Hydrogen Gas Production from Nuclear Power Plant in Relation to Hydrogen Fuel Cell Technologies Nowadays

2010 ◽  
Author(s):  
Elin Yusibani ◽  
Insan Kamil ◽  
Zaki Suud ◽  
Zaki Su’ud ◽  
A. Waris
Keyword(s):  
Fuel Cell ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Gas Production ◽  
Hydrogen Gas ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Cell Technologies

Hydrogen Fuel Cell and Battery Hybrid Architecture for Range Extension of Electric VTOL (eVTOL) Aircraft

2021 ◽  
Vol 66 (1) ◽  
pp. 1-13
Author(s):  
Wanyi Ng ◽  
Mrinalgouda Patil ◽  
Anubhav Datta
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Power Plant ◽  
Lithium Ion ◽  
Power Sharing ◽  
Hybrid Architecture ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Lift Off ◽  
The Impact

The objective of this paper is to study the impact of combining hydrogen fuel cells with lithium-ion batteries through an ideal power-sharing architecture to mitigate the poor range and endurance of battery powered electric vertical takeoff and landing (eVTOL) aircraft. The benefits of combining the two sources is first illustrated by a conceptual sizing of an electric tiltrotor for an urban air taxi mission of 75 mi cruise and 5 min hover. It is shown that an aircraft of 5000–6000 lb gross weight can carry a practical payload of 500 lb (two to three seats) with present levels of battery specific energy (150 Wh/kg) if only a battery–fuel cell hybrid power plant is used, combined in an ideal power-sharing manner, as long as high burst C-rate batteries are available (4–10 C). A power plant using batteries alone can carry less than half the payload; use of fuel cells alone cannot lift off the ground. Next, the operation of such a system is demonstrated using systematic hardware testing. The concepts of unregulated and regulated power-sharing architectures are described. A regulated architecture that can implement ideal power sharing is built up in a step-by-step manner. It is found only two switches and three DC-to-DC converters are necessary, and if placed appropriately, are sufficient to achieve the desired power flow. Finally, a simple power system model is developed, validated with test data and used to gain fundamental understanding of power sharing.

Hyundai Santa Fe FCV Powered by Hydrogen Fuel Cell Power Plant Operating Near Ambient Pressure

2002 ◽  
Author(s):  
Ki-Chun Lee ◽  
Seo-Ho Choi ◽  
Soo-Whan Kim ◽  
Tae-Won Lim ◽  
Won-Suk Cho
Keyword(s):  
Fuel Cell ◽  
Power Plant ◽  
Ambient Pressure ◽  
Hydrogen Fuel Cell ◽  
Santa Fe ◽  
Hydrogen Fuel

Hydrogen Fuel Cell Technologies for Sustainable Stationary Applications

2021 ◽  
pp. 166-185
Author(s):  
Raluca-Andreea Felseghi ◽  
Florin Badea
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Clean Energy ◽  
Energy Resources ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Renewable Energy Resources ◽  
Energy Technologies ◽  
Cell Technologies ◽  
Main Components

Science has shown that there are two sustainable alternatives to providing energy needs: renewable energy resources and fuel cells-hydrogen-based energy, which will play a complementary role in securing global energy resources. By promoting the use of hydrogen-based energy technologies, as clean energy technologies for stationary applications, at the level of local communities, industrial and commercial communities, research topics in this field will help the practical development of sustainable and clean energy systems. This chapter provides an overview of fuel cells highlighting aspects related to fuel cell short history, the main components and operating principles of fuel cells, the main constructive fuel cell types, and the main ways of powering stationary applications through the hydrogen fuel cell technologies.

Nuclear Power Plant Fires and Explosions: Part II — Hydrogen Ignition Overview

2017 ◽  
Author(s):  
Robert A. Leishear
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Water Hammer ◽  
Hydrogen Gas ◽  
Direct Result ◽  
Plant Safety ◽  
Hydrogen Ignition ◽  
Fukushima Daiichi

Major accidents that were affected by hydrogen fires and explosions included Chernobyl, Three Mile Island, and Fukushima Daiichi. Smaller piping explosions have occurred at Hamaoka and Brunsbüttel Nuclear Power Plants. An overview of pertinent topics is presented here to compare similarities and differences between these accidents. In particular, a hydrogen ignition mechanism is presented here, where fluid transients, or water hammer, may cause pressures to compress flammable hydrogen gas in reactor systems. As the gas compresses, it heats to temperatures sufficient to cause autoignition, or dieseling. Autoignition then leads to fires or explosions in nuclear power plant systems. To explain this evolving theory on hydrogen ignition during fires and explosions, various nuclear power plant hydrogen accidents require discussion. For example, Chernobyl explosions were unaffected by water hammer, while a Three Mile Island hydrogen fire was a direct result of water hammer following a reactor meltdown, and explosions that followed a meltdown at Fukushima Daiichi occurred during a water hammer event. Other piping damages also occurred during water hammer events. The primary purpose of this paper is to serve as a literature review of past accidents and to provide new insights into those accidents. In short, what is known versus what is unknown is discussed here with respect to the ignition sources of nuclear power plant fires and explosions. How can nuclear power plant safety be assured unless previous fire and explosion causes are understood? Prior to this work, they were not understood.

A Storage Module Evaluation for the Hydrogen Fuel Cell on Toy Design

2011 ◽  
Vol 14 (3) ◽  
Author(s):  
P. S. Pa ◽  
S. H. Lin
Keyword(s):  
Fuel Cell ◽  
Modern Science ◽  
Hydrogen Gas ◽  
Small Scale ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Power Sources ◽  
Best Parameter ◽  
Toy Design ◽  
Scientific Accomplishment

The problem of environmental pollution has become worse and worse as the demand for energy has grown. An important aim of modern science is a diligent search for non-polluting methods of energy production. The fuel cell is one of the most important power sources devised in the 21st century and has all the necessary characteristics for environmental protection. The technology is pollution-free and highly efficient, converting the chemical energy of hydrogen gas directly into electricity. The fuel cell can be regarded as a small-scale power plant. The flow of electricity will continue as long as there is a supply of hydrogen. At present the storage of hydrogen is the most important consideration and there is not much information about fuel cells readily available at this time. This study concerns the development of 'The Hydrogen Fuel Cell generates Electricity Module' and demonstrates this in the design and use of a toy. A systemized analysis of power operation using existing fuel cell products and a setup of 'The Hydrogen Fuel Cell generates Electricity Module' was made. The Taguchi Method was used to arrive at the best parameter combination between fuel cell and toy. The best combination of parameters obtained in this experiment provides a power line voltage of 3.0V. An assessment was made of the arrangement of a non-pressurized single fuel cell that will best suit the requirements for use in the toy whale used in this work. This will instill feelings of personal scientific accomplishment and give the toy making industry a new look at the same time. We hope this can be applied on a larger scale in the future to provide non-polluting power for many such applications.

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