Fuel Cell Systems for the American Warfighter

2004 ◽  
Vol 1 (1) ◽  
pp. 69-72 ◽  
Author(s):  
Elizabeth Bostic ◽  
Nicholas Sifer ◽  
Terry DuBois ◽  
Christopher Bolton

Power generation and energy storage devices are essential components of the operational capabilities of the modern U. S. military. They are paramount to the tactical performance of advanced electronic systems such as Night Vision Goggles, GPS systems, and laser target designators. The modern “digitized” U.S. military relies extensively on these electronic technologies and others as they are fully integrated into combat environments. However, the demand for these electronic systems, as well as new tactical capabilities, is outpacing the supply of available power and energy devices. Recent studies from Iraq show that standard military power and energy systems, such as generators and batteries, were in high demand but short supply, which often limited operational speed and capabilities. In an effort to improve upon existing military power generation and energy storage devices, the Army’s Research, Development, and Engineering Centers (RDECs) are evaluating innovative technologies such as fuel cells for military applications. A variety of programs at the U.S. ARMY Communications-Electronics Research, Development, and Engineering Center (CERDEC) Fuel Cell lab are serving to fill the power and energy gap for soldier-based platforms. CERDEC serves as a test, evaluation, and program management center focused on transitioning integrated systems from the labs to the users. CERDEC has adopted a “systems of systems” approach to the development and testing of military fuel cell units and strives to develop completely packaged systems in order to rapidly transition fuel cell technology into the field. This paper will address current Army Communications-Electronics Research Development Engineering Center (CERDEC) fuel cell technology programs and their adaptation into military environments.

2020 ◽  
Author(s):  
Rungsima Yeetsorn ◽  
Yaowaret Maiket

Global transportation possesses have compelling rationales for reducing the consumption of oil, emissions of carbon dioxide, and noise pollution. Transitions to alternative transportation technologies such as electric vehicles (EVs) have gained increased attention from the automotive industries. A fuel cell electric vehicle (FCEV) occupying a hydrogen engine is one of the most stupendous technologies, since it is suitable for a large-scale transportation. However, its performance limitations are in question due to voltage degradation in long term operations through steady conditions under constant load and dynamic working conditions. Other drawbacks of using fuel cells in EVs are energy balances and management issues necessary for vehicle power and energy requirements. An efficient solution to accommodate driving behavior like dynamic loads comprises of hybridizing PEMFCs with energy storage devices like supercapacitors and batteries. This opening chapter reviews the projected gist of FCEV status; considers the factors that are going to affect how FCEVs could enter commercialization, including the importance of fuel cells for EV technologies; the degradation diagnoses using accelerated stress test (AST) procedures; FCEV hybridization; and the contribution of an energy storage device for charging EVs. The article also addresses case studies relating to material degradation occurring from driving behavior. Information about material degradation can be compiled into a database for the improvement of cell component performance and durability, leading to the creation of new materials and new fuel cell hybridization designs. To support the growth of EV technologies, an energy storage is required for the integrated alternative electricity generations. A redox flow battery is considered as a promising candidate in terms of attractive charging station for EVs or HEVs.


2019 ◽  
Vol 44 (41) ◽  
pp. 23416-23428 ◽  
Author(s):  
Ali Djerioui ◽  
Azeddine Houari ◽  
Samir Zeghlache ◽  
Abdelhakim Saim ◽  
Mohamed Fouad Benkhoris ◽  
...  

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