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首页> 外文期刊>Science and Technology for the Built Environment >A literature review of air mixing devices for psychrometric performance measurement applications (ASHRAE RP-1733)
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A literature review of air mixing devices for psychrometric performance measurement applications (ASHRAE RP-1733)

机译：用于心理素质性能测量应用的空气混合装置的文献综述（ASHRAE RP-1733）

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摘要

For measurements of unitary HVAC&R equipment and heat exchanger performance, tolerances on capacity measurements relative to the published ratings or mismatch in energy balances are limited to 5% as mentioned in AHRI standards (210/240, 340/360, and 365), ASHRAE 33 and 37, and in U.S. federal regulations. However, differences in design of the air mixing and measuring apparatus due to generous guidelines may result in discrepancies in measured airside capacity that exceed the allowable tolerances, leading to so-called "false testing failures." In order to maintain the HVAC&R industries' credibility, it is essential to develop standardized design criteria for the test apparatus that reduce the probability of such failures. This literature review gives an overview of available and relevant research and standards to provide comprehensive and general information on air mixing devices and measurement techniques for psychrometric performance testing. Furthermore, this review article summarizes mixing effectiveness and static pressure drop for representative mixer types, design parameters, and various testing conditions based on our understanding of experimental results in open literature.
机译：对于单一HVAC＆R设备和热交换器性能的测量，相对于公布的评级或能量余额中错配的容量测量的公差仅限于ASHRI标准（210/240,340 / 360和365）中提到的5％，Ashrae 33 37，以及美国联邦法规。然而，由于慷慨的准则，空气混合和测量装置的设计的差异可能导致超过允许的容差的空间能力差异，导致所谓的“错误测试失败”。为了维持HVAC＆R产业的可信度，必须为降低这种故障概率的测试装置开发标准化的设计标准。该文献综述概述了可用和相关的研究和标准，提供有关空气混合装置的全面和一般信息，以及用于心理性能测试的测量技术。此外，该综述文章总结了代表性混合器类型，设计参数和各种测试条件的混合效率和静态压降，基于我们对开放文献中的实验结果的理解。

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