Study on the noise reduction of refrigerant flow at outlet of capillary tube (relationship between two-phase flow and noise issue)

Study on the noise reduction of refrigerant flow at outlet of capillary tube (relationship between two-phase flow and noise issue)

Recently, Noise reduction for indoor air conditioning units has become necessary. This paper discusses: (1) Exploration at the noise source of capillary tube and outlet plenum. (2) the reason for high-and-low-frequency noise of fluid flow based on R22 fluid flow pattern. (3) the method of noise redu...

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Veröffentlicht in:Nihon Kikai Gakkai rombunshuu. B hen 1995-01, Vol.61 (584), p.1450-1455
Hauptverfasser: Yoshikawa, Hideo, Ozawa, Takeo, Inoue, Yukiharu, Takeuchi, Seikou
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Sprache:jpn
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Air conditioning
Q1
Refrigerants
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container_issue 584
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container_title Nihon Kikai Gakkai rombunshuu. B hen
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creator Yoshikawa, Hideo
Ozawa, Takeo
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Takeuchi, Seikou
description Recently, Noise reduction for indoor air conditioning units has become necessary. This paper discusses: (1) Exploration at the noise source of capillary tube and outlet plenum. (2) the reason for high-and-low-frequency noise of fluid flow based on R22 fluid flow pattern. (3) the method of noise reduction dependent on supercooling of refrigerant R22 by setting an additional cooler up-stream of the capillary tube. According to the above items, it is necessary for the noise reduction to control bubble contents at an outlet of the capillary tube.
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ispartof Nihon Kikai Gakkai rombunshuu. B hen, 1995-01, Vol.61 (584), p.1450-1455
issn 0387-5016
language jpn
recordid cdi_proquest_miscellaneous_16937389
source J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Air conditioning
Q1
Refrigerants
title Study on the noise reduction of refrigerant flow at outlet of capillary tube (relationship between two-phase flow and noise issue)
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