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Redesign of steam turbine rotor blades and rotor packages - Environmental analysis within systematic eco-design approach

机译：重新设计汽轮机转子叶片和转子组件-系统生态设计方法下的环境分析

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Eco-design of steam turbine blades could be one of the possibilities of decreasing the environmental impact of energy systems based on turbines. The paper investigates the eco-design approach to elaboration of the rotor blades and packages. The purpose is to present the course of eco-design of the rotor blades and the rotor packages taking account of eco-design assumptions, solutions and the concept itself. The following eco-design variants of the rotor blades and the rotor packages are considered: elements of the rotor blades made separately (baseline variant of the rotor blades); elements of the rotor blades made of one piece of material; blades in packages made separately and welded (baseline variant of the rotor packages); packages milled as integral elements. At the stage of detailed design, the Life Cycle Assessment (LCA) is performed in relation to a functional unit the rotor blades and packages ready for installation in a steam turbine, which is the stage of the turbine. The obtained results indicate that eco-innovative solutions for the turbine blades and packages could be achieved through structural and technological changes. Applying new solutions of the rotor blades may produce the following main benefits: 3.3% lower use of materials, 29.4% decrease in energy consumption at the manufacturing stage, 7.7% decrease in the environmental impact in the life cycle. In relation to the rotor packages, the following main benefits may be achieved: 20.5% lower use of materials, 25.0% decrease in energy consumption at the production stage, 16.2% decrease in the environmental impact in the life cycle. (C) 2016 Elsevier Ltd. All rights reserved.
机译：蒸汽轮机叶片的生态设计可能是减少基于涡轮机的能源系统对环境的影响的可能性之一。本文研究了生态设计方法，以详细说明转子叶片和封装。目的是介绍转子叶片和转子组件的生态设计过程，同时考虑到生态设计的假设，解决方案和概念本身。考虑了以下转子叶片和转子组件的生态设计变体：转子叶片的元件分别制造（转子叶片的基线变体）；转子叶片的元件由一种材料制成；单独制造并焊接的包装中的叶片（转子包装的基准变体）；将包装作为整体元素进行铣削。在详细设计阶段，针对准备安装在蒸汽涡轮机中的转子叶片和组件的功能单元执行生命周期评估（LCA），这是涡轮机的阶段。获得的结果表明，可以通过结构和技术变革来实现涡轮叶片和组件的生态创新解决方案。应用转子叶片的新解决方案可能会产生以下主要好处：减少3.3％的材料使用，在制造阶段减少29.4％的能耗，在整个生命周期中减少7.7％的环境影响。相对于转子组件，可以实现以下主要优点：减少材料使用20.5％，在生产阶段减少25.0％的能耗，在生命周期中减少16.2％的环境影响。 （C）2016 Elsevier Ltd.保留所有权利。

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