| |
| |
|
Science Information |
|
|
|
Why Condition Your Boiler Water?
A boiler is used for generating steam. It does this by heating water to its boiling point, after which steam will evaporate from it. When you boil a kettle of water, you will shut off the fire or electric power when the water comes to a boil. No so with a steam boiler. Generation of steam is a continuous process. Once a boiler is generating steam, it may take quite a long while before it is stopped. When steam is evaporated from the water, new water has to be added in to replace the water given out. As more and more steam is evaporated, the water becomes more and more concentrated with salts and other impurities. If you use your kettle for a long while, you will see some chalky deposits inside it. The fresh water supplied to replenish those lost through evaporation cannot be pure and free from salts. Even minute quantities of salt in the water will eventually become so concentrated as to form scales or deposits. The deposits are usually calcium or magnesium salts. These scales are very damaging to the boiler because they interfere with the heat transfer and can lead to overheating and eventually, boiler rupture. Soft water is water that contains very little calcium or magnesium salts. They are used to feed the boilers. However, they tend to be acidic in nature. Acidic water tends to corrode. This is not good for the boiler. Corrosion can weaken the boiler. By treating the boiler water with chemicals, we can control the acidity of the water as well as the softness of the water. This will solve the problem with scales and corrosion, but it is not the ultimate cure-all. The boiler water will continue to become more and more concentrated as the steam evaporates. The next step to take is to remove the concentrated water and replenish it with fresh, soft water. The process of removing the concentrated water is called blow-down. Folks, close your ears! Until next time? Ease Up Your Educational Research Effort The Largest Online Library in the World with over 45,000 books, 360,000 journals, magazines, and newspaper articles all in their entirety. Create footnotes and bibliographies automatically. Excellent for High School Students, College Students, Educators. http://www.freemarine.com/linkquestialibrary.htm Many years of working experience in Marine, Facilities, Construction has given the author material for writing e-books and articles related to engineering, and management. Subscribe to facworld ezine at mailto:facworld-subscribe@yahoogroups.com More information at http://www.free-marine.com and http://www.free-engineering.com
MORE RESOURCES:
Science - Google News |
|
|
|
RELATED ARTICLES
What are the Biggest Solar Projects? Solar power will be necessary for space exploration and off planet colonies on the moon and Mars in the next few decades and our advances here on Earth will assist us with the knowledge we need to power them up. Some may not realize but we have come a long way in our solar technology in the last few decades and we are now ready to take this experience and knowledge to the next level; to build something out of this world. Tactile Squeegee for Plexiglas Windows Cleaning Plexiglas windows is not easy, you have to be careful to apply the right amount of pressure. Too little pressure and you do not clean it very well. Aerodynamics of a Flying Disk or Flying Sphere Aerodynamics of a flying sphere. It has been said that in the future we maybe flying around anti-gravity type spheres, but this does not mean it will not have to deal with relative wind in our own atmosphere. Bees Wax; History and Origin We have often been asked where wax comes from? Well there are many types of Waxes. Bees wax has been around for a while. Army Mobile Command Center for UAV Launch After visiting the Denver RC Modeler Club one day as they practiced for the national finals in PHX that year, we attempted a touch and go landing on our Blitz Mobile, which is a 74 foot long NASCAR type truck and trailer. Probably nothing more than a Fighter Pilots son from the cold war wanting to re-invent the aircraft carrier concept on a almost nano scale? We were successful on doing a touch and bounce on the top of the trailer without too much difficulty. Glyco Nutrients & Stem Cell Production During the speach, Dr. Reg McDaniel talked about first seeing new stem cells in the peripheral blood of clients using glyconutrients many years ago and not recognizing these cells as stem cells. Veterinary Hematology 101; 2005 Abstract Veterinary Hematology is more than just blood cells. Blood, highly functional and truly definitive, does much more than provide for the transport of cellular metabolites and waste products. New Energy Bill: Reducing Our Dependence on Foreign Oil The U. S. Laser Ionization Airflow Tunnel Flight Theory I believe their is a way to have an on board aircraft laser the air in front of it and move the air out of the way, thus less friction at lower altitudes, no sonic booms and rapid acceleration no induced or parasite drag at low altitudes. You could call it hyper laser atmospheric conditioning. Locusts To Help Make Energy From Bio Waste, part IV We are in a Plague year 2004-2005 where the locusts are swarming. No one knows how long this will last, but this problem could rage on for several more years. UAVs and The Future Enhancements of Tele-Robotics Today we have already available UAVs, which will soon have the capacity of operating together in swarms, controlled from another nearby aircraft. We have UAVs, which can be flown by a pilot sitting at a desk more than 1000 miles away. The Best and Worst of April's Weather If Johannes Kepler, the renowned 17th century astronomer and discoverer of the planetary laws of motion, could speak from the heavenlies, he might have a few words of wisdom to share with the National Weather Service. Although Kepler's name is not normally associated with meteorology, he was quite the weather forecaster in his day. Submarine Propulsion and Internet web sources Let us discuss the patent for the Submarine, which is now in the public domain, not that any foreign governments ever cared since they have been building them for years. Since my Grandfather built the first Ring Gyro at Stanford Research years back, I think it wise to discuss these things in a modern context. A Unique History of the Light Bulb Most people assume that Thomas Edison invented the light bulb. This is only partially true however. DNA Profiling: Its Uses In Court DNA Profiling and Its Uses in CourtStronger evidence in courtrooms-it's what every attorney, defendant, and plaintiff dreams of. Beginning in the last 1980s, this is exactly what began to surface through DNA profiling. TSUNAMI The Next Big Wave:The Grandaddy of Them All A few days ago on Melbourne's 60 Minutes, renowned scientist Dr Kerry Sieh predicted the guaranteed next big wave or giant Tsunami will definitely happen, and it will be the Grandaddy of them all.Indonesia gets the full force this time around . Confusing MAV Optic Flow Sensors In flight Using Mobiles Using Shapes on Mobiles to confuse optic flow sensors in Micro Air Vehicles appears to be feasible. Today we are studying the flight paths of Bats, Insects even birds to build and fly miniature UAVs; called Micro Air Vehicles or MAVs. Locusts To Help Make Energy From Bio Waste, part II If we take the menace, nuisance and destructive Locust, we can create a win/win situation by and allowing it to survive and happily eat our bio-waste filling up our dumps. Then as it progresses and digests the food it will create energy. Rodent Populations are Half within 3 miles of a Railroad Track About a month ago, I was helping a friend collect meteorites. We picked out a grid pattern and started walking six to 9 feet apart with metal detectors looking for the iron-nickel meteorites which are quite common here on the Earth's surface The grid is large and takes many days to even make a dent in it and each time we are able to collect some meteorites. Is Your Brain Really Necessary? The reason for the apparently absurd question in the title is the remarkable research conducted at the University of Sheffield by neurology professor the late Dr. John Lorber.
|
| home | site map | Xray Photography |
| © 2006 |
