subcooled

简明释义

英[ˌsʌbˈkuːld]美[ˌsʌbˈkuːld]

adj. 过冷的；低温冷却的

v. 把……低温冷却；对……加热不足（subcool 的过去分词）

英英释义

单词用法

同义词

反义词

例句

1.The bobble detachment point of subcooled boiling was identified by visual method.

过冷沸腾汽泡脱离点是用目视方法确定的。

2.The results indicated that the shape of steam plume was influenced by the inlet steam pressure and subcooled water temperature.

结果表明入口蒸汽压力和过冷水温度是影响汽羽形状的主要因素。

3.Studies on visualization of the behavior, of subcooled boiling bubbles, in narrow rectangular slit shaped channels, have been conducted with the help of a high-speed digital camera.

采用高速摄像仪，对矩形窄缝流道内过冷沸腾时的汽泡行为进行了可视化实验研究。

4.Through an experimental analysis identified are certain conditions essential for the prevention of bubble adhesion and subcooled boiling.

通过试验分析提出了防止气泡贴壁和产生过冷沸腾的条件。

5.Used high-speed video camera visualization method, investigated the subcooled boiling heat transfer and bubble behaviors in narrow rectangular channel in high pressure for the first time.

首次在较高压力下，使用高速摄像手段对垂直向上矩形窄缝流道内的过冷沸腾及汽泡行为进行了可视化观察。

6.The calculation of the void fraction in subcooled boiling is different from that in saturated boiling, it is characterized thermal in equilibrium.

欠热沸腾下的空泡份额计算不同于饱和沸腾，具有热不平衡特点。

7.The formation process of calcium sulphate deposition during subcooled flow boiling heat transfer was reported. Fouling runs were carried out at different flow velocities and heat transfer surfaces.

在过冷流动沸腾条件下，对硫酸钙的沉积过程进行了研究，考查了不同流速和不同加热器表面条件下硫酸钙的结垢状况。

8.An experimental investigation was carried out to predict the Critical Heat Flux (CHF) of convective boiling of 2 subcooled liquids for a round jet impingement on the stagnation zone of a hot surface.

本文对高温平板滞止区内三种过冷液体的圆形喷流冲击沸腾的临界热流密度进行了系统的稳态实验研究。

9.The refrigerant was kept in a subcooled state to improve the efficiency of the cooling system.

制冷剂保持在亚冷却状态以提高冷却系统的效率。

10.In the heat exchanger, the water is subcooled before entering the boiler.

在热交换器中，水在进入锅炉之前被亚冷却。

11.The subcooled liquid helps to maintain optimal pressure in the system.

该亚冷却液体有助于维持系统中的最佳压力。

12.By keeping the steam subcooled, we can avoid cavitation in the pump.

通过保持蒸汽处于亚冷却状态，我们可以避免泵中的气蚀现象。

13.To prevent boiling, the liquid must be subcooled below its saturation temperature.

为了防止沸腾，液体必须低于其饱和温度处于亚冷却状态。

作文

In the field of thermodynamics, understanding the concept of subcooled fluids is essential for various applications, including refrigeration and heat exchange systems. A subcooled liquid is one that is at a temperature lower than its boiling point at a given pressure. This phenomenon occurs when a liquid is cooled below its saturation temperature without transitioning into a gas phase. The significance of subcooled liquids lies in their stability and efficiency in thermal systems.For instance, in refrigeration cycles, refrigerants are often subcooled before entering the evaporator. By ensuring that the refrigerant is in a subcooled state, the system can absorb more heat from the environment, leading to improved cooling efficiency. This process not only enhances the performance of the refrigeration unit but also reduces energy consumption, which is crucial in today's world where energy efficiency is a priority.Moreover, the understanding of subcooled conditions is vital in designing heat exchangers. In these systems, the goal is to maximize heat transfer between two fluids. When one of the fluids is subcooled, it can absorb heat more effectively from the other fluid, which may be at a higher temperature. This principle is applied in various industries, including chemical processing and HVAC (heating, ventilation, and air conditioning) systems.Another important aspect of subcooled fluids is their role in preventing cavitation. Cavitation occurs when vapor bubbles form in a liquid due to rapid changes in pressure. If a liquid is subcooled, it is less likely to reach its boiling point under varying pressure conditions, thus minimizing the risk of cavitation. This is particularly important in pump and turbine operations, where cavitation can lead to significant damage and reduced efficiency.To illustrate the practical implications of subcooled liquids, consider a scenario in a power plant where water is used as a coolant. If the water is kept in a subcooled state, it can effectively absorb heat generated by the machinery without boiling off. This ensures that the cooling system operates smoothly and maintains optimal temperatures, thereby enhancing the overall efficiency of the power generation process.In conclusion, the concept of subcooled fluids is crucial in various engineering applications. Whether in refrigeration, heat exchange, or fluid dynamics, understanding how to manipulate and utilize subcooled conditions can lead to significant improvements in efficiency and performance. As technology continues to advance, the importance of mastering concepts like subcooled fluids will only grow, making it essential knowledge for engineers and scientists alike.

在热力学领域，理解亚冷却流体的概念对各种应用至关重要，包括制冷和热交换系统。亚冷却液体是指在给定压力下其温度低于沸点的液体。当液体被冷却到低于其饱和温度而未转变为气体相时，就会发生这种现象。亚冷却液体的重要性在于其在热系统中的稳定性和效率。例如，在制冷循环中，制冷剂通常在进入蒸发器之前被亚冷却。通过确保制冷剂处于亚冷却状态，系统可以从环境中吸收更多的热量，从而提高冷却效率。这一过程不仅增强了制冷装置的性能，还减少了能耗，这在当今能源效率成为优先事项的世界中尤为重要。此外，理解亚冷却条件在设计热交换器中至关重要。在这些系统中，目标是最大化两种流体之间的热传递。当其中一种流体处于亚冷却状态时，它可以更有效地从另一种可能处于较高温度的流体中吸收热量。这一原理在化工加工和暖通空调（HVAC）系统等各个行业中得到了应用。亚冷却流体的另一个重要方面是其在防止气蚀中的作用。气蚀发生在由于压力的快速变化而在液体中形成蒸汽气泡时。如果液体处于亚冷却状态，它就不太可能在不同的压力条件下达到沸点，从而减少气蚀的风险。这在泵和涡轮操作中尤为重要，因为气蚀可能导致显著的损坏和效率降低。为了说明亚冷却液体的实际意义，考虑一个电厂的场景，其中水被用作冷却剂。如果将水保持在亚冷却状态，它可以有效地吸收机器产生的热量，而不会蒸发。这确保了冷却系统的平稳运行，并保持最佳温度，从而提高了发电过程的整体效率。总之，亚冷却流体的概念在各种工程应用中至关重要。无论是在制冷、热交换还是流体动力学中，理解如何操控和利用亚冷却条件都可以显著提高效率和性能。随着技术的不断进步，掌握像亚冷却流体这样的概念的重要性只会增加，使其成为工程师和科学家必备的知识。