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Modular Systems for Energy and Fuel Transport
Published in Yatish T. Shah, Modular Systems for Energy Usage Management, 2020
The system includes a diesel and electric discharge pump system with mechanical totalizing flow meter, fuel filtration (aviation or ground), and an inlet connection to refuel the system from bulk fuel sources as well as a hose reel with 100 ft/30 m of hose, grounding reel, and fuel nozzles to refuel military vehicles. All components remain inside modular containers for protection. Each modular container includes a 5,000 USG/20,000 L Terra Tank TM collapsible fuel bladder with Insta-Berm TM secondary containment, Rain Drain TM rain water management system, Sun Shade, and connection hoses [112, 113].
The Tides of the Zodiac MK VI HD: Comparing the Usability of Inflatable Boats for Seaborne Operations
Published in IISE Transactions on Occupational Ergonomics and Human Factors, 2019
J. Taverniers, J. Suss, G. Delcourt, Y. De Neve
To supplement the quantitative comparison, this method allowed for enumeration and description of remaining and newly apparent usability problems (Lewis, 2012). Through open-ended survey questions and face-to-face interviews with end-users, some deficiencies were identified that remained or were related to shortcomings in the newly-introduced features. First, although the new central console had major advantages, the nearly doubled weight represented a clear challenge for the crew, particularly during transport and dis/assembly. Second, and directly related to operational performance, the material used for the windshield did not appear very well-adapted to seaborne operations, as saltwater often rendered the windshield opaque. Moreover, during intense use, when quick handling and optimal visibility are indispensable, it proved quite difficult for the coxswain to wash off the salt and manpower had to be redirected from other essential tasks. Two other task-critical design concerns were identified. The flexible reserve fuel bladder (Fig. 3) worked well when full, but as it emptied and the fuel sloshed around, the end of the fuel pickup tube was not always submerged in the fuel. This prevented all of the available fuel from being used, thus reducing the range of the boat. Users also noted that the digital speed indicator on the new console, which replaced the analog indicator on the old model, would become useless if the console lost power. Problem discovery, such as conducted during the current study, can build confidence in issued equipment and increase acceptance from end-users (Annett & Stanton, 2006).