{"product_id":"conceptual-design-tool-for-fuel-cell-paul-m-hrad-9781288306060","title":"Conceptual Design Tool for Fuel-Cell Powered Micro Air Vehicles","description":"A conceptual design tool was built to explore power requirements of a hybrid-power system for Micro Air Vehicles (MAVs) comparable in size to the Cooper's Hawk. An inviscid aerodynamic code, Athena Vortex Lattice (AVL), and a motor-propeller analysis code, QPROP, provide overall lift, drag, and thrust data for power-required calculation as functions of many variables to include mass, platform geometry, altitude, velocity, and mission duration. Phoenix Technologies' Model Center was used to integrate multi-disciplinary components that employ specific power and specific energy of two power sources to determine power system mass required for a designated mission. The tool simulated a mission for the fixed wing Generic Micro Aerial Vehicle (GenMAV), and relative sizing between a high specific power source and a high specific energy source was investigated. Current small fuel cell technology provides inadequate specific power. It was found that a MAV-sized fuel cell-battery hybrid-power system would not perform better than a pure battery or battery-battery power system. A feasible fuel cell capability requirement of at least 325 W\/kg matched with at least 921 W-hr\/kg was identified as a fuel cell - Li-Po solution for a defined 30 min mission resulting in reduced power system mass compared to using only Li-Po batteries.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Paul M. Hrad\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1288306067\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781288306060\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Biblioscholar\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 11\/16\/2012\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 236\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.94lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.69h x 7.44w x 0.50d","brand":"Paul M. Hrad","offers":[{"title":"Paperback","offer_id":47611336720639,"sku":"9781288306060","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_07c7df09-b229-48b3-af28-26638d1ab434.jpg?v=1764513238","url":"https:\/\/www.whiterainbookhouse.com\/products\/conceptual-design-tool-for-fuel-cell-paul-m-hrad-9781288306060","provider":"WR Book House","version":"1.0","type":"link"}