Fundamental characteristics of the transient response of a heat and moisture exchanger with a CaCl                         2                          component

Yoshihito Okinaga; Katsumasa Hachisuka; Makoto Murata; Ryo Hagiwara; Masaki Yamaguchi; Kunihisa Eguchi; Toshihisa Ueda

doi:10.1252/kakoronbunshu.44.355

Fundamental characteristics of the transient response of a heat and moisture exchanger with a CaCl ₂ component

Yoshihito Okinaga
, Katsumasa Hachisuka
, Makoto Murata
, Ryo Hagiwara
, Masaki Yamaguchi
, Kunihisa Eguchi
, Toshihisa Ueda

Keio University
Sato Light Industrial Co., Ltd
Teikyo University

Research output: Contribution to journal › Article › peer-review

Abstract

The fundamental characteristics of a medical heat and moisture exchanger with filter (HMEF), the artificial nose, were investigated experimentally and numerically. Transient changes in the temperature and humidity in HMEF were measured. Saturated air at 37°C simulating exhalation by a patient was fed into the HMEF for 180 s, then dry air at 26°C simulating inhalation was fed in the opposite direction. CaCl ₂ installed in the HMEF intensified the condensation of water and retained water in the HMEF. The water vaporized in the returning dry air, allowing and a patient to inhale air with some humidity. The results also revealed that the condensed water can not be completely returned to the inhalation supply. The numerical results showed the difference in the process of condensation and vaporization.

Original language	English
Pages (from-to)	355-362
Number of pages	8
Journal	Kagaku Kogaku Ronbunshu
Volume	44
Issue number	6
DOIs	https://doi.org/10.1252/kakoronbunshu.44.355
State	Published - 2018
Externally published	Yes

Keywords

Artificial nos
Breathing control
Heating and humidifying
Phase change

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10.1252/kakoronbunshu.44.355

Cite this

Okinaga, Y., Hachisuka, K., Murata, M., Hagiwara, R., Yamaguchi, M., Eguchi, K., & Ueda, T. (2018). Fundamental characteristics of the transient response of a heat and moisture exchanger with a CaCl ₂ component Kagaku Kogaku Ronbunshu, 44(6), 355-362. https://doi.org/10.1252/kakoronbunshu.44.355

@article{855ef84e847140e2969b2a5eab65ede9,

title = " Fundamental characteristics of the transient response of a heat and moisture exchanger with a CaCl 2 component ",

abstract = " The fundamental characteristics of a medical heat and moisture exchanger with filter (HMEF), the artificial nose, were investigated experimentally and numerically. Transient changes in the temperature and humidity in HMEF were measured. Saturated air at 37°C simulating exhalation by a patient was fed into the HMEF for 180 s, then dry air at 26°C simulating inhalation was fed in the opposite direction. CaCl 2 installed in the HMEF intensified the condensation of water and retained water in the HMEF. The water vaporized in the returning dry air, allowing and a patient to inhale air with some humidity. The results also revealed that the condensed water can not be completely returned to the inhalation supply. The numerical results showed the difference in the process of condensation and vaporization.",

keywords = "Artificial nos, Breathing control, Heating and humidifying, Phase change",

author = "Yoshihito Okinaga and Katsumasa Hachisuka and Makoto Murata and Ryo Hagiwara and Masaki Yamaguchi and Kunihisa Eguchi and Toshihisa Ueda",

note = "Publisher Copyright: Copyright {\textcopyright} 2018 The Society of Chemical Engineers, Japan.",

year = "2018",

doi = "10.1252/kakoronbunshu.44.355",

language = "英語",

volume = "44",

pages = "355--362",

journal = "Kagaku Kogaku Ronbunshu",

issn = "0386-216X",

publisher = "Society of Chemical Engineers, Japan",

number = "6",

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Okinaga, Y, Hachisuka, K, Murata, M, Hagiwara, R, Yamaguchi, M, Eguchi, K & Ueda, T 2018, ' Fundamental characteristics of the transient response of a heat and moisture exchanger with a CaCl ₂ component ', Kagaku Kogaku Ronbunshu, vol. 44, no. 6, pp. 355-362. https://doi.org/10.1252/kakoronbunshu.44.355

Fundamental characteristics of the transient response of a heat and moisture exchanger with a CaCl ₂ component . / Okinaga, Yoshihito; Hachisuka, Katsumasa; Murata, Makoto et al.
In: Kagaku Kogaku Ronbunshu, Vol. 44, No. 6, 2018, p. 355-362.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Fundamental characteristics of the transient response of a heat and moisture exchanger with a CaCl 2 component

AU - Okinaga, Yoshihito

AU - Hachisuka, Katsumasa

AU - Murata, Makoto

AU - Hagiwara, Ryo

AU - Yamaguchi, Masaki

AU - Eguchi, Kunihisa

AU - Ueda, Toshihisa

PY - 2018

Y1 - 2018

N2 - The fundamental characteristics of a medical heat and moisture exchanger with filter (HMEF), the artificial nose, were investigated experimentally and numerically. Transient changes in the temperature and humidity in HMEF were measured. Saturated air at 37°C simulating exhalation by a patient was fed into the HMEF for 180 s, then dry air at 26°C simulating inhalation was fed in the opposite direction. CaCl 2 installed in the HMEF intensified the condensation of water and retained water in the HMEF. The water vaporized in the returning dry air, allowing and a patient to inhale air with some humidity. The results also revealed that the condensed water can not be completely returned to the inhalation supply. The numerical results showed the difference in the process of condensation and vaporization.

AB - The fundamental characteristics of a medical heat and moisture exchanger with filter (HMEF), the artificial nose, were investigated experimentally and numerically. Transient changes in the temperature and humidity in HMEF were measured. Saturated air at 37°C simulating exhalation by a patient was fed into the HMEF for 180 s, then dry air at 26°C simulating inhalation was fed in the opposite direction. CaCl 2 installed in the HMEF intensified the condensation of water and retained water in the HMEF. The water vaporized in the returning dry air, allowing and a patient to inhale air with some humidity. The results also revealed that the condensed water can not be completely returned to the inhalation supply. The numerical results showed the difference in the process of condensation and vaporization.

KW - Artificial nos

KW - Breathing control

KW - Heating and humidifying

KW - Phase change

UR - https://www.scopus.com/pages/publications/85060898127

U2 - 10.1252/kakoronbunshu.44.355

DO - 10.1252/kakoronbunshu.44.355

M3 - 記事

AN - SCOPUS:85060898127

SN - 0386-216X

VL - 44

SP - 355

EP - 362

JO - Kagaku Kogaku Ronbunshu

JF - Kagaku Kogaku Ronbunshu

IS - 6

ER -

Fundamental characteristics of the transient response of a heat and moisture exchanger with a CaCl ₂ component

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