pure gas turbine cycle

简明释义

纯燃气轮机循环

英英释义

例句

1.The pure gas turbine cycle 纯气轮机循环 operates on the Brayton cycle principles.

纯气轮机循环基于布雷顿循环原理进行操作。

2.In many power plants, the pure gas turbine cycle 纯气轮机循环 is used for its high power-to-weight ratio.

在许多发电厂中，使用纯气轮机循环是因为其高功率重量比。

3.The efficiency of the pure gas turbine cycle 纯气轮机循环 can be significantly improved with advanced materials.

先进材料可以显著提高纯气轮机循环的效率。

4.During the design phase, engineers focused on optimizing the pure gas turbine cycle 纯气轮机循环 for better thermal efficiency.

在设计阶段，工程师们专注于优化纯气轮机循环以提高热效率。

5.The pure gas turbine cycle 纯气轮机循环 is often combined with steam cycles to enhance overall efficiency.

纯气轮机循环通常与蒸汽循环结合，以提高整体效率。

作文

The pure gas turbine cycle is a thermodynamic cycle that describes the operation of a gas turbine engine. This cycle is fundamental in understanding how gas turbines convert fuel into mechanical energy, which can then be used to generate electricity or power aircraft. In essence, the pure gas turbine cycle consists of four main processes: compression, combustion, expansion, and exhaust. Each of these stages plays a crucial role in ensuring the efficiency and performance of the engine.To begin with, the cycle starts with the compression phase, where ambient air is drawn into the turbine and compressed by a series of axial or centrifugal compressors. This process raises the pressure and temperature of the air, making it more conducive for combustion. The efficiency of this stage is vital because the higher the pressure ratio achieved, the more energy can be extracted during the expansion phase.Following the compression, the next step in the pure gas turbine cycle is combustion. Here, the high-pressure air enters the combustion chamber, where it is mixed with fuel—typically natural gas or aviation fuel. The mixture is ignited, resulting in a rapid increase in temperature and volume of the gas. This high-energy gas then expands through the turbine blades, converting thermal energy into mechanical work. The design of the combustion chamber and the choice of fuel significantly influence the overall efficiency and emissions of the gas turbine.After combustion, the hot gases flow into the turbine section of the engine. During the expansion phase, the gases pass through the turbine blades, causing them to spin and produce mechanical energy. This energy can be harnessed to drive an electrical generator or propel an aircraft. The efficiency of this expansion process is also critical; it determines how much of the energy from combustion is converted into useful work. In a well-designed pure gas turbine cycle, a significant portion of the thermal energy is transformed into mechanical energy, maximizing the overall efficiency of the system.Finally, after the expansion, the gases exit the turbine and are expelled into the atmosphere. This exhaust phase is essential as it marks the end of the cycle. However, advancements in technology have led to the development of combined cycle systems, where the waste heat from the exhaust is utilized to generate additional power through steam turbines. While this goes beyond the scope of the pure gas turbine cycle, it highlights the potential for improving efficiency in gas turbine systems.In conclusion, the pure gas turbine cycle is a vital concept in modern engineering, particularly in the fields of aerospace and power generation. Understanding its intricacies allows engineers to optimize gas turbine designs for better performance and lower emissions. As the demand for cleaner energy sources continues to rise, innovations in the pure gas turbine cycle will play a crucial role in shaping the future of energy production and consumption. The ongoing research and development in this area promise to enhance the efficiency and sustainability of gas turbines, ultimately leading to a greener planet.

纯燃气轮机循环是一个热力学循环，描述了燃气轮机发动机的运作。这个循环在理解燃气轮机如何将燃料转化为机械能方面至关重要，这种机械能可以用来发电或推动飞机。简而言之，纯燃气轮机循环由四个主要过程组成：压缩、燃烧、膨胀和排气。这些阶段中的每一个都在确保发动机的效率和性能方面发挥着至关重要的作用。首先，循环从压缩阶段开始，环境空气被引入涡轮，并通过一系列轴流或离心压缩机进行压缩。这个过程提高了空气的压力和温度，使其更适合燃烧。这个阶段的效率至关重要，因为实现的压力比越高，在膨胀阶段提取的能量就越多。接下来，在纯燃气轮机循环中，下一步是燃烧。在这里，高压空气进入燃烧室，与燃料（通常是天然气或航空燃料）混合。混合物被点燃，导致气体的温度和体积迅速增加。然后，这些高能气体通过涡轮叶片膨胀，将热能转化为机械功。燃烧室的设计和燃料的选择显著影响燃气轮机的整体效率和排放。燃烧后，热气体流入发动机的涡轮部分。在膨胀阶段，气体通过涡轮叶片，导致它们旋转并产生机械能。这种能量可以用于驱动发电机或推进飞机。这个膨胀过程的效率也至关重要；它决定了燃烧中多少能量转化为有用功。在设计良好的纯燃气轮机循环中，燃烧产生的大部分热能转化为机械能，从而最大化系统的整体效率。最后，经过膨胀后，气体从涡轮中排出，排放到大气中。这个排气阶段是必不可少的，因为它标志着循环的结束。然而，技术的进步导致了联合循环系统的发展，其中废气的废热被利用来通过蒸汽涡轮产生额外的电力。虽然这超出了纯燃气轮机循环的范围，但它突显了提高燃气轮机系统效率的潜力。总之，纯燃气轮机循环是现代工程中一个重要的概念，特别是在航空航天和发电领域。理解其复杂性使工程师能够优化燃气轮机设计，以获得更好的性能和更低的排放。随着对清洁能源来源的需求不断上升，纯燃气轮机循环的创新将在塑造未来能源生产和消费中发挥关键作用。在这一领域的持续研究和开发有望提高燃气轮机的效率和可持续性，最终导致一个更绿色的地球。