Employing Hydrogen Fuel Cell in Hybrid Energy Systems for Stand-Alone, Off-Grid Remote Sites in UAE

2014 ◽  
pp. 811-817 ◽  
Author(s):  
Ensiyeh Keshtkaran ◽  
Abbas A. Fardoun ◽  
Hassan Noura
Keyword(s):  
Fuel Cell ◽  
Energy Systems ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Hybrid Energy ◽  
Hybrid Energy Systems ◽  
Remote Sites

scholarly journals Lifetime Estimation and Failure Risk Analysis in a Power Stage Used in Wind-Fuel Cell Hybrid Energy Systems

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1412 ◽  
Author(s):  
Sima Rastayesh ◽  
Sajjad Bahrebar ◽  
Amir Sajjad Bahman ◽  
John Dalsgaard Sørensen ◽  
Frede Blaabjerg
Keyword(s):  
Fuel Cell ◽  
Weibull Distribution ◽  
Cell Hybrid ◽  
Reliability Assessment ◽  
Energy Systems ◽  
Power Circuit ◽  
Hybrid Energy ◽  
Hybrid Energy Systems ◽  
Power Stage ◽  
Fuel Cell Hybrid

This paper presents a methodology based on the failure mode and effect analysis (FMEA) to analyze the failures in the power stage of wind-fuel cell hybrid energy systems. Besides, fault tree analysis (FTA) is applied to describe the probabilistic failures in the vital subcomponents. Finally, the reliability assessment of the system is carried out for a five-year operation that is guaranteed by the manufacturer. So, as the result, the reliability analysis proves that the metal oxide semiconductor field effect transistor (MOSFET) and electrolytic capacitor are the most critical components that introduce damages in the power circuit. Moreover, a comparative study on the reliability assessment by the exponential distribution and the Weibull distribution show that the B1 lifetime obtained by the Weibull distribution is closer to reality.

scholarly journals Novel studies on hydrogen, fuel cell and battery energy systems

2010 ◽  
Vol 35 (1) ◽  
pp. 1-1 ◽  
Author(s):  
Dennis Y. C. Leung ◽  
Hongxing Yang ◽  
Jinyue Yan
Keyword(s):  
Fuel Cell ◽  
Energy Systems ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Novel Studies ◽  
Battery Energy

Hybrid energy systems in unmanned aerial vehicles

2019 ◽  
Vol 91 (5) ◽  
pp. 736-746 ◽  
Author(s):  
Anna Maria Mazur ◽  
Roman Domanski
Keyword(s):  
Fuel Cell ◽  
Unmanned Aerial Vehicles ◽  
Energy Management ◽  
Electric Propulsion ◽  
Energy Systems ◽  
Propulsion Systems ◽  
Content Type ◽  
Hybrid Energy ◽  
Hybrid Energy Systems ◽  
Environmental Friendly

Purpose The presented research is carried out in reaction to the soaring costs of fuel and tight control over environmental issues such as carbon dioxide emissions and noise. The purpose of this paper is to study the feasibility of applying the environmental-friendly energy source in an unmanned aerial vehicles (UAVs) propulsion system. Design/methodology/approach Currently, the majority of UAVs are still powered by conventional combustion engines. An electric propulsion system is most commonly found in civilian micro and mini UAVs. The UAV classification is reviewed in this study. This paper focuses mainly on application of electric propulsion systems in UAVs. Investigated hybrid energy systems consist of fuel cells, Li-ion batteries, super-capacitors and photovoltaic (PV) modules. Current applications of fuel cell systems in UAVs are also presented. Findings The conducted research shows that hybridization allows for better energy management and operation of every energy source onboard the UAV within its limits. The hybrid energy system design should be created to maximize system efficiency without compromising the performance of the aircraft. Practical implications The presented study highlights the reduction of the energy consumption, necessary to perform the mission and maximizing of the endurance with simultaneous decrease in emissions and noise level. Originality/value The conducted research studies the feasibility of implementing the environmental-friendly hybrid electric propulsion systems in UAVs that offers high efficiency, reliability, controllability, lack of thermal and noise signature, thus, providing quiet and clean drive with low vibration levels. This paper highlights the main challenges and current research on fuel cell in aviation and draws attention to fuel cell – electric system modeling, hybridization and energy management.

A Solar-Hydrogen Fuel-Cell Home and Research Platform

2009 ◽  
Vol 6 (3) ◽  
Author(s):  
David J. Palmer ◽  
Gregory D. Sachs ◽  
William J. Sembler
Keyword(s):  
Fuel Cell ◽  
Alternative Energy ◽  
New York State ◽  
Energy Systems ◽  
The United States ◽  
Solar Array ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Solar Hydrogen ◽  
Research Platform

The Solar-Hydrogen Fuel-Cell Home located at the United States Merchant Marine Academy, one of America’s five federal service academies, is believed to be the first of its kind in New York State and perhaps the nation. It represents a synergy of alternative-energy equipment that uses the sun’s energy to create electricity to power the home or surrounding community. Furthermore, it creates hydrogen gas that can be used as a fuel for a variety of applications. The hydrogen produced has two main purposes. First, the hydrogen supplies a fuel cell that produces electricity for the home in the evenings or during days when it is cloudy. Second, the hydrogen can be used to fill up the fuel tank of an environmentally friendly hydrogen-powered automobile after a typical day of operation. There are three primary objectives of this paper. The first objective is to provide a technical overview of the home’s energy systems. This includes an overview of the various monitoring devices, followed by a discussion on how these types of energy systems can help meet the needs of sustainability and energy independence. Building upon this information, the second objective is to perform an analysis of the current system configuration, including the solar array capacity, fuel cell size, and quantity of hydrogen that can be produced versus what is required for the home to be energy self-sufficient. The third objective is to explore existing maritime and military applications and to suggest future applications that may stem from research of this cutting-edge Solar-Hydrogen Fuel-Cell Home and research platform.

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