The clothes dryer , dryers , dryers or dryers is a tool powered household used to remove moisture from the load clothing, blankets, and other textiles, usually not long after washing in a washing machine. Otherwise, clothing can also be dried by natural evaporation and, if available, sunlight, in the outer or indoor outfit or clothing line.
Many dryers consist of a rotating drum called a "tumbler" in which hot air is circulated to evaporate the humidity, while the tumbler is rotated to maintain the air space between the items. Using this machine can cause clothing to shrink or become less soft (due to loss of soft fiber/short fibers). A simpler non-rotating machine called "drying cabinet" can be used for fine fabrics and other items not suitable for drying machines.
Video Clothes dryer
Mesin pengering
The tumble dryer constantly pulls ambient air around them and heats it up before passing it through the tumbler. The resulting hot and humid air is usually discharged outward to allow more air to continue the drying process. This design does not attempt to recycle the heat loaded into the load, and thus is considered wasteful of the environment. Nevertheless, it is simple and reliable, and therefore has been widely used.
This improved method of saving heat for home heating, using an inline ventilation box equipped with a flapper valve to direct moist air that is heated to indoor areas, will also increase the humidity inside the dwelling. While this may be beneficial in winter conditions, excessive moisture from these devices increases the likelihood of mold, mildew, and bacterial growth in the home. Indoor ventilation may also conflict with local regulations. Gas dryers, unlike electrical dryers, should always be outdoors, since combustion products are mixed with moist air. Building codes and factory instructions usually recommend that ventilation dryers are outdoors. An indoor fiber trap kit raises similar concerns about the increase in moisture inside the house.
The "long run" dryer has an additional fan inside to increase the moist air out through the longer ventilation pipe, such as in an apartment or residence where ventilation can not make a short direct connection from the dryer to the outside.
In addition to ventilation disposal problems, other improvisational efficiency attempts with conventional dryers try to harvest pre-heat air input sources rather than using AC air from living space. One of the most important sources of heat for pre-heat air dryers is to install water channels that allow the tool to suck the hot air from the attic of the dwelling.
Tumble dryers are often integrated with a washing machine, in the form of a laundry center, which accumulates the dryer over the washing machine and integrates controls for both machines on a single control panel, or in the form of "combination washer-dryer" basically front loading washer with dryer integrated. Often the functions of the washer and dryer will have different capacities, with dryers usually having a lower capacity than a washing machine. The falling dryer can also be loaded up, where the drum is loaded from the top of the machine and the drum end is on the left and right rather than the traditional front and back side. They can be as thin as 40cm.
Maps Clothes dryer
Ventilator
Spinner
This centrifugal machine only rotates their drums much faster than a regular washing machine, to extract additional water from the load. They can remove more water in two minutes from a glass dryer that is heated in twenty, thus saving a lot of time and energy. Although spinning alone will not completely dry clothes, this additional step saves valuable amount of time and energy for major laundry operations such as hospitals.
In some cases, the dryer can use its own spin. A larger gym and pool may have a small spin dryer for the convenience of outgoing customers. Extracting lots of water from a swimsuit reduces the risk of a damp sports bag and then, the laundry hampers.
Condenser dryer
Just as in a normal dryer, the condenser or condenser dryer passes hot air through the load. However, instead of exhausting this air, the dryer uses a heat exchanger to cool the air and condense water vapor into the drain pipe or collecting tank. The air dryer runs through the loop again. The heat exchanger usually uses ambient air as its coolant, therefore the heat generated by the dryer will go into the surrounding environment rather than outside, increasing the room temperature. In some designs, cold water is used in heat exchangers, eliminating this warming, but requiring increased use of water.
In terms of energy use, the condenser dryer usually requires about ~ 2 Kilowatts of energy.
Because the heat exchange process only cools the internal air using ambient air (or cold water in some cases), it will not drain air in the internal loop to low humidity levels like typical fresh air. As a consequence of the increase in air humidity used to dry the load, this type of dryer takes longer time than the traditional dryer. The condenser dryer is a very attractive option where long and complicated ducting is required to vent a traditional dryer.
The heat pump dryer
Closed-cycle heat-cycle clothing dryers use heat pumps to eliminate process air moisture. The dryer typically uses less than half the energy per condenser dryer load. While the condenser dryer using a passive heat exchanger is cooled by ambient air, this dryer uses a heat pump. Hot and humid air from the tumbler is passed through a heat pump where the cold side condenses water vapor into the exhaust pipe or collecting tank and the hot side reheats the air thereafter for reuse. This way the dryer not only avoids the need to distribute, it also saves a lot of heat in the dryer rather than straining it into the environment. Therefore, the heat pump dryer can use up to 50% less energy than either traditional condensation or electric dryer. The heat pump dryer uses about one kilowatt of energy, not 2 for the condenser dryer, or from 3 to 9, for a conventional electric dryer. The domestic heat pump dryer is designed to work in typical room temperatures from 5 to 30 ° C. Below 5 ° C, drying time increases significantly.
Like a condenser dryer, the heat exchanger will not drain internal air to a low humidity level such as ambient air in general. With respect to ambient air, higher air humidity used to dry clothes has the effect of increasing drying time; However, since the heat pump dryer saves a lot of heat from the air they use, hot air can cycle faster, possibly leading to shorter drying times than traditional dryers, depending on the model.
Mechanical vapor compression dryer
New type of dryer in development, this machine is a more sophisticated version of the heat pump dryer. Instead of using hot air to dry clothes, a mechanical vapor compression dryer uses water taken from clothes in the form of steam. First, the tumbler and its contents are heated to 100 ° C. The wet vapor generates the air system cleaning and is the only atmosphere left in the tumbler.
As the wet vapor out of the tumbler, it is compressed mechanically (hence its name) to extract moisture and transfer the evaporating heat to the remaining gas vapor. The pressurized gas vapor is then allowed to expand, and heated before it is injected back into the tumbler where the heat causes more water to evaporate from the clothing, creating moisture and restarting the cycle.
As with heat pump heaters, mechanical vapor compression dryers recycle most of the heat used to dry clothes, and they operate in an efficiency range that is very similar to a heat pump dryer. Both types can be more than twice as efficient than traditional electric dryers. The much higher temperatures used in mechanical vapor steam dryers produce a drying time in half order during which of the heat pump dryer.
Convolute drying
Marketed by some manufacturers as a "static clothing drying technique", the convection dryer consists only of heating units at the bottom, vertical space, and ventilation at the top. The unit heats air at the bottom, reduces its relative humidity, and the natural tendency of hot air to rise brings this low humidity air into contact with clothing. The design is slow, but relatively energy-efficient. Just a little faster than drying the line.
Clothes dryer
The solar dryer is a box-shaped stationary construction that encloses the second compartment where the clothing is held. It uses the sun's heat without direct sunlight reaching the clothes. Alternatively, a solar heating box can be used to heat air driven through a conventional tumbler dryer.
Microwave drier
Japanese manufacturers have developed a very efficient clothing dryer that uses microwave radiation to dry clothes (although most of the Japanese air dries their laundry). Most of the drying is carried out using a microwave to evaporate water, but the final drying is done by convection heating, to avoid the problem of stabbing with scrap metal in the laundry. There are a number of advantages: shorter drying time (25% less), energy savings (17-25% less), and lower drying temperatures. Some analysts think that stabbing and fabric damage is a factor that prevents microwave dryers developed for the US market.
Ultrasonic dryer
Ultrasonic dryer has been proven. They use high-frequency signals to drive piezoelectric actuators to mechanically shake the clothing, releasing water in the form of fog which is then removed from the drum. They have the potential to significantly reduce energy consumption while requiring only a third of the time required by a conventional electric dryer for a particular load. They also do not have the same problems associated with fiber in most other types of dryers.
Hybrid drier
Some manufacturers, namely LG Electronics, have introduced hybrid dryers, which offer users the option of using either a heat pump or a traditional electric heating element to dry the user's clothes.
Static electricity
Clothes dryer can cause static cling, through triboelectric effect. This can be a minor annoyance, and often a textile phenomenon that is too dry to a very low humidity level. The fabric conditioner and dryer are marketed to improve this condition.
History
The hand-putting clothes dryer was created in 1800 by M. Pochon from France. J. Ross Moore, the American inventor of North Dakota, developed a design for automatic clothing dryers during the early 20th century. The design for an electrically operated dryer was developed and released to the public in 1938. Industrial designer Brooks Stevens developed the first electric dryer with glass windows in the 1940s.
Lint build-up (drying machine)
Moisture and fiber are by-products of the falling drying process, and are pulled from the drum by the fan motor and then pushed through the remaining exhaust to the exterior termination fittings. The typical exhaust channel comprises a flexible transition tube found just behind the dryer, a 4-inch (100 mm) stiff galvanized pipe and an elbow fitting found in a wall framing, and a ventilation duct hood found outside the home.
Clean and unimpeded dryer ventilation improves the safety and efficiency of the dryer. Since the drain pipe becomes partially blocked and filled with fiber, the drying time increases and causes the dryer to overheat and wasted energy. In extreme cases, blocked vents may cause a fire. Clothes dryer is one of the more expensive household appliances to operate.
Several factors can contribute to or accelerate rapid fiber formation. These include long or limited channels, birds' nests or rodents in termination, flexed or flexed transect hoses, terminations with screen-like features, and condensation inside the ducts because un-insulated channels run through cold spaces, such as crawl or loft space.
Unvented dryers include multi-stage fiber filtration systems and some even include automatic evaporator and condenser cleaning functions that can run even when the dryer is running. Evaporators and condensers are usually cleaned with running water. This system is necessary, to prevent fibers from constructing in dryers and evaporators and condenser rolls.
Security
Dryers expose combustible material to heat. Underwriters Laboratories recommends cleaning fiber filters after each cycle for energy security and efficiency, adequate ventilation provision, and regular channel cleaning. UL also recommends that the dryer is not used for glass fibers, rubber, foam or plastic articles, or any items that have had flammable material spilled on it.
In the United States, the US Fire Administration in its 2012 report estimates that from 2008 to 2010, the fire department responded to about 2,900 clothing dryer fires in residential buildings each year across the country. This fire generates an average annual loss of 5 deaths, 100 injuries, and $ 35 million in property losses. The Fire Administration linked the "Failure to Clean" (34%) as a major factor contributing to clothing dryer fire in residential buildings, and observed that new home construction trends put clothes dryers and washing machines in more dangerous locations away from the outer walls, such as in the bedroom, second floor hallway, bathroom, and kitchen.
To solve the problem of clothing dryer dryer, fire prevention system can be used with sensors to detect temperature changes when the fire starts in the drum dryer. These sensors then activate the water vapor mechanism to extinguish the fire.
Environmental impact
The environmental impact of clothing dryers is severe in the US and Canada, where more than 80% of all homes have clothes dryers. According to the US Environmental Protection Agency, if all household clothing dryers are sold in the US are energy efficient, "the cost savings of utilities will increase to over $ 1.5 billion annually and more than 22 billion pounds of annual greenhouse gas emissions will be prevented".
Clothes dryers are second only to refrigerators and freezers as America's largest residential electric energy consumer.
In the EU, EU energy labeling systems are applied to dryers; Dryers are classified with labels from A (best) to G (worst) according to the amount of energy used per kilogram of clothing (kWh/kg). The sensor dryer can automatically sense that the clothes are dry and off. This means over-drying is not as frequent. Most European markets sell sensor dryers now, and are usually available in condensers and vented dryers.
See also
- Drying cabinet
- Sheila Maid
- Drying machine washer
- List of home appliances
References
External links
- "What You Should Know About Clothes Dryers." Popular Mechanics , December 1954, p. 170-175, the basic principle of dryer even today.
Source of the article : Wikipedia
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