terminal temperature difference

简明释义

传热端温差

英英释义

例句

1.A smaller terminal temperature difference 末端温差 can indicate a potential issue with the system performance.

较小的末端温差 terminal temperature difference可能表明系统性能存在潜在问题。

2.In this refrigeration cycle, the terminal temperature difference 末端温差 affects the overall efficiency significantly.

在这个制冷循环中，末端温差 terminal temperature difference显著影响整体效率。

3.The HVAC system was designed to maintain a terminal temperature difference 末端温差 of 20 degrees Celsius for optimal comfort.

该暖通空调系统的设计目的是保持一个末端温差 terminal temperature difference为20摄氏度，以确保最佳舒适度。

4.Engineers calculated the terminal temperature difference 末端温差 to ensure efficient heat exchange in the cooling tower.

工程师计算了末端温差 terminal temperature difference以确保冷却塔的高效热交换。

5.The design specifications require a terminal temperature difference 末端温差 of at least 15 degrees for the heat pump to operate efficiently.

设计规格要求热泵的末端温差 terminal temperature difference至少为15度，以实现高效运行。

作文

In the field of thermodynamics and heat transfer, the concept of terminal temperature difference plays a crucial role in understanding how heat exchangers operate. The terminal temperature difference refers to the difference in temperature between two fluids at the exit points of a heat exchanger. This difference is significant because it indicates how effectively the heat exchanger is transferring thermal energy from one fluid to another. When designing a heat exchanger, engineers must consider the terminal temperature difference to ensure that the system operates efficiently and meets the required thermal performance.To illustrate this concept, let's consider a simple example of a water-to-air heat exchanger used in heating systems. In this case, hot water flows through a series of pipes while air passes over these pipes. The terminal temperature difference is observed at the outlet of both the water and the air. If the hot water exits at a temperature of 60 degrees Celsius and the air exits at 20 degrees Celsius, the terminal temperature difference would be 40 degrees Celsius. This value is essential for engineers as it helps them determine the overall effectiveness of the heat exchanger and whether it can meet the heating demands of a particular space.Moreover, understanding the terminal temperature difference is vital during the operation of a heat exchanger. If the terminal temperature difference is too small, it may indicate that the heat exchanger is not functioning properly, possibly due to fouling or inadequate flow rates. In such cases, maintenance may be required to restore optimal performance. Conversely, a large terminal temperature difference could suggest that the heat exchanger is working efficiently, allowing for maximum heat transfer between the fluids.Furthermore, the terminal temperature difference is influenced by several factors, including the flow arrangement (counterflow, parallel flow, or crossflow), the properties of the fluids involved, and the design of the heat exchanger itself. For instance, counterflow heat exchangers typically achieve a smaller terminal temperature difference compared to parallel flow designs, making them more efficient in many applications. Engineers must carefully analyze these factors when designing heat exchangers to optimize their performance and reduce energy consumption.In conclusion, the terminal temperature difference is a fundamental concept in heat transfer that significantly impacts the design and operation of heat exchangers. By understanding this term, engineers can improve the efficiency of thermal systems, ultimately leading to better energy usage and reduced operational costs. As technology advances and the demand for efficient heating and cooling solutions increases, mastery of concepts like the terminal temperature difference will remain essential for professionals in the field of engineering. Therefore, further research and education on this topic are crucial for the development of innovative solutions in thermodynamics and heat transfer applications.

在热力学和热传递领域，终端温差的概念在理解热交换器的工作原理中起着至关重要的作用。终端温差是指在热交换器的出口点两个流体之间的温度差。这一差异非常重要，因为它表明热交换器从一个流体向另一个流体传递热能的有效性。在设计热交换器时，工程师必须考虑终端温差，以确保系统高效运行并满足所需的热性能。为了说明这一概念，让我们考虑一个简单的例子，即用于供暖系统的水-空气热交换器。在这种情况下，热水通过一系列管道流动，而空气则经过这些管道。终端温差是在水和空气的出口处观察到的。如果热水在60摄氏度的温度下排出，而空气在20摄氏度的温度下排出，则终端温差为40摄氏度。这个值对工程师至关重要，因为它帮助他们确定热交换器的整体有效性，以及其是否能够满足特定空间的供热需求。此外，理解终端温差在热交换器的操作过程中至关重要。如果终端温差过小，可能表明热交换器未正常运行，可能是由于结垢或流量不足。在这种情况下，可能需要进行维护以恢复最佳性能。相反，较大的终端温差可能表明热交换器工作效率高，允许流体之间最大限度的热传递。此外，终端温差受多个因素的影响，包括流动排列（逆流、平行流或交叉流）、涉及流体的性质以及热交换器本身的设计。例如，逆流热交换器通常比平行流设计实现更小的终端温差，使其在许多应用中更高效。工程师在设计热交换器时必须仔细分析这些因素，以优化其性能并减少能耗。总之，终端温差是热传递中的一个基本概念，对热交换器的设计和操作产生重大影响。通过理解这个术语，工程师可以提高热系统的效率，从而更好地利用能源并降低运营成本。随着技术的进步和对高效供暖和制冷解决方案需求的增加，掌握像终端温差这样的概念将对工程领域的专业人士至关重要。因此，进一步研究和教育这一主题对于热力学和热传递应用中创新解决方案的发展至关重要。