Search Results - Air conditioning
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Air conditioning is the cooling and dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling, heating, ventilation, or disinfection that modifies the condition of air. [1] An air conditioner (often referred to as AC or air con.) is an appliance, system, or mechanism designed to stabilise the air temperature and humidity within an area (used for cooling as well as heating depending on the air properties at a given time), typically using a refrigeration cycle but sometimes using evaporation, commonly for comfort cooling in buildings and motor vehicles. The concept of air conditioning is known to have been applied in Ancient Rome, where aqueduct water was circulated through the walls of certain houses to cool them. Similar techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season. Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by Willis Haviland Carrier. While moving heat via machinery to provide air conditioning is a relatively modern invention, the cooling of buildings is not. Wealthy ancient Romans circulated aqueduct water through walls to cool their luxurious houses.[citation needed] The 2nd century Chinese inventor Ding Huan (fl. 180) of the Han Dynasty invented a rotary fan for air conditioning, with seven wheels 3 m (10 ft) in diameter and manually powered.[2] In 747, Emperor Xuanzong (r. 712–762) of the Tang Dynasty (618–907) had the Cool Hall (Liang Tian) built in the imperial palace, which the Tang Yulin describes as having water-powered fan wheels for air conditioning as well as rising jet streams of water from fountains.[3] During the subsequent Song Dynasty (960–1279), written sources mentioned the air conditioning rotary fan as even more widely used.[4]
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Showing 1 to 25 of 116 Articles matching 'Air conditioning' in related articles. |
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1. Proper use and installation of air conditioners
November 06, 2009
Among the most important appliances in recent years air conditioning units have undoubtedly gained a prominent place, essential in summer to breathe in the heat of our cities.
We still remember the first air conditioners were huge beasts, made a lot of noise and moving them from one place to another was a task to the limits of strength. And they also certainly did not have all the features and different abilities of the actual air conditioners today. They blew out cold air, and that was it. And they cost so much, at least a few million liras. But in a few years things have changed a lo... (read more)
Author: Martina Meneghetti
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2. The ACRISS Code Exlained.
November 06, 2009
You may have noticed that in the description of rental car categories, a four letter code is usually included. This is a universal system used throughout the world, and is known as the ACRISS code, which stands for Association of Car Rental Industry Systems and Standards.
The code relates to four separate characteristics which apply to rental vehicles, and these are Class, Type, Transmission and Air Conditioning.
The following are the most common variations of each characteristic:
These characteristics are then used to describe the car category, for example:
An EBMN cat... (read more)
Author: Car Guru
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3. About Energy and Energy Efficiency
November 05, 2009
Scientists claim that global warming is fast approaching and satellites ratify their claims with pictures of melting icebergs in Antarctica and Arctic. Indeed it is high time to wake up and take notice, before it is too late. The results have been initiatives in technologies that promise significant energy efficiency and focus on going green; the air conditioning and other mechanical services included.
Studies reveal that a total of 30% to 40% energy consumed by human kind is used up in buildings – almost 50% of the energy used in Australia is used for cooling and heating commercial comp... (read more)
Author: Louise Lambert
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4. Phoenix Plumbing, Air Conditioning and Heating Repair Services
November 05, 2009
Phoenix Plumbing, Air Conditioning and Heating Repair Services ">Phoenix Plumbing, Air Conditioning and Heating Repair Services
We are open 24 hours a day 7 days a week. We specialize in Plumbing, AC and Heating Repair Services, Toilet Plumbing Repairs, Sewer and Drain Cleaning, Water Heater Repairs, Plumbing Valve Repairs, Sink and Faucet Plumbing, Bathtub and Shower Plumbing, Water and Gas Leak Detection, Pipe and Hose Repair and Replacement and Disposal Repair. We service entire Phoenix County.
Call toll Free: 800-686-8640
http://www.phoenixplumbingservices.com
Phoen... (read more)
Author: Joseph Scott
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5. An Introduction to Test Instruments
November 01, 2009
An Introduction to Test Instruments
Electronic test instruments are used to create signals and capture responses from electronic devices under test to prove their proper operation or trace and repair faults, if any. Some of the most important and best test instruments that are widely used on a regular basis in various standard, everyday devices are air flow meters, moisture meters and HVAC tools (Heating, Ventilation and Air Conditioning tools).
Air flow meters, also known as anemometers, are devices that measure the speed of the air flowing through a tube in a defined time segmen... (read more)
Author: Doug Williams
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6. Home Hvac: Providing Comfort
November 01, 2009
HVAC (pronounced either as "H-V-A-C" or "H-vak") is an acronym that stands for the directly related functions of "Heating, Ventilating, and Air Conditioning"- the technology meant for indoor environmental comfort. HVAC (Heating Ventilation Air Conditioning) system design is a most important sub discipline of mechanical engineering, working using the principles of thermodynamics, fluid mechanics, and transfer of heat. Refrigeration is at times added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped like in HACR (such as the designation of HACR-rated circuit breakers). ... (read more)
Author: Todd Submitoff
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7. Healthy air - healthy people
November 01, 2009
Healthy air – healthy people
Air conditioning has helped to improve the quality of air in places of business, shops and even private homes for a number of years now. When the weather is hotter it can help to maintain a stable and comfortable temperature for those within a room, office or building. It can also help to purify air by filtering out particles such as dust and mould spores, which can help to keep those with allergies or sensitivities healthy. In the UK, the majority of air conditioning systems are used in large offices, public buildings and other places of work.
Systems... (read more)
Author: Robert Marshall
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8. Benefits of DIY AC Repair
October 29, 2009
Many people do not know about the benefits of do it yourself air conditioning repair. In fact, there are people who are hesitant about do it yourself air conditioning repair because they think you need to be certified, which is why they do not do, do it yourself air conditioning repair. There are however some benefits to do it yourself air conditioning repair.
The number one benefit of do it yourself air conditioning repair is that do it yourself air conditioning repair is much cheaper than having to hire a technician to do repairs for you. Do it yourself air conditioning repair is not a ... (read more)
Author: June Smith
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9. Becoming HVAC Certified
October 27, 2009
One main priority of all families is to be comfortable in their own homes. People will always have a desire to stay cool in the summer months and warm in the fall and winter, and it is for this reason that the HVAC field will always be in demand. HVAC stands for “Heating, Ventilation, and Air Conditioning” and provides an opportunity for those willing to stay focused to earn a respectable income. The HVAC industry is one of the easiest to enter, and an individual can become involved through one of many paths. From servicing residential and commercial clients as a technician to providing parts ... (read more)
Author: Crystal Ware
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10. Geothermal Comfort: Investing in Savings
October 27, 2009
According to the U.S. Environmental Protection Agency (EPA) geothermal systems are,“the most energy- efficient, environmentally clean, and cost-effective space conditioning systems available today.” Extremely high levels of efficiency are possible because a geothermal heat pump only uses electricity to move heat, not produce it. A geothermal unit typically supplies four to five kilowatts of heat for every kilowatt of electricity used. Three to four of these kilowatts of heat come directly from the earth itself, and are clean, free and renewable. Geothermal heat pumps also take advantage of the... (read more)
Author: June Smith
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11. MOT Testing: An essential check-up for your Cars
October 27, 2009
It is very much required to check the cars every year to ensure that they are safe and secure to be driven on the road. The test is called as MOT test acronym of Ministry Of Transport test. In simple words, MOT test includes emission testing, controls and the fitness of the car. We can define MOT testing like: The Ministry of Transport test or MOT test is a regular test of the cars or any other automobile for their all over safety, road worthiness aspects and exhaust emissions. In general, MOT performed on cars every year. In United Kingdom MOT test performed on cars in every three years if th... (read more)
Author: Paul Philpott
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12. Magnetizers
October 27, 2009
Magnetizers are equipments that are used to remove the scale in water. Magnetizers find a varied use in industrial houses and factories. These are widely used in plumbing coils. Heating coils also have magnetizers in them. Besides, these are also found in air conditioning chillers and are also employed in spas and pools. These are of different types and as already stated, have varied functions.
Besides the industries which use them, there are industries where these equipments are manufactured. In the factories, these are usually used in cutting magnetic sheets of magnum. For these, usual... (read more)
Author: Smith Anderson
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13. Wind Power as a Viable Solution to Alternative Energy Needs
October 26, 2009
commercial success is realized by various companies producing the turbines and researching technologies to make them ever more efficient.
In addition, people are moving away from the traditional electric grids and the fossil fuels for personal reasons including desire for greater independence, the desire to live remotely or rurally without having to go primitive, political concerns such as fears of terrorist strikes on oil fields or power grids, or concerns about the environment.
Again, this motivation to get away from the traditional energy sources is the same one that causes people... (read more)
Author: Penny Smith
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14. Wind Power as a Viable Solution to Alternative Energy Needs
October 26, 2009
Although it is much less expensive to initially get hooked into the local electric company’s grid than it is to set up and hook into wind turbines, in the long run one saves money by utilizing the wind for one’s energy needs while also becoming more independent. Not receiving an electric bill while enjoying the advantages of the modern electrically-driven lifestyle is a wondrous feeling.
Electric bills and fuel bills are rising steadily but the cost of wind turbine energy is zero, and the cost of installing and hooking up a turbine is steadily coming down as demand rises and more commerci... (read more)
Author: Scott Smith
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15. Frugal Living: Surviving without Air Conditioning in the Summer?
October 26, 2009
I recently read an editorial about saving money throughout the summer by not running your air conditioner. While I will likely not even try this one, I wanted to share it with some of you guys to see if any of you are fearless enough to try it.
The narrative from the article is that the author had not used the air conditioner in two summers and it was quite easy to adjust to the switch.
The tips are to turn off the a/c (clearly), when you are spending time outside, you are doing so in the shade, do not even turn on the air conditioner in the car, and stay away from places that have a... (read more)
Author: Robert Bell
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16. Window Air Conditioners: - How to Reduce the Noise Level
October 26, 2009
Perhaps the most widely used air conditioners are the window air conditioners. They are quite popular for heating and cooling in both domestic and commercial premises. The basic advantage of a window air conditioner is that unlike the central air conditioners and the split air conditioners, it fits well in the window giving a good look and it does not occupy any space of the room at all.
Moreover, window air conditioners do not need to be shifted every now and then from one place to the other. However, like any other air conditioning equipment, it produces noise, the intensity of which d... (read more)
Author: vijay mishra
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17. DIY Preventative Maintenance
October 26, 2009
Its 6 p.m., a very hot 96 degrees with the humidity at about 80%, and you just got home. Of course, the a/c in your car didn’t quite have time to cool off before you got in the bumper to bumper traffic on the interstate, so you had to turn it off before the auto overheated. That’s OK. At least you remembered to leave your home a/c turned down to about 65 degrees.
You’ll cool off once inside and you shed the sweat soaked clothes. Just getting the house key in the hole makes you sweat. Then it hits you right in the face! A blast of hot air that has started your head pounding. No air conditi... (read more)
Author: June Smith
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18. Air conditioning system basics and theories
October 26, 2009
In the refrigeration cyclehe refrigeration cycle, a heat pump transfers heat from a lower-temperature heat source into a higher-temperature heat sink. Heat would naturally flow in the opposite direction. This is the most common type of air conditioning. A refrigerator works in much the same way, as it pumps the heat out of the interior and into the room in which it stands. This cycle takes advantage of the way phase changes work, where latent heat is released at a constant temperature during a liquid/gas phase change, and where varying the pressure of a pure substance also varies its condensa... (read more)
Author: Wendy zong
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19. DIY Preventative Maintenance
October 23, 2009
Its 6 p.m., a very hot 96 degrees with the humidity at about 80%, and you just got home. Of course, the a/c in your car didn’t quite have time to cool off before you got in the bumper to bumper traffic on the interstate, so you had to turn it off before the auto overheated. That’s OK. At least you remembered to leave your home a/c turned down to about 65 degrees.
You’ll cool off once inside and you shed the sweat soaked clothes. Just getting the house key in the hole makes you sweat. Then it hits you right in the face! A blast of hot air that has started your head pounding. No air conditi... (read more)
Author: Penny Smith
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20. Tips to Cut Down Electricity Bills
October 22, 2009
Many people complain about high electricity bills but are often confused about the main reason behind the increase every month. With the increased usage of air conditioning units, it could be the main reason for contributing towards higher electricity bills. This article will give you some tips to lower down your bill by enjoying the same facilities in the daily routine. There is a general tendency among people to place expensive equipment in the house just to show off but are they often shocked after receiving their electricity bills. In such a crucial situation, people start finding diff... (read more)
Author: C.V Laningham Laningham
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21. Cutting Energy Waste To Save Money
October 22, 2009
Tired of throwing money at oil companies and your local utility? You can fight back by eliminating the energy waste in your life. Consider the following:
1. If you have an attic, you undoubtedly are wasting money on your heating bill. Take a close look at the entrance to the attic. If it is a drop down from the ceiling, hot air is moving up and through it.
2. When considering the layout of solar panels on your home, it is vital that you consider how to maximize the exposure to the sun. This is known as “orienting” and involves placing the panels in such a position that they receive a... (read more)
Author: June Smith
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22. your electric cooling fan is not functioning properly ?
October 22, 2009
Is your car AC not functioning properly? If your answer is yes, there is a high probability that your electric cooling fan is not functioning properly. Most of the times, we tend to ignore the overheating of the car, thinking the air conditioning is at fault.
But actually, in a high percentage of cases it is the cooling fan which is at fault. Talking in technical terms, the efficiency of the Car’s engine depends, among other factors, on the amount of heat removed from it. And responsible for removing this heat is the cooling fan. Not long ago, belt driven fans were used, but these days ,... (read more)
Author: jackson peter
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23. Newport Beach Executive Suites: A business Destination with Difference
October 22, 2009
Newport Beach Executive Suites and smart collection of Newport office space as per diverse business requirements of the business community replicates only sure shot success and growth as it offers a selection of quality serviced office space with ample car parking for you and your visitors all throughout Newport Beach. Each Executive Suite is equipped with the latest technology, air conditioning and broadband internet access.
Core Benefits of Office Space or Executive Suites in Newport Beach:
Professional On-site Manager
Individual Offices and Mini Suites
Furnis... (read more)
Author: Tim Thomas
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24. Air Pollution - Your House May Be Harming Your Family
October 21, 2009
Kitchen cabinets, furniture, perfume, even candles and air fresheners – they can all contribute to the air pollution in our homes.
Dr. Bernard Hamel, former Director for the Institute for Environmental Studies at Drexil University, estimates that the levels of potentially deadly toxins in the average American home may be five times greater than the level of toxic pollutants found in the dirtiest city air.
Indoor air pollution poses a far greater risk to our health than outdoor pollution. Exposure to tobacco smoke, structural materials, mold, and even simple household dust can make us... (read more)
Author: Scott Smith
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25. using an air conditioner with a grow box
October 19, 2009
Hydroponics grow box machines with air-conditioningThere was a day not too long ago when indoor gardeners grew their plants in a grow box with no air-conditioning. Some users in hot parts of town would often grow in temperatures of 90-100° or more. No matter how many fans they used to cool a grow box, you really could never keep it cooler than ambient temperature at best.That's where the air conditioned hydroponics grow box comes in. Growers these days are blessed because they can now install air-conditioning machines right into their hydroponics grow box units so that they can keep the temper... (read more)
Author: Allen Carrillo
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