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首页> 外文会议>The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York >DESIGN OF GENERATOR ACOUSTIC BLANKET AND ITS IMPACT ON GENERATOR COOLING PERFORMANCE
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DESIGN OF GENERATOR ACOUSTIC BLANKET AND ITS IMPACT ON GENERATOR COOLING PERFORMANCE

机译：发电机声毯的设计及其对发电机冷却性能的影响

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摘要

Generator noise is one of the primary concerns in generator designs. The most cost-effective way to deal with the noise issue is to incorporate the reduction of sound pressure level in an early design stage. Once a generator is manufactured, it is often expensive to modify the design for reducing noise levels. For old generators with high sound pressure levels, an effective method to lower the generator noise exposure is to employ acoustic blankets wrapped on the generator external surfaces. However, with the application of acoustic blankets, heat transfer through generator walls can be greatly reduced, leading to the higher generator core temperature and higher generator cooling load. This paper has addressed the design of generator acoustic blankets and its impact on generator cooling performance. The analysis has shown that the influence of acoustic blankets on the generator thermal performance is low or moderate. This suggests that the current acoustic blanket design is feasible. Results from this study have been used to optimize the blanket design.
机译：发电机噪声是发电机设计中的主要问题之一。解决噪声问题的最经济有效的方法是在设计的早期阶段就降低声压级。发电机制造完成后，修改设计以降低噪声水平通常很昂贵。对于具有高声压级的老式发电机，降低发电机噪声暴露的有效方法是采用缠绕在发电机外表面的隔音毯。但是，通过使用隔音毯，可以大大减少通过发电机壁的热传递，从而导致更高的发电机铁心温度和更高的发电机冷却负荷。本文讨论了发电机隔音毯的设计及其对发电机冷却性能的影响。分析表明，隔音毯对发电机热性能的影响很小或中等。这表明当前的隔音毯设计是可行的。这项研究的结果已用于优化毯子设计。

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