如，由干墙、绝缘材料和外部护面组成的墙体，必须进行分析以确定其总U值。这种分析对于确保建筑符合能源效率标准至关重要。除了住宅建筑外，整体热传导系数在商业和工业建筑中同样重要。在大型设施中，即使是小的热性能改善也能导致显著的能源节约。因此，理解和优化不同建筑组件的U值可以大大影响运营成本和环境可持续性。此外，技术的进步导致了创新材料的发展，这些材料提供了优异的热绝缘性能。这些材料的整体热传导系数值通常远低于传统选项。因此，它们越来越多地被用于现代建筑项目中，以增强能源效率和舒适度。总之，整体热传导系数是热力学中的一个基本概念，影响建筑设计和能源效率。通过掌握这一概念，建筑师、工程师和建筑商可以创建不仅为居住者提供舒适感，还能为可持续未来做出贡献的结构。随着世界继续优先考虑能源效率和环境责任，理解整体热传导系数的重要性只会与日俱增。