Browsing by Author "Neal, Sara Jane"
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Item Carbon Monoxide Release From Whole Bean Roasted Coffee in Storage(49th International Conference on Environmental Systems, 2019-07-07) McCarrick, Alan; Letter, Benjamin; Neal, Sara JaneIndustrial coffee producers have experienced a few hazardous events involving carbon monoxide poisoning of employees working in enclosed spaces where roasted coffee has previously been. Coffee stored in flexible bags are fitted with vent valves allowing the off-gassing carbon dioxide to escape without stressing the bag and without allowing oxygen to enter causing degradation of the beans. What has not been considered until recently is the presence of carbon monoxide at much lower levels along with the carbon dioxide. The Naval Surface Warfare Center Philadelphia Division has worked with a coffee producer to quantify the carbon monoxide release from freshly roasted beans. The levels of carbon monoxide in an enclosed space can easily reach toxic levels in a modest amount of time. Reasonable precautions are necessary to prevent accidental harm to people working in enclosed spaces where coffee is roasted or stored.Item Disabled Submarine Escape and Rescue Considerations(49th International Conference on Environmental Systems, 2019-07-07) Mohundro, Stephanie; Neal, Sara Jane; Thoresen, SteveThe US Navy's submarine escape and rescue program supports US and foreign submarine services, providing needed capability to rescue sailors in the event of a distressed submarine (DISSUB) as demonstrated in support of the missing Argentinian submarine ARA SAN JUAN in November 2017. The U.S. Navy operates the Submarine Rescue Diving and Recompression System (SRDRS) and the Submarine Rescue Chamber Fly-away System (SRCFS) for deep and shallow water rescue. As a result of lessons learned from the SAN JUAN events, the program is actively pursuing technology improvements to address shallow water rescue capability gaps, enhance survivability challenges of DISSUB sailors before and after rescue, improve operational proficiencies, maintain efficiency, and increase international engagements. While maintaining existing rescue readiness, the final manned testing and certification of submarine decompression system will be completed, delivering to the fleet the ability to recover and medically treat sailors from a pressurized DISSUB. Additionally, the system completed CHILEMAR 2018 (August 2018), which focused on the challenges associated with search and localization of a DISSUB, and Exercise Grey Lady (October 2018), which involved the first-time simulation of a USN submarine rescue. This presentation will serve to update government and industry partners on the status of our capabilities, current acquisitions and procurements, highlights of CHILEMAR 2018 and Exercise Grey Lady and to share perspective on future technology objectives.Item US Navy Submarine Sea Trial of a NASA developed Multi-Gas Monitor(48th International Conference on Environmental Systems, 2018-07-08) Mudgett, Paul; Manney, Joshua; Smith, Matthew; Neal, Sara Jane; Pilgrim, JeffreyA Multi-Gas Monitor (MGM) was tested aboard a nuclear submarine during a routine 76 day patrol. NASA’s goal is to study submarines as closed environment analogs to spacecraft and to share development successes with other US government agencies. MGM’s core tunable diode laser spectroscopy technology was developed by Vista Photonics Inc, using Small Business Innovation Research (SBIR) grants and expanded for various spacecraft monitoring applications using NASA program funding. The MGM measures oxygen, carbon dioxide, ammonia and water vapor in ambient air, displays concentrations with temperature and pressure, and stores 30 second moving averages. The sea trial involved locating MGM in a well ventilated area, connecting it to ship power prior to departure, and allowing it run automatically during the entire patrol. Data was stored within MGM for later retrieval. Crew intervention was limited to checking MGM’s display periodically to verify operation. Several weeks after the vessel returned to port, the MGM with its data was retrieved. The paper describes the results of the successful sea trial, comparing MGM data with both Central Atmosphere Monitoring System (CAMS) data and typical International Space Station (ISS) atmosphere ranges measured by a similar MGM during a recent space flight technology demonstration