Archive for May, 2009

Sources of Alternative Energy

Wednesday, May 20th, 2009
hydro fuel
Mike Batta asked:


If you want to understand the various forms and sources of alternative energy, read on.

Sometimes called renewable resources, alternative energy does not need fossil fuel or even the splitting of the atom to be produced. It is called renewable because the sources of it are constantly being produced. It does not cause the pollution that oil and gas cause.

This kind of energy is not really new. What is new is that we now categorize these forms of energy as alternative energy.

The forms that alternative energy may take are fuel cells, geothermal energy, wind power, biomass, hydro electric energy, solar energy and water energy such as wave and tidal energy.

Fuel cells as a type of alternative energy is usually associated with electric cars, or hybrid cars. Electro chemical devices produce power through a chemical reaction. The primary benefit of fuel cells technology is that power is produced without the production of harmful pollutants. They are still very expensive to produce, however.

Geothermal energy can be a powerful source of energy. It is ideal for small scale use to heat houses, businesses and small industry. On a larger scale, geothermal plants extract the heat from the earth and use it to create steam to power turbine engines.

Wind turbines produce energy using the same principal as windmills. Blades are moved by the wind, and a shaft attached to the blades rotate a generator that produces energy. This energy is stored in batteries. Wind is, of course required to run this type of alternative energy, so the more wind you have the better it will work. Sites where there is a lot of wind, such as open farmland are good for wind turbines, or other locations that cannot be reached by powerlines.

Biomass is organic material that can be converted to fuel. There are many types, such as animal waste, crops and grains, wood and other byproducts from mills and forests as well as from aquatic plants. One type uses the matter to burn to produce steam power; another type transforms the matter into a gas or liquid.

Solar energy is probably the most well known form of alternate energy. It is the safe and efficient use of the heat from the sun to form energy.

Energy from water. Hydroelectric energy is the energy produced by dams.The movement of the water causes turbines to generate power instantaneously. The initial cost of a dam is very high, but after that the power is free. Tidal energy works on the same concept as dams. The turbines are put directly in the water and the motion of the tides over them powers the turbines. Wave energy uses the motion of the waves in the same way.

Those are your basic types of alternate energy sources.



Biodiesel And Its Producing Alternatives

Wednesday, May 20th, 2009
biodiesel
Daniel Roshard asked:


In a world where people rely heavily on diesel-powered engines to perform many functions for both agriculture and other known industries, it no longer comes as a surprise if there is a limited supply of derivatives of diesel fuels with traces of petroleum.

Besides the (over)exhaustion of reserves of petroleum fuels, improbability in petroleum sources and supply because of certain economic and political reasons inspired many to look for alternative resources for petroleum-based fuel sources like diesel.

You’ve heard of vegetable oil, animal fat, and recycled cooking oil being used as fuel nowadays. These are what you call Biodiesel.

From the word itself, biodiesel is an alternative to diesel fuel made from renewable or organic sources such as the ones already mentioned above. Biodiesel is produced by means of a reaction between an animal fat or vegetable oil and ethanol or methanol with a certain catalyst. Biodiesel appears as and used as either in its pure form or can be mixed with diesel to be utilized by diesel engines - a petroleum-based biodiesel. Both have yields of glycerin and biodiesel, which are chemically known as asters of methanol and ethanol.

The following presents the major advantages of using biodiesel:

1. It is non-hazardous and biodegradable.

2. It can readily be used in modern types of diesel engines.

3. It is a much more efficient as compared to fuel cells.

4. Thus, it can eliminate the huge allocation of reconstructing major fuel distribution factories and companies.

On the note of producing biodiesel extracts on a macro scale basis, two steps are usually considered:

1. Growing of alternative feed stocks.

Oilseed crops (and animal lipids) are well known sources of biodiesel because of their oil content.

Interestingly, recent programs have been funded to research on the feasibility of using algal species as feedstocks for biodiesel extracts. In fact, there are noted species of algae from which you can extract larger amounts of oil. The same species also grow at very fast rates so production would definitely be efficient. Moreover, most of these species use less water for cultivation, unlike oilseed crops.

Another advantage of using algae as a source of biodiesel is that the species also grow best in salty water, so farms could be built near the ocean without desalinating seawater.

With recent development regarding algae research, that concern is completely obliterated since it was noted that algae could survive in either a hot desert or within areas near waste streams.

Processing the feedstock into biodiesel. This step would be best accomplished by present oil refineries around the world, which are being converted to biodiesel refineries and by new companies building state-of-the-art plants.

Environmentally speaking, the use of biodiesel is basically not alarming. However, further researches regarding on biodiesel producing alternatives should be ventured upon to facilitate a more feasible large-scale biodiesel production.



Green Energy for Home

Wednesday, May 20th, 2009
green energy
Elhusseiny Shahin asked:


Trend is by yet more driven by government recommendation and sometimes backing of alternative energy research and development, the rising cost of oil and other Fossil fuels, concerns about environmental cheap to status, and intended to become energy independent.

Carbon Free concludes that, assuming traditional energy prices stay at their current levels or rise, microgeneration (meeting all of a home energy needs by installing alternative energy technology such as solar panels or wind Turbines) will be the home energy supply what the Internet has become the home communications and data gathering, and ultimately it has a profound effect on the business of the existing supply of energy companies.

Carbon Free also analyzes show that the energy companies themselves have to take the game and seek to leverage microgeneration to their own advantage for opening up new markets for themselves. Carbon Free cites the example of the electricity company (UK) on reporting is seriously research and development of ideas for new geothermal energy facilities, as companies see geothermal energy production as a highly important wave of the future. Another conclusion of Carbon Free is that solar energy warm water technology is an excellent technology for reducing home water heating costs in the long run, even if it is initially quite expensive to install.

However, solar power is not cost-effective for corporations, as they require too much in the way of plumbing to implement solar energy warm water. Finally, Carbon Free tells us that the installation of air Turbines is a great way of reducing electricity costs at home, while also more independent. However, again it is beginning very expensive things to install, and the company is well to begin slashing their prices on these devices or they will find themselves losing market share.

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Check also:

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A Home for Every Green Heart

Tuesday, May 19th, 2009
green energy
Paige Green asked:


According to the Australian Burean of Statistics, around 56 per cent of Australia’s greenhouse gas emissions are generated from the home. While it is important that we pressure business and government for sustainable initiatives, some of the easiest changes can be made in our own dwellings. From simple lifestyle changes such as adopting the Green Pages Top 50 tips to a more substantial investment in your home’s design features.

For many, building a sustainable home may seem too challenging, too daunting or just not feasible. Many people claim ‘we can’t afford it’, ‘I already own a home (and am still paying it off!)’, or ‘I’m renting’; these are all ready made excuses that make even the most die-hard greenie resistant to making a more substantial investment in a sustainable home.

‘Money is always one of the major impediments to investing in a sustainable home,’ says Julien Laclave, renewable energy promotions officer for Australian and New Zealand Solar Energy Society (ANZES). A green home can save a family thousands of dollars a year. ‘We can’t force people to invest in a sustainable renovation or a new home, but we can show them that it really pays off.’ Reduced energy bills from renewable energy sources and more comfortable living conditions that don’t require artificial heating or cooling are just some of the benefits of a sustainably designed home.

Lacave is also the project manager of the ANZES Sustainable House Day, a nationwide event that showcases a number of sutainable homes to the public. This year, over 100 homes were on diplsay and visitors could speak directly with the owners and get first hand information about the home and its sustinable features. Lacave finds taht many attendees come to sources ideas for their own projects. ‘People who visit the homes find it very inspiring. It’s very unique to be able to talk wiht the residents,’ he says.

So what’s behind good green design?

Essentially, building a ‘green home’ is to ensure a house is as ’self sustaining’ as possible. Key features include minimising energy use, rainwater harvesting, managing waste water disposal and even sustaining its inhabitants with a lush green garden. Renowned celebrities such as Csate Blanchett have brough popularity to green residences. Sustainable home design is reaching the mainstream. People are realising eco homes make good sense. Households can lower their energy bills by as much as 50 per cent and save on their water bills. Green homes stay comfortable throughout the year without the aid of artificial heating and cooling, which make them a real pleasure to live in. ‘A sustainable house is just a house that is well designed and cleverly thought out’, says Lacave.

For more information:

www.thegreenpages.com.au





Alternative Energy Resources: The Race Is On

Monday, May 18th, 2009
green energy
Madison Greene asked:


A couple years ago when New York City had its blackout, many people woke up to the fact that we use way too much electricity as an energy source. They had been taking their electricity for granted.

This event also made us aware of other depleting natural resources, such as oil and that these resources as well should not be taken for granted. Pollution, global warming, high oil costs and the threat of running out of non-renewable resources had put a spark back into the search of alternative energy resources.

Although we still have a ways to go good progress is being made. Hybrid vehicles and solar powered homes are beginning to be more accepted as ways of the future and more and more people are using them. Yes you may run into a naysayer on the street, but remember we are making progress and you should always be optimistic towards our future.

What Does It Take To Make People Aware of Alternative Energy Resources?

Most environmentalists have been cautioning the world for years that the current methods of producing electricity are not going to be around forever. Using coal and oil products to turn turbines to make electricity, they warned, is going to deplete the supply and alternative energy resources that will be needed.

They often advised the time to act was before the supplies were gone. Additionally, they stressed the importance of alternative energy resources that did not pollute the air, water and send particulate matter into the wind.

Alternative Energy Technology Still In Its Infancy

The use of water to supply power has been around for decades; seemingly ever since electricity and windmills have been supplying power in many areas of the world. The use of solar power is becoming more acceptable and using the water, wind and sun as alternative energy resources are still being examined. While many technological advances have been made, developing a cost-effective production method is still in its early stages.

Why didn’t we work on this years ago? When these technologies were first introduced there was no real financial incentive to continue development. Prices for coal and oil were still low and methods to clean the air at coal-fired plants kept pollution concerns to a minimum. However, recent increases in coal and oil prices and threat of running out has made the hunt for alternative energy resources more urgent.

Lack Of Competition Keeps Prices High

Many blame the cost of the technology for the prices of using alternative energy resources, but most agree that a lack of competition among companies using them are the biggest culprit. Many contend the prices for alternative energy resources is artificially inflated using the supply and demand calculation that the supply has not increased sufficiently to offset even the slightest increase in demand, which sends prices even higher.

Many countries have initiated incentives for companies and individuals to find alternative energy resources that can save natural resources, reduce prices and save the environment. The scare of global warming has many looking at new methods of producing power without producing a hotter environment.

Right now, it is difficult to find a cheap alternative energy resource for your home for the reasons stated above, but we are making progress, and good progress. Eventually, as technology advances, we may be able to make the alternative energy resources we have a little cheaper.

It is just too bad we procrastinated for so long to get started. Just get educated, stay optimistic, and do your part to convert the energy in your home to an alternative source.



Green Energy - Biofuels, the Real Solar Power

Sunday, May 17th, 2009
green energy
drohilm asked:


We live in a world eager for new resources of energy. But despite the huge progress and development of green energy and renewable resources, we did not yet reach the goal of good fossil fuels replacements.

There are several directions of research for new energy sources, but all of them cannot supply enough energy to make a real change. The real “green” resources are wind, waves, hydro and geothermal power, which are good resources, but certainly not sufficient to supply the demands.

The more promising sources of energy are:

1.Solar energy – which is for now very inefficient and expensive.

2. Hydrogen - which is hard to produce right now.

3. biofuels – that can compromise our food supply.

The question is – what is the most promising? – in what resource we should invest?

Before we all start to walk in the solar power road, we first must understand that for now, biofuels are the real solar power supply.

why is that? well, our solar harvesting devices are very insufficient comparing to engines using fossil fuels. but from where these fuels came from? well, these fuels come from ancient plants and animals that were much more efficient in term of harvesting the sun’s energy. I am talking about photosynthesis.

Photosynthesis is one of the most efficient processes on earth, maybe the most competent. Cyanobacteria, algae and plants can use almost 100% of the sun’s energy to produce chemical energy. nearly hundred percents of the light captured buy the photosynthesis apparatus, is transformed to electric currents and then to chmical energy stored in sugars and fats. these sugars and fats turn to be our fuels millions of years later.

But today’s plats and algae can still produce this solar energy as good as they did millions of years ago, and we use this energy in our foods to maintain our lives. Agriculture was the driving force that first let humans to control this enormous energy supply, and probably was the main trigger for the development of the human society.

In order the satisfy the ever growing demand for energy in the modern and post-modern society, we must increase a little beat our agricultural skills. Why we need to re-invent new ways to harvest the sun’s fruit, when evolution already sis it for us, and created an amazing machinery in plants?

The real goal of the people who seek for new energy sources should be dramatically increasing the yield of the agricultural production, in order to be able to use plants sugars and fats to produce ethanol, biodiesel and other bio-fuels to use in the modern industry and transportation.

Let change our investments from traditional engineering approaches to bio-engineering, guiding our research toward more proficient production of biodiesel and ethanol, the easily accessible solar power.



Geothermal Energy: Tapping Into The Earth

Sunday, May 17th, 2009
green energy
Jamie Green asked:


When considering the many sources of renewable energy that could help reduce the United States’ dependence on fossil fuels, much consideration must be give to geothermal energy.  Geothermal energy is entirely clean and does not pose the health risks associated with the harvesting, use, and burning of fossil fuels.  It is an affordable and sustainable option, something that should be given great consideration as a viable alternative.

Geothermal energy is simply the heat given off by the earth itself.  The core of the earth contains a layer of magma that continually produces heat.  This heat is produced by the decay of radioactive materials such as uranium, and over fifty thousand times more energy than contained by all of our oil and natural gas resources can be found in only a 33,000 foot radius of the earth’s surface.

Currently, the most common method of harvesting geothermal energy is by tapping into geothermal springs.  In these springs, cooler water seeps into the ground, only to be heated through convection and rise to the surface as steam.  This steam is collected and used to power electricity generators.  Many power plants drill into the earth in order to capture steam more effectively and in greater quantities.

Many geothermal reservoirs have been discovered across the globe, each with the capacity to produce as much energy as a thousand wind power plants.  There is currently much research taking part on a global scale to find effective and safe ways to tap into and utilize this energy.  The biggest hindrance to mass geothermal energy use has been the buildup of silica inside wells at geothermal power plants.  Because researchers have recently found ways to help control this costly problem that has long been the biggest barrier to widespread use of geothermal energy, there is much hope that this form of energy will finally receive the attention and consideration it deserves.

With the discovery of a way to control silica buildup comes the hope that the energy committees will invest more research and money into geothermal energy, which promises to be both inexpensive and one of the cleanest energy sources available.  Over sixty million people worldwide receive their electricity from geothermal power plants, with over four million of those people residing in the United States.  Supporters of geothermal industry hope to see that number rise significantly in the coming years, as the process becomes more efficient in regards to both finances and energy production.

In short, tapping into the earth to harvest geothermal energy is by far one of the most sustainable methods of acquiring energy available.  The earth’s core is a constant supply of energy, with no risk of depletion and no harmful emissions.  Much research should be put into geothermal energy to find the best possible methods of bringing the technology to the greatest number of people, creating energy independence and eliminating the need for fossil fuels in the production of electricity.



How to Use Biodiesel Processor for Producing Biodiesel From Vegetable Oil

Friday, May 15th, 2009
biodiesel
Muna wa Wanjiru asked:


A biodiesel processor is a combination reaction vessel. It is used for producing biodiesel from vegetable oil.

An industrial processor is very much considered convenient for production volumes, which can’t produce more than10,000 t/year. The reaction and distillation process of the alcohol is a batch processing. The decantation use to happen continuously.

In the industry, a static mixer is being used with the esterification catalyst called sulphuric acid and then methanol and vegetable oil are mixed. The reactor is used for esterfication of free fatty acids. Where as in another static mixer, an alkaline catalyst generally potassium hydroxide is getting used, this is added to the methanol-oil mix for the transesterfication.

Now in the Second reactor, the process is called transesterfication occurs. While in the third mixer, various outcomes from a reaction are biodiesel, glycerol and methanol solvent. It is being nullified by introducing a simple mineral acid. The alcohol being separated in flash vaporizer called as distillation unit. The condensed Vapors of methanol are sent to the reception unit for introducing again in the cycle.

Now the remaining products in the flash vaporizer namely, biodiesel, glycerol, salts and water, are sent to continuous decanter, which separate biodiesel from rest of the by-products. The light phase which is getting created in the decanter is en tot the storage tank and remaining heavy phase is sent to another storage tank for latter purification. After this phase, it contains 80 to 90% pure glycerol, water and salts.

Biodiesel and glycerin purification ca be done in high vacuum evaporators. There is typical design called as wiped film evaporator, where products used to be clearly differentiated from various salts by thermal as well as mechanical methods.

The quantity of raw material which is required to produce 1000kg of biodiesel and 112 kg of glycerol.

It requires 1030kg of refined vegetable oil. It requires 103kg of Methanol. Catalyst of quantity 6.2kg used in process of biodiesel is sodium hydroxide or potassium hydroxide. Mineral acid required quantity is 6kg

There are some other services which should be make available like,

Cooling water service 20m

Steam 350kg

Electricity required 50KWh

Nitrogen required 3.2m

If you are making biodiesel at home, you should use any triglyceride fat or animal tallow or vegetable oil. You should have a strong base namely, sodium hydroxide or potassium hydroxide, also pure alcohol. You should have longer chain alcohol; it must be longer than isopropyl alcohol. You can use oil for processing which is often obtained in restaurants.

There are different methods for producing biodiesel. It is generally produced in small batch processors in the garage. But now some used to adapted processors to fit at the back of vans. It is transportable. One of the major difficulty being Dealt by various biodiesel homebrewers is just to make a mid scale biodiesel processors sufficiently very simple to cheap, safe and easy to make appropriate.



"green Energy Solar" System © - it Works Like Magic!

Thursday, May 14th, 2009
green energy
Jason Gilford asked:




It isn’t just about saving you hundreds each month; “Green Energy Solar” System easily enables you to even get paid by the Power-Company for the extra-energy that you produce. Very quickly you’ll find out that this technique can successfully operate almost any home-appliance. Need more information? start reading this article and hear more about how it works.

Short overview

Having such “Green Energy Solar” System can be made possible by using one of these guides that teach you how to assemble professional Solar-Cells at ridicules cost and by using simple materials. It is highly important to work with a professional guide; check for real customers case studies, make sure it provides descriptive illustrations, photos, and tech support. In any case, here are some key-advantages and tips to help you better understand this topic.

Quick advantages

Let’s quickly go over the main benefits provided by this unique solution:

* No more power-interruptions.

* Made of simple parts/tools found at any local hardware store.

* Excellent backup to your conventional elec. sys. in case of power failure.

* Should you create more energy than needed; the power-company will actually pay you!

* Extremely easy to be implemented by almost anyone.

Quick advice

Be aware that nowadays it is possible to get the paneling for free - most professional guides will show how to do that.

Summary

“Green Energy Solar” System can easily fit to any budget size for about any of us thanks to the fact that it uses simple and extremely affordable parts. It would be quite easy to find other advantages provided by this remarkable idea, simply because it is revolutionary. It is highly recommended to simply get it in order to explore and see how it’ll affect your monthly/annual budget.



Who Else Wants To Know About Alternative Energy

Tuesday, May 12th, 2009
green energy
Madison Greene asked:


It is estimated that our natural resources will be completely depleted within the next 150 years. It is because of this that we as a society need to be actively searching for sources of alternative energy.

Alternative energy, whether it is used to replace fuels such as coal, or to reduce our reliance on petroleum based fuels; alternative energy is one of the most important issues facing society today.

The two most common types of alternative energy are:

* Wind power

* Solar power

Both of these alternative energy sources are harnessed from natural resources, and as such are completely free. Only the equipment and technology cost money, and over time as we advance the costs should be reduced.

It is these free sources of alternative energy that we should be pursuing with the most fervency, so that, eventually, energy can be available to all regardless of income. Below we will take a look at these two most common sources of alternative energy.

Wind Power

Wind power, while a free source of alternative energy, would be the most costly type of renewable energy to power our nation. This is largely in part to the fact that we must first place wind turbines across the country, in enough numbers to provide electricity to communities nationwide, even in areas where the wind velocity is not as strong. The cost of building enough of these turbines to harness the wind’s alternative energy would be staggering.

Also these wind turbines are very unsightly and would ruin very beautiful and scenic parts of the country. It should also be noted that they only produce power 1/8 of the time that they are running. That is not very efficient, but we are on the right track, things just need improvement.

Another problem I see with wind turbines is the amount of profit many companies stand to make for putting them in. Individuals are making millions off of this and that is just not right when our well-being is at stake.

However, if you’re interested in using wind power as your own source of alternative energy, it is a viable option. Many farms and rural communities use these wind turbines to power themselves. In smaller numbers, the cost of building the turbines pays for itself relatively quickly. But wind energy is only one form of alternative energy. Next, we will look at using solar power as an alternative power source.

Solar Power

Solar power is alternative energy derived from the power of the sun. Solar energy is also completely free, except for the cost of installing the equipment necessary to convert the sun’s rays into usable electricity. This equipment is becoming less and less expensive every day. Solar power generally ends up paying for itself within the first few years.

The equipment needed to use solar power as an alternative energy source for your home can be bought at virtually any home improvement store, and can usually be installed in just a few hours. If you don’t feel comfortable doing it yourself, there are a great number of contractors available who can install your solar panels and generators for you.

Regardless of which type of alternative energy you choose to use in your own home, the fact remains that we must find a renewable source of energy soon, or be at risk of losing the few natural resources we have left to burn. Contact your Congressman today, and ask what is being done to find a good source of alternative energy; and what you can do to help.