Mar 17
As the temperature rises during the summer season, many households turn to more than just ice-cold drinks to keep them cool. Air conditioning was once regarded as a residential luxury, but has become something of a necessity throughout the United States. Not only will air conditioning cool a room to a bearable temperature during balmy, humid summer days, but also uses the same techniques as a refrigerator to provide ventilation and dehumidification for indoor air.
Brief Air Conditioning History
The concept of cooling spaces by using natural elements is one that can be traced to the times of ancient Egyptians, who circulated aqueduct water through the walls of various structures to produce a cooling effect. Even in those times, since water was scarce, wealthy residents were only able to enjoy this luxury. During hot weather, medieval Persians created wind towers to cool down buildings. It wasn’t until the early 1800s that a British scientist started to experiment with the compressing and liquefying of ammonia. He learned that liquefied ammonia could chill the air when it evaporated.
In 1842, an American doctor named John Gorrie created ice to cool the air of hospital patients and had dreams of using this technology to create a cooling machine for buildings. He tinkered with the plans of constructing an ice-making machine with the help of a financial backer. When his support was no longer available, he could no longer finance his experiments. When he passed away in 1855, the idea of air conditioning was also laid to rest for about 50 years.
After the attempts of Gorrie, industrial air conditioning was created in the early 1900s with the first modern electrical version of air conditioning. Throughout the years, a shift was seen in the use of air conditioning, as automobiles and households began to benefit from the invention. The Carrier Air Conditioning Company began to lead the way in bringing the concept to the public, and during the 1950s, it was a contagious residential dream.
The Pros and Cons
The benefit of enjoying a cooler atmosphere during heated weather is not the only advantage gained when turning on the air conditioner. A household, vehicle, and other building environment becomes cleaner and safer for breathing when air conditioning is able to prevent the growth and spread of harmful microorganisms. Individuals who suffer from allergies and asthma are especially thankful for the better atmosphere an air-conditioned room provides, as less dust and dander are present. In seriously hot weather, babies and the elderly also benefit from air conditioning as heat waves have been known to take the lives of those whose immune systems and health might not be the strongest.
One of the most controversial topics attached to the subject of air conditioning deals with some of the materials that are used to produce the cooling affect of these machines. Fluorocarbon refrigerants also contribute to global warming concerns, which serves as one of the main ways that air-conditioning impacts the state of the environmental world. Fluorocarbon refrigerants also add to the problems concerning ozone layer depletion.
While the temporary relief that air conditioning provides makes hot summer nights and heat waves a more bearable event, many question how much the world will pay in the long run after the environmental damage has settled. Today, scientists are working on making more environmental friendly products, but for now, individuals are reluctant to part with their instant cool during the thick of summer.
Derek Both
http://www.articlesbase.com/environment-articles/is-air-conditioning-doing-more-damage-than-good-108142.html
Jul 1
When planning your new house, an energy efficient green house floor plan would be an excellent alternative to a traditional stick built home. One improtant thing to consider is the orientation of your home on the property. One way to gain energy savings is to situate the house toward the northwest and use fewer openings and heavier walls on that side.
The house should open up to the southeast in order to take advantage of solar heat. Use louvers to block harsh summer sun angles and also allow weak angled winter warmth. With a southeast orientation, the slope of the main roof should face southwest with solar panels placed on that side.
Another way to save money is in the configuration and construction of the house. Heavy mass should be used on the north or northwest side in a green house floor plan to block the winter cold. It also is an efficient way to run plumbing and HVAC. The roof may be designed to collect rainwater in large barrels or cisterns which will cut down on city water costs.
The interior of a green house floor plan should be open and spacious to allow for natural airflow from open windows and stragically placed panels. This type of design cuts down on the need for Air Conditioning by making use of wind currents to bring fresh air into the home. Pick out the most energy efficient doors and window you can afford since they will provide an excellent return on you investment in lower energy bills month after month.
The true beauty of a green house floor plan is the ability to live “off the grid” with only a few extra features. A combination of features such as rain water collection,gray water reuse, solar panels and wind power with battery back up will afford a better lifestyle that is also easier on Mother Nature. With careful design and planning you can make your new home easier on the environment with a green house floor plan.
Rebecca Welch
http://www.articlesbase.com/advertising-articles/green-house-floor-plan-build-an-energy-efficient-home-52898.html
Jul 1
The global warming issue has led the auto industry to take steps to reduce the emission of greenhouse gases into the atmosphere. Newer technologies have led to the reduction of carbon dioxide emission on new cars. Particulate filters and other related components makes sure that the carbon dioxide formed by burning petroleum products in an internal combustion engine will be purified before being shot out of the vehicleâs tailpipe.
But aside from a vehicleâs internal combustion engine, it also poses a threat to the environment due to the refrigerants they use on automobile cooling units. To reduce this threat, two giant companies have formed a partnership to develop an eco-friendly refrigerant that can be used on automotive air conditioners.
DuPont and Honeywell recently announced that they have formed an agreement that will see them sharing resources, investment and technology to produce the future of vehicle refrigerants. The partnership aims to develop a refrigerant that will help car manufacturers meet stricter European legislations concerning the threat of refrigerants to the environment. Currently, automobile Air Conditioning systems uses HCF-134a. The said refrigerant poses a serious threat to the environment because of its high global warming potential.
The partnership is geared towards the developing of new refrigerants which will have a significantly lower global warming potential. They are also looking at the cost effectiveness of the new refrigerant that they are aiming to produce.
Currently, the auto industry is already considering new technologies but is held back by their cost. That is the reason why DuPont and Honeywell are aiming to develop a refrigerant that will cost less than alternative technologies. One of the more famous alternative refrigerant technologies is the use of carbon dioxide. Using that technology though would mean significant costs in transition so DuPont and Honeywell look to develop a refrigerant that is fluorine-based which is well-matched to the HFC-134a technology currently being used.
Terrence Hahn, the Vice President and General Manager for Fluorine Products at Honeywell, have this to say about their aim: âHoneywell has a proven track record of developing refrigerant technologies to meet industry and customer requirements. We look forward to providing a near drop-in replacement that reduces the need for costly system redesign for the automotive industry. For the consumer, we will provide an environmentally friendlier, low-GWP solution without sacrificing comfort or reliability.â
DuPontâs Vice President and General Manager for DuPont Fluoroproducts Cynthia C. Green have this to say: âDuPont science and innovation helped ease the transition from chlorofluorocarbons to alternative products for both industry and society. Now we are quickly responding to the global automotive industry’s request for new refrigerants with lower global warming potential that offer a strong balance of benefits for safety, performance and cost-effectiveness. By leveraging DuPont and Honeywell resources, we can expedite product qualification and commercialization to provide a new global industry solution in time to meet regulations and effect an accelerated reduction in greenhouse gas emissions around the world.â
The development of a new refrigerant that will be developed by the partnership will surely be a good step forward for the auto industry. Initiatives such as this shows the way forward in the battle against global warming just like a Nissan light which shows the way ahead for drivers.
RyanThomas
http://www.articlesbase.com/automotive-articles/dupont-and-honeywell-joined-forces-to-produce-ecofriendly-refrigerant-125769.html
Jul 1
Portable air conditioners make a lot of sense for a variety of reasons. Let’s say you live in an apartment or a rental unit. You will not want to invest in a permanent air conditioning system because you will not be able to take it with you when the day comes that you would like to move, yet you have invested a sizable amount of money in the system.
This is no problem with a portable air conditioner. You can get one that is exactly the right size for your room needs, and when you want to move you can take it along.
Portable air conditioners also help improve a room’s air circulation. Another great feature to look for in a quality portable air conditioner is its ability to self-evaporate. What this means is that water from the air gets extracted by the unit during the cooling process, and the water is recycled by the system to cool off the hard-working cooling coils. This helps it work more efficiently, and improves its energy efficiency as well.
Some portable air conditioners offer several other features in addition to the all-important air cooling capability. Some offer Air Conditioning, dehumidifying, air cleaning, as well as a two-speed oscillating fan, and all in one small unit. Many of them have casters, which lets you roll the unit to any spot in your home you desire, and they do not need to be installed in a window. In terms of dehumidifying the area, many come with an overflow alarm for the catch bucket as well as a backup system for when the bucket is full, so there will never be any messes to deal with.
Happily, this unit is not permanently installed in a window, but instead is portable. This means anywhere you need cool air, you can now have it with ease. It makes sense to use a portable air conditioner in an apartment, or a home or office. But did you know you can also use the unit in covered outdoor situations, such as in an outdoor room, a workshop or a garage? These systems are great for vacation cabins that you visit infrequently, but when you do you want them to be comfortable in terms of the air temperature, so the portable air conditioner can be a great solution in this situation.
If you have a computer or even a server room, then you know that all of the equipment can run really hot, and it is imperative to have appropriate fans and cooling systems to keep it all from melting down. Portable air conditioners can work very well in these applications, because you can position them exactly where you need them.
Susan Slobac
http://www.articlesbase.com/home-improvement-articles/why-portable-air-conditioners-make-sense-139368.html
Jun 30
To get to work, I have to drive through a heavy traffic area, that is densely populated with eighteen wheelers that constantly spew copious and profuse amounts of diesel exhaust into the air. Hoping to avoid inhaling such fumes and nanoparticles (the kind that lodge into your brain forever after inhalation), I keep my windows rolled down and set my A/C to recirculate. I realize that the cab of my truck is not hermetically sealed, however, since when I switch back to A/C it causes my ears to pop as though in an airplane, is this an indication that no outside air is penetrating into the interior of my vehicle?
You mean windows "up" obviously. Yes, popping ears denotes that the air flow in the passenger compartment is restricted with the windows up and A/C set to recirculate. It probably isn’t hermetically sealed, there has to be a little air exchange.
From an acute health perspective, the big issue with Diesel exhaust is particulates. By restricting airflow as you are, most of the particulates are likely being filtered out by something called inertial deposition as the air squeezes through small openings. So even though some air is getting into your car (which is a good thing, by the way), a lot of the nastier particulates are not.
Jun 30
mostly interested in Air Conditioning systems ( carrier )
ok, I,m taking a class on hvac, the teacher has given us a schematic, no model number, said it was a common example.We will be tested on voltage drops , switch on or off ? component working or not ? So my question is , what is the best way to break down the schematic , follow each line and convert to a ladder type drawing ? Some of the circuits seem to have mutiple paths depending on whether a certain switch is on or off. Thanks
Follow the lines and identify every component, using the scheme.
Jun 30
with the high cost of energy,$300.00 a month light bills and natural gas prices for the homes in the winter time going through the roof,why shouldn’t people be able to buy solar energy systems at an affordable price.Only the people who can afford to pay the high cost of heating an Air Conditioning can afford solar energy.Who and what is keeping this price of this technology out of the hands of the average person ? Why is the price so high ?If the price was lower more people would buy it and they still could make lots of money because of the large numbers of sales.It would also save a larger value of natural gas for future use in other places.
Well ,sorry to inform you ,but anybody and everybody and his little brother knows that there is no way to hookup utilities to the space station.In this age of people’s exposure to high technology ,I looked for more answers that made sense.People who can afford it have already proven that it can work in homes so that isn’t what I am looking for in an answer.The biggest problem with solar energy is that it is too expensive for the average person to put into their homes.The heart of the question is ,What and who is keeping this technology from being used,The price of energy is sky high and we are useing it up.We need to save on energy/ natural gas and we need to cut down on the use of coal because of polutions.Cannon E and peter J,stop looking at the question as if you think its a stupid Question(its not) people asking Questions is the way all problems are solved.
You Absolutely completely can! The only limiting factor is the amount of energy your house uses. It would take 7 to 10 thousand dollars (which is not a huge expense if your building a home) to make enough power to run an average home.
But if your willing to make a few minor adjustments to your lifestyle, you can be extremely efficient and get buy on just a few 75 watt panels.
Jun 30
Does using the Air Conditioning in my car increase the amount of fuel used? And also, by how much? for example, if it does increase the amount of fuel used, is it a negliable amount? or is it rather significant?
yep..its not that much but it does sum
Jun 30
Yes even in the winter the fact of the matter is all buildings overheat. Good news for Brooker goober fans out there?… this video contains lots of goobering
Duration : 0:5:28
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Technorati Tags: air, BrookeBrodack, Brookers, buildings, dancing, EngA, Engineered, goob, Goobering, heat, highlimit, hot, hvac, overheat, steam, trane
Jun 30
Odyssea Divers & Cocotinos, A Small Beach Resort is owned and operated Odyssea Asia. We provide all-inclusive recreational dive packages, group incentives, PADI & SSI courses, Introductory Dive programs, EANitrox and just recently, technical diving facility. Just a 25mins drive from Manado International Airport, you will be welcomed to a resort situated in Kima Bajo Village (Wori Bay) that has earned many admirers and return guests. 2 Suites, 16 duplex villas with ensuite bathroom modern amenities and Air Conditioning, Laleina Spa, Swimming Pool and 20mins away from Bunaken Marine Park.
North Sulawesi is one of the most exciting and popular dive destinations in the world. Cocotinos, A Small Beach Resort is a dive resort designed for divers by divers with design, property development and operational expertise. Our resort is located adjacent to the incredible Bunaken Island Marine Park, famous for its beautiful coral walls that are home to incredibly rare and unusual critters and mega fauna such as turtles and sharks. Staying and diving with Cocotinos resort makes the Sulawasi experience first class!
Duration : 0:6:29
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Technorati Tags: Bunaken, Diving, Manado, Marine, PADI, Park, Scuba, Sulawesi
