Rankine bottoming

简明释义

兰金基础

英英释义

例句

1.In our new design, the Rankine bottoming cycle significantly reduces fuel consumption.

在我们的新设计中，Rankine bottoming循环显著降低了燃料消耗。

2.The power plant utilizes a Rankine bottoming cycle to improve overall efficiency.

这座电厂利用Rankine bottoming循环来提高整体效率。

3.The combined cycle gas turbine uses a Rankine bottoming cycle to maximize energy output.

联合循环燃气轮机使用Rankine bottoming循环来最大化能量输出。

4.By implementing a Rankine bottoming system, we can recover waste heat from industrial processes.

通过实施Rankine bottoming系统，我们可以回收工业过程中的废热。

5.The efficiency of the system was enhanced by integrating a Rankine bottoming cycle.

通过整合Rankine bottoming循环，系统的效率得到了提升。

作文

The concept of Rankine bottoming is crucial in the field of thermodynamics and energy systems. It refers to a specific cycle used in power generation, particularly in conjunction with other systems to enhance overall efficiency. The Rankine cycle, named after the Scottish engineer William John Macquorn Rankine, operates on the principle of converting heat into work using a working fluid that undergoes phase changes from liquid to vapor and back again. In a typical Rankine cycle, the working fluid is heated in a boiler, where it turns into steam. This steam then expands through a turbine, producing mechanical work, which can be converted into electrical energy. After passing through the turbine, the steam enters a condenser, where it loses heat and transforms back into a liquid state. This liquid is then pumped back into the boiler to repeat the cycle.However, the Rankine bottoming cycle specifically refers to its application as a bottoming cycle in combined heat and power (CHP) systems or in conjunction with gas turbines. In such configurations, the primary cycle, often a gas turbine, generates electricity and exhausts hot gases. These exhausts can be utilized to heat water or generate steam for the Rankine bottoming cycle, thus improving the overall energy efficiency of the system. By capturing waste heat that would otherwise be lost, the Rankine bottoming process maximizes energy extraction from fuel sources, leading to significant reductions in fuel consumption and greenhouse gas emissions.One of the key advantages of implementing a Rankine bottoming cycle is its ability to increase the overall efficiency of the power generation process. Traditional gas turbines may only achieve efficiencies of around 30-40%, but when paired with a Rankine bottoming cycle, the combined cycle can reach efficiencies exceeding 60%. This makes it an attractive option for industries looking to reduce operational costs and environmental impact.Furthermore, the Rankine bottoming cycle can utilize various working fluids, including water, organic fluids, or even supercritical fluids, depending on the temperature and pressure conditions of the system. This flexibility allows for optimization based on specific operational requirements and resource availability. For instance, Organic Rankine Cycles (ORCs) are increasingly being used in geothermal energy applications, where lower temperature heat sources can effectively drive the cycle, providing renewable energy solutions.In conclusion, the Rankine bottoming cycle represents a significant advancement in energy recovery and efficiency improvement technologies. By integrating this cycle into existing power generation systems, industries can leverage waste heat and enhance their energy output while minimizing environmental impacts. As the world continues to seek sustainable energy solutions, understanding and implementing Rankine bottoming cycles will play a vital role in achieving these goals.

“Rankine bottoming”的概念在热力学和能源系统领域至关重要。它指的是一种特定的循环，主要用于发电，尤其是在与其他系统结合以提高整体效率时。Rankine循环以苏格兰工程师威廉·约翰·麦克夸恩·Rankine的名字命名，基于将热能转化为机械能的原理，使用一种在液体和蒸气之间发生相变的工作流体。在典型的Rankine循环中，工作流体在锅炉中被加热，转变为蒸汽。然后，这些蒸汽通过涡轮膨胀，产生机械功，可以转化为电能。在经过涡轮后，蒸汽进入冷凝器，在这里失去热量并转变回液态。然后，这种液体被泵送回锅炉，以重复循环。然而，Rankine bottoming循环特别指其作为联合热电（CHP）系统或与燃气涡轮结合使用的底部循环。在这种配置中，主要循环通常是燃气涡轮，产生电力并排放废气。这些废气可以用于加热水或生成蒸汽，从而驱动Rankine bottoming循环，从而提高系统的整体能源效率。通过捕获本来会被浪费的废热，Rankine bottoming过程最大限度地从燃料源中提取能量，从而显著减少燃料消耗和温室气体排放。实施Rankine bottoming循环的一个关键优势是其能够提高发电过程的整体效率。传统燃气涡轮的效率可能只有30-40%，但与Rankine bottoming循环配合使用时，组合循环的效率可以超过60%。这使其成为希望降低运营成本和环境影响的行业的一个有吸引力的选择。此外，Rankine bottoming循环可以利用多种工作流体，包括水、有机流体甚至超临界流体，具体取决于系统的温度和压力条件。这种灵活性允许根据特定的操作要求和资源可用性进行优化。例如，有机Rankine循环（ORCs）在地热能应用中越来越多地被使用，在这些情况下，较低温度的热源可以有效驱动循环，提供可再生能源解决方案。总之，Rankine bottoming循环代表了能源回收和效率提升技术的重要进展。通过将这一循环整合到现有的发电系统中，行业可以利用废热，提高能量输出，同时最小化环境影响。随着世界继续寻求可持续能源解决方案，理解和实施Rankine bottoming循环将在实现这些目标方面发挥关键作用。