Composition of mixed gas with exhalation characteristics separated by dissolved gas separator with multi-stage passive mixer
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For underwater respiration, it is crucial to increase the amount of dissolved oxygen separated. Since the exhaled breath contains large amounts of oxygen, it is efficient to reuse the exhalation. However, to reuse the exhalation for respiration, the carbon dioxide contained in the exhalation must be reduced below a threshold value. In this study, by mixing a mixed gas with the character-istics of an exhalation with water, using a proposed passive mixer, large-sized bubbles are changed into several small-sized bubbles. By maximizing the contact area between the mixed gas and water, the dissolution of carbon dioxide was increased, and the carbon dioxide was effectively reduced when the mixed gas was separated through a separation device. When the 5 LPM of gas mixture and 40 LPM of water were mixed through the proposed passive mixing and separated through the separation device, the concentration of carbon dioxide was found to be less than 1%.
Abstract
For underwater respiration, it is crucial to increase the amount of dissolved oxygen separated. Since the exhaled breath contains large amounts of oxygen, it is efficient to reuse the exhalation. However, to reuse the exhalation for respiration, the carbon dioxide contained in the exhalation must be reduced below a threshold value. In this study, by mixing a mixed gas with the character-istics of an exhalation with water, using a proposed passive mixer, large-sized bubbles are changed into several small-sized bubbles. By maximizing the contact area between the mixed gas and water, the dissolution of carbon dioxide was increased, and the carbon dioxide was effectively reduced when the mixed gas was separated through a separation device. When the 5 LPM of gas mixture and 40 LPM of water were mixed through the proposed passive mixing and separated through the separation device, the concentration of carbon dioxide was found to be less than 1%.
참고문헌 (5)
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