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    • 8. 发明授权
    • Apparatus and method for measurement of the film cooling effect produced by air cooled gas turbine components
    • 用于测量由空气冷却的燃气轮机部件产生的膜冷却效果的装置和方法
    • US08768646B2
    • 2014-07-01
    • US12948088
    • 2010-11-17
    • Douglas E. Key
    • Douglas E. Key
    • G01K7/00G06F17/00G06F19/00
    • G01K17/08G01J5/00G01J5/0088G01J2005/0077G01K7/00G01N25/20G06F17/00G06F19/00
    • A method for measurement of a film cooling effect is disclosed. Film cooling is a technique developed to protect gas turbine engine components from the extremely high temperatures created during its operation. A controlled air pressure is ducted into the hollow interior of the component and the mass rate of air flowing through the plurality of film cooling features or openings is measured. A coolant is then injected into the hollow interior of the component and allowed to flow out of a film cooling feature onto the heated outer surface of the component. The resulting infrared signature is a measure of the relative cooling effect generated by the individual film cool feature. The film cooling effect for an individual feature is quantified as the proportion of mass rate of airflow contributed by its relative individual cooling effect. The area, location and shape of the cooling effect are further classified to determine the degree of conformance to its design intent.
    • 公开了一种薄膜冷却效果的测量方法。 薄膜冷却是一种技术,用于保护燃气涡轮发动机部件免受其运行过程中产生的极高温度。 控制的空气压力被引导到部件的中空内部,并且测量流过多个膜冷却特征或开口的空气的质量比。 然后将冷却剂注入到部件的中空内部并允许从膜冷却特征流出到部件的加热的外表面上。 所得到的红外特征是由各个薄膜冷却特征产生的相对冷却效果的量度。 单个特征的膜冷却效果被量化为由其相对单独冷却效果贡献的气流质量比的比例。 冷却效果的区域,位置和形状进一步分类,以确定其设计意图的一致程度。
    • 10. 发明授权
    • Heat measuring apparatus and method for use in a continuous fluid stream
    • 用于连续流体流的热测量装置和方法
    • US4362404A
    • 1982-12-07
    • US131028
    • 1980-03-17
    • Peter R. Armstrong
    • Peter R. Armstrong
    • G01K17/08
    • G01K17/08
    • A technique for use in measuring the amount of heat entering (or being withdrawn from) a continuous fluid stream at a specific location along its path is disclosed herein. This technique utilizes a constant ratio fluid flow divider, e.g., a fluidic bridge, for diverting a portion of the fluid stream along a bypass route. Heat is applied to the diverted stream along its bypass route and, at the same time, the difference in temperature between the diverted stream and the mainstream is detected at predetermined points. From this difference, the amount of heat applied to the diverted stream is controlled so as to substantially eliminate any temperature differential between these points. The amount of heat to accomplish this is proportional by a fixed amount to the heat entering (or leaving) the main stream at the heating (cooling) process to be measured.
    • 本文公开了一种用于测量沿着其路径的特定位置处进入(或从其排出)连续流体流的热量的技术。 该技术利用恒定比例的流体分流器,例如流体桥,用于沿着旁路路线转移流体流的一部分。 沿其旁路路线向转向流施加热量,同时在预定点检测转向流与主流之间的温差。 根据该差异,控制施加到转向流的热量,以便基本上消除这些点之间的任何温度差。 实现这一点的热量与在待测量的加热(冷却)过程中进入(或离开)主流的热量成比例。