Study on Reliable Design Method for Residential Ventilation Systems Employing Ducts : Part 1-Measurement Protocols of Pressure Drops for Components of Ventilation Systems

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  • 住宅用ダクト換気システム設計法の信頼性向上に関する研究 : 第1報-換気システム部材の風量-静圧特性試験方法の検討
  • ジュウタクヨウ ダクト カンキ システム セッケイホウ ノ シンライセイ コウジョウ ニ カンスル ケンキュウ ダイ1ポウ カンキ システム ブザイ ノ フウリョウ セイアツ トクセイ シケン ホウホウ ノ ケントウ

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Accurate pressure drop data on ventilation systems' components is requisite for design of ventilation system, which has to meet planed ventilation rate. However, existing measurement protocols for components of ventilation systems can not be applied to every kinds of component, judging from the review on the related technical papers, standards and regulations. Therefore in this paper, more precise measurement protocols are investigated with utilising a test chamber which has been generally used for existing protocols. The protocols are suggested for the measurement of duct and other ventilation systems' components. The measurement methods for components require the use of either "static pressure distribution method" or "duct's static pressure correction method". The former one is suggested as more accurate method and the latter one requires smaller test space with moderate measurement accuracy. Finally, measurement results on ventilation fan and ducts are shown as examples of the proposed methods.

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