Hydrogen Fuel Cells
HYDROGEN FUEL CELLS
For people that are looking for ways to be more “green” but don’t want to give up driving their cars, the best alternative that is currently on the market is Hydrogen Fuel. The future of Fuel Cell technology has a growing trend in fueling cars and because it is an eco-friendly alternative, hydrogen fueling stations are on the rise and increased resources are being allocated for further research.
What are the benefits of Hydrogen Fuel Cells
• Fuel Cells have a higher efficiency than diesel or gas engines
• Fuel Cells use 40 – 60% of the fuel’s energy
• Up to a 50% reduction in fuel consumption, compared to conventional vehicles
• Most Fuel Cells operate silently, compared to internal combustion engines
• Fuel Cells can eliminate pollution caused by burning fossil fuels
• For hydrogen fueled Fuel Cells, the only by-product at point of use is water
What is a Hydrogen Fuel Cell
A Fuel Cell combines hydrogen and oxygen to produce electricity, heat, and water. Fuel Cells are often compared to batteries as both convert the energy produced by a chemical reaction into usable electric power.
How do Fuel Cells Work
There are several kinds of Fuel Cells, and each operates a bit differently. But in general terms, hydrogen atoms enter a Fuel Cell at the anode where a chemical reaction strips them of their electrons. The hydrogen atoms are
now “ionized,” and carry a positive electrical charge. The negatively charged electrons provide the current through wires to do work. If alternating current (AC) is needed, the DC output of the fuel cell must be routed through a conversion device called an inverter.
Oxygen enters the Fuel Cell at the cathode and, in some cell types, it there combines with electrons returning from the electrical circuit and hydrogen ions that have traveled through the electrolyte from the anode. In other cell
types the oxygen picks up electrons and then travels through the electrolyte to the anode, where it combines with hydrogen ions.
The electrolyte plays a key role. It must permit only the appropriate ions to pass between the anode and cathode. If free electrons or other substances could travel through the electrolyte, they would disrupt the chemical reaction.
Whether they combine at anode or cathode, together hydrogen and oxygen form water, which drains from the cell. As long as a Fuel Cell is supplied with hydrogen and oxygen, it will generate electricity.
With rapidly falling costs and rising resources, solar PV and wind power are on track to completely replace fossil fuels worldwide within two decades, although the time frame would depend mostly on politics. Solar PV and wind energy offer the only realistic chance of...read more
An analysis by researchers at the Australian National University (ANU) found that Australia has the capacity to store up to 1,000 times more renewable energy than it could ever need. An engineering professor at ANU Andrew Blakers carried out a study looking into...read more
Australian Renewable Energy Agency (ARENA) reportedly committed $2.1 million in support of the commercialization of a 1-megawatt relocatable solar farm that is being developed by SunSHIFT. But the government funding isn’t a donation – the Australian Financial Review...read more
Australian advanced materials company, Archer, and University of South New Wales announced its Collaboration Agreement and Research Service Agreement. The partnership is geared towards developing and implementing Archer’s graphite and graphene materials for use in...read more
Global energy giant Acciona Energy has been chosen to convert 1,250 hectares of underutilized state-owned land at Aldoga into a solar energy project. The project is expected to produce hundreds of jobs and deliver long-term benefits to the community. Cameron Dick,...read more
A Melbourne hotel complex has become the Clean Energy Finance Corporation’s first solar investment in the hotel sector. The Southbank Holiday Inn Express is due for completion at the end of 2019 and CEFC is investing $39 million to install a solar power system plus...read more