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首页> 外文会议>International Conference on Enhanced Building Operations; 20061106-08; Shenzhen(CN) >Static Pressure Losses in 6, 8, and 10-inch Non-Metallic Flexible Ducts
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Static Pressure Losses in 6, 8, and 10-inch Non-Metallic Flexible Ducts

机译：6、8和10英寸非金属挠性管的静压损失

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This study measured airflow static pressure losses through non-metallic flexible ducts in compliance with ASHRAE Standard 120-1999, Methods of Testing to Determine Flow Resistance of HVAC Air Ducts and Fittings (ASHRAE 1999). Duct sizes of 6, 8, and 10 inches were tested in a positive pressure, blow-through configuration. An "as-built" test protocol expands the test configurations specified by Standard 120. Results of the current tests extend the existing ASHRAE/ACCA data for the flexible duct, which does not include pressure loss data for flexible ducts that are compressed beyond approximately 4%. The data from this study exhibit higher pressure losses than prior ACCA or ASHRAE data. Some configurations have over ten times the pressure loss found in rigid ducts or fully stretched flexible ducts of the same diameter. The experimental results were utilized to create a set of loss prediction equations for flexible ducts that did not previously exist.
机译：这项研究根据ASHRAE标准120-1999“确定HVAC通风管和配件的流阻的测试方法”（ASHRAE 1999），测量了通过非金属挠性管道的气流静压损失。在正压吹气配置下测试了6、8和10英寸的风管尺寸。 “已建成”的测试协议扩展了标准120所指定的测试配置。当前测试的结果扩展了软管的现有ASHRAE / ACCA数据，其中不包括压缩超过4的软管的压力损失数据。 ％。该研究的数据显示出比以前的ACCA或ASHRAE数据更高的压力损失。某些配置的压力损失是相同直径的刚性管道或完全拉伸的柔性管道的十倍以上。利用实验结果为柔性管道创建了一套以前不存在的损耗预测方程。

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