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*For a simple line drying arrangement (rope and clothes pins) the [[repair]] and replacement [[costs]] are about $20.00 per 1,000 loads of laundry or 2¢ per load. For non-commercial mechanical clothes drying the repair and replacement costs (including labor expenses) are about $200.00 per 1,000 loads of laundry or 20¢ per load.
 
*For a simple line drying arrangement (rope and clothes pins) the [[repair]] and replacement [[costs]] are about $20.00 per 1,000 loads of laundry or 2¢ per load. For non-commercial mechanical clothes drying the repair and replacement costs (including labor expenses) are about $200.00 per 1,000 loads of laundry or 20¢ per load.
   
By line-drying 1 laundry load per week, you will [[reduce]] your [[green house gases]] by 94/5 pounds and your [[energy]] [[cost]] by $1.40 after one month, you will also save 47/1,875 gallons of [[oil]], a 752 cubic meter [[lake]] and 188/1,875 acres of [[soil]] from being polluted, 7,383/35,250,782 tons of [[air pollution]] per year, 2 kilograms of [[co2]], 8/5 square feet of natural [[habitat]] potential, 2/3 kilograms of [[fossil fuels]], 1/3 kilograms of [[carbon monoxide]], 1/15 kilograms of [[nitrogen oxide]], 6/11 kilograms of [[carbon]], 24/5 kilograms of [[life]], 17/300 kilograms of [[solid particles]], 1/69 tons of [[soda ash]]
+
By line-drying 1 laundry load per week, you will [[reduce]] your [[green house gases]] by 94/5 pounds and your [[energy]] [[cost]] by $1.40 after one month, you will also save 47/1,875 gallons of [[oil]], a 752 cubic meter [[lake]] and 188/1,875 acres of [[soil]] from being polluted, 7,383/35,250,782 tons of [[air pollution]] per year, 2 kilograms of [[co2]], 8/5 square meters of natural [[habitat]] potential, 2/3 kilograms of [[fossil fuels]], 1/3 kilograms of [[carbon monoxide]], 1/15 kilograms of [[nitrogen oxide]], 6/11 kilograms of [[carbon]], 24/5 kilograms of [[life]], 17/300 kilograms of [[solid particles]], 1/69 tons of [[soda ash]]
   
 
===Disadvantages of using a clothes line===
 
===Disadvantages of using a clothes line===
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*Neighbours may find it aesthetically unpleasant[1]
 
*Neighbours may find it aesthetically unpleasant[1]
 
*Risk of theft or vandalism of clothes
 
*Risk of theft or vandalism of clothes
*Environmental contaminants such as [[soil]], dust, [[smoke]], automotive or industrial pollutants, pollen and bird and animal droppings can come in contact with clothing.
+
*Environmental contaminants such as [[soil]], [[dust]], [[smoke]], automotive or industrial pollutants, pollen and bird and animal droppings can come in contact with clothing.
 
*Clothespins can leave imprints (including rust from the spring) on the clothes.
 
*Clothespins can leave imprints (including rust from the spring) on the clothes.
   
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[[Category:Fossil fuel conservation]]
 
[[Category:Fossil fuel conservation]]
 
[[Category:Life conservation]]
 
[[Category:Life conservation]]
[[Category:Particle conservation]]
 

Revision as of 00:18, December 3, 2012

365- Clothes on the line

Clothes line

A clothes line or washing line is any type of rope, cord, or twine that has been stretched between two points (e.g. two sticks), outside or indoors, above the level of the ground. Clothing that has recently been washed is hung along the line to dry, using clothes pegs or clothes pins. Washing lines are attached either from a post or a wall, and are frequently located in back gardens, or on balconies. Longer washing lines often have props holding up sections in the middle due to the weight of the clothing.

More elaborate rotary washing lines save space and are typically retractable and square or triangular in shape, with multiple lines being used (such as the Hills Hoist from Australia). Some can be folded up when not in use (although there is a hazard of getting fingers caught, so there is usually a safety button).

In Scotland, many tenement buildings have a drying green which is a communal area predominantly used for clothes lines - it may also be used as a recreational space.

Comparison

Advantages of a clothes line

  • Saves money
  • Zero greenhouse gas emissions per load (2 kg of greenhouse gas emissions from the average mechanical clothes dryer per load)
  • Laundry smells "clothes-line fresh" without using chemicals
  • Less fabric wear and tear
  • Laundry items do not shrink (hot air from a mechanical clothes dryer may shrink items)
  • No static cling
  • Laundry items stay softer to the touch (mechanical clothes dryers tend to remove short, soft, fine fibers), and may be less wrinkled
  • Avoids the potential of airborne lint and reduced air quality
  • Eliminates the noise from a mechanical clothes dryer
  • Does not vent to the outside and waste the large volume of conditioned (heated or cooled) indoor air that a mechanical dryer's blower does.
  • For a simple line drying arrangement (rope and clothes pins) the repair and replacement costs are about $20.00 per 1,000 loads of laundry or 2¢ per load. For non-commercial mechanical clothes drying the repair and replacement costs (including labor expenses) are about $200.00 per 1,000 loads of laundry or 20¢ per load.

By line-drying 1 laundry load per week, you will reduce your green house gases by 94/5 pounds and your energy cost by $1.40 after one month, you will also save 47/1,875 gallons of oil, a 752 cubic meter lake and 188/1,875 acres of soil from being polluted, 7,383/35,250,782 tons of air pollution per year, 2 kilograms of co2, 8/5 square meters of natural habitat potential, 2/3 kilograms of fossil fuels, 1/3 kilograms of carbon monoxide, 1/15 kilograms of nitrogen oxide, 6/11 kilograms of carbon, 24/5 kilograms of life, 17/300 kilograms of solid particles, 1/69 tons of soda ash

Disadvantages of using a clothes line

  • Putting laundry on a line usually takes more time than putting it into a mechanical dryer (as laundry items have to be hung up and fixed one by one).
  • Laundry items need to be hung indoors during rainy weather, or may get wet if the weather changes.
  • Neighbours may find it aesthetically unpleasant[1]
  • Risk of theft or vandalism of clothes
  • Environmental contaminants such as soil, dust, smoke, automotive or industrial pollutants, pollen and bird and animal droppings can come in contact with clothing.
  • Clothespins can leave imprints (including rust from the spring) on the clothes.

Drying laundry indoors

Laundry may be dried indoors rather than outdoors for a variety of reasons including:

  • inclement weather
  • physical disability
  • lack of space for a line
  • legal restrictions
  • to raise the humidity level indoors, and lower the air temperature indoors
  • convenience, or preserve privacy

Several types of devices are available for indoor drying. A drying rack or clotheshorse can help save space in an apartment or clothes lines can be strung in the basement during the winter. Small loads can simply be draped over furniture or a shower curtain pole. The drying time indoors will typically be longer than outdoor drying because of the lack of direct solar radiation and the convective assistance of the wind.

The evaporation of the moisture from the clothes will cool the indoor air and increase the humidity level, which may or may not be desirable. In cold, dry weather, moderate increases in humidity make most people feel more comfortable. In warm weather, increased humidity makes most people feel even hotter. Increased humidity can also increase growth of fungi, which can cause health problems.


An average-sized wash load will convert approximately 3165 joule of ambient heat into latent heat that is stored in the evaporated water.

To determine how much heat has been converted in drying a load of laundry, weigh the clothes when they are wet and then again after the clothes have dried.

The difference is the weight of the water that was evaporated from them. Multiply that weight in kg by 2,257, which is the heat of vaporization per kilogram, to obtain the number of Kjoules that went into evaporating the water, or multiply by 625 to get watt-hours.

(Note: If the moisture later condenses inside the house, the latent heat will be converted back into ambient heat which could increase the temperature of the air in the room slightly.)

To obtain a good approximation of the effect this would have in a particular situation, the process can be traced on a psychrometric chart.

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