塩化カルシウムを用いた医療用温湿度交換器の過渡応答特性に関する研究  [in Japanese] Fundamental Characteristics of the Transient Response of a Heat and Moisture Exchanger with a CaCl<sub>2</sub> Component  [in Japanese]

Access this Article

Search this Article

Author(s)

Abstract

<p>医療用温湿度交換器(HMEF)の温度と湿度の過渡応答過程について,実験,数値シミュレーションにより検討を加えた.HMEF容器に何も入れない場合,スポンジを入れた場合,スポンジの一部に塩化カルシウムを含浸させた場合について,呼気を想定した温度37°Cの飽和空気を供給し,引き続き逆向きに,吸気を想定した温度26°Cの乾燥空気を供給した場合の呼気側,吸気側の温度,湿度の時間変化を実験的に測定した.その結果,塩化カルシウムを用いると,その潮解現象により,水の凝縮を特に顕著に増加させることができることが明らかとなった.また,熱,物質輸送の1次元モデルを構築し,解析を行った.その結果は実験結果とも良く対応しており,HMEFの基本特性を1次元熱・物質輸送モデルで記述できることを示した.</p>

<p>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<sub>2</sub> 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.</p>

Journal

  • KAGAKU KOGAKU RONBUNSHU

    KAGAKU KOGAKU RONBUNSHU 44(6), 355-362, 2018

    The Society of Chemical Engineers, Japan

Codes

  • NII Article ID (NAID)
    130007519858
  • NII NACSIS-CAT ID (NCID)
    AN00037234
  • Text Lang
    JPN
  • ISSN
    0386-216X
  • NDL Article ID
    029420086
  • NDL Call No.
    Z17-725
  • Data Source
    NDL  J-STAGE 
Page Top