Future Drive: Hydrogen-diesel from BMW

Engineers from the BMW developed a new cylinder head for hydrogen operation based on a production diesel engine. BMW designed high pressure injectors for direct injection of hydrogen into the combustion chamber with pressures of up to 300 bar, nearly 4500 psi. With the diesel base, however a much better efficiency, with the new technology reached 42 percent and this is on the level of conventional self-ignition. The series using the new technology are technical side, according to Development Director Falk Gerbig no insurmountable obstacles contrary.

The project H2BVplus, an H2-ignition combustion process as a possible cars propulsion of the future will be further investigated. With regard to performance and efficiency can be distinguished from conventional diesel interesting aspects derived. The H2-ignition concept is to increase the efficiency and specific performance is expected.

Still holds the BMW hydrogen combustion because of the relatively low technology and low cost space, particularly for a good alternative to hydrogen fuel cells

Source: BMW HYDROGEN ENGINE REACHES TOP LEVEL EFFICIENCY

BMW hydrogen-diesel (H2BVplus Hydrogen Combustion Engine)

H2BVplus Hydrogen Combustion Engine

BMW hydrogen-diesel (H2BVplus Hydrogen Combustion Engine with Laser Measurement Equipment )

H2BVplus Hydrogen Combustion Engine with Laser Measurement Equipment

BMW hydrogen diesel (3D-CFD Simulation Hydrogen High-Pressure-Injecto)

BMW hydrogen diesel (3D-CFD Simulation Hydrogen High-Pressure-Injector)

Posted under Fuel Cells, Hydrogen Cars, Hydrogen Vehicles

Mini fuel cell from Alreda

The ideas for affordable fuel cells are long in the drawer. For a small company from Switzerland that is primarily for the military operates. And in Geneva is in Hall 3.

Cheap plastic pots, a pathetic fountain, a red trash can on a green carpet. That’s what the Green Pavilion of Geneva. That’s what the Green Pavilion of Geneva. Where’s flawless prototype park should, just for a handful of small-town M├Ârchen, which look more like lawn mowers than CityCruiser. Where’s flawless prototype park should, just for a handful of small-town M├Ârchen, which look more like lawn MOWERS than CityCruiser. Actually, one would immediately go to the Greens, cucumbers, were it not for a small, inconspicuous fair sensation: the world premiere in the trunk. Actually, one would immediately go to the greens, cucumbers, were it not for a small, fairly inconspicuous sensational: the world premiere in the trunk. Unnoticed by the audience Alreda presents newcomers from Switzerland, the smallest and cheapest of the fuel cell world. Unnoticed by the audience Alreda presents Newcomers from Switzerland, the smallest and cheapest fuelcell the world. Alreda, behind this there are seven suppliers, otherwise your money with the vapor deposition of catalysts and car making. Behind this there are seven suppliers, otherwise your money with the vapor deposition of catalysts and car making. Main customer: the global military. Main customer: the global military.

Mini fuel cell from Alreda

Alreda it – insure the Swiss – the first time managed to the outrageously expensive platinum, which is used for fuel cells, in a very thin layer of single atoms on the fuel cell wall to steam. This may fuel the future, according inches Alreda be offered as cheaply as a power generator for camping. For comparison, a conventional fuel cell costs 3000 Euro/kW, a power unit of Honda 500 Euro/kW, the super cell of Alreda just 400 to 600 euros/kW. And something is uncharitable in the trunk of a white truck of electric Piaggo. It is the small two to three kilowatts large cell as Range Extender (range extension) for the electric motor and not as a pure fuel cell propulsion. Even a super idea of the Opel, Karma & Co, a disc can be cut off. The prototype of the fuel cell, just as big as a plate Ritter Sport chocolate, prefers the state employees from a desk drawer out. As we would have guessed it: The ideas for affordable fuel cells are long in the drawer.

Source: Technologie A9 – ALREDA

Posted under Fuel Cells, Hydrogen Cars

This post was written by admin on March 3, 2009

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The Suzuki SX4-FCV hydrogen all

The Japanese manufacturer Suzuki swinging a green card in the World 2008: it sets its prototype called SX4-FCV (5 seats), a car with a fuel cell with hydrogen (108 kW ch/80) it developed with the U.S. manufacturer General Motors. In June 2008, he received permission from the Japanese Ministry of Transport (Ministry of Land Infrastructure and Transport (MLIT)) test on Japanese roads this innovative green vehicle. The objective of this test drive: collect data on vehicle technologies and study the influence of traffic conditions and driving.

Antares DLR H2

Suzuki SX4-FCV

The technical characteristics of the Suzuki SX4-FCV are as follows. It has a reservoir hydrogen under high pressure (70MPa). Its electric motor develops a power of 68 kW. Its supercapacitors capture energy from regenerative braking. The SX4-FCV enjoy an autonomy of 250 km and a speed of 150 km / h. Its measurements? 4190 x 1730 x 1585 mm and a wheelbase of 2,500 mm. For comparison, it is still far from the performance of Nissan X-Trail FCV equipped with a fuel cell with hydrogen, with an autonomy of 500 km (see article).

Antares DLR H2

Suzuki SX4-FCV

Clarification: Suzuki has also introduced its SX4-FCV with hydrogen at the G8 Summit (bringing together heads of state of most industrialized countries of the World) held from 7 to 9 July 2008 at Lake Toya on the island of Hokkaido in Japan.

Antares DLR H2

Suzuki SX4-FCV

Posted under Fuel Cells, Hydrogen Cars, Hydrogen Vehicles

This post was written by admin on October 11, 2008

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Antares DLR H2

The research aircraft Antares DLR H2 is the world’s first bootable, airplane pilot with fuel cell propulsion. It is based substantially on the last few years built boat Antares 20E. In two additional external load containers will be the fuel cell system and the hydrogen tanks under the wings for increased appropriate. In further steps could the performance data of the plane with up to four external load containers and more advanced fuel cells still significantly increased.

Developed and built the high-flying testbed project partners from Long Aviation in Zweibruecken. As the primary source of energy for propulsion is one of the DLR Institute for Technical Thermodynamics specially provided fuel cell system. This system is nearly identical to that used in aircraft fuel supply system for board and provides the electrical energy for the Long Aviation developed powertrain, from the power electronics, motor and propeller exists. The use of a highly efficient fuel cell (efficiency up to 52% electrically) with the hydrogen fuel makes driving this airplane CO2 released. The waste product is clean water.

Antares DLR H2

Antares DLR H2

It is expected that the pairing of the fuel cell with a very quiet and powerful electric propulsion small plane in comparison with piston-driven engines set new standards in the fitness level requires. The project impresses by bringing together interdisciplinary activities. To a very economical flight to allow the entire aircraft is technically optimized flow. The goal is turbulent air currents in all areas to be avoided.

Long Aviation, the company is making a long-standing experience with. The integration of the experimental vessel was both aerodynamically aeroelastic both a challenge by the solid experience of the Institute for Aeroelasticity of the German Aerospace Center, an optimal placement of the containers can be achieved. This is the dynamics of the airplane is not affected. The additional air resistance on the Antares 20E model series are less than 15% and with a potential additional burden of more than 200kg.

Antares DLR H2

Antares DLR H2

When the coupling of the fuel cell powertrain system with the new routes were also begun. The fuel cell system was designed so that it directly with the engine control unit can be connected. The components and saves costs and increases efficiency. Therefore, both the Institute for vehicle concepts of the DLR as well as the Bern University of Applied Sciences Biel and the Long Aviation an important contribution. A subsequent hybridization with a lithium-polymer battery will power the aircraft continue to improve. The result is a high-tech makers of a variety of architectures of fuel cell systems can absorb. These can then be luftfahrtrelevanten conditions such as pressure, temperature, acceleration and vibration tested.

For the first flight at the end of this year, a fuel cell system in cooperation with the firm BASF Fuel Cell GmbH (electrolyte + electrodes) and Serenergy A / S (Stack Subsystem) for the airline upgraded. That was at the Institute of Technical Thermodynamics alongside overall system architecture design and build a whole range of temperature and pressure measurements.

With a specially designed control architecture Algorithm shows this is a very good weight / performance ratio, an important criterion for the airline. Upon completion of the first tests, which are aimed at a maximum altitude and thus a minimal negative pressure to reach the fuel cell system developed for maximum efficiency in converting fuel energy into electrical energy to guarantee. Now the entire fuel cell system used and the hydrogen tank weigh about 100 kilograms. Thus, only half of the additional burden exploited. This offers a high potential for the aircraft for possible flights record (height, width, etc.) compartment.

To make a comparison to be able to stand further fuel cell systems and architectures prepared to your airworthiness to be investigated.

20m/65 span, 6p.d
Wing area 12.6 m2/135ft2
The main body length of 7.4 m/24, 3f
POD length 2,87 m / 9.43 ft
POD diameter of 0.6 m / 1.97 ft
Curb weight around 460kg/1014 lb
Weight around 60kg fuel cell system
BZ operating system in flight <-45 ┬░ C to 40 ┬░ C
Maximum weight of 750kg DLR H2 (> 900kg in 4 POD version)
Range> 750km (> 2000km in 4 POD version)
Max fuel cell power system around 25kW (up to 45kW in 4 POD version)
Continuous power fuel cell system> 20kW
Max attainable height>> 3000m />> 10000ft
Max climb speed (560kg)> 2.5 m / s (with 25kW)

DC / DC Brushless
Maximum power> 42 kW
Rated 1500 1/min
Maximum speed 1,700 1/min
Max torque 216 Nm
Total Efficiency 90%

Antares DLR H2 Video (12.01 MB)

Posted under Fuel Cells, Hydrogen Vehicles

This post was written by admin on October 6, 2008

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Renault Scenic ZEV H2

Renault has very large projects in the electric vehicle, but he also sees further. In every sense, including that of having more autonomy through a fuel cell (CAP) powered by hydrogen. With a reservoir pressure of 350 bars, the autonomy of the Scenic ZEV H2 already reached 350 km, and although Renault has not done, it would be possible to put a reservoir to 700 bars of pressure, for bring to more than 500 km. The 350 bars nevertheless sufficient to validate the technology, more promising than any electric batteries, and with even more easily than Renault may not station outlet of hydrogen at 700 bars on its test centre. Renault Scenic ZEV H2

Renault Scenic ZEV H2The base used to develop these prototypes is well known is that the Grand Scenic. But there is a substantial difference between these protos hydrogen and a Scenic standard height. Renault has clearly not yet know-how Honda, which has launched production of the FCX Clarity, he had slightly (6 cm still) raise its Scenic to enable it to accommodate a technology for which he had, it is true, not been designed. There is also inlets different, a PAC to need more air an engine combustion, it has expanded those of Scenic.

But alongside this, to understand these differences, a surprising thing, a very small thing, the logo. The Scenic indeed, is Renault-Nissan badge. There are perhaps who remember the first prototype Renault PAC, a Laguna break at the end of the last century. It was conducted by the manufacturer french. While it is a collaborative effort of 2 marks Allied, which is not an evil, but emphasize that Nissan has provided the most important, namely the CAP and Lithium-Ion battery. Elements imagine that very close to those of Nissan FCV. Renault Scenic ZEV H2

Renault Scenic ZEV H2The architecture of the vehicle is divided into 3. It is under the hood the electric motor and transmission (one report, move forward or backward), accompanied by any power electronics that control the car, and an air compressor. The air is sent to the CAP, located in the center of the car, under the front passenger seat, which combines with hydrogen from a tank located under the floor of the trunk, near the battery. This architecture is not ideal. The solution Honda or GM, to use a large central console, to house elements, is definitely more skilled.

But these manufacturers have chosen to develop a dedicated architecture, where Renault has chosen to adapt the existing platform of Scenic. With this constraint, it has been fairly successful, since habitability is fully preserved. Only the trunk is somewhat reduced, by a raised floor. It is therefore aboard a Scenic normal, ie a well-designed car at the interior, albeit with a modified instrumentation, or more exactly appropriate.The revolution and the regime gives the electric motor, the gauge gasoline has become an indicator of pressure hydrogen, while the indicator energy is available on the navigation screen. Renault Scenic ZEV H2

Renault Scenic ZEV H2The electric motor has a power of 90 kW, which seems sufficient, but not exciting as long as this Scenic hydrogen is 300 kg heavier (!) That the diesel model series (dCi 130). It is 1850 kg on the scale, and much. It may still, of course, appreciate the flexibility unmatched electric motor, but with a top speed of 160 km / h and an acceleration of 0 to 100 km / h to 14 “65, there is no What complacency. It is true that there is no need for athletic performance to validate and test the technology and hydrogen CAP, but in competition, the GM Sequel goes from 0 to 100 km / h in under 10 seconds.

So if this prototype is a good effort on the part of the brand in diamond, which was late, it shows that Renault follows, but remains behind the leaders of hydrogen as GM, Honda or Toyota. To compensate, we look forward to the future electric Renault. The earlier, or Kangoo Express, had not been very successful.But that was partly due to the network, which had been unable (or unwilling) to make the necessary effort to promote them. With a strong commitment by Carlos Ghosn himself for future Renault and Nissan electric cars Series scheduled for 2010/2011, we do not have many doubts they are the best globally. Finally green rimera with Renault!

Posted under Fuel Cells, Hydrogen Cars, Hydrogen Vehicles

This post was written by admin on September 16, 2008

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