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小水量超纯水制备系统的最佳工艺选择 被引量:4
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作者 陈彦宏 《节能与环保》 2022年第3期71-73,共3页
超纯水作为与电子元器件接触最多的介质之一,在半导体行业中占据着重要地位。本文从工艺路线、费用投资、运行成本及二次污染等方面,探讨针对小水量超纯水制备的最佳工艺路线。最终证明:在进水水质、产水水质以及产水量等条件相同的前提... 超纯水作为与电子元器件接触最多的介质之一,在半导体行业中占据着重要地位。本文从工艺路线、费用投资、运行成本及二次污染等方面,探讨针对小水量超纯水制备的最佳工艺路线。最终证明:在进水水质、产水水质以及产水量等条件相同的前提下,采用全膜法制备超纯水比2B3T工艺更具有优势,也将成为未来制备小水量的超纯水系统的主体工艺。 展开更多
关键词 超纯水 全膜法 2B3T 小水量系统
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Selected Experiences with Optimization Tests of the Kaplan-Type Hydraulic Turbines
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作者 Adam Adamkowski Mariusz Lewandowski Stanistaw Lewandowski 《Journal of Energy and Power Engineering》 2014年第6期1002-1011,共10页
The paper presents selected experience of the authors resulting from the optimization tests of double-regulated water turbines. Among the methods for measuring the discharge through the turbine used in such tests, par... The paper presents selected experience of the authors resulting from the optimization tests of double-regulated water turbines. Among the methods for measuring the discharge through the turbine used in such tests, particular attention was paid to index methods allowing to measure the relative discharge through the turbine-the index current meter method and the methods based on measuring the differential pressure between two points properly located at the turbine flow system (i.e., Winter-Kennedy method). These methods contribute to effective reduction of the cost of optimizing the turbine that is extremely important for small hydropower plants regarding installed capacity. The paper presents selected examples of the optimization tests and experiences that arise from these tests. 展开更多
关键词 Double-regulated water turbines cam dependence flow measurement index methods Winter-Kennedy index method current meter index method.
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