July 12, 2009
Protecting Metal Components By Using Zinc Anodes
A process called galvanic corrosion is a common form of deterioration that takes place in aquatic environments. Do not confuse this with electrolysis. They are not the same process. It happens because two or more different metals make electrical contact with one another in seawater. In this electrochemical process, they have formed a battery and some current will flow between the metals. One of the metals in the couple behaves as an anode. This causes it to oxidize faster than it would if left by itself. Alternatively, the other metal behaves as the cathode and corrodes more slowly than it would alone. Whether either metal in the couple orrodes on its own in seawater is not the issue. The problem is that when there is contact between dissimilar metals, the rates of corrosion will change. Corrosion of the anode will speed up and corrosion of the cathode will slow down or stop entirely. Fortunately, the use of a sacrificial zinc anode helps to take care of this ever present|pervasive) problem.
This type of corrosion is of special concern especially for the shipping and fishing industries where metal equipment is always in immersed in salt water. Employing the use of zinc anodes will prevent like steel tanks, rails and ship hulls from rusting. Because the zinc is more reactive than iron, it corrodes first. To greatly increase the life of their metal crab traps, crab fishermen have long practiced attaching a zinc anode. The crab trap becomes the cathode and remains protected while the anode disintegrates over time. A replacement anode should be attached after the previous one has dissolved to about half of its original size.
Most boaters are extremely cognizant that the most common victim of galvanic corrosion is boat propeller and shaft. The corrosion can be avoided by adding a third metal. As mentioned before, zinc is the metal of choice because it oxidizes more quickly than the other metals. This piece of metal is called a sacrificial anode, because it is sacrificed in order to save the other metal parts from rusting away. Its very important that zinc anodes are maintained regularly because if one waits too long, the metal parts they were meant to protect will definitely disappear.
Although utilizing zinc anodes is a smart step in protecting metal equipment in contact with sea water, knowing how much zinc to add is even more important. The amount of protection provided by the zinc anode is dependent upon its surface area. Additional factors include the type of metal that needs protecting as well as the specific chemistry of the water. The anode should be checked frequently to look for any corrosion. If any rust is detected, then zinc with a greater surface area is needed. If the zinc anode needs replacing in less than a year, then one with more weight should be used instead.
Attaching the anode is another critical step in protecting metal components. Mounting the zinc just anywhere is not going to provide any benefits whatsoever. There must be metal-to-metal contact to allow that electrons will flow. The metals can be either in direct physical contact or connected by a wire. This also means that there cannot be paint on any of the metal surfaces or sufficient contact will not be made.
When utilizing zinc anodes, there are crucial steps that cannot be overlooked if the anode is to be effective. Use an anode with enough surface area and mass, attach it so it makes physical contact and make certain that there aren’t any coatings on either metal that will impede the electrical contact.
Filed under Environment by chuck stewart
July 11, 2009
Using Task Lighting in the Home
Task lighting is simply good quality lighting that adequately illuminates a work area so you can see what you are doing. In a home, task lighting can be particularly useful in kitchens, bathrooms, home offices, garages, workshops, and even in living rooms and bedrooms. Anywhere you will be working on a task that requires good lighting, you should consider installing proper task lighting.
When you think of task lighting, large commercial fluorescent light panels with the long narrow bulbs immediately come to mind. But task lighting need not always be wall or ceiling mount lights or light fixtures. Sometimes task lighting is better provided by a specific style of lamp or a flexible system of lights. And task lighting, though predominantly functional, need not be unattractive or clinical in appearance. There are a wide variety of stylish options available to provide aesthetic appeal as well as utility-in materials ranging from bamboo and wood to glass and copper-and everything in between that will fit every style of home.
For kitchens you can purchase task lighting in the form of fixtures that are mounted under the kitchen cupboards. This way the countertops are well lit. However for other areas such as the sink, stove or island you can choose to install recessed or track lighting to provide adequate illumination. Another place where task lighting comes in handy is over eating tables in the kitchen, as well as dining room. These are often places where people also do work, such as writing or paying bills.
In the bathroom, task lighting is typically installed above and/or to the sides of the mirror to assist in putting on make-up, shaving, or other grooming tasks. This could be in the form of attractive wall sconces and/or a strip-type light fixture mounted horizontally over the mirror. Some people also like to have a ceiling mounted light fixture in either the center of the room or over a shower, bathtub, soaking tub, or whirlpool. As long as there is proper head clearance, a pendant light fixture or chandelier could even be considered over an attractive tub to create a spa-like experience.
In the home office, craft room or workshop of your home it is of utmost importance to have the right lighting since the activities that take place in these rooms, such as sewing or reading, require a lot of light. Having the proper lighting alleviate eyestrain and as a good safety precaution, especially working with power tools, it is necessary to have adequate task lighting in the room. Adequate lighting is important to have directly above the area where the work takes place, even if the room seems well lit from a chandelier or other overhead light fixture. Monorail lighting or track lighting is often ideal since it can be moved or angled and that way the light will shine where it is needed most.
If you have a garage and utilize it for work benches or work on your vehicles here, then it is essential to have task lighting located over the places where work is done. In garages people often use overhead lighting, floodlights or utility lights that can easily be hung from a small hook right above what you are working on, such as a car engine.
If you or family members will be reading, doing hobbies such as needlework, doing homework, or performing other activities in the living room or bedroom, appropriate task lighting should also be provided there. This could be a side lamp on an end table or nightstand, a table lamp, a floor lamp, a pair of sconces flanking the bed, a wall mount bedside reading lamp with a flexible arm, or even a clip-on light of some type with a flexible neck.
Proper task lighting is absolutely necessary for your own comfort and safety. This is true whether you are cooking, reading, writing, doing crafts, painting or even building something like a birdhouse. In the workplace, ergonomics are in place which dictate that employers have to provide the proper lighting for the work area, but in your own home the responsibility is yours alone and you have to make the first move. Today, with so many attractive lighting options available there should be no problems decorating your home with beautiful and functional task lighting.
Filed under Environment by Tom Sanderrs
Many homeowners don’t realize that their home might not be selling just because of the wrong light fixtures. By replacing them with more attractive and appropriate ones you will quickly see that it makes a difference when it comes to getting potential buyers to see your home or just drive on by.
It might sound too easy of a solution, but if your home has been on the market for a long period of time then you have to consider that it does look dated. Many things can create that dated appearance, such as colors of the paint, decor, kitchen and bathroom fixtures, as well as countertop materials, appliances and naturally the light fixtures. Whereas some of these items are easily and inexpensively replaced, others will cost a lot of money. Replacing old light fixtures with modern ones will make a world of difference and is also one of the easiest and cheapest ways to bring your home up to date.
Let’s take a look at how your light fixtures could be hampering your quest for a quick sale and how you can change that in just a few hours!
In the past there was not as much in the way of light fixtures available and that is obvious since almost every older home seems to have the same kinds of lights. Just take a look around and you will most likely notice that you too have those simple round ceiling mounted lights or those square plates with the bulbs on the underside.
A look in the bathroom and you will probably see a piece of wood over the mirror and on it a strip of light bulbs. Of course there are also the sconces that look similar to brass on either side of the mirror. Both of these fixtures have probably also seen better times and are not in ideal condition anymore.
The fixtures in the hall have the same problem. The plain overhead light that is in no way capable of properly lighting up the hallway. In the kitchen and dining room there is the same problem, but this time with the formerly standard ceiling fan fixture with the light and tons of dust. It is no wonder that potential home buyers aren’t impressed by this and notice it immediately.
Another problem is that the light fixtures you have also don’t match the style of your house. If you have modern decor and old fixtures, you may not notice but any potential buyers will right away.
One thing you can do is compare your home to a similar one that is feature in one of those home magazines. This will make it clear just how different the light features between the two are and you will understand how important it is for the old fixtures to go.
Another good idea is to go to any home improvement stores and see what kind of light fixtures are for sale now. There is definitely a lot to choose from and you will have your pick. There are attractive pendant light fixtures, monorail and track railing systems, beautiful chandeliers and decent wall lamps. Regardless of what style you want you can find the right lights for your needs and which also are suitable for your home. This simple fix will increase the chance of selling your home since it will literally be seen in a different light.
Filed under Environment by Tom Sanderrs
When driving through a neighborhood, have you ever seen any houses with a large number of tall tinted windows? There is a good explanation, because of such windows, the people living in those homes are saving a good deal of money on their energy bills each month. How is this?-you ask. More simple than you might think. These homeowners have invested in home solar panel kits. With very little work your home could be built to make homemade energy using solar power.This would in turn save your family money by eliminating your monthly electric bill.
When you are ready to build your solar powered home, you might consider some of these ideas. It is common in most parts of the country for the sun to shine southward towards your home. The best location for most of your windows would therefore be on the south side of your home. By strategically placing your windows, you are letting the sun flow naturally through your home making it easier to heat with solar energy. You should also consider how many trees are close to this side of the house, because they can block the suns rays making it more difficult for the solar panels to absorb the sun light for the solar energy. When decorating your home you might also consider decorating with lighter colors which help distribute the heat from the sun more evenly than darker colors do.
Home solar panel kits work by collecting heat from the sun and transforming it into energy for your home. This renewable energy works to power your home as well as heat your water. The initial cost for building a solar powered home is a little more than a conventional home, but the savings far outweigh that initial expense. Homemade solar power really is the smarter choice when you consider the outrageous rise in the cost of electric power over the last few years. Living off grid has not only become easier but solar panel kits and other solar products have become more affordable.
Tips for using solar energy to heat and cool your home:
1.) The amount of time you run your air conditioner can be reduced by the use of ceiling fans.
2.) Ceiling fans also distribute the amount of heat and air more evenly so you do not have hot and cold pockets throughout your home.
3.) By using insulated metal doors, they will help keep out the cold and bring in the heat.
4.) By keeping the doors shut on the side of your home most exposed to sunlight, it will help save the heat inside your home for a longer period of time.
There are many benefits to building a solar home including throwing your monthly energy bill out the window! You not only save money by using the free power of the sun but you are being environmentally conscious as well. Living off grid is easier to do than in years past thanks to affordable home solar panel kits. Without the worry of rising gas and electricity prices you can really enjoy your new solar powered home.
Filed under Environment by Tariq Ajram


