Archive for October, 2009
How it Will Benefit Us All: Gasification
How it Will Benefit Us All: Gasification
If you search for gasification and terms like “wood stove†on video sharing sites these days you will see demonstrations of wood being burnt in little stoves which seem to something almost miraculous and quite different from our idea of wood as a fuel. These little boilers light rapidly, produce no detectable smoke after the initial lighting and firing, and burn very hot.
So what is the technique which is being used, and how might it help us all in weaning society off fossil fuels?
What you have seen is a method of gasification. It differs from combustion in that it uses just 20% to 30% of the air or oxygen necessary for complete fuel combustion. During gasification, the amount of air supplied to the gasifier is carefully controlled with the effect that only a small part of the fuel burns completely. Trials of this process have illustrated that up to 70% of the energy value of the fue used can be recovered as what is known as synthesis gas, or syngas. This producer gas can also be used for various applications similar to natural gas.
This is a part of the magic, and not one really shown in the YouTube type videos, but it makes this method even more useful. This is due to the fact that syngas can be put to useful work, in both drying the feed fuel prior to gasification and after collection and storage it can be used as a fossil fuel replacement, and renewable energy source. When a gasification plant also includes Combined Heat and Power (CHP) and/or electricity export from the site, the gains are even more impressive.
Gasification in addition promises to be the most efficient long-term solution for capturing carbon while utilizing these valuable feedstocks, and storing the CO2 for very long priods, to reduce or halt global warming.
Gasification of wood and wood-type residues and waste in fixed bed or fluidised bed gasifiers with subsequent burning of the gas for heat production is has become state of the art with designers of thes systems working hard to gain the absolute maximum efficiency out of these systems.
These wood gasifiers which are located primarily in the Scandinavian countries are used almost entirely for space heating heat generation. Gasification of biomass is the renewable fuel system preferred by many, and can be defined as the thermal conversion of solid biomass to gaseous fuel.
Gasification has been around for over a hundred years, but the benefits of biochar are only now being discovered. Furthermore, it is still a wide-open field.
Before electric lighting was available in cities there were street lamps fuelled by gasified coal. It is easy to forget that the process has been reliably used on a commercial scale worldwide for more than 50 years in the refining, fertilizer, and chemical industries, and for more than 35 years in the electric power industry. More than 75 companies involved in the development, licensing, and use of these technologies as well as engineering, construction, equipment manufacturing and production of synthesis gas by gasification from coal, petroleum coke, heavy oils and other hydrocarbons.
Gasification has been proven to be a viable technology for CO2 capture and reducing SOx, NOx, particulate matter, and mercury emissions from coal and petcoke-fired power plants, synthetic fuels production, and chemical facilities.
Plants in this category have been capturing carbon dioxide for several decades in chemical plants in China and the United States. It also has potential contributions to make to both transportation and electrical power energy markets. With ongoing concerns about the price and availability of oil, populous countries like the U.S. gasification has proven to be in high demand and quite successful. However, it can also be used in conjunction with gas engines and gas turbines to obtain a higher conversion efficiency than conventional fossil-fuel electric power generation. Gasification can help meet renewable energy targets, address concerns about global warming, and contribute to meeting global environmental targets.
Steve has built a great web site where there is a lot more information about gasification. This is a hot subject indeed for this technology which has become an essential read for all those in alternative energy and interested in taking action to reduce the impact of climate change.
NEW WORLD SAVIOUR
Water Extraction is Done in DC
Water Extraction is Done in DC
There are many beautiful and interesting sights in Washington DC, among them are the White House which has been home to every president of the United States ever since 1800; the Tidal Basin Lake famous for its abundant Japanese cherry trees that blooms in Spring; the Lincoln Memorial and Jefferson Memorial, Washington Monument, etc.
But regardless of the beautiful tourist attractions that one could go to in the State of DC, natural calamities in the form of flooding sometimes happen. And when it does, most household residents in DC do the physical cleanup by themselves without hiring water extraction professionals or experts to deal with the situation. Prior to actual removal of water and cleaning, the starting place of the water which caused the flood should be identified as soon as possible and fixed permanently to prevent it from arising all over again.
Cleaning would usually require having to remove all visible waters first by making use of a wet vacuum pump or a bucket – depending on the volume and availability of equipment. The extraction process must be done immediately or as soon as possible to avoid a higher cost of damage inflicted by the dirty waters and also to thwart of any possibility that the area becomes a source of infectious diseases due to the presence of pathogens.
When all the water has already been extracted, floor coverings should be removed immediately and disposed properly. This includes removing items which came in contact with the flood water that are very porous, because the high absorbency rate of such materials has already contaminated the item in question making it very dirty and highly infectious. No amount of cleaning or fixing could reinstate it in its previously clean state; hence replacements should be made eventually if still needed.
Brushing all affected surfaces with a soapy water solution removes the presence of dirt. Pay particular attention to dirt which is inserted within cracks on walls and floors. Rinse the entire area by using a mop and bucket or a garden hose with a spray gadget.
When the rinsing stage has already been done, disinfecting the entire place is a must to remove remaining germ and fungal spores. Remember that disinfecting does not entirely mean total sanitation but a means of making the area or place habitable again. Never mix chlorine bleach with other cleaning products that contain ammonia as this will produce poisonous gas. Before and during application of any disinfectant, make sure to open all air passage ways and vents to avoid inhaling the vapors of the disinfecting agent upon application.
After having done the disinfection phase, the whole area must be thoroughly dried out, and drying usually takes a couple of days or weeks depending on how big the place is and the weather. The re-occupation of any living space which has been previously flooded must only be done once the area is declared by a professional water extraction expert to be absolutely dry. The dryness is tested by a moisture meter which shows the amount of moisture above and below a given area.
Leo Nov is an editorial staff member of RestorationSOS. To learn more about Water Extraction visit our website. Click here for more information on Water Extraction DC.
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The New 3 R’s
The New 3 R’s
I was back in the grocery store this Saturday, but it was not the prices (although I did manage to keep it under ninety pounds once again) that caught my eye or even what other people were buying. In fact, what I noticed this Saturday did not happen until I was home and unpacking my weekly shopping. What I noticed was the amount of packaging, most of it useless, that I put into the bin. Of course, we have been using our green bags for over a year now so we are not throwing very many plastic ones away. Well, in fact we don’t really throw any away, because we try to follow the adage…Reduce, re-use, re-cycle. I want to look at how the 3 R’s of reduce, re-use, recycle fits into all of the Frugal Fam core values.
Family first. Since we are our children’s first and best teachers, I think that the time we invest in teaching them about all things environmental is an excellent investment in our futures and theirs. Isn’t it ironic that reduce, re-use, recycle could become the new 3 R’s. In fact so I don’t wear out my fingers re-typing it all over and over again, let’s us that term in the rest of the article to refer to reduce, re-use, recycle. It is never too early to begin either. At three, my daughter knows the difference between the bin and the recycle bag (sometimes better than my eighteen year old).
Saving money. In fact, in the UK most councils offer free recycling facilities to all residents, which means that recycling costs us nothing. There are examples too of how recycling can actually save you money though, such as my wormary, which produces organic liquid fertiliser and compost or reducing your energy consumption by turning down the thermostat. And as I have shown in past post about Freecycle, charity shops and similar services, you can save a great deal of money by re-using items that someone else may no long need.
But in the USA recycling too can actually pay money. Although not as easy for many American families to place bags or special bins on the stoop (although some forward thinking counties and cities are offering curb-side recycling as in the UK), the profit from this activity can be used to fund extras or meet essential obligations. Before I left Los Angeles in 2006, there were increasingly mini-recycling centres often in the parking lots of grocery stores. Families could take their paper, metal and plastic products and turn them into paper…paper money that is. In some ways this is more incentive to recycle than the UK system. What if your family could pay for its holiday through recycling? Perhaps even clean up your street? I know that my three years old loves helping me to pick up trash in her park. Could your family do something similar?
Environmentally friendly. Like I said, the 3 R’s are among the basics of environmentally friendly. It is one of the easiest things that we can all do to save this special planet for our children and grand-children. Alright, we have all heard the pundits talk about how recycling does not make a difference. So to clear up a few of those myths:
- Enough energy is saved by recycling one aluminium can to run a TV set for three hours.
- A steel mill which uses recycled scrap reduces related water pollution, air pollution, and mining wastes by at least 70 percent.
- Creating one ton of recycled paper uses only about 60 percent of the energy needed to make a ton of virgin paper.
- Seventeen trees are saved for each ton of recycled newspaper.
- Recycling steel and tin cans saves 74 percent of the energy necessary to produce them.
- Today most bottles and jars contain at least 25 percent recycled glass.
Healthy living. It may not be immediately obvious how the 3 R’s can make you healthier, but I have a couple of examples:
- Reduce your carbon footprint by walking to school, the store and anywhere else you can…also increases the amount of exercise you are getting. Walking is actually one of the best exercises there is.
- Eating fresher often means that there is less packaging as frozen, tinned and jarred products, which produce more waste also, are likely to have more added salts, sugars and preservatives.
- Reducing the carbon miles of your food by growing your own fruits and vegetables also allows you to grow them organically as well as having the benefit of reducing your stress through the pleasurable hobby of gardening.
Now that we have talked about how the 3R’s of reduce, re-use and recycle keep with the Frugal Fam core values, I hope that each of you will join me in this journey and share your ideas for Reduce, Re-use, Recycle.
Terri O’Neale is the mother of six; ranging in age from 3 to 22. She has been both a working and stay-at-home mother at various times in her life. She was also a single mother for almost five years, before re-marrying the love of her life at the age of forty. Obviously, she has a life-time of training in raising a family on a tight budget. In addition to these real life experiences, she possesses a bachelors degree in health education and a minored in environmental management in her masters programme.
Terri feels strongly that this is one of the most challenging times in history for the family, but she also believes that families with the will and resolve to address the pressing issues of saving money, becoming greener, leading healthier lifestyles and spending more time with one another can endure these challenging times and come out victorious in the end.
Through Frugal Family articles, blogs, videos and social networking, she helps modern families rediscover some lost art forms such as cooking, sewing, and gardening. The goal is not to go back in time or become fanatical, but to help all families find simple and effective ways that fit into their lifestyle to make moderate changes with huge impacts. For more information, check out her blog http://frugalfam.wordpress.com/.
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