Showing posts with label generation. Show all posts
Showing posts with label generation. Show all posts

The French Make Foam Injection Bone Repair

What are the French good for? Supplying top class engineers to Britain because they still use the rote system in education maybe? The French do have some good ideas though. They have come up with a way to strengthen bones.
Calcium phosphate foam cement
For years foam has been injected into walls of houses to improve insulation. The concept has been adapted to health. Calcium phosphate cement has been used for some time to repair bones. It is a bone substitute during surgery. The compound has now been made into a foam. It can be injected into bone to repair defects. Tests have shown it regenerates bone growth in osteoporosis treatment.
Calcium phosphate foam cement texture
French chemists at the University of Nantes have used hydrogen to push air bubbles into the calcium phosphate compound. These cavities enable new bone growth to strengthen weakened bones.  Medical breakthroughs are ongoing.  It is a pity health provision in all countries of the world is failing while new treatment techniques continue.
 Chemistry by Ty Buchanan 
 Australian Blog
            Australian Blog   Adventure Australia
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Australia Breaks Supercritical Steam Record to Replace Coal

Australia has made a new world record in "supercritical" steam. This involves the use of solar panels to generate heat that boils water and generates steam. The steam could be used instead of coal in power plants.

Pressure reached 3,400 psi at a heat of 1,058°F. This is peak performance "stuff". It rivals coal in its efficiency. The first time a non-carbon source has at least equalled the efficiency of coal.

Six hundred mirrors (heliostats) were used and their beams were directed at two towers housing solar receivers and turbines. In the future power generation could be virtually free from the sun during daylight hours.

This technology is new and supersedes older "subcritical" steam production. More work has to be done but there is no doubt power generation will eventually not need coal. It is not good news for Australian exports. It is good for the world though.
Science by Ty Buchanan
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     Australian Blog                         

Power Generation Via Hydrogen Is Not Taking Off

It is amazing how people will see something new, then run with it to the extreme saying this will change the world. This is true for virtually all non-fossil energy producing systems, but all of them have drawbacks and none have revolutionized the power sector. The two major problems have been high cost and non constant energy production during the 24 hour period.

Scientists have worked on hydrogen systems for decades and success seems very distant. It is not being accepted for widespread use. Actually, hydrogen is a "byproduct" of energy production. When electricity is generated by any method the excess not used at a point in time is passed through water. It splits into oxygen and hydrogen via electrolysis with the fuel stored to be used in the future. When hydrogen is recombined with oxygen, electricity is generate. Heat from the process can also be used directly for heating purposes.

As with other environmentally friendly electricity producing methods time will tell if hydrogen is accepted for general use. Perhaps hydrogen can be made in significant quantities from solar and wind generation. It could potentially make for a hybrid system producing electricity 24 hours a day. Until now, governments have been the main source of funding for hydrogen experiments. Apparently, the private sector sees little future in it. For non-fossil energy systems to flourish it is necessary for the community to work together. Unfortunately, individualism is the norm. Perhaps this is why there is very little progress.

Models Show Lasers Can Produce Energy Using Hydrogen-Boron as Fuel

Energy created by lasers could be the way of the future. Researchers have used models and they show that lasers can produce "cold" energy by nuclear fusion. A new generation of fast, powerful lasers makes this possible. To achieve fusion a short, carefully controlled pulse is required. The pulse target is hydrogen and boron. Creating neutrons is not the objective because they cause radioactivity.

The Australian research is duplicating what is going on at the National Ignition Facility at the Lawrence Livermore National Laboratory in the United States, but they are using deuterium-tritium fuel.

A single laser pulse can generate 500 times more electricity than all the power stations in the US. At first the research team did not believe hydrogen-boron fuel would work. However, models indicated that it was only ten times more difficult than deuterium-tritium. For it to work the laser pulse must be clean, that is, lasting only a million, millionth of a second. Optical energy is then converted to mechanical energy.

It is not commonly known but coal power stations actually emit radioactivity - it is a problem in Germany where they are considering burying polluted material. Producing energy by laser pulsing hydrogen-boron creates less radioactivity than using deuterium-tritium. Coal generation is very dirty compared to hydrogen-boron. The waste product is helium gas. Hydrogen-boron is also plentiful. Team leader Professor Hora say it could be some time before the research becomes reality.
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Australian Blog                        

Australians Will Not Accept Nuclear Power

Ian Mcfarlane the Shadow Minister for Energy and Resources says Australia should still consider nuclear power. He must be off his bonnet if he thinks Australians will have a bar of this dangerous form of electricity generation. If a Coalition government seriously suggested a move to nuclear energy people would be protesting in the streets. Then there is the "not in my backyard" syndrome. No community would accept such a potentially toxic plant in their area.

For Mr Mcfarlane's information lessons have been learned from the impossible situation in Japan where there in no solution to the problem. Australians do not want nuclear and will never want nuclear. Japan's economy is severely damaged and the Japanese will have chronic illnesses into the future. Much of the country will have to be fenced off, never to be used by humans ever again.

Australians like everyone else in the world will have to pay much more for electricity as systems of clean coal power generation are ultimately adopted and expensive solar, wind and tidal methods are in general operation. This will happen as countries are dragged screaming and shouting to the table to sign up for carbon pricing. Increasing climactic damage including hits on economies from bad weather will put strong pressure on countries to comply. Countries will put up barriers against products from other economies that do not have low emission policies.
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