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Recently, researchers at the University of Maryland announced that they have developed a solid oxide fuel cell that is much more efficient than gasoline engine fuel cells, and that the reaction temperature has dropped from 900°C to 650°C, if it has been reduced to 350°C. , it can be applied in the car.
If you want to drive an electric car for long-distance travel, the electricity stored inside the car may not be able to take you to your destination. At this time, you still have to seek help from a traditional gasoline engine. However, the problem is that such cars, when driven by the engine, have a lower efficiency than ordinary cars because they have a heavy battery kit. Is there a more efficient way to generate electricity?
Recently, researchers at the University of Maryland announced that they have developed a fuel cell that is much more efficient than a gasoline engine. Similar to other fuel cells, this kind of fuel cell generates electricity through a chemical reaction, so its power generation efficiency is burning. Generator 2 times.
In fact, this type of fuel cell developed by researchers is an upgraded version called the Solid Oxide Fuel Cell (SOFC). Unlike the hydrogen fuel cells used in automobiles, SOFC can use such things as diesel and gasoline. Fuels such as natural gas generate electricity. Currently, this kind of battery has been applied to building power supply, but it is generally believed that applying SOFC to a car is a bit impractical, because it is too bulky and usually needs to react at 900°C.
By changing the design of the solid electrolyte material and the battery, researchers can now create a more compact SOFC. Since previous SOFCs rely mainly on solid electrolytes for structural support of the battery, the electrolytes are usually relatively thick. However, too thick electrolyte is not conducive to the generation of electricity, so researchers designed a solution that does not rely on electrolyte support. At this time, thinner electrolyte can produce higher energy output at low temperatures. The multi-layered electrolyte design can produce more power. The new battery's power generation efficiency is 10 times that of the normal solid oxide battery. If the same power is generated, the new battery is smaller than the gasoline generator. A new 10 cm x 10 cm battery can be replaced. The original bulky battery pack drove the electric car.
In addition, the researchers reduced the temperature of the new battery to 650°C. High temperature is a major obstacle to commercial applications, because if the car is running at high temperatures, manufacturers must use expensive temperature-resistant materials to make supporting equipment, otherwise cheap materials will endure failure due to frequent temperature rise and aging, and Operating temperatures that are too high will also prolong the car's start-up time. Therefore, researchers hope to reduce the reaction temperature to 350 °C for use in automobiles.
This study is part of a U.S. Department of Energy plan that aims to make solid oxide fuel cells more practical. Eric Wachsman, director of the Energy Research Center at the University of Maryland, believes that the advantages of the new battery allow it to compete with gasoline generators. At present, he only produces a smaller fuel cell, which is still far from the real engineering application.
Butt welded pipe fittings are the most widely used pipe fittings. It is made of high-quality steel pipe and is formed by heating or pressing. Carbon steel pipe fittings are divided into carbon steel elbow, carbon steel tee, carbon steel cross, carbon steel reducer (large and small head), carbon steel head (cap) 5 series. The main implementation standards include GB, DIN, ASME, JIS, GOST. The biggest use of carbon steel pipe fittings is to connect pipes, Valves, pumps and other equipment to form a complete piping system.
When using, the pipe fittings are evenly welded with the flange or directly with the pipeline, so that the entire pipeline is integrated and starts to work normally.
Pipe fittings are widely used in water, beverage, beer, food, petrochemical, nuclear power, machinery, medical equipment, fertilizer, shipbuilding, waterproofing and other pipeline systems. It is the most widely used pipe fittings in the piping system and equipment of machinery, petroleum, chemical industry, water conservancy, electric power, shipbuilding, air conditioning and other departments. The tube cap is also the end cap on the pressure vessel, which is a main pressure-bearing component of the pressure vessel. The quality of the cap is directly related to the long-term safe and reliable operation of the pressure vessel.
Types of butt welded fittings:
According to the model can be divided into: ANSI B16.9 ANSI B16.28 JIS B2311SGP DIN 2605, DIN2615 DIN2616 DIN2617
According to the shape, it can be divided into: elbow, tee, cross,
Reducer (large and small head), head (cap)
According to the thickness can be divided into: SCH 10 SCH20 SCH30 STD SCH40 XS SCH80 XXS
According to the process, it can be divided into: stamping, pushing
According to the material can be divided into: carbon steel, stainless steel, alloy steel
1: Put the high-quality steel pipe, the raw materials according to the required size, and put it into the ring-shaped intermediate frequency furnace to heat and push to form or place it on the mold and extrude it by the press.
2: Pass the shaped elbow blank through the special CNC lathe for pipe fittings according to the drawing. Welding groove processing is performed on the two ends of the elbow blank, with a certain angle and a certain edge, and the angle and deviation range are strictly in accordance with the requirements of the drawings.
3: Put the elbow blank after shaping and beveling, and put it into the shot blasting machine for shot blasting on the surface of the pipe to remove the oxide skin on the inner and outer surfaces.
4: The finished pipe fittings are inspected according to the requirements of the drawings for the thickness and radius of curvature and straightness.
5: The pipe fittings that have passed the inspection will be typed on the end face according to the customer's requirements, and the pipe caps will be treated with anti-rust treatment according to the customer's requirements, and then put into wooden boxes or wooden pallets for transportation.
Standard for butt welded pipe fittings: ANSI B16.9 ANSI B16.28 JIS B2311 SGP DIN 2605, DIN2615 DIN2616 DIN2617
Thickness of pipe fittings: SCH 10 SCH20 SCH30 STD SCH40 XS SCH80 XXS
Size of butt welded fittings: 1/2"-48" (DN15-DN1200)
Steel Fitting,Stainless Steel Fittings,Ss Fittings,Stainless Fittings
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