The Tablet PC HP 484170-001 market for the Google Android operating system is not friendly enough. Last year, consumers are more likely to respond with the Apple iPad Tablet PC. Samsung Galaxy Tab (microblogging) can on Dell (microblogging), Streak, and many similar devices Android just gather dust on a shelf. Of course, some people think that this situation will certainly change. To prove this point, researchers and analysts have pointed out, Android in the smartphone market is relatively slow, but ultimately still a dominant share.
But so far, Android has failed on the Tablet PC hp pavilion dv4 battery. Although this system is probably the one hand on the ground, but the probability of obtaining a dominant position is not great. Not only the current situation in perspective, the market Android tablet computer "from them." They are the following reasons:
1, the lack of security
Although some consumers identify security issues Android will not, but for business users is a particular concern. So with the iPad and Windows 8 in the enterprise market, Android will be left behind. At the time, the penetration rate of the system have profound negative effects.
2, the consistent position of the iPad
iPad is a Tablet PC market of the king. Some researchers believe that this product will ultimately be forced by competitive pressures and performance. But they are wrong, iPad won the favor of users, this trend will continue in the coming years. Leadership Android Tablet PC HP Pavilion dv7 battery on the iPad would not be a problem.
3, iOS useful
Android is a good operating system, but it is not yet iOS. higher sales of iPad explains the problem. IOS Easy to use and does not respond to security problems, its function is also unsurpassed. Android mobile platform in many ways behind iOS. In all this, before it is changed, Android will be jealous, envious.
4, Windows 8, with the same strategy
Although the focus was on the Tablet PC Sony VGP-BPS13/Q Battery, Apple and Google, but can not be overlooked, Windows 8 will be added to the competition in the past. Wait until the system is released, it will be a major influence on Android. Like Google, Microsoft (microblogging) and the main supplier of the operating system, the two companies have formed a confrontation leads provided. Given the success of the past history of Windows, Android, Microsoft pays attention to such a challenge.
5, the producers are looking forward to Windows 8
Speaking of Microsoft's mobile strategy, we must mention another point: Many vendors have plans to start on a good show for Microsoft Windows 8 tablets. In fact, Hewlett-Packard (microblogging), Dell and Asus have made it clear that the intention. The coming months are more companies, the same strategy. If this tendency to form, Google will have to consider whether companies are ready to produce both Windows and Android Tablet PC for maintenance of the eighth company is unlikely to think, especially if the sale of Windows 8 Android Tablet PC Sony VGP-BPS9 Battery over time.
6, the sales speak for themselves
Tablet PC sales worldwide this year, millions of units and sellers think they are Apple. But with sales of Android Apple, small in comparison. If Microsoft on the market next year, the situation is even worse. Although Google has its own rhetoric, but less than expected sales of Tablet PC Sony VGP-BPS13 Battery manufacturers are still Android is pretty nervous.
7, the success of smart phones is not the problem description
Just because Android in the smartphone market success, simply press the system to enter the Tablet PC to excellence. Smartphone and Tablet PC users are very different. It seems that there is apparently little interest in Android. Of course, this may change, but only because Android is the winner in the smartphone market, to be successful, is absurd on the Tablet PC market.
8 consumer confusion,
Google also offers a number of different versions of the Android system, this decision is very bad. In addition, the company also allow manufacturers to customize the operating system, but in the Tablet PC Compaq Presario CQ61 has become a disadvantage. The success is largely due to the user iPad iOS, what features to offer. However, smartphone users lost in the system with gingerbread, but it is in the air, Tablet PC. Google is a big mistake in the strategy, and much of its effect.
9, is the pain Android tablet
Android manufacturers start innovation? Looking around the market of today's market flooded with low quality. Dell is a typical example, launched the first business, a 5-inch Streak and later released a 7-inch product, but without success. Although Samsung is widely regarded as the most iPad rival, but the design of the Galaxy Tab is an obvious imitation of marks. Innovation in sales before Android is, the system remains in the minds of consumers as the role of second-rate products.
10, seems indifferent to Google
Finally, look at Google. Google is not in doubt Tablet PC market to be successful, but for various reasons, it does not seem ready to assist manufacturers. The performance of the honeycomb mess. Although the use of Nexus in the smartphone market has helped many companies, but not the use of Google in the Tablet PC Dell Latitude 2110 Battery of the same strategy, but has focused on cell phones. Google the term, is the importance of the Tablet PC display, if Android is not excluded from the competition.
With the power of electronic technology, many applications require high power, high current.
It is the reduction of the control magnetic confinement fusion energy DC is a fast high-current power supply, the technical requirements: response time of 1 ms 50V peak voltage, maximum current of 20 kA, the achievement of the four quadrants. This requirement must necessarily reduce the energy consumption in parallel tubes in parallel with the technology and the HP Pavilion DV6 batteries power supply, or in parallel.
Parallel continuous current is 20 kA, with IGBT-tube, each arm of the bridge at least 15 tubes in parallel, because they are fighting not only by the driver, and generally a higher current carrying capacity of the power of the tubes is Also important, the actual voltage of 50V, in the case, the ability to supply voltage tubes a great loss. Therefore, the proposal to use the structure of power DC / DC ruled in parallel with the technical ideas.
Parallel system of power fundamental requirements:
1) Enter the disruption or alteration of concern for the stability of output voltage;
2) The FM module. Otherwise, the result of the pulse signal output of the low frequency components, increasing the ripple current transformers and voltage;
3) control the flow of each module to share the load current.
High-Power DC-topology
DC / DC topology there are two parallel bus structure uses the DC input, the system including a transformer, rectifier diodes and uncontrolled rectifier circuit, N path DC / DC circuit pump blood oppression, the 'Another is using a parallel system architecture independent AC-DC/DC-energie .
With the topology, the system does not need large capacity of the transformer rectifier DC setting can be used, in general, pass through the rectifier diodes and filter capacitors. Although this structure can be connected in parallel to ensure that each office in order to avoid a separate input HP Pavilion DV4 battery voltage to an imbalance in parallel with the branch input voltage more, but the current ability to maintain performance up to 20 kA, DC overload, pre-AC-DC devices are higher, not easy to achieve. In addition, access to the common bus is not sufficient to reach the full significance of the independent power modules in parallel. Therefore, as shown in Figure 1b AC-DC/DC current use of the parallel topology.
Topology shown in Figure 1b, the independence of each power module to ensure AC-DC/DC shown, the DC are executed in parallel, depending on the actual voltage, current needs and to increase the power of freedom and reduce the number modules! In practice, there is not enough space, have a value for the search. However, this topology has two faces! If the output voltage of the transformer, which is different, each rectifier output voltage is different, so that the significant imbalance rectifier output.
But to eliminate this imbalance, the following first steps, in parallel with a separate SONY VGP-BPS13 batteries power supply AC-DC/DC, you should try to complete each module AC-DC/DC output voltage of the second equality, another brand of output voltage transformer rectifier connected to an imbalance in the power module measures binding DC / DC down. DC / DC module uses a limited number of unipolar pulse width modulation (PDW), the duty of the DC / DC load balancing. When the power switch of positive and negative constant current in a different quadrant of the race, the four quadrants of the system must be done.
2 High-DC-tax
Fast power control in the tokamak applications require real-time monitoring the supply curve of output current at constant current. Therefore, the energy system is servo-current system is the rapid nature of the system of key performance indicators. The operation of the election will affect the overall performance of static and dynamic system.
Further improve the system steady state accuracy and dynamic range for the current to the adoption of two current control, the total current cycle and the current loop can be followed by another module, not only to improve performance, and is the current form.
The main function of the outer ring is to achieve the current real-time monitoring with feedback and feedforward composites. Composed of pilot control has no influence on the stability of the original. But it can not increase the open loop gain of a significant increase in the steady state accuracy and dynamic. For a control. Without the feed-forward structure of the channel is complicated. Feedforward of the input signal of control used is a derivative, and is added to the input signal. In the main loop current characteristics of the module are as follows.
1) the conversion of the transfer function of the Control object.
2) limiting the maximum output current, while the realization of the power modules are booming.
3 Topology data
Moving the vertical alignment of the power control of the plasma is the average speed of devices in parallel, a serious problem. Computer and data processing power of the master-slave module sends is the CPU load of each power of control is present, the HP 484170-001 computer information to control the power module, the computer screen is part of the power of central government, including the authority should be sent to all the controls to start and stop. Conduct a power signal, the acquisition of any current production, the total, utilities and power supply , temperature fuse failure and other physical variables such as control of access. At the same time,a control module of the computer and EAST total plant capacity for communication, a wide range of automated data reports, the following report. The form is automatically removed and other jobs. Monitoring the processing power for each module, the same steady stream of them! The current loop in the regulation of food intake by the microcontroller programming software enabling it to achieve the same output current of charge! For the most current results.
4 Conclusion
For SONY VGP-BPS8 battery power control of the tokamak as fast, and its large capacity, and select the current track requires a high performance, the use of several independent modules of small and medium power in parallel to meet the occasion, the needs of total capacity requirements. Multiple power supplies connected in parallel is an important issue for the current sharing between modules. The use of intelligent power modules and systems for automatic control theory, power component of the module in a closed circuit monitoring! Control Act rather than hardware to achieve the current division between the modules. This system will also be trained to meet the needs of fast power control to respond faster than the previous monitoring. Therefore, this project can be achieved. The key to the following conditions:
1) the strength and single-chip parallel system used in embedded applications in the smart device, so much to improve the consistency of the FM. The low output voltage ripple! To overcome the traditional methods is difficult to ensure consistency of the shortcomings of the modulation frequency of the module.
2) the use ofPWMDC/ DC part of a rapid response;
3) Based on control theory is followed, the current in the material flow are some ideas to the current division between the modules, control of the computer, the CPU module sends the same for all the latest data. The static current modules share power supply hp dv7 battery.
Requiring high power at times. This system has good prospects for the application. Digital control of power systems in line with the trend.
It is the reduction of the control magnetic confinement fusion energy DC is a fast high-current power supply, the technical requirements: response time of 1 ms 50V peak voltage, maximum current of 20 kA, the achievement of the four quadrants. This requirement must necessarily reduce the energy consumption in parallel tubes in parallel with the technology and the HP Pavilion DV6 batteries power supply, or in parallel.
Parallel continuous current is 20 kA, with IGBT-tube, each arm of the bridge at least 15 tubes in parallel, because they are fighting not only by the driver, and generally a higher current carrying capacity of the power of the tubes is Also important, the actual voltage of 50V, in the case, the ability to supply voltage tubes a great loss. Therefore, the proposal to use the structure of power DC / DC ruled in parallel with the technical ideas.
Parallel system of power fundamental requirements:
1) Enter the disruption or alteration of concern for the stability of output voltage;
2) The FM module. Otherwise, the result of the pulse signal output of the low frequency components, increasing the ripple current transformers and voltage;
3) control the flow of each module to share the load current.
High-Power DC-topology
DC / DC topology there are two parallel bus structure uses the DC input, the system including a transformer, rectifier diodes and uncontrolled rectifier circuit, N path DC / DC circuit pump blood oppression, the 'Another is using a parallel system architecture independent AC-DC/DC-energie .
With the topology, the system does not need large capacity of the transformer rectifier DC setting can be used, in general, pass through the rectifier diodes and filter capacitors. Although this structure can be connected in parallel to ensure that each office in order to avoid a separate input HP Pavilion DV4 battery voltage to an imbalance in parallel with the branch input voltage more, but the current ability to maintain performance up to 20 kA, DC overload, pre-AC-DC devices are higher, not easy to achieve. In addition, access to the common bus is not sufficient to reach the full significance of the independent power modules in parallel. Therefore, as shown in Figure 1b AC-DC/DC current use of the parallel topology.
Topology shown in Figure 1b, the independence of each power module to ensure AC-DC/DC shown, the DC are executed in parallel, depending on the actual voltage, current needs and to increase the power of freedom and reduce the number modules! In practice, there is not enough space, have a value for the search. However, this topology has two faces! If the output voltage of the transformer, which is different, each rectifier output voltage is different, so that the significant imbalance rectifier output.
But to eliminate this imbalance, the following first steps, in parallel with a separate SONY VGP-BPS13 batteries power supply AC-DC/DC, you should try to complete each module AC-DC/DC output voltage of the second equality, another brand of output voltage transformer rectifier connected to an imbalance in the power module measures binding DC / DC down. DC / DC module uses a limited number of unipolar pulse width modulation (PDW), the duty of the DC / DC load balancing. When the power switch of positive and negative constant current in a different quadrant of the race, the four quadrants of the system must be done.
2 High-DC-tax
Fast power control in the tokamak applications require real-time monitoring the supply curve of output current at constant current. Therefore, the energy system is servo-current system is the rapid nature of the system of key performance indicators. The operation of the election will affect the overall performance of static and dynamic system.
Further improve the system steady state accuracy and dynamic range for the current to the adoption of two current control, the total current cycle and the current loop can be followed by another module, not only to improve performance, and is the current form.
The main function of the outer ring is to achieve the current real-time monitoring with feedback and feedforward composites. Composed of pilot control has no influence on the stability of the original. But it can not increase the open loop gain of a significant increase in the steady state accuracy and dynamic. For a control. Without the feed-forward structure of the channel is complicated. Feedforward of the input signal of control used is a derivative, and is added to the input signal. In the main loop current characteristics of the module are as follows.
1) the conversion of the transfer function of the Control object.
2) limiting the maximum output current, while the realization of the power modules are booming.
3 Topology data
Moving the vertical alignment of the power control of the plasma is the average speed of devices in parallel, a serious problem. Computer and data processing power of the master-slave module sends is the CPU load of each power of control is present, the HP 484170-001 computer information to control the power module, the computer screen is part of the power of central government, including the authority should be sent to all the controls to start and stop. Conduct a power signal, the acquisition of any current production, the total, utilities and power supply , temperature fuse failure and other physical variables such as control of access. At the same time,a control module of the computer and EAST total plant capacity for communication, a wide range of automated data reports, the following report. The form is automatically removed and other jobs. Monitoring the processing power for each module, the same steady stream of them! The current loop in the regulation of food intake by the microcontroller programming software enabling it to achieve the same output current of charge! For the most current results.
4 Conclusion
For SONY VGP-BPS8 battery power control of the tokamak as fast, and its large capacity, and select the current track requires a high performance, the use of several independent modules of small and medium power in parallel to meet the occasion, the needs of total capacity requirements. Multiple power supplies connected in parallel is an important issue for the current sharing between modules. The use of intelligent power modules and systems for automatic control theory, power component of the module in a closed circuit monitoring! Control Act rather than hardware to achieve the current division between the modules. This system will also be trained to meet the needs of fast power control to respond faster than the previous monitoring. Therefore, this project can be achieved. The key to the following conditions:
1) the strength and single-chip parallel system used in embedded applications in the smart device, so much to improve the consistency of the FM. The low output voltage ripple! To overcome the traditional methods is difficult to ensure consistency of the shortcomings of the modulation frequency of the module.
2) the use ofPWMDC/ DC part of a rapid response;
3) Based on control theory is followed, the current in the material flow are some ideas to the current division between the modules, control of the computer, the CPU module sends the same for all the latest data. The static current modules share power supply hp dv7 battery.
Requiring high power at times. This system has good prospects for the application. Digital control of power systems in line with the trend.
The fuel cell produces electricity and heat directly from the chemical energy of hydrogen and oxygen. This new technology for local production of electricity can be considered cogeneration1.Cette new system of converting HP pavilion dv7 Battery chemical energy into electrical energy without combustion, directly or In the production of mechanical energy, unlike other conventional systems that use gas turbines or cogeneration engines.
• What are the applications?
Fuel cells are small plants, which are installed closer to the customer. They are designed primarily for electricity and heat or cold, industrial, services (hospitals, shopping centers, hotels ...) and the residential area.
How does it work?
The continu2 current of these batteries is the principle of a battery (Dell Studio 14 Battery electrochemical reactions) resulting from the use of hydrogen and oxygen and then converted into an electric current alternatif2. Hydrogen can be obtained in pure form or in a chemical reactor, a so-called reformers for the conversion of hydrogen fuel: natural gas, methanol, gasoline, etc.. To this end, the benefits of natural gas abundance and cleanliness. Oxygen, in turn, is obtained from the air.
• If this principle was discovered?
The principle of fuel cells was discovered in 1839 by William Grove, a British lawyer fascinated by physics. This technique is used in the sixties by the army U. S. for submarines and space capsules Gemini and Apollo programs rest. To date, the high cost of necessary materials prevented other Dell 312-0748 Battery potential applications. Progress in this area in recent years, however, to verify that the emergence of a wider market within ten years.
Advantages of fuel cells
Fuel cells produce electricity and heat with a local high YIELDS1. Clean and quiet, are particularly well on the urban context, where environmental conditions are suitable for the largest.
• Protection of air
A fuel cell running on pure hydrogen or natural gas, or reject
Sulfur oxides (SOx), hydrogen particule.Lorsque obtained from the conversion of natural gas, a fuel cell emits only 6 mg of carbon per m3 of gas is 17 times lower than the national legislation is necessary française2 2 mg of NOx per m3 75 times less gas than Dell 312-0818 Battery carbon dioxide (CO2) under 30% of that of a diesel generator.
• Energy savings
Fuel cells can produce electricity continuously. Their
Yields are high, or electricity currently exceeds 40% and 70% for solid oxide fuel cell downstream gas turbine (see table on page 6: Different types of batteries) or related to the overall efficiency (electricity, heat) for about 80%.
Fuel cells contributes to energy savings.
• Noise Reduction
The electrochemical batteries noise process. Only the auxiliary systems (Ventilation and circulation) produce low noise, well below the other generators. For a fuel cell as Chelles,the noise level to 10 meters is comparable to a traditional fan (At 62 decibels). In Chelmsford there, do not disturb people Noise on the battery is installed in a building.
The different types of fuel cells
There are four types of batteries according to electrolyte1:
• fuel cell type PAFC (phosphoric acid fuel cell) technology at a low temperature (200 ° C): about 200 units are now all over the world (including 20 in Europe) is installed. It is a staple of this type of EDF and Gaz de France in early 2000 were found to Chelles.
• Type of Latitude E6510 Battery cell PEMFC (Proton Exchange Membrane Cell) technology, low temperature (80-120 ° C) developed these techniques to date a. Technological advances and the expected cost less, was the first industrial plant in operation at the 2005th
• Fuel Cells (SOFC solid oxide fuel cell) technology, high temperature (1000 ° C) with the electrical efficiency is very high. Technological advances and the expected cost less, was the first industrial plant in service between 2005 and 2010.
• the type of fuel cell MCFC (Molten Carbonate Fuel Cell) technology, high temperature (650 ° C): problems of delay in the development of their appearance. Each cell type corresponds to separate terms of use and applications in the table on the next page list.
The EDF Group is preparing for the introduction of fuel cells
The EDF Group is preparing for the introduction of the cell
Fuel
Fuel cells offer interesting perspectives for the energy and environmental efficiency. For the benefit of customers, EDF is now preparing to create a market for fuel cell 5 to 10 years. Two areas of possible applications are designed in particular:
• the Dell Vostro 1088 Battery voltage is too low or medium (less than 300 kW) for applications in commercial and residential cogeneration;
• The batteries of high power (500 kW electrical few MW) power generation (including systems for hybrid fuel cell coupled to a turbine to improve electrical efficiency). EDF works with leading international research organizations (Electric Power Research Institute, USA) and the main actors in the field of fuel cells.
EDF is one of the committees or European and international institutions (including the International Energy Agency) and contribute to European research programs on mobile combustible.La EDF R & D of fuel cell consists two
Areas: applied research and demonstration.
• Some examples of applied research:
EDF ® is a project to develop new membranes for PEM fuel cell development at high temperature (Proton Exchange Membrane Fuel Cell) development. The desired temperature is about 150 ° C. This temperature allows for efficient use of heat and simplify the fuel system. This project is part of the network technology of French research.
EDF ® is leading a project to develop new materials for SOFC (cell solid oxide fuel) to expand the operating temperature to decrease. The desired temperature is about 750 ° C. This temperature is well below the normal operating temperature of SOFC (1000 ° C) allows the use of less expensive materials, including the extra battery（Dell JD606 Battery）. This project is also part of the network of French technological research.
EDF ® laboratory performance of the cell membranes and PEMFC and SOFC fuel cell technology. These tests are performed on one of the research and development by EDF, the site of Renardières, near Fontainebleau.
• From now on events in the City:
EDF ® Asus Eee PC 1005ha-eu1x has been installed and is working with Gaz de France, was the first fuel cell medium is removed in urban areas in France (Chelles, Seine-et-Marne). This battery technology PAFC (phosphoric acid fuel cells) and 200 kilowatts of electricity use during the winter of 2000. The engineering firm Industelec Ile-de-France and Sechaud & Metz, which are both controlled by EDF, wins control of the practice of development and construction ow
Installation of the battery.
® EDF is to test a PEMFC stack with an output of 250 kilowatts of power involved in Berlin, as part of a European project led by German power company Bewag.
This Asus Eee PC 1005ha-e Battery is in the first half of 2000 in operation. ® EDF and Gaz de France are preparing for a demonstration project of a stack of average power in the province of Lorraine Forbach.
EnBW ® (German electricity), with EDF and Gaz de France and TIWAG combined (Austrian electrician) in January 2000, the European Commission for a proposed major event of a battery of a combined micro-MWe supports. If this project continues, the battery is in use since 2003.
Appendix 1: Principle of electrochemical hydrogen pileb is sent in the middle of the stack is a stack of elementary cells (electrochemical cells, each with a electrolyte2 anode1 and cathode3), where the reverse reaction takes place in the water4 electrolysis. In this, the hydrogen and the reactions Oxygen combine to form water electrochemical reactions and diffusion electrons5, electricity in HP elitebook 2530p batteries continu.Ô called "low temperature" hydrogen is oxidized at the anode of the electron is in the middle and protons6 dismantled. The protons pass through the electrolyte and can be found on the cathode. The imbalance of electrons produces a positive pole and negative pole, from which the electrons move to produce electricity. Parallel to the cathode, protons and electrons react with oxygen and water, a byproduct of this chemical reaction.
In Dell Inspiron 9400 batteries called "high temperature", oxygen is separated from the cathode-O2 and movement through the electrolyte and water formed on the anode. O To be effective, these electrochemical reactions accelerated by catalysts. They also produce heat.
Appendix 2: Operating principle of a fuel cell world
Hydrogen is obtained by converting natural gas into a chemical reactor, the so-called reformers. Oxygen, in turn, is obtained from the air. Ah, the DC battery produces the same principles of a battery (electrochemical reactions) the use of hydrogen and oxygen and is then converted to alternating current in a electrical transformers.
• What are the applications?
Fuel cells are small plants, which are installed closer to the customer. They are designed primarily for electricity and heat or cold, industrial, services (hospitals, shopping centers, hotels ...) and the residential area.
How does it work?
The continu2 current of these batteries is the principle of a battery (Dell Studio 14 Battery electrochemical reactions) resulting from the use of hydrogen and oxygen and then converted into an electric current alternatif2. Hydrogen can be obtained in pure form or in a chemical reactor, a so-called reformers for the conversion of hydrogen fuel: natural gas, methanol, gasoline, etc.. To this end, the benefits of natural gas abundance and cleanliness. Oxygen, in turn, is obtained from the air.
• If this principle was discovered?
The principle of fuel cells was discovered in 1839 by William Grove, a British lawyer fascinated by physics. This technique is used in the sixties by the army U. S. for submarines and space capsules Gemini and Apollo programs rest. To date, the high cost of necessary materials prevented other Dell 312-0748 Battery potential applications. Progress in this area in recent years, however, to verify that the emergence of a wider market within ten years.
Advantages of fuel cells
Fuel cells produce electricity and heat with a local high YIELDS1. Clean and quiet, are particularly well on the urban context, where environmental conditions are suitable for the largest.
• Protection of air
A fuel cell running on pure hydrogen or natural gas, or reject
Sulfur oxides (SOx), hydrogen particule.Lorsque obtained from the conversion of natural gas, a fuel cell emits only 6 mg of carbon per m3 of gas is 17 times lower than the national legislation is necessary française2 2 mg of NOx per m3 75 times less gas than Dell 312-0818 Battery carbon dioxide (CO2) under 30% of that of a diesel generator.
• Energy savings
Fuel cells can produce electricity continuously. Their
Yields are high, or electricity currently exceeds 40% and 70% for solid oxide fuel cell downstream gas turbine (see table on page 6: Different types of batteries) or related to the overall efficiency (electricity, heat) for about 80%.
Fuel cells contributes to energy savings.
• Noise Reduction
The electrochemical batteries noise process. Only the auxiliary systems (Ventilation and circulation) produce low noise, well below the other generators. For a fuel cell as Chelles,the noise level to 10 meters is comparable to a traditional fan (At 62 decibels). In Chelmsford there, do not disturb people Noise on the battery is installed in a building.
The different types of fuel cells
There are four types of batteries according to electrolyte1:
• fuel cell type PAFC (phosphoric acid fuel cell) technology at a low temperature (200 ° C): about 200 units are now all over the world (including 20 in Europe) is installed. It is a staple of this type of EDF and Gaz de France in early 2000 were found to Chelles.
• Type of Latitude E6510 Battery cell PEMFC (Proton Exchange Membrane Cell) technology, low temperature (80-120 ° C) developed these techniques to date a. Technological advances and the expected cost less, was the first industrial plant in operation at the 2005th
• Fuel Cells (SOFC solid oxide fuel cell) technology, high temperature (1000 ° C) with the electrical efficiency is very high. Technological advances and the expected cost less, was the first industrial plant in service between 2005 and 2010.
• the type of fuel cell MCFC (Molten Carbonate Fuel Cell) technology, high temperature (650 ° C): problems of delay in the development of their appearance. Each cell type corresponds to separate terms of use and applications in the table on the next page list.
The EDF Group is preparing for the introduction of fuel cells
The EDF Group is preparing for the introduction of the cell
Fuel
Fuel cells offer interesting perspectives for the energy and environmental efficiency. For the benefit of customers, EDF is now preparing to create a market for fuel cell 5 to 10 years. Two areas of possible applications are designed in particular:
• the Dell Vostro 1088 Battery voltage is too low or medium (less than 300 kW) for applications in commercial and residential cogeneration;
• The batteries of high power (500 kW electrical few MW) power generation (including systems for hybrid fuel cell coupled to a turbine to improve electrical efficiency). EDF works with leading international research organizations (Electric Power Research Institute, USA) and the main actors in the field of fuel cells.
EDF is one of the committees or European and international institutions (including the International Energy Agency) and contribute to European research programs on mobile combustible.La EDF R & D of fuel cell consists two
Areas: applied research and demonstration.
• Some examples of applied research:
EDF ® is a project to develop new membranes for PEM fuel cell development at high temperature (Proton Exchange Membrane Fuel Cell) development. The desired temperature is about 150 ° C. This temperature allows for efficient use of heat and simplify the fuel system. This project is part of the network technology of French research.
EDF ® is leading a project to develop new materials for SOFC (cell solid oxide fuel) to expand the operating temperature to decrease. The desired temperature is about 750 ° C. This temperature is well below the normal operating temperature of SOFC (1000 ° C) allows the use of less expensive materials, including the extra battery（Dell JD606 Battery）. This project is also part of the network of French technological research.
EDF ® laboratory performance of the cell membranes and PEMFC and SOFC fuel cell technology. These tests are performed on one of the research and development by EDF, the site of Renardières, near Fontainebleau.
• From now on events in the City:
EDF ® Asus Eee PC 1005ha-eu1x has been installed and is working with Gaz de France, was the first fuel cell medium is removed in urban areas in France (Chelles, Seine-et-Marne). This battery technology PAFC (phosphoric acid fuel cells) and 200 kilowatts of electricity use during the winter of 2000. The engineering firm Industelec Ile-de-France and Sechaud & Metz, which are both controlled by EDF, wins control of the practice of development and construction ow
Installation of the battery.
® EDF is to test a PEMFC stack with an output of 250 kilowatts of power involved in Berlin, as part of a European project led by German power company Bewag.
This Asus Eee PC 1005ha-e Battery is in the first half of 2000 in operation. ® EDF and Gaz de France are preparing for a demonstration project of a stack of average power in the province of Lorraine Forbach.
EnBW ® (German electricity), with EDF and Gaz de France and TIWAG combined (Austrian electrician) in January 2000, the European Commission for a proposed major event of a battery of a combined micro-MWe supports. If this project continues, the battery is in use since 2003.
Appendix 1: Principle of electrochemical hydrogen pileb is sent in the middle of the stack is a stack of elementary cells (electrochemical cells, each with a electrolyte2 anode1 and cathode3), where the reverse reaction takes place in the water4 electrolysis. In this, the hydrogen and the reactions Oxygen combine to form water electrochemical reactions and diffusion electrons5, electricity in HP elitebook 2530p batteries continu.Ô called "low temperature" hydrogen is oxidized at the anode of the electron is in the middle and protons6 dismantled. The protons pass through the electrolyte and can be found on the cathode. The imbalance of electrons produces a positive pole and negative pole, from which the electrons move to produce electricity. Parallel to the cathode, protons and electrons react with oxygen and water, a byproduct of this chemical reaction.
In Dell Inspiron 9400 batteries called "high temperature", oxygen is separated from the cathode-O2 and movement through the electrolyte and water formed on the anode. O To be effective, these electrochemical reactions accelerated by catalysts. They also produce heat.
Appendix 2: Operating principle of a fuel cell world
Hydrogen is obtained by converting natural gas into a chemical reactor, the so-called reformers. Oxygen, in turn, is obtained from the air. Ah, the DC battery produces the same principles of a battery (electrochemical reactions) the use of hydrogen and oxygen and is then converted to alternating current in a electrical transformers.