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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Tutaj zamieszczamy informacje na temat nowych technologii, nowinek technicznych oraz ciekawostek branżowych, związanych z misją grupy.
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Lignin as a fuel source

Lignin (see below picture) is a fibre-binding agent that is detrimental in paper production. The thermal value of lignin is about the same as coal and thus it can be used in place of coal in energy production. Bio-based lignin is a renewable fuel, the use of which in energy production supports sustainable development.

Fortum has launched lignin combustion tests in Stockholm at the Värtan power plant. Lignin is transported by train to the power plant near the Värtan harbour.

In the demonstration phase, the use of lignin instead of coal will reduce carbon dioxide missions from energy production by about 10,000 tons per year.

After the demonstration phase ending in 2009, the intention is to use lignin to produce electricity and heat for over 13,000 single family homes in Stockholm. This would reduce carbon dioxide emissions by about 100,000 tons per year.

http://fortum.com/dropdown_document.asp?path=14022...
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pozdr.czes;-)Tomasz Rzadki edytował(a) ten post dnia 11.11.07 o godzinie 23:30
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

A WaveRoller - AW - Energy

A WaveRoller device is a plate anchored on the sea bottom by its lower part. The back and forth movement of bottom waves moves the plate, and the kinetic energy produced is collected by a piston pump. This energy can be converted to electricity by a closed hydraulic system in combination with a hydraulic motor/generator system.

WaveRoller is a modular concept. In practice this means that the plant capacity is formed by connecting a number of production modules into a WaveRoller plant. Each module consists of 3-5 wave elements installed into a common generation system.

Due to the modular design, the WaveRoller plant can be taken into production gradually, module by module. Thus the scalability is good, and there is no technological upper limit for the plant capacity. Modules are also easily maintained and electricity production of the plant can continue also during module maintenance.

Economic considerations
Based on an estimated nominal power output of 13kW per individual WaveRoller plate, the investment cost amounts to approx. 3000 euros per kW already at the pilot stage. The targeted investment cost for the commercialization phase is between 800-1300 euros per kW and electricity generation cost between 30-50 euros per MWh.

http://aw-energy.com/page_1_2.html
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Archimedes Wave Swing or AWS, wave power generator

AWS technology

The AWS wave energy converter is a cylinder shaped buoy, moored to the seabed. Passing waves move an air-filled upper casing against a lower fixed cylinder, with up and down movement converted into electricity.

As a wave crest approaches, the water pressure on the top of the cylinder increases and the upper part or 'floater' compresses the gas within the cylinder to balance the pressures. The reverse happens as the wave trough passes and the cylinder expands. The relative movement between the floater and the lower part or silo is converted to electricity by means of a hydraulic system and motor-generator set.

The device is intrinsically simple with only one main moving part - the floater. Ancillary systems are limited and will use existing sub-sea technology and be capable of maintenance during rough weather using ROVs.

The concept has been proven at full-scale in 2004 via a pilot plant that was installed off the coast of Portugal. Engineering for a pre-commercial demonstrator is now ongoing.

http://awsocean.com/TE_291007_026.pdf
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

The Concentrated Solar Power Summit 5-6.11.07, Sevilla

COST REDUCTION on the basic components and materials: Find out where you can make savings that could transform the economics of a CSP project
SUNFALL MAXIMISATION: The essential of location, planning and maintenance to ensure your CSP plant achieves maximum ROI from solar energy “ plus what must be avoided at all costs
FASTER, LESS EXPENSIVE CONSTRUCTION: Â Key solutions, technologies and materials to the deployment of turbines, tubes, metal structures, heliostats, receivers, thermal oil and tracking mechanisms
MAXIMUM OPERATIONAL EFFICIENCY: The latest on thermal storage“ Including comparisons of molten salt, thermal oil and newly researched transmission fluids to identify the very latest
MASSIVELY INCREASED ROI WITH HYBRID SYSTEMS: 24/7 CSP plant power generation by using gas and biofuels to deliver power through the night“ and transform the bottom line
FINANCIAL RISK MANAGEMENT: Expert advice to help you reduce the perceived financial risks of CSP“ and make your projects more attractive to financial institutions and other investors

http://csptoday.com/eu/index.shtml
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pozdr.czes;-)Tomasz Rzadki edytował(a) ten post dnia 11.11.07 o godzinie 23:38
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

CSP - How it Works

Concentrating solar power plants produce electric power by converting the sun's energy into high-temperature heat using various mirror configurations. The heat is then channelled through a conventional generator. The plants consist of two parts: one that collects solar energy and converts it to heat, and another that converts heat energy to electricity.

Concentrating solar power systems can be sized for village power (10 kilowatts) or grid-connected applications (up to 100 megawatts). Some systems use thermal storage during cloudy periods or at night. Others can be combined with natural gas and the resulting hybrid power plants provide high-value, dispatchable power. These attributes, along with world record solar-to-electric conversion efficiencies, make concentrating solar power an attractive renewable energy option in the Southwest and other sunbelt regions worldwide. There are four CSP technologies being promoted internationally. For each of these, there exists various design variations or different configurations. The amount of power generated by a concentrating solar power plant depends on the amount of direct sunlight. Like concentrating photovoltaic concentrators, these technologies use only direct-beam sunlight, rather than diffuse solar radiation.

http://solarpaces.org/CSP_Technology/csp_technolog...
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Advances in photovoltaics: Ionic Liquids for new class of...

G24 Innovations Limited (G24i) and BASF have today (October 11th, 2007) announced a joint development agreement. The two companies will initiate a program to develop ionic liquids and formulations that further improve both performance and efficiency of G24i’s solar cells using a proprietary DYE SENSITIZED THIN-FILM technology.

The photovoltaic cells produced by G24i are sensitive to far more of the visible spectrum of light than conventional solar cells, so that all sorts of light sources can be used to generate power, even at relatively low levels of light intensity. The photovoltaic process used is roughly similar to photosynthesis in plants: a special ruthenium dye assumes the role of chlorophyll, turning light into electrical energy in a chemical process. Specifically adapted to the electrode and dye system, the ionic liquids are key to ensuring that the solar cell will generate power in a reliable and stable manner.

G24i’s DYE SENSITIZED THIN-FILM technology is based on solar cells originally developed by Dr. Michael Graetzel of the Swiss Institute of Technology (Ecole Polytechnique Fédérale de Lausanne (EPFL). Solar cells and products developed using this technology are lightweight, durable and ideal for integration or embedding into a wide range of products. G24i is developing solar products to power a range of portable electronics such as mobile telephones but also examines the use in smart textiles and building-integrated materials.

BASF is manufacturing ionic liquids - salts which are liquid below 100°C – that are suitable for use across a broad range of different applications ranging from processing chemicals and polymers, to engineering liquids like hydraulic liquids or lubricants, to uses in electro-chemistry.

http://g24i.com/news,g24-innovations-and-basf-sign...
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Taiwanese photovoltaic manufacturers forecast bright outl...

Oct 15, 2007
Wafer Works Corp. and Sino-American Silicon Products, Inc., both of which supply polycrystalline silicon to solar-cell makers, recently forecast at a photovoltaic forum in Taipei that their revenues to likely keep surging until 2010. Until last month, Sino-American and Wafer Works have seen their monthly revenue set new high for 26 and 19 consecutive months,
respectively.

Industry watchers estimated that exploding demands for polycrystalline silicon worldwide have driven up prices of the silicon material 29 folds over the past seven years and will likely maintain supply shortage of the material until 2010.

Sino-American's photovoltaic silicon business reported gross margin of around 35% last quarter alone, making it the best margin performer of its Taiwanese peers. Behind the shining margin is its partnership with Hemlock Semiconductor Corp. of the United States and MEM, both of which have steadily supplied it the materials.

For Wafer Works, the major momentums behind are Sumitomo of Japan investing in its mainland Chinese crystalline-growing venture Solargiga and its acquisition of claims to mine for silicon in Australia. Either event allows Wafer Works to secure adequate material supply.

Solar cell maker Motech Industries Inc. will boost output capacity by nearly 60% next year and is forecast to make NT$30 per share in the meantime. Its nearest rival at home E-Tone Solar Tech sets monthly revenue goal at NT$1 billion (US$30 million at US$1:NT$33) throughout current quarter, around 1.5 folds the monthly number it had early this year.

In the first three quarters this year, Motech had revenue totaling NT$10 billion (US$303 million), becoming first photovoltaic manufacturer in Taiwan to rake in NT$10 billion in revenue. Meanwhile, the company's net earnings topped NT$8.57 per share. Some institutional investors estimated the company will likely make NT$30 per share on projected revenue of NT$20 billion (US$606 million) next year.

Motech's executives pointed out that the company's cell output will increase to 280 megawatts next year and its output of crystalline silicon will rise to at least 100 megawatts next year from current 12 megawatts.

Some industry watchers estimated Motech's revenue and production output will likely increase 60%, respectively, throughout next year mostly thanks to profitable prices for solar cells. In the meantime, the company will be able to reduce costs by at least 20-30% on the materials it uses mostly because of its growing crystalline capability.

E-Tone plans to boost cell output to 150 megawatts in 2008 and has secured 80% of materials for the production. M.Setek of Japan is its major material supplier, filling half of its total demand. The Japanese supplier plans to ramp up output capacity to 50,000 metric tons in 2011 from current 100 metric tons.

http://emsnow.com/npps/story.cfm?pg=story&id=29577
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Hydrogen Storage Model Speeds Development Of Alternative ...

Science Daily — Researchers at the UCLA Henry Samueli School of Engineering and Applied Science have developed a model that could help engineers and scientists speed up the development of hydrogen-fueled vehicles by identifying promising hydrogen-storage materials and predicting favored thermodynamic chemical reactions through which hydrogen can be reversibly stored and extracted.

Because of global environmental changes associated with man-made carbon dioxide emissions and the limited resources of fossil fuels, developing alternate and renewable energy sources is important for a sustainable future. Hydrogen is a potential source of clean energy for future use in passenger vehicles powered by cheap and energy-efficient fuel cells, but its widespread adoption has been hindered by the need to store it on-board at very high densities.

A promising solution to this problem involves storing hydrogen within a material in the form of a chemically bound hydride, for example lithium hydride (LiH). Unfortunately, simple binary hydrides, in which hydrogen combines with light elements such as lithium, sodium, magnesium or others, do not adequately satisfy the requirements for on-board storage, as the hydrogen-yielding reaction requires heating the material to impractically high temperatures.

Because of this, researchers have turned to multicomponent hydride mixtures with higher volumetric and gravimetric densities, better operating temperatures and improved reaction rates for practical hydrogen storage. However, this flexibility comes at the price of drastically increased complexity associated with the large number of competing reactions and possible end-products other than hydrogen.

Thus, predicting desirable hydrogen storage with multicomponent mixtures has proved difficult. For example, the recently studied lithium hydride compound Li4BN3H10 was found to have as many as 17 hydrogen-release reactions, of which only three were found to be feasible — and none were in the desired range of temperatures and hydrogen pressures for practical on-board storage in hydrogen-powered vehicles.

The research team used modern quantum mechanical theories and high-powered computers to develop an algorithm that can automatically and systematically pinpoint phases and reactions that have the most favored thermodynamic properties — that is, those that can release hydrogen at ambient temperatures using the waste heat from a proton exchange membrane (PEM) fuel cell. The team tested the method on the well-studied Lithium-Magnesium-Nitrogen-Hydrogen system, predicting all experimentally observed pathways in the system. The researchers say this method can also be applied to other multicomponent hydrogen systems.

The new method, published in Advanced Materials, was developed by Alireza Akbarzadeh, a UCLA postdoctoral researcher in the department of materials science and engineering; Vidvuds Ozolins, UCLA associate professor of materials science and engineering; and Christopher Wolverton, professor of materials science and engineering at Northwestern University in Illinois.

"The development of an algorithm that goes beyond chemical intuition and finds all hydrogen storage reactions 'in silico' is crucial and will help the scientific and engineering community to develop revolutionary new hydrogen-storage materials," Akbarzadeh said. "This is a major achievement in the field, which can boost up the search for the best reversible solid-state hydrogen storage."

"We are steadily approaching the moment when we will be able to theoretically design materials with desired properties, just like a tailor makes a suit to fit the customer's needs," Ozolins said. "This will bring in a qualitatively new era of collaboration between theory and computation, experiment and technology development."

The research was funded by grants from the U.S. Department of Energy.

Note: This story has been adapted from material provided by University of California, Los Angeles.

http://sciencedaily.com/releases/2007/10/071003100...
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

New Nissan's Pivo concept car can drive sideways too

Japan's auto giant Nissan unveils the new robotic vehicle "Pivo 2," equipped with in-wheel electric motors to drive all wheels independently and to pivot its cabin, at the company's headquarters in Tokyo.

http://physorg.com/news110786451.html
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

H2CAR

In a recent study, scientists have demonstrated that a hybrid system of hydrogen and carbon can produce a sufficient amount of liquid hydrocarbon fuels to power the entire U.S. transportation sector. Using biomass to produce the carbon, and solar energy to produce hydrogen, the process requires only a fraction of the land area needed by other proposed methods.

http://physorg.com/news96631073.html
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Elektryczne auto - Tesla - Roadster

In an all-electric car, high performance batteries store cleaner, cheaper, domestically produced electricity, and an electric motor provides propulsion with zero emissions. In a plug-in hybrid, more batteries than a conventional hybrid allow local all-electric, zero-emission driving with a gasoline engine for longer distances.

Electric cars are very reliable. No oil changes, no tune ups. EVs have fewer than 1/10th as many parts as a gas car. There's no engine, transmission, spark plugs, valves, fuel tank, tailpipe, distributor, starter, clutch, muffler or catalytic converter.

The best way to reduce carbon emissions is to utilize the ever cleaner, greener, more renewable grid to power transportation. Only grid-rechargeable cars can attain the end goal of zero-emissions and ensure fuel price stability.

http://pluginamerica.com/whyev.shtml

Ciekawa strona...
pl.youtube.com/watch?v=hOl_1S10jTk
pl.youtube.com/watch?v=kRd7ER7u-KU

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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

The Blue Energy Ocean Turbine

The Blue Energy Ocean Turbine acts as a highly efficient underwater vertical-axis windmill. Sea water is 832 times denser than air and a non-compressible medium, an 8 knot tidal current is the equivalent of a 390 km/hr wind. Developed by veteran aerospace engineer Barry Davis, the vertical-axis turbine represents two decades of Canadian research and development.
bluenergy.com/technology.html
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pozdr.czes;-)Tomasz Rzadki edytował(a) ten post dnia 12.11.07 o godzinie 00:36
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Solar Tower Technology

Air is heated by solar radiation under a low circular glass roof open at the periphery; this and the natural ground below it form a hot air collector. In the middle of the roof is a vertical tower with large air inlets at its base. The joint between the roof and the tower base is airtight. As hot air is lighter than cold air it rises up through the chimney. Suction from the tower then draws in more hot air from the collector, and cold air flows in from the outer perimeter. The solar radiation is responsible for causing a constant up-draught in the tower. The energy created through this process is converted into mechanical energy by the rising air passing through the pressure-staged wind turbines at the base of the tower, and into electrical energy by conventional generators.

http://solarmissiontechnologies.com/project_techno...
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Electricity from hot water? Absolutely!

The hydride heat engine is comprised of solar hot water panels, a fan cooler or radiator, a hydride-based hydrogen compressor and a hydraulic motor-generator set. The solar panels produce hot water using energy from the sun. The most economical use of solar energy is making hot water and flat plate solar collectors have been available for more than thirty years. The hot water is pumped to the hydrogen compressor, which is the heart of the system; it converts the thermal energy in hot water into work energy by compressing a gas. The compressed gas is expanded in a hydraulic motor-generator set that produces electricity, after which it returns to the compressor.

http://ergenics.com/page27.htm
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pozdr.czes;-)Tomasz Rzadki edytował(a) ten post dnia 12.11.07 o godzinie 00:35
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Kazimierz Holubowicz, gun-engine

Independent inventor proposed a hydrogen fueled gun-engine to increase engine efficiency significantly. The proposed gun engine also offers fuel flexibility ranging from gasoline, natural gas as well as hydrogen.

http://fair-pr.com/hydrogenambassadors/images/holu...
http://fair-pr.com/hydrogenambassadors/team-canada...
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

Earthrace

Earthrace is a 78 foot alternative fuel powered wave-piercing trimaran; part of a project to break the world record for circumnavigating the globe in a powerboat—and to do so using only renewable fuels.

http://earthrace.net/index.php?section=1
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Czesław M.

The Ocean Hydro Electricity Generator Plant

The O.H.E.G. plant is a revolutionary concept, using tidal energy, designed by FreeFlow 69. The plant uses tidal energy to create electricity 24 hours a day, making this a unique project. 24 hour power is produced by using both the kinetic energy in tidal flow and the potential energy created by tidal height changes. The O.H.E.G. plant is completely independent of the wind farm; however it does make an ideal foundation for offshore wind turbines, combining both tidal energy and wind energy. The O.H.E.G. plant is not detrimental to the surrounding environment or ecosystem and due to its offshore location it will not be visually offensive. Currently the project is on hold awaiting funding.

http://freeflow69.com/
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Driving Hybrid Technologies - Further, Faster, Greener

Ultra Fuel-Efficient & Environmentally friendly Technologies
Revolutionary Improvements in Vehicle Fuel Economy
Increased Horse Power and Transfer of Torque Over Conventional Vehicles
Highest Efficiency Hybrid Vehicle Architecture
Moving Economies Toward Energy Independence

Features:
PHEVs use grid (wall) power to fully recharge batteries instead of expensive and polluting gasoline
PHEVs run on batteries alone for some distance and then use gasoline to maintain battery levels
Most commuters will be able to run in battery only mode for their daily driving - NO gasoline required. Average drivers can easily attain well over 100 miles per gallon today.
"Charge depleting" PHEVs are more economical and cleaner than "charge sustaining" PHEVs
PHEVs become even more efficient when combined with a continuously variable transmission (CVT)
EDI's power optimization software applications and algorithms provide the most efficient method for managing hybrid vehicle architectures—gas, electrical, hydrogen, and CVT power combinations.

http://efficientdrivetrains.com/st.html
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Temat: CIEKAWOSTKI, NOWINKI TECHNOLOGICZNE

Solar Tent
Iowa Thin Film Technologies, Inc., has completed the development of integrated solar technology for three Army tent prototypes. The tents integrate the company's PowerFilm® flexible solar panels directly with the tent fabric. Iowa Thin Film Technologies says that it is the only company in the world that has developed this fabric integration solar technology.

"Iowa Thin Film Technologies has developed a new fabric integrated solar technology for field shelters that will advance the Army's goal of reducing dependence on fuel-fired power generation and reducing logistics footprint," said Jean Hampel, Project Engineer of the Fabric Structures Group, U.S. Army Soldier Systems Center, at Natick, Massachusetts.

http://www.solarbuzz.com/News/NewsNAPT78.htm
http://www.powerfilmsolar.com/products/military/armyte...
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