Nice Electrolytic Cells photos
December 3rd, 2011
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Archive
Posts Tagged ‘cells’
What happens to the byproduct of hydrogen fuel cells in a space craft?
October 30th, 2011
Question by Joshua Cloud: What happens to the byproduct of hydrogen fuel cells in a space craft?
I have a project on hydrogen fuel cells and read that they use them in american space crafts. But i was wondering where does the water go and what happens to it?
Best answer:
Answer by Bill
its exhuast, it cant be re collected, at least not 100 percent
a rocket engine runs on liquid oxygen, and hydrogen gas, when the burn its like burning gasoline but stronger and it has no carbon. its an external combustion engine though, that means all the reaction takes place outside the engine, or that the energy is vented straight out of the engine
so all exhuast is just left, they could use some type of collector i suppose to reclaim the water, but it wouldnt be efficent
What do you think? Answer below!
Academy Plus; VCE Chemistry Tutorial – Ratios involving n(e) and electrolytic cells
October 17th, 2011
www.vcetuition.com.au This is a question involving electrolysis cells and how we work out the ratio of n(Cu) : n(Ag) : n(Al).
Explains the process of electrolysis of a molten salt, an aqueous salt, and water.
Video Rating: 5 / 5
solar cells for residential electricty sold and installed?
October 16th, 2011
Question by benjamin m: solar cells for residential electricty sold and installed?
Best answer:
Answer by kcguy6935
I assume you want a list of installers in your area. If so try this site.
Know better? Leave your own answer in the comments!
Build Solar Panels DIY – How to Solder the solar cells part 4 Solar Cell Mounting.
October 3rd, 2011
This step works well for resins that are less expensive and do not tolerate extensive UV exposure. The tape filters the UV and also locks the cells in place. There are several UV resistant Duct Tapes and other power adhesive tapes on the market. I like standard White Strapping Tape
Q&A: how much % of light coming in to solar cells is changed to electricty?
September 25th, 2011
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Question by hi: how much % of light coming in to solar cells is changed to electricty?
the efficency of a solar cell
Best answer:
Answer by roderick_young
From Wikipedia:
Solar cell efficiencies vary from 6% for amorphous silicon-based solar cells to 40.7% with multiple-junction research lab cells and 42.8% with multiple dies assembled into a hybrid package.[26] Solar cell energy conversion efficiencies for commercially available multicrystalline Si solar cells are around 14-19%.[27] The highest efficiency cells have not always been the most economical — for example a 30% efficient multijunction cell based on exotic materials such as gallium arsenide or indium selenide and produced in low volume might well cost one hundred times as much as an 8% efficient amorphous silicon cell in mass production, while only delivering about four times the electrical power.
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And my comment: after the cells are put into practical panels, subtract another few % of efficiency. So 14% would be pretty typical for a crystalline panel you buy on the open market.
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MIT puts solar cells on paper
July 12th, 2011
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MIT puts solar cells on paper
There has been talk recently of the first solar powered aircraft. But it appears a research team at MIT have gone one better and developed the first solar powered paper planes.
Read more on TechEye
Go Green: Your options for alternative energy at home
You’re a realist, and probably nowhere near “going off the grid.” But you’d love to save money and be kinder to the Earth. How easy is it these days to use alternative energy at home?
Read more on Post South
New Cost-Saving Rear Silver Conductor Pastes for Silicon Solar Cells from Ferro Electronic Materials
CLEVELAND–(BUSINESS WIRE)–Ferro Electronic Materials, a leading supplier of materials for fabricating photovoltaic silicon solar cells for more than 25 years, will introduce two new rear silver conductor pastes at Intersolar North America, held in San Francisco, California, 12–14 July. The two new products reduce cost per Watt while maintaining the same adhesion, solderability, and field …
Read more on Business Wire
Cool Electrolytic Cells images
July 4th, 2011
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Cool Electrolytic Cells images
July 1st, 2011
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Nice Electrolytic Cells photos
June 11th, 2011
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Do cations move to the cathode and anions to the anode in all electrochemical cells or just electrolytic?
April 28th, 2011
Question by annie: Do cations move to the cathode and anions to the anode in all electrochemical cells or just electrolytic?
I know that oxidation occurs at the anode and reduction at the cathode for all types of electrochemical cells, but I’m not sure about the migration of cations and anions?
Best answer:
Answer by TLV ×
A widespread misconception is that anode polarity is always positive (+). This is often incorrectly inferred from the correct fact that in all electrochemical devices negatively charged anions move towards the anode (hence their name) and/or positively charged cations move away from it. In fact anode polarity depends on the device type, and sometimes even in which mode it operates, as per the above electric current direction-based universal definition. Consequently, as can be seen from the following examples, in a device which consumes power the anode is positive, and in a device which provides power the anode is negative
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Hybrid solar cells
March 12th, 2011
Check out these SOLAR ALTERNATIVE images:
Hybrid solar cells
Image by Argonne National Laboratory
Solar Water Heating
Image by London Permaculture
Hydrogen fuel cells have been considered an alternative for a clean source of energy. In a fuel cell, hydrogen?
March 5th, 2011
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Question by Jose: Hydrogen fuel cells have been considered an alternative for a clean source of energy. In a fuel cell, hydrogen?
Hydrogen fuel cells have been considered an alternative for a clean source of energy. In a fuel cell, hydrogen reacts with oxygen to produce water, and at the same time, it releases a great deal of energy. Write an essay that addresses the chemical reaction of hydrogen fuel cells, the energy that is available from this reaction, and whether this type of alternative fuel is feasible. Be complete and use examples to support your statements
Best answer:
Answer by Etienne de Quercy, extra-terrestre terrien-extra
use perhaps the Riemann’s dzeta function
What do you think? Answer below!
Lastest Electrolytic Cells News
February 9th, 2011
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Q&A: How do I make learning about hydrogen fuel cells fun?
December 9th, 2010
Question by Princess: How do I make learning about hydrogen fuel cells fun?
I’m doing a presentation on hydrogen fuel cells & I want to make it interesting & entertaining. Any ideas? I was going to make a hydrogen fuel cell generator but it’s very expensive.
Best answer:
Answer by Colin
Talk about the possiblities of space travel because of hydrogen fuel. Talk about the possibilites for cars powered by water! Just talk about really neat things that can be done with hydrogen power.
What do you think? Answer below!