How does a reformer work?
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A reformer is a huge furnace that provided the heat enery required to seperate the Hydrogen and Carbon from the stable CH4 molecule. \n\nThe ones I have worked with works like this:\nA mixture of the gas CH4 and steam H2O is passed thorough a tube that is filled with catalyst, that goes into the furnace (reformer) where it is heated to around 900C.\n\nAt that temp, and with the steam, the following are formed\nHydrogen, Carbon Monoxide, and Carbon Dioxide. So the carbon forms the CO and CO2.\n\nOther molecules can cause the following: Oxygen: Explosion\nNitrogen: Nothing\nSulpur: Kills catalyst.
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I assume you mean something like a doorbell (even larger bells, like fire alarms, work the same way in general).\n\nWhen the button is depressed, a low-voltage signaling circuit is closed and current flows to a transformer. The transformer then closes in response to the signal, completing a high-voltage circuit. The transformer's job is to create a high magnetic field. This field than acts upon a hammer, draing it away from the bell. When the hammer contacts an open contact, the control circuit is opened, the transformer goes off, the magnetic field goes off. The hammer has a spring on it which pulls it back. It hits the bell. Ding-dong.\n\nThat's the simple version. Here's the longer version:\nhttp://home.howstuffworks.com/doorbell.htm
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http://www.watertiger.net/RO/how_ro_works.htm\nyou find it here
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Catalyst works by lowering down the activation energy of the reaction. Activation energy is the minimum amount of energy which the reactants should have in order to react & result into products. The catalyt reacts with the reactants to form INTERMIDIATE products which require lower activation energy & easily result into products.The catalyst usually have large surface areas so the reactants are easily ADSORBED on its surface.The bonds between the reactant molecules break & form new products which are realeased from the catalust's surface.
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Any heating system works on a simple system:\n\n1. A heat source ('boiler') heats a circulating fluid;\n2. The fluid is pumped around the system heating other 'areas'\n3. The slightly cooler fluid is circulated back to the 'boiler' where it is reheated - by doing this we do not have to introduce additional fluid and it is more efficient to reheat already 'heated' fluid.\n\nHope this helps but if you need more drop me a note.
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The basic theory is that if you pump steam into a place where there is a piston, the piston will move up.  Then you release the steam and the piston will go down.  You connect the piston to something to get movement, such as some gears that turn the propellers or connect them to the wheels.  It's a bit more complicated than that, but that's basically how it's done.
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He is asking for mechanism....Mechanism is how it works. This is a phase equilibria problem. Please refer to A Level option booklet of phase equilibria.
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Props to mathematician.  To expand, a "machine" must transform energy in some way.  The second law of thermodynamics describes that any time energy is transformed, entropy is created.  Whenever entropy is created, the "machine" must expel some energy in order to expel the entropy that has been created (if it doesn't expel the entropy, the machine doesn't run).  So every time a machine does something, it MUST lose some energy, and it cannot run forever.
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The resistance in the wires forming the heater elements changes electrical current into radiant heat.  The radiant heat then heats/toasts the bread.
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Check out this article on How Stuff Works for a more advanced explaination with images. \n\nhttp://auto.howstuffworks.com/turbo.htm
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The crank shaft is what connects the pistons together with the transmission to change reciprocating motion (up and down) into rotating motion (turning.  This process is necessary to turn your wheels so you can get to work.
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Water pumps can  be reciprocal , geared or centrifugal.  A reciprocal pump works like an automobile cylinder.  water in the cylinder is forced out when the piston rises.  A valve closes to hold the water there.  On the downstroke, a valve opens to admit more water to the cylinder.  On the upstroke that valve closes, and the discharge valve opens.\n\nIn a geared pump, two meshing gears rotate in a very tight enclosure.  Water is admitted on one side.  The spaces between teeth carry water around the case to the discharge side.\n\nCentrifugal pumps spin water with a paddlewheel-like arrangement.  This gives the water energy in the form of velocity.  When this water is forced into a pipe, the energy converts from velocity to pressure.
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The machine consists of a screw inside a hollow pipe. The lower end of the device is put in the water, and the screw is then turned (usually by a windmill or by animal or human labor). As the bottom end of the tube turns, it scoops up an amount of water. This puddle of water will slide up in the spiral tube as the shaft is turned, until finally it falls out from the top of the spiral tube and feeds the irrigation system.
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Hopefully this diagram can answer your questions:\nhttp://fachschaft.cup.uni-muenchen.de/~schleifi/reaktion/reaction/stobbe.html
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It works by having little mirror slices at different angles. As light is reflected off the orb, the little slices separates the light into several colours briefly and the process is repeated.
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If you think on the lines of the principle of using your bicycle to make the light work which is attached to the back wheel...then how about if you attach a paddle to the the dynamo place it in the house roof drain pipe. In theory when it rained the force of the water running down the drain pipe would generate enough energy to turn the dynamo.\nHence you have solved how to make current with a dynamo at home....brilliant!!!!!!
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a more efficient heart