[abstract] THERMAL CHARACTERISTICS OF DIVING GARMENTS WHEN USING ARGON AS A SUIT INFLATION GAS.

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[abstract] THERMAL CHARACTERISTICS OF DIVING GARMENTS WHEN USING ARGON AS A SUIT INFLATION GAS.

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dc.contributor.author Nuckols, ML
dc.contributor.author Giblo, J
dc.contributor.author Wood-Putnam, JL
dc.date.accessioned 2008-10-25T01:17:50Z
dc.date.available 2008-10-25T01:17:50Z
dc.date.issued 2008
dc.identifier.citation Undersea Hyperb Med. 2008 July-Aug;35(4) en
dc.identifier.issn 1066-2936
dc.identifier.uri http://archive.rubicon-foundation.org/7789
dc.description Abstract of the Undersea & Hyperbaric Medical Society 2008 Annual Scientific Meeting June 26-28, 2008 Salt Lake City Marriott Downtown, Salt Lake City, Utah. en
dc.description.abstract INTRODUCTION: Argon gas has frequently been used by cave divers and technical divers as a drysuit inflation gas to augment thermal protection when diving in cold water. While argon has a thermal conductivity that is approximately 30% lower than that of air, not all are in agreement as to the thermal benefits that can be achieved with argon suit inflation. The objective of this study, sponsored by the Office of Naval Research, was to quantify the potential thermal benefits that are obtainable when using argon instead of air as a drysuit inflation gas. MATERIALS AND METHODS: The thermal insulation characteristics of two drysuit ensembles, consisting of the same tri-laminate outergarment with differing undergarments, were measured on a 21-zone thermal manikin when using air and argon alternatively as the suit inflation gas. Suit insulation values were measured by recording the electrical power levels required to be delivered to each manikin zone to maintain a fixed manikin skin temperature of 30oC (86oF) while submerged in a constant temperature water bath. Prior to manikin submergence, the drysuits were repeatedly inflated and then purged with either air or industrial grade argon for a minimum of 6 cycles to insure the purity of the inflation gas inside the drysuit. RESULTS: Improvements in localized thermal insulation values were seen throughout both drysuit ensembles when using argon as an inflation gas when compared with those while using air. Overall, the total suit insulation values increased by 16 – 20% for the two drysuit ensembles. CONCLUSIONS: This investigation has demonstrated that significant improvements in drysuit thermal protection can theoretically be achieved when using argon instead of air as a drysuit inflation gas. It should be noted however that these improvements can only be achieved by carefully and repeatedly purging (a minimum of 6 purge cycles) with pure argon prior to water entry. (Note: http://archive.rubicon-foundation.org/7962) en
dc.description.sponsorship US NAVY en
dc.format.extent 193 bytes
dc.format.mimetype text/plain
dc.language.iso en_US en
dc.publisher Undersea and Hyperbaric Medical Society, Inc. en
dc.subject DIVING en
dc.subject DIVER EQUIPMENT en
dc.subject thermal protection en
dc.subject ARGON en
dc.subject dry suit en
dc.subject undergarment en
dc.subject cold water en
dc.subject.mesh Evaluation Studies Research Support, Non-U.S. Gov't MeSH Terms: Adult Air Analysis of Variance Argon* Body Temperature Cold Diving*/standards Humans Protective Clothing* Thermal Conductivity Weight Loss Substances: Argon en
dc.title [abstract] THERMAL CHARACTERISTICS OF DIVING GARMENTS WHEN USING ARGON AS A SUIT INFLATION GAS. en
dc.type Article en

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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