heat flux

简明释义

1. 热流量; 2. 热通量; 3. 热流;

英英释义

例句

1.In thermodynamics, heat flux is crucial for understanding heat transfer processes.

在热力学中，热通量对理解热传递过程至关重要。

2.Engineers need to calculate the heat flux when designing heat exchangers.

工程师在设计热交换器时需要计算热通量。

3.The heat flux from the sun can significantly affect the temperature of a solar panel.

太阳的热通量会显著影响太阳能电池板的温度。

4.The researchers monitored the heat flux during the experiment to gather data.

研究人员在实验中监测热通量以收集数据。

5.The heat flux in the building's insulation was measured to ensure energy efficiency.

建筑物绝缘材料中的热通量被测量以确保能源效率。

作文

Heat transfer is a fundamental concept in physics and engineering, and one of the key parameters used to quantify this phenomenon is heat flux. 热流密度 refers to the rate of heat energy transfer per unit area, typically expressed in watts per square meter (W/m²). Understanding heat flux is crucial for various applications, including thermal insulation, HVAC systems, and even in the design of electronic devices where overheating can lead to failure.To better understand heat flux, we can consider a simple example: imagine a metal rod that is heated at one end. The heat travels through the rod from the hot end to the cooler end due to thermal conduction. The rate at which heat is transferred through the rod per unit area is what we define as heat flux. If we increase the temperature difference between the ends of the rod, the heat flux will also increase, demonstrating the relationship between temperature gradient and heat transfer.In practical applications, engineers often need to calculate heat flux to ensure that materials can withstand the heat they are subjected to. For instance, in building construction, understanding heat flux helps in selecting appropriate insulation materials that minimize energy loss. A material with a low thermal conductivity will exhibit a lower heat flux, making it ideal for maintaining comfortable indoor temperatures while reducing heating and cooling costs.Moreover, in the context of electronics, managing heat flux is vital for the reliability and performance of devices. As electronic components generate heat during operation, excessive heat flux can lead to overheating, which may damage sensitive components. Engineers employ various cooling techniques such as heat sinks, fans, and liquid cooling systems to manage heat flux effectively, ensuring that devices operate within safe temperature limits.The concept of heat flux is also essential in environmental science, particularly when studying heat exchange between the Earth's surface and the atmosphere. The heat flux from the ground affects weather patterns and climate change. For example, urban areas tend to have higher heat flux due to human activities and infrastructure, contributing to the urban heat island effect, which can significantly impact local climates.In conclusion, heat flux plays a critical role in various fields, from engineering to environmental science. Its understanding allows for the optimization of materials and systems to enhance performance while minimizing energy consumption and environmental impact. As technology continues to evolve, the significance of effectively managing heat flux will only increase, making it an important area of study for future innovations.

热传递是物理学和工程学中的一个基本概念，而用于量化这一现象的关键参数之一就是热流密度。热流密度指的是单位面积上热能转移的速率，通常以每平方米瓦特（W/m²）表示。理解热流密度对于各种应用至关重要，包括热绝缘、暖通空调系统，甚至在电子设备的设计中，过热可能导致故障。为了更好地理解热流密度，我们可以考虑一个简单的例子：想象一根金属棒在一端加热。热量通过导热从热端传递到冷端。通过棒的单位面积上转移的热量速率就是我们所定义的热流密度。如果我们增加棒两端的温差，热流密度也会增加，这表明温度梯度与热传递之间的关系。在实际应用中，工程师常常需要计算热流密度以确保材料能够承受其所承受的热量。例如，在建筑施工中，理解热流密度有助于选择适当的绝缘材料，以最小化能量损失。具有低热导率的材料会表现出较低的热流密度，使其成为维持舒适室内温度的理想选择，同时降低供暖和制冷成本。此外，在电子设备的上下文中，管理热流密度对设备的可靠性和性能至关重要。由于电子元件在运行过程中会产生热量，过高的热流密度可能导致过热，从而损坏敏感元件。工程师采用各种冷却技术，如散热器、风扇和液体冷却系统，以有效管理热流密度，确保设备在安全温度范围内运行。热流密度的概念在环境科学中也至关重要，特别是在研究地球表面与大气之间的热交换时。地面向大气的热流密度影响着天气模式和气候变化。例如，由于人类活动和基础设施，城市地区往往具有更高的热流密度，这会导致城市热岛效应，对当地气候产生显著影响。总之，热流密度在各个领域中发挥着关键作用，从工程到环境科学。它的理解使得优化材料和系统成为可能，从而提高性能，同时最小化能耗和环境影响。随着技术的不断发展，有效管理热流密度的重要性只会增加，使其成为未来创新的重要研究领域。