[phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead [phpBB Debug] PHP Warning: in file /includes/bbcode.php on line 118: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead CareersNG • View topic - Solar Energy
CareersNG
Career Development for Nigerians ... A Knowledge Sharing Forum!
Joined: Thu Nov 23, 2006 12:03 pm Posts: 64 Location: UK
Does anybody know how to make a solar panel or have blue prints on this. If yes, it could save nigerians a lot of foreign exchange, boost power generation because its cheap to run. Get thinking Electrical/Electronics guys, we need your creative intellect pls.
yeah...
i actually had 2 other electrical engineers as room mates in school and we tried this out..
we got a panel for 25k and the we got an inverter to convert directly to usable electricity ..
it works fine..
but its quite expensie since its imported...
so.. do u want us to talk about the application or u want us to reinvent the wheel?
I don’t buy the idea of building or using solar systems. It’s very expensive and cannot be maintained.
Considering the availability and manufacturing of the parts, it is obvious the u will use the same amount of money in traveling to Indian or Japan to get the parts. Am not saying solar is not good but can we maintain it (individual like me and you).
PHCN should look into more and cheaper ways of generating power.
A good and new technology is biodegradable devices:Its is natural,free and cheaper.Below are my analysis:
(A) Generating Electricity from Waste Water Waste water could light homes, researchers say
The waste water we flush down the toilet could one day be used to generate electricity, scientists from Belgium say.
The Ghent University researchers have designed a way to boost the output of microbial fuel cells, an emerging technology that captures the energy produced when bacteria break down waste and turn it into electrical current.
Investigators from around the world are researching the potential of microbial fuel cells, but prototypes so far have only produced tiny amounts of electricity.
(B) Geothermal Geothermal energy is the heat from the Earth. It's clean and sustainable. Resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the Earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma.
Almost everywhere, the shallow ground or upper 10 feet of the Earth's surface maintains a nearly constant temperature between 50° and 60°F (10° and 16°C). Geothermal heat pumps can tap into this resource to heat and cool buildings. A geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building. In the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system. In the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger. The heat removed from the indoor air during the summer can also be used to provide a free source of hot water.
In the United States, most geothermal reservoirs of hot water are located in the western states, Alaska, and Hawaii. Wells can be drilled into underground reservoirs for the generation of electricity. Some geothermal power plants use the steam from a reservoir to power a turbine/generator, while others use the hot water to boil a working fluid that vaporizes and then turns a turbine. Hot water near the surface of Earth can be used directly for heat. Direct-use applications include heating buildings, growing plants in greenhouses, drying crops, heating water at fish farms, and several industrial processes such as pasteurizing milk.
Hot dry rock resources occur at depths of 3 to 5 miles everywhere beneath the Earth's surface and at lesser depths in certain areas. Access to these resources involves injecting cold water down one well, circulating it through hot fractured rock, and drawing off the heated water from another well. Currently, there are no commercial applications of this technology. Existing technology also does not yet allow recovery of heat directly from magma, the very deep and most powerful resource of geothermal energy.
"At the moment we are still at the stage of basic research, but the potential for the technology is good," says Associate Professor Zhiguo Yuan, from the Advanced Wastewater Management Centre at Australia's University of Queensland.
The Technology,brings the concept closer to reality.
The researchers show that six small fuel cells stacked together can generate higher voltages and increased current.
"The efficiency of these systems is determined by the distances the electrons have to travel,"
"If you want to generate a lot of power from microbial fuel cells, you have to have a very thin reactor. But you also need to be able to work with a high volume of waste water."
Putting several small cells together ticks both of those boxes, says one Dr Rabaey, of the University of Queensland . "This work shows one step we need to make larger scale designs."
But scientists are not sure exactly which bugs generate the electricity in the fuel cells.
"There is a mixture of those that can live in that environment," Professor Yuan said.
Treating water
Scientists are most interested in using microbe-generated electricity to power the water treatment process itself.
As well as producing current, the technology can also help clear bacteria out of the water. It might also clean out substances like sulfur and nitrogen.
Once scientists figure out how to build large-scale fuel cells, Dr Rabaey says the cells will probably be used first to treat industrial waste water.
The idea of using stuff we flush down the toilet to power our light bulbs is probably a more distant hope. But he says it is not out of the question.
"The amount of energy that is in waste is incredible," he said.
"Just one sugar-cube, for example, has enough energy to power a laptop for 12 hours, and the stuff in our waste water is just different forms of sugar."
Finally, biodegradable is now being adopted in countries like Canada, US, Uk, India and Nigeria (Ogun State and Oyo state ).The two Nigerian states just signed an agreement to convert waste products into energy which I see has been natural and cheaper.
_________________ "Where There Is A Purpose,
There is no failure"
Joined: Thu Nov 23, 2006 12:03 pm Posts: 64 Location: UK
The example or application of geothermal energy that you gave, skews towards the western world where they have cold climate and not tropics. The western world are using what they have to sort their pressing needs. The point am trying to make is implementation of policies that will encourage such technology within Africa. Imagine a situation were Ajaokuta is fully operational, Silicon based technology will be embrased by intending investors in the technology sector, thus bring down the cost of such technologies as solar panel and electronic chips.
I was trying to make my comments brief.
Using bridgeable devices in Nigeria is cheaper, free and available. Let me narrow it down to these two examples:
Southern Nigeria.
There are lots of wastes materials generated and can be recycled to generate power. One cannot do without waste products in every home.
Northern Nigeria.
There is a level where one can dig a rock or ground where heat is then converted into power using turbine. The atmosphere makes it appropriate to use these systems. It’s also being used in Northern part of Africa/middle east
These two are most applicable in Nigeria. We all know about solar energy and like you said if Ajaokuta is running then the materials are readily available but this process I mentioned above is cheaper and one does not need to wait for Ajaokuta.
_________________ "Where There Is A Purpose,
There is no failure"
Joined: Thu Nov 23, 2006 12:03 pm Posts: 64 Location: UK
Nice one Fowe!
This is a step in the right direction but not quite detailed from my review. I think the later would be preferable giving that invention and production of this technology should be 100% local. I am aware that it would be costly trying to run on individual basis but the point is to collectively embrace this idea. What we need is to mount pressure on nigerian authorities to revitalise the ajaokuta industry with the aid of media houses and through media talk shows with the aim of a re-think on the benefits of such industry towards the industrialization of nigeria.
Just image for a second, the multiplier effects of a fully functional industry such as ajaokuta. I'm sure you would be thinking of steel and metal production, cars,air crafts, boats, kitchen utensils, building materials, silicon chips, etc. The list is endless.
Now why would a country such as nigeria with millions of influential people unable to make such policies happen to the benefits of their generations unborn or do we prefer to be at the mercy of other nations for our development (which translates to being dictated on what to do, and not to do, selling one's right, etc)? We are all very much aware that not every one was born with the silver spoon and can afford such luxeries but what happens to the less priviledged?
We talk about job creation in nigeria but what efforts have been put in place for such to trive?
I suggest we take a minute and reflect on this, we might come up with a thing or two.
Users browsing this forum: No registered users and 1 guest
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum