<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Maintaining a stable oxygen content in the breathing loop of the diving apparatus with a semi-closed respiratory circuit is essential for the safety of underwater mine clearance operations. This article discusses the influence of modified methods of flushing the breathing apparatus on the quality of the breathing loop ventilation process. The problem of flushing an apparatus is presented in light of the Polish Naval Academy’s change from statistical to deterministic decompression schedules, based on the model of apparatus ventilation, oxygen toxicity hazard and decompression. The examination and determination utilising the required accuracy of the method used for flushing the breathing loop of the device allowed to assess the stable oxygen content during the decompression phase. The assumptions were verified based on a system for measuring oxygen content in the breathing loop.</p></abstract>

Maintaining a stable oxygen content in the breathing loop of the diving apparatus with a semi-closed respiratory circuit is essential for the safety of underwater mine clearance operations. This article discusses the influence of modified methods of flushing the breathing apparatus on the quality of the breathing loop ventilation process. The problem of flushing an apparatus is presented in light of the Polish Naval Academy’s change from statistical to deterministic decompression schedules, based on the model of apparatus ventilation, oxygen toxicity hazard and decompression. The examination and determination utilising the required accuracy of the method used for flushing the breathing loop of the device allowed to assess the stable oxygen content during the decompression phase. The assumptions were verified based on a system for measuring oxygen content in the breathing loop.

The Influence of the Flushing Method on the Stable Oxygen Content in the Scr<sup>1</sup> Crabe Breathing Loop in the Decompression Phase

Department of Underwater Works Technology of the Polish Naval Academy

Polish Hyperbaric Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The Influence of the Flushing Method on the Stable Oxygen Content in the Scr Crabe Breathing Loop in the Decompression Phase

Maintaining a stable oxygen content in the breathing loop of the diving apparatus with a semi-closed respiratory circuit is essential for the safety of...

The Influence of the Flushing Method on the Stable Oxygen Content in the Scr¹ Crabe Breathing Loop in the Decompression Phase

Published Online: Oct 14, 2020

Page range: 21 - 42

Received: Dec 14, 2019

Accepted: Jan 25, 2020

DOI: https://doi.org/10.2478/phr-2020-0002

Keywords
diving apparatus, breathing gas for hyperbaric purposes, flushing process, diving technology

© 2020 Arkadiusz Woźniak, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The Influence of the Flushing Method on the Stable Oxygen Content in the Scr1 Crabe Breathing Loop in the Decompression Phase

Published Online: Oct 14, 2020

Page range: 21 - 42

Received: Dec 14, 2019

Accepted: Jan 25, 2020

DOI: https://doi.org/10.2478/phr-2020-0002

Keywordsdiving apparatus, breathing gas for hyperbaric purposes, flushing process, diving technology

© 2020 Arkadiusz Woźniak, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The Influence of the Flushing Method on the Stable Oxygen Content in the Scr¹ Crabe Breathing Loop in the Decompression Phase

Keywords
diving apparatus, breathing gas for hyperbaric purposes, flushing process, diving technology