Proton exchange membrane fuel cell

A H2/O2 proton−exchange membrane fuel cell (PEMFC) is a clean, sustainable energy source and suitable for the operation of small electronic device [1]. Among many problems that still exist for PEMFC, the sluggish reactions at the cathode electrode and poor mass transport of protons and electron decrease the fuel cell performance by increasing the activation overvoltage, or activation loss [2]. This problem can, however, be solved by raising the fuel-cell operating temperature [3], but only up to

Hydrogen Fuel Cells Vs. Gasoline: Who’s Down With HFC? ABSTRACT: The world’s oil supply is a diminishing nonrenewable resource. Soon, a new fuel for automobiles will be needed. Hydrogen fuel cells may very well become the chief replacement for gasoline in our society. INTRODUCTION: In our busy world today, we often find ourselves surrounded by vehicles. But how often do we ponder about by which means these vehicles are running? Vehicles are fueled by gasoline, a gradually diminishing resource

study is to explore the potential of hydrogen as a fuel in the airport GSE vehicles in order to reduce the airport air pollution. The methodology developed for this study compares the direct emissions and indirect emissions for both diesel and hydrogen technologies. The direct emissions are produced by combustion fuel and the indirect emissions are related to the production of fuel. In case of hydrogen technology, proton exchange membrane fuel cells are used to power the GSE vehicles. The study also

existing airplane designs. As per (Kostakis, et al., 2014) cabin pressurization, air-conditioning and anti-ice wing protection require pneumatic power, flight surface actuation, landing gear and breaking require hydraulic power, and finally, engine fuel and oil pumps require mechanical power. Electrical power is limited to cabin lights, fans and avionics. However, on a MEA electrical power is used to power some or all the above mentioned loads. Additionally, two new technological features are incorporated

Main role of an Anion ion membrane is to conduct hydroxyl ions at very high rates from the cathode to the anode where reduction and oxidation of O2 and H2 occur. The AEM and its integration with the electrodes form the heart of the alkaline fuel cell. If the transport through the AEM is not sufficiently high and highly selective, the corresponding fuel cell will not find any practical application. Different types of transport mechanisms occurring in AEMs, is taken from the large amount of literature

with the innovative Herron. There are several solutions to digress from the modern polluting ways of the car, but one of the easiest and most efficient is the usage of hydrogen to power the insurgent Hare pods. The Hares uses a polymer exchange membrane fuel cell

Hydrogen: Car Power of the Future Abstract Recent years have shown an increasingly large need for a practical renewable energy source for such reasons as diminishing fossil fuels and increases in greenhouse gasses. Hydrogen appears to be a way out of this gasoline-dug hole, or at least, a way out in the future. Hydrogen fuel cell cars are being engineered as we speak as the technologies to refuel them cleanly are being proposed. Unfortunately, most of the technologies associated with hydrogen are still

HYDROFUEL CELLS Abstract: Electricity is generated from the energy; we get, by the burning of fossil fuels, where the fuel can be stored and used when needed according to the immediate energy requirements. Hence it is speaking to a concentrated and stable type of energy. On the opposite side, we have some irregular types of energy, for example, wind, wave, tidal and sunlight based. These can 't be put away and must be utilized according to accessibility; generally their energy possibilities are lost

For the past 200 years, human society has had a ravenous appetite for fossil fuels. The huge increase in human population and also the industrial revolution were the major sources of fossil fuel consumption. However it is becoming obvious that our dependence on fossil fuels is causing many problems that we are going to have to address. We now consume ~ 13 terawatts (TW) of energy worldwide but an additional 10 TW of energy will be required to maintain present lifestyles by 2050 (Chae et al. 2009)

How fuel cells work A fuel cell is a device that produces an electrical current through a chemical reaction. All fuel cells contain a cathode and an anode, which are positive and negative electrodes, respectively. The chemical reactions which produce electricity occur at the electrodes. Fuel cells also contain an electrolyte, which carries electrically charged particles between the electrodes. A catalyst also aids to speed up the chemical reaction at the electrodes. In fuel cells, an impurity must