Thermal application space heating - Solar Heater
With the construction that will show here, can heat a room in winter (the days can be cold but sunny weather, even partial). The
modules are not suitable for heating a space, for the conversion of
solar energy into electricity and then again converted into electrical
energy by thermal means huge losses, making the solution of photovoltaic
inefficient. Here instead, we will convert solar energy directly into heat, warming the air.
The solar air heater (solar heater) is very easy to build and very cheap! Me cost me about 30 Euros in materials and two hours of my time! This
you see here is very small and because of the small surface area is
only suitable for a small space such as a small store a small caravan
etc. (If you put two such collectors). Fabricating but in a larger format (and / or putting more) can heat and proportionately larger areas.
For example, here is the tray is 50cm wide and 100cm in height, that has a surface of 0.5 mA room eg 10 sq.m. takes 1/5 of the surface of a collector, i.e. 2 m solar collectors as the heater it.So for an area of 10 sq.m. they
will make a solar air heater (collector) with a surface area four times
larger than 0.5 m, ie a manifold with dimensions of 2 meters height for
1 meter wide (2 m).For an area of 20 sq.m. they will make two panels with 2 meters high by 1 meter in width each.
The construction
As
shown in the figure above, we construct (or order ready a carpenter) a
frame in the dimensions we want depending on the area they want to heat
(see above). On the front put a mosque (we stick around with transparent silicone).The distance from the timber back to the glass front, should be about 7 cm for every 1 meter of the collector. There will be heated air out of the sun.The ratio of height to width of the collector should be about 2:1.
On the back there should be two openings, one down and one up. Underneath
it enters the wind and cold will be coming from the top opening warm
(hot air is lighter than cold, so it rises and will be leaving the top
open).
In the next photo shows the exposures. I did at the beginning of the cycle to experiment but it is preferable to be rectangular as shown below:
The height of the slit inlet and outlet flow is approximately 6 cm for each meter of the collector. If
for example the height of the collector is 2 meters, then each slit
should have a height of about 12 cm and a width nearly the width of the
collector.
As
we said, the hot air will be coming out with pressure alone, without
the use of fans, from the top outlet as shown in the representation on
paper towels that I made in the next picture.The collector placed outside the wall of the space we want to heat. Open a hole in the wall which communicates with the lower opening of the collector and insulates gaps to prevent leaks.Or joined with a tube thus creating an air duct. From here it enters the cold air of the room.Do the same for the top opening of the collector and the wall of our space. From there it returns the warm air again in most indoor-heated.
Designed to prevent the reverse process at night and cools the space, hang a thin plastic sheet on the top exit. Because it is light, the pressure of the hot air in the outlet and thus pushes the path is not interrupted air. In the evening there is no air movement, the plastic visor disappears and closes the exit.
Computers
(with several complex calculations that are not present) that this
construction achieves almost 1.000 BTU per square meter of collector. I.e. with a collector surface 2 m earn each day (from 10:00 to 16:00) over 10.000 BTU heating in free! 4 m wins over 20.000 BTU. Not bad ... And
then the benefit is even greater if we consider that when you leave the
sun and light a heater, stove or electric heater, they should just keep
an already warm cozy space and not to heat from 13 degrees at 19 (this
implies a significant fuel economy or power).The solar heater can not reach an area of 13 to 14 degrees Celsius to 19 to 20 ° C in two hours.
The first tests
The first test came in January, a day not exactly sunny but with enough sun. The
outdoor temperature was a little over 15 degrees Celsius (the digital
thermometer behind the collector shows 18.4 because there the air is
affected by the temperature of the collector itself).
The collector left for 30 minutes in the sun. With a digital thermometer (and this DIY job) measured the temperature at the inlet cold air and it was 18.4.Immediately after measured the temperature at the exit of hot air was 50.4 degrees Celsius! The solar air heater raised the temperature of the air in his whole by 32 degrees within a few seconds!
So works and very efficiently. His
performance certainly went up a bit, after I hung and stretched a black
metal screen (like the one we put in windows for insects) within the
frame and in half the distance from the back to the window. Because
it is black and metallic, heated very quickly and transmits its heat to
the air passing over and beside her as he climbs up to find the exit
onto the frame.
Applications
The applications are numerous: a small scale can heat a small space such as a camper, a small workshop or garage etc.On
a large scale, we can imagine the entire south side of a house
"dressed" with such panels will give 100.000 BTU each day indoors,
warming day and saving fuel in the afternoon (since when you get into
the heater, the space will is already at room temperature).Because construction costs are low, the damping becomes very quickly. In terms of aesthetics, if done right job, the result is beautiful. What appears is a black glass surface, where else would seem the wall behind the glass panels.There are ways to store heat provided by the solar collector. But add in complexity and will not linger here. Illustrative only: the convection of hot air can be directed onto a large diameter column containing water. The water will warm up much, but it slowly releases that heat till late in the evening, after sunset.Below you will find other articles that interest you, divided into three sections ...
The
modern way of life-force us the use of various home cleaners,
which are sometimes harmful and dangerous for the environment and for
us. Speech time rush and convenience sacrificing our health. The easy and safe cleaning, supposedly offering chemical detergents, has serious consequences. The chemical detergents poison water and kill fish, birds and animals. Even for the user's health can be dangerous to use the chemical detergents. The
strong odors, for example, liquid dishwashing, floor cleaners and air
fresheners may contain chemicals which cause cancer and liver disease. Childhood allergies have proliferated over the last 30 years. This is largely due to increased use of household chemicals.Striving
for a more natural home cleaning our health benefits of our family, in
particular of children, their growth is damaged by contact with
chemicals. Save more space and money, simplify our lives and helping the environment. Rivers and groundwater, and wildlife benefit from the reduction of household chemical waste. Among the household detergents, are more toxic oven cleaners, drain and toilet bowl. H caustic soda is dangerous for the environment and the user.
Universal cleaner for home:Dissolve and mix half a cup of vinegar and 1/4 cup baking soda in two quarts of warm water. The solution is maintained for a long time and cleans windows, mirrors, the calcium deposits in faucets and ceramic tiles. The vinegar used to remove fat and mold. Grease can still use and lemon juice. We use baking soda as a scouring powder, and strengthen it if necessary mixing with vinegar.
Glass cleaner:Dissolve and mix two tablespoons of vinegar per liter of hot water and clean the windows using our old newspapers. Even with the same solution can clean ceramic tile and plastic surfaces such as the inside of the refrigerator.
For dishwashing:Green or white olive oil soap. Grated olive soap, dissolved in hot water, used for general cleaning, washing dishes, mopping floors and on course for laundry. For stubborn stains, add a little vinegar.
For the oven: Prepare a mixture viscous cream soda and a little water and brush the surfaces of the oven to be cleaned. With a sprayer, spray with water when the soda starts to dry out to keep the liquid. Repeat several times because the soda must be fluid to action. Finally wipe with a cloth and remove the soda and debris. Beware your oven must be closed and cold.
For these salts from the kettle of water:Boil in half a cup of vinegar in two cups of water. Rinse thoroughly with warm water while kettle is still warm.
To clean the toilet bowl and drains: Half a cup of baking soda and half a cup of vinegar. The chemical reaction that follows breaks down fat into soap and glycerin and cleans drains. After 15 minutes, pour in boiling water to rinse off residues. CAUTION: Do not pour large quantities of hot water because the plastic pipes can melt. Also,
do not use this method if you have previously shed commercial
preparations obstruction, because in combination with vinegar created
dangerous anathymiaseis.I baking soda mixed with water dissolves dirt
and oils in textiles and clothing. Lemon juice mixed with salt is ideal to clean rust and grease. The tea tree oil is dissolved in water is very good antibacterial for cleaning the mold in the bathroom.
For cleaning carpets: The proper cleaning of carpets during their use is vacuuming. Before
storing them in the summer, turn the rug upside down and press it
before you clean as you will feet and the normal side of the pile. In this way will drop much of the dust that has entered into the base of the carpet and thus cleaned better.For cleaning of your carpet using 3 parts of warm water and one part of white vinegar. With a soft brush and some of the solution (not to much moisture left in your carpet), brush your carpet only towards the pile. Dry the carpet in shady and cool place and not directly in the sun to not alter the colors.Similarly you can use to freshen the colors of your carpets periodically with a single swipe with a cloth.
Instead of the toxic air fresheners: Use
herbs or essential oils because they are herbal products disinfect and
clean scent every corner of the house and some of them such as mint or
lavender and verbena are the best repellents.
Best for cleaning are:Grapefruit, lemon, lavender, orange, cypress, verbena and rosemary.Most suitable for disinfection are:Grapefruit, the tea tree, thyme, lemon, lavender, eucalyptus, bergamot, verbena. Brightening lemon, grapefruit, polish cedar, sandalwood, cypress and dazzling white sage.
Best deodorants and perfumed are:All citrus, rose, geranium, lavender, rosemary, eucalyptus, and marjoram. You
can use either infusions (boil the herbs, drain and use the water) or
by adding 4-5 drops of essential oils in a liter of water.
To annihilate cockroaches:Place baking soda with a little sugar in a small saucer and put in cupboards, behind the refrigerator or frequented.Another method to drive away ants and biting insects is to take essential insect lavender or plain vinegar've frequented.
If
you are considering replacing the existing industrial steam boiler
(currently running on LPG or diesel) with a biomass boiler, and then
consider the production of electricity of high pressure steam or
excess biomass. It offers you great financial benefit.Again
if your company already uses biomass boiler, you can use any excess
biomass for electricity generationwith great financial benefit.The
American production technology green electricity from the company
CARRIER (18 MS Microsteam turbine) and the GE (General Electric Clean
Cycle 125) can help you increase the revenue your industry.Specifically,
using the differential pressure steam boiler biomass steam turbine of
Carrier (18MS Microsteam turbine), rather than consume energy in the
pressure-reducing valve, can produce up to 275 KW of green renewable
electricity. The electricity generated is sold to network administrator at great financial benefit up to 500,000 euros / year.Also
excess or remaining biomass is burned in boiler biomass can supply heat
machine of GE (General Electric Clean Cycle 125 KW), which works with
the cycle ORC (Organic Rankine Cycle), producing electrical energy for a
correspondingly large economic benefit, up to 230,000 euros / year per machine.
Could you wash your dishes without giving a lot of money? Yeah! And if the phrase sounds like a detergent advertisement, only this detergent you build yourself.
According to the blog "Our food in our medicine", with this formulation your dishes come out clean and shiny!
You will need:
• Two cups of bicarbonate of soda (baking) - 1,2 euro ( washing soda does too)
• Two cups borax - 1 euro (from drugstore/ pharmacy)
• Four tablespoons sour (citric acid) - 1 euro
It will cost 3.2 euros for 32 washes ... which means 0.10 euro per wash!
To make this mixture you have to shuffle your materials in a bowl and store in a jar - for each wash (without pre-wash) use a tablespoon of your mixture in the case of the tablet or liquid . For dazzling, use vinegar!
