29 Aug 2008
Here in Australia, I have developed process for treating wastewater (raw sewage); it can also be used on other contaminated water with the exception of milk contaminated water.
It give potable quality water, with a by product of Hydrogen, a litre of Hydrogen for a litre of wastewater treated, it may differ for other contaminated water.
It contains with in the process a 'Turbo filter' this is capable of nano filtration and could be capable of desalination.
The water from the process is highly suited for power station feed water, as there is no contaminants in the water, all has been removed, there is also no Cryptosporidium, or Giardia in the water ether this has all been 'killed' by the process.
Under development now is a process to utilize another unit that will use the water to create large amounts of Hydrogen/Oxygen in a 'flame' instantaneously. This will be used to 'fuel' the power generating boilers with a flame temp of up to 2,800 deg C. it could be retrofitted to existing COAL fired boilers, the Sulzer type is ideal for this.
The biggest problem here is getting the politicians to back any of this type of research with funding. Then the other thing is there are so wrapped up in using coal, as here in Victoria they have enough to keep them going for a 1,000 years at the present production level.
The unit the OZ Injector as I have called it with the latest information has now the posibility of being retrofitted into the 'gas turbine' YES jets using water for fuel.
So the hydrogen is being 'killed off' by many people that do not want it to succeed, the oil companies for one do not like the idea at all, I expect that the coal companies will be of the same opinion.
Is there any chance the UK my 'old country', I lived just outside of Coventry and worked in the aircraft factory there.
Web name aussepom
01 Sep 2008
I thought you might be interested in this article concerning hight temperature steam electyrolysis research at SRI. I think this technology when used in conjunction with coal fired power plants fitted with carbon capture and storage technology, could provide the hydrogen to power a hydrogen transport sector.
Low-Cost Hydrogen from WaterThe US Department of Energy (DOE) has awarded an SRI-led team a four-year, $2.2 million contract to develop a prototype of a modular industrial system that uses steam electrolysis for low-cost generation of hydrogen.SRI’s proposed steam electrolysis system is expected to be a much more energy-efficient way to produce hydrogen from water than conventional electrolysis. The goal is to generate ultra-pure hydrogen at a cost of $2 to $3 per gallon gasoline equivalent (gge), delivered, compared with the average current cost of hydrogen by electrolysis of more than $4. SRI’s modular system design will allow scaling up and customization to meet a variety of site-specific needs. "SRI has a scientifically proven approach, expertise in industrial implementation, and a clear understanding of the technical issues related to prototype development," said Iouri Balachov, SRI senior research engineer and the project’s principal investigator. "A modular, efficient hydrogen generation system will address some of the technological and economic constraints that are impeding advancement of a hydrogen-based economy." As fuel, hydrogen must be produced by either splitting water or by extracting it from hydrocarbons. The mostwidely used method of splitting water is electrolysis, in which an electric current reduces water to hydrogen and oxygen. With steam electrolysis, some of the energy is added as heat, instead of electricity, which makes the process more energy-efficient.SRI has overall responsibility for the project team’s technical and financial performance, and is responsible for the design of the experimental system and the conduct of experiments. SRI Consulting-Business Intelligence (SRIC-BI), an SRI spin-off, will perform an economic analysis. SRI and SRIC-BI will provide recommendations and technical documentation for field deployment of the system. August 31st 2005 MENLO PARK, Calif.– August 31, 2005 – SRI International, an independent nonprofit research and development organization, today announced that the U.S. Department of Energy has awarded an SRI-led team a four-year, $2.2 million contract to develop a prototype of a modular industrial system that uses steam electrolysis for low-cost generation of hydrogen. SRI's proposed steam electrolysis system is expected to be much more energy-efficient than low-temperature electrolysis and conventional high-temperature electrolysis to extract hydrogen from water. The goal is to generate ultra pure hydrogen at a cost of $2 to $3 per gallon gasoline equivalent (gge, delivered). The current cost of hydrogen by electrolysis is more than $4 per gge (delivered) on average. SRI's modular system design will allow scaling up and customization to meet a variety of site-specific needs. "SRI has a scientifically proven approach, expertise in industrial implementation, and a clear understanding of the technical issues related to prototype development," said Iouri Balachov, SRI senior research engineer and the project's principal investigator. "A modular, efficient hydrogen generation system will address some of the technological and economic constraints that are impeding advancement of a hydrogen-based economy." Hydrogen could serve as a globally sustainable and renewable energy source. It has many potential uses, including powering non-polluting vehicles, heating homes and offices, and fueling aircraft. As fuel, hydrogen must be produced by either splitting water or by extracting it from hydrocarbons. The most widely used method of splitting water is electrolysis, in which an electric current reduces water to hydrogen and oxygen. With steam electrolysis, some of the energy needed to split the water is added as heat, instead of electricity, which makes the process more energy-efficient. The Project Team
SRI has overall responsibility for the project team's technical and financial performance, and is responsible for the design of the experimental system, conduct of experiments, numerical analysis and other technical elements. SRI Consulting Business Intelligence (SRIC-BI), an SRI spin-off, will perform an economic analysis of the steam electrolysis system. SRI and SRIC-BI will provide recommendations and technical documentation for field deployment. About SRI International
Silicon Valley-based SRI International (www.sri.com) is one of the world's leading independent research and technology development organizations. Founded as Stanford Research Institute in 1946, SRI has been meeting the strategic needs of clients for almost 60 years. The nonprofit research institute performs client-sponsored research and development for government agencies, commercial businesses and private foundations. In addition to conducting contract R&D, SRI licenses its technologies, forms strategic partnerships and creates spin-off companies.
12 Sep 2008
Hi AussiePom, PrestonH2,
Thanks for those posts, interesting stuff.
I've been checking out more about the Vanadium Redox (Flow) Batteries recently after I was pointed in that direction. VRB systems in Canada seem to be the primary movers in this field, but they seem to be focussed on large-scale electricity storage. Wikipedia says that there are three primary types of redox/flow batteries and that they are all generally suitable for 1kW loads or higher.
So it would seem to me that a redox battery of some description would be an effective solution for storing electricity on a community scale. One caveat: redox batteries tend to contain highly toxic chemicals, and in significant quantities, so I guess adequate protection would need to be included in any solution and health and safety procedures would have to be carefully monitored.
Does anyone know of any organisations/examples/projects involving community electricity storage using redox batteries?
Also, the wikipedia article stated that some flow redox batteries can output their stored charge over a matter of days. Does this depend on the size of the battery (absolute, not relative to load) or is it more a case of which technology is used?
17 Jan 2009
With reference to the economics of electrolysis of hydrogen for energy storage, I would just like to emphasise that if we have an electrical generation system that is dominated by renewable and nuclear power, both these systems have high capital but low fuel costs. Hence, off peak when the wind is blowing, power will be available at fuel cost - as otherwise the power stations/windmills would have to be switched off. Combining this with smart metering - which already exists for Economy 7 users - makes it simple to provide energy for electrolysis at very low cost - perhaps 20% of peak-time costs? I would like to hear if anyone has looked into what these costs might be on the above supply system.