Car Radiator


The cooling system of the car and functioning

Energy lost to heat

The purpose of a fuel engine to convert chemical energy (stored 'in, for example petrol or diesel) into kinetic energy. That will always be better, but is still only about 30% of the supplied energy is converted into mechanical power: 70% is lost as heat. Thus, the engine is warm. And if we are not careful, he is even hot. In ancient times it was too bad, because the power was limited. The residual heat of a 10 horsepower motor can easily be dissipated by buitenlucht.Luchtkoeling (or direct cooling) is called so. With increasing engine power problems arose, however refrigeration. If an engine is really hot, then melt all rubbers, the oil is thin as water and turn the piston so far that they get stuck in their cylinders. In short, the whole thing turns into soup. Cooling fins created a larger cooling surface so the wind could discharge more heat and worked with forced air cooling, with fans blowing air through the engine. The modern engine, the more important is the operating temperature. There is really only a temperature at which the engine performs best. All parts shrink because when it is cold and expand as they warm up. They are so constructed so that they are exactly correct size as the engine temperature. To more accurately and be able to cool, the water cooling (or indirect) invented refrigeration.

Water cooling

Water cooling is actually still air, but indirectly. Instead of the air the engine cools, it cools down the radiator and the cooling water that runs through them. A water pump circulates water through the radiator, through the numerous channels in the engine and hoses through (and including a water pump) back to the radiator. With water cooling the engine can be better cooled, partly because the radiator in the right place can be set to the wind to catch, before the engine just behind the grille. If the engine is cold, put the water stopped, so the engine reaches operating temperature. The thermostat controls the cooling function: the engine too hot, then circulate the water, the temperature drops below operating temperature than the water flow quietly put back. Are you on a hot summer day in traffic, then the radiator no longer, because there is no wind and the water cools enough in the radiator. A fan will start turning to still air blowing through the radiator and the water so cool. Even the fan has a thermostat function again, which he "knows" when and how fast it should run. A water-cooled engine makes a lot less noise, partly because the cylinders more or less surrounded by water.

The hotter the cooling water, the greater the temperature difference between the air and the greater the cooling capacity. But the water should also not touch the boil and that is why the cooling system under pressure. The boiling point is higher and so is also no fluid is lost through evaporation. If the pressure gets too high, then a safety valve in the steam radiator removal. This will only happen if something is not right with your car's cooling system. Most cars have a coolant temperature gauge. So please look there for when the weather is hot and you for the traffic light staat.Als the cooling is not optimal, you can see the meter rise toward the red area. That solves the problem of course, but you better think about is your local garage, somewhere in an emergency. In critical cases you still have quite some influence on the cooling:

When we talk about cooling and water cooling, we should actually speak of cooling and liquid cooling. To the cooling water is because ethylene glycol is added, better known as antifreeze. Very important, because water has the annoying ability to 9% off when it freezes: no antifreeze and with a little luck, you engine winter bursting... With luck, by the way, jumping instead of caps the block who ever placed the holes in the casting process to fill. Do you have summer do not need antifreeze? Yes, because ethylene glycol raises the boiling point of the coolant, thus better cooling. Antifreeze also prevents corrosion in the cooling system.

Operation Radiator / Water Pump / Cooling

The radiator cools the water as well as the tubes through which water flows associated with thin, fine-meshed metal plates that heat them quickly to give the air that flows through it. But the radiator is full of flies, anyway, it hardly flows through air and cools it does not. It is therefore important to him somewhat clean. Be careful, because the metal plates and are easily damaged. High-pressure spray or brush on it and not wash if the radiator is hot, because cold water can cause a temperature shock, which damaged the structure. For oil coolers and radiator of the air is the same way.

High School Woodshop Projects And Plans

You would think that for being so involved in woodworking I would have been the ace of my high school woodshop class. Nope, not me! I honestly didn't pay much attention, as a matter of fact, I don't think I ever finished the project I started... a simple footstool.

What I do remember is seeing some pretty amazing high school woodshop projects, especially from the older students. I was especially impressed with all the sweet "Flying V" guitar bodies (not to mention the hair that went with them!) I don't know if schools still allow students to build skateboards and guitar bodies as woodshop projects, but I'm pretty sure that rifle stocks are out nowadays. Here's a short list of some of the more popular high school shop projects I've seen over the years:

    * Cedar Chest
    * Desk Drawer Organizer
    * Speaker Cabinets
    * Chess Board
    * Skateboard Deck
    * Foot Stool
    * Note Pad holder
    * Cutting board
    * Adirondack Chairs - cedar
    * Shoeshine Boxes
    * Wooden Puzzles
    * Guitar Bodies

High school woodshop projects are a rite of passage for many young men and women. There's not much that's more therapeutic than the scent of piles of sawdust, and splinters in your fingers. Something about a handcrafted woodshop project makes folks want to keep them around for years. Even though I never finished my school project, I still have nearly everything I've ever built from wood. Before choosing your high school project, be sure you consider the following:

    * Take the time to check out a bunch of plans, or purchase a good package with lots of woodshop projects in it.
    * See which plans will work for your skill level.
    * Make sure the necessary tool are on hand at the shop or at your home.
    * Will you have enough time to finish? It's hard to get a good grade on a half finished woodshop project.
    * Will you have enough material available, and can you afford to buy enough to finish your project?
    * Do you have a good, clear plan that details all the steps in an understandable way?

If you're a high school woodshop teacher looking for ideas, or a student that just can't decide what to build, let me tell you there are a about a gazillion plans out there. Some are excellent, some are pretty poor, but one thing's for sure - it can take a lot of time to locate the good ones. You can spend a lot of money on woodshop projects and plans, but you really don't have to.

You can get more information about high school woodshop projects, woodworking tool reviews, plan reviews and more at National Woodworking.

High School Athletics Fundraisers

High school means studies, enjoyment and a lot of sports. Schools, like many corporations, are facing a financial crisis; the first things to go are the non-essentials. Unfortunately, in many schools sports are one of the first to go.

To avoid this, high school students and staff are actively involved in fundraising events to support their teams. In order to raise money, teams sell things like candy bars, tee shirts, cookie dough, magazine subscriptions, and scratch cards, organize car washes, bake sales, spaghetti dinners, and golf tournaments. They set up booths at grocery stores and malls, and ask for cash sponsorships from local merchants.

High school students are always on the Internet; so online auction fundraisers are popular among the high school crowd. There are hundreds of websites to go to for information and ideas. Sites that support high school fundraising claim to have 30% more catalog items, 45% more items sold, and 133% more donated items than the average live action event.

Online auctions that support the educational market have 30% more catalog items, 45% more items sold, and 133% more donated items than the average live auction event. School-related auctions are doing very well for themselves on the Internet.

Students who are old enough can also go door to door for fundraising.

With any school fundraising event, safety is a big concern when using kids going door-to-door as sales people. To keep everyone safe remember that all fundraising activities involving kids (even high school kids) should be supervised by a teacher or parent.

School Fundraisers [http://www.e-SchoolFundraisers.com] provides detailed information on school fundraisers, elementary school fundraisers, high school athletics fundraisers, high school fundraisers and more. School Fundraisers is affiliated with High School Fund Raising Ideas.

High School Groups and Bvlgari Perfume

One of my most vivid memories of high school was the social groups that teenagers formed outside of the classroom. There was the intelligent, or geeky group that always got straight A's and played chess during lunch. Then there was the sports group that spent their whole lunch hour kicking around a soccer ball instead of eating. The artsy group spent their free time doing extra art projects or practicing for the school play. And then there was the popular group. The popular girls would douse themselves in perfume, especially Bvlgari perfume if they had more money.

High school was a time when you had to associate yourself with a particular group and there weren't always individuals who stood out alone. There was a lot of social pressure to be part of a certain group and the need to categorize yourself. Everyone always, sort of in a joking way, made fun of the intelligent group, even though they secretly admired them and wished they could be like them. They always did the best on the tests and homework assignments. Some of them were even the teacher's pet and did special things for the teacher like get them water or clear off the whiteboard. They were generally good kids who meant well.

The sports group was more of a louder bunch. While the smart kids were playing chess at lunch and working on their homework assignments, the sports kids were either on the soccer field or basketball court getting ready for the next game. They were seriously into sports and even wore their sports jerseys the whole day at school. I remember they were always lucky because they got to leave school early for sports tournaments.

The artsy group was very talented. Some of them worked on art projects in their spare time. One girl was asked to design a mural for the school and she spent many lunch periods sketching out what she wanted to create. Another boy sat at a ceramic wheel every lunch period. He probably had a whole collection of pots he had made at school in a room in his house. The theater group would spend their lunch time in a room singing, acting, or dancing, or even practicing an instrument. There was a very talented girl who could play the piano, guitar, flute, and recorder and she would sometimes perform for people at lunch. She was always asked to play for the next musical in school.

Finally, there was the popular group. Everyone wanted to be them but no one wanted to be like them. They always had the trendiest clothes and school accessories. The girls would spend their lunches in the bathrooms doing their hair and putting on all sorts of perfume, like Bvlgari perfume. The guys would hang out and just talk around the lunch tables but then sometimes go to the bathroom to check themselves out in the mirror. Those were the good old days of high school! Everyone had their own club to feel a part of.

Read a story about social groups in high school here perfume or perfume usage in high school here Bvlgari perfume.