Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Air Cooling shopping experience:
1. Compare - without doubt the biggest advantage that the Air Cooling offers shoppers today is the ability to compare thousands of Air Cooling at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.
2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about
3. Testimonials - don't know anybody that has bought a Air Cooling? Wrong! If the Air Cooling is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.
4. Questions - Got a question about Air Cooling then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....
5. Reputation - Never heard of the company selling Air Cooling? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Air Cooling and build up a picture of their reputation for sales, returns, customer service, delivery etc.
6. Returns - still worried that even after all of the above your Air Cooling wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.
7. Feedback - happy with your Air Cooling then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.
8. Security - check for the yellow padlock on the Air Cooling site before you buy, and the s after http:/ /i.e. https:// = a secure site
9. Contact - got a question about Air Cooling, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.
10. Payment - ready to pay for your Air Cooling, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.
Air cooling is one method of dissipating heat. It works by making the object to be cooled have a larger surface area or have an increased flow of air over its surface, or both. An example of the former is to add
heatsink s to the surface of the object, either by making them integral or by attaching them tightly to the object's surface (to ensure efficient heat transfer). In the case of the latter it is done by using a
fan (mechanical) blowing
air into or onto the object one wants to cool. In many cases the addition of fins adds to the total volume of material making a heatsink that makes for greater efficiency in cooling.
In all cases the air has to be cooler than the object or surface from which it is expected to remove heat because thermodynamics says that heat moves from higher to lower levels.
Examples
Vehicles
Air is mainly used for Air-cooled engine
internal combustion engines (ICE), particularly those powering aircraft, because it is a readily available fluid and is often at a suitable temperature to be used efficiently. While many such ICE are called "
liquid cooled" the cooling liquid is usually cooled by air passing through a radiator or
heat exchanger. Examples of direct aircooling in
automobiles are the
flat engine such as in the pre-1996 model
Porsche 911, the VW Beetle, the
Chevrolet Corvair, the Citroën 2CV, the 247 BMW and some early Honda keicars.
Turbines
Gas turbine engines (e.g. turbojets, turbofans, etc) incorporate turbines, which are exposed to the hot gases exiting the combustion chamber. Where necessary, relatively cold air is bled from the compression system and used to cool the turbine blades and vanes, to prevent them from melting.
Electronics
Its use is widespread in computers and
CPU cooling, where the computer
central processing units produce large quantities of heat that, if not dissipated, could damage the CPU and other electronic components. In this case air has the advantage of being a good Electrical insulation too. However, in the future, new processors might generate too much heat to be dissipated through direct air cooling and it would follow that such direct cooling for computers and their components will become obsolete.
Industries
A very large number of
industry processes use air as a cooling medium, either directly or indirectly. A very common process is air conditioning where the air in a room or a whole building is cooled so that a comfortable human environment is obtained and the air in contact with the people is able to carry away the heat generated by the body and by such as office or kitchen equipment. Often the air has been cooled by chilled water or brine and the heat transferred to that meduim is transported outside the building where, often, fan-driven water-to-air
heat exchanger is again effected to reject the heat into the atmosphere. A common sight around, for example,
power stations are the large waisted concrete towers that emit steam more or less constantly. These are, in part, using air cooling on a grand scale.
Exceptions
Ships are one of the few complex power generating systems that do not use air cooling very much at all. Most of their heat goes directly into the water.
See also
- Computer cooling
- Computer fan
- Evaporative cooling
- Water cooling
- Oil cooling
- Heat pipe cooling
- Peltier-Seebeck effect cooling
- Heater Core
External links
- A good overview on cooling techniques for modern boards
- A basic Air Cooling FAQ
Air cooling is one method of dissipating
heat. It works by making the object to be cooled have a larger surface area or have an increased flow of air over its surface, or both. An example of the former is to add heatsink s to the surface of the object, either by making them integral or by attaching them tightly to the object's surface (to ensure efficient heat transfer). In the case of the latter it is done by using a
fan (mechanical) blowing
air into or onto the object one wants to cool. In many cases the addition of fins adds to the total volume of material making a
heatsink that makes for greater efficiency in cooling.
In all cases the air has to be cooler than the object or surface from which it is expected to remove heat because thermodynamics says that heat moves from higher to lower levels.
Examples
Vehicles
Air is mainly used for
Air-cooled engine internal combustion engines (ICE), particularly those powering aircraft, because it is a readily available fluid and is often at a suitable temperature to be used efficiently. While many such ICE are called "
liquid cooled" the cooling liquid is usually cooled by air passing through a
radiator or
heat exchanger. Examples of direct aircooling in automobiles are the flat engine such as in the pre-1996 model Porsche 911, the
VW Beetle, the Chevrolet Corvair, the
Citroën 2CV, the
247 BMW and some early Honda keicars.
Turbines
Gas turbine engines (e.g. turbojets, turbofans, etc) incorporate turbines, which are exposed to the hot gases exiting the combustion chamber. Where necessary, relatively cold air is bled from the compression system and used to cool the turbine blades and vanes, to prevent them from melting.
Electronics
Its use is widespread in computers and CPU cooling, where the computer central processing units produce large quantities of heat that, if not dissipated, could damage the CPU and other electronic components. In this case air has the advantage of being a good Electrical insulation too. However, in the future, new processors might generate too much heat to be dissipated through direct air cooling and it would follow that such direct cooling for computers and their components will become obsolete.
Industries
A very large number of
industry processes use air as a cooling medium, either directly or indirectly. A very common process is air conditioning where the air in a room or a whole building is cooled so that a comfortable human environment is obtained and the air in contact with the people is able to carry away the heat generated by the body and by such as office or kitchen equipment. Often the air has been cooled by chilled water or
brine and the heat transferred to that meduim is transported outside the building where, often, fan-driven water-to-air heat exchanger is again effected to reject the heat into the atmosphere. A common sight around, for example, power stations are the large waisted concrete towers that emit steam more or less constantly. These are, in part, using air cooling on a grand scale.
Exceptions
Ships are one of the few complex power generating systems that do not use air cooling very much at all. Most of their heat goes directly into the water.
See also
External links
- A good overview on cooling techniques for modern boards
- A basic Air Cooling FAQ
Air cooling - Wikipedia, the free encyclopedia
Air cooling is a method of dissipating heat. It works by making the object to be cooled have a larger surface area or have an increased flow of air over its surface, or both.
Four Seasons Group - www.fourseasonscontrol.co.uk
The Four Seasons Group - Nationwide Air Conditioning and Ventilation installation and maintenance specialist
Portable Air Conditioners | Air Conditioning, Portable Air ...
Portable air conditioners, split air conditioner, Air Cooling Conditioners, Air Conditioners, Air Conditioning, Portable Air Conditioning Units, air conditioner sale, air ...
Air conditioning supplier and installer based in Surrey and London
Air Conditioning installation and service for commercial and residential, serving the Middlesex and Surrey areas in UK.
Energy efficient air cooling with Safe Evaporative Cooling from ...
Air Cooling with evaporative cooling products and systems from EcoCooling. Cool industrial and public spaces with safe, economical and ecological evaporative cooling.
Engine cooling - Wikipedia, the free encyclopedia
Engine cooling is cooling an engine, typically using either air or liquid.
evaporative cooling - air cooling - weather data
Air Cooling with evaporative cooling products and systems from EcoCooling. Cool industrial and public spaces with safe, economical and ecological evaporative cooling.
GIGABYTE - Product - PC Components - Thermal Solution - Air Cooling ...
GIGABYTE,Product,PC Components,Thermal Solution,Air Cooling,Products ... Genuine Windows is authentic Windows software that is properly licensed and legally installed.
O-CuK :: Over-Clock UK Ltd - Air Cooling
Over-Clock UK Online Store - Fans & Cooling from Scythe, Zalman, Arctic Cooling and others ... Although watercooling is becoming more popular, air cooling is still the mainstream ...
SYSTEMS HEATING AIR COOLING
Installation Pre-Installation Our survey department ensures that everything is in place before any installation commences, this may involve assisting with matters such as planning ...
