Posts Tagged Antifreeze

The Best Active Solar Water Heating Systems

Posted by outside_voices on Tuesday, 16 February, 2010

There is perhaps no more economical as well as cost beneficial way to make use of renewable technology than by opting to use an active solar water heating system. Such a system will help in significantly bringing down the need to use traditional water heating systems and does so by about as much as two-thirds. In addition, an active solar water heating system will cut your electricity or fossil fuel bills and more importantly will improve the environment by cutting out pollution.

Electric Pumps, And Collectors

An active solar water heating system relies mainly on electric pumps that along with collectors that circulate water or other fluids and together these two components round off the main components of the system. As a matter of fact, there are also three distinct types of active solar water heating systems that are worth knowing more about.

The first kind of active sun-powered water heating system is the one known as direct-circulation system in which a pump circulates pressurised as well as drinkable water straight thru collectors. Such types of systems are well matched for use in areas where there’s not much or no freezing and where the water isn’t hard or perhaps acidic. such active solar water-heating systems haven’t been given approval by Solar Rating & Certification Firm , particularly in case such systems also employ protection from recirculation freeze which needs use of electricity to make sure that the protection is effective.

The other sort of active solar water heating system is the indirect circulation systems which are further categorized as antifreeze and drain back systems. The antifreeze indirect active solar heating system uses a mix of glycol and water while the drain back indirect active solar water-heating system gets use out of pumps to circulate water through collectors and which also suggests that water in collectors loop drains into reservoir tanks whenever the pump stops working.

The drainback indirect active solar water heating system is best suited in places where the climate is especially cold though such a system does also require to be installed very carefully to ensure that the piping is made to slope in a downward direction at all times so as to allow the water to completely drain out from the pipes. This however is not all that easily achievable.

An active solar heating system is a commonsense answer to keeping a home or building warm and in reality, usually such systems are used to provide between 40 and 80 % of heating wishes of a home. Systems that provide less than 40 % of the heating necessities are not cheap and so must be evaded as much as feasible.

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Evans D. Smith

Solar Power Water Heating – Using Sun Lights

Posted by outside_voices on Thursday, 31 December, 2009

Changing over to solar electricity water heating takes some research to be sure the right water heating unit is being installed for the climate in which the individual lives. The bulk of the solar energy water heating units are engineered to work best in climates where is doesn’t fall to freezing temperatures much, if any, in the course of the year. The cause of the reason is because the water in the pipes of the system will freeze and damage the system, as the sun’s rays aren’t enough in freezing temperatures to keep it moving through the pipes without freezing. These solar energy water heating systems are efficient way of heating the water supply for a home or for commercial use, and also can be employed for solar pool heating, so saving costs and the environment.

Types of Materials and Systems

One piece of apparatus that all solar electricity water heating systems need is the solar collector which boosts the sun’s rays and converts them to energy. There are 3 differing types of solar collectors on the market today. The 1st is the flat plate collector that has a glaze on it and is insulated. They contain a plate that is intended to soak up the sun’s rays and lies underneath one cover plate, which is generally made from either plastic or glass, though with pool plates they’re regularly made from metal. Another sort of collector in solar energy water heating is the integral collector or batch system. In this system the water passes thru the tubes that are contained in an insulated, glazed box which collects the daylight and preheats the water. The 3rd system uses abandoned tube solar collectors, and is mostly only employed in commercial settings.

There are two basic types of systems in solar power water heating: active and passive.  The active systems have a sort of pump that moves the water or the antifreeze through the pipes so that it can be heated by the collection plates.  The passive systems hold the water in a collection container where the solar panels are so that it can be heated and then move by way of the hot water rising to the top, into the storage tank.  Each system has its benefits, with the active systems being more effective at heating the water and the passive systems typically lasting longer and being more reliable.  Both systems use a backup heater in the storage tank so that it can be used when there are a series of cloudy days outside and the water cannot be heated by the sun.

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Evans D. Smith

Wind Energy Generator – One Of The Cleaner Methods

Posted by outside_voices on Thursday, 31 December, 2009

Solar powered water heating systems come in 2 basic types, each of which can be useful to the subject’s business or home setting in that they save on energy bills related to the employment of hot water. All these systems also have a backup heater so the water can be heated at points when there is not any daylight to be found to do the job. This is particularly crucial in climates that have many cloudy days in the winter months since no family wants to need to spend their days washing or cleaning without hot water. The active sun-powered water heating units are generally utilized in chillier climates, particularly the one that uses antifreeze in the pipes to act to warm the water in the storage tank. Passive solar water-heating units are sometimes employed in hotter areas where the temperatures don’t drop below freezing for at least one or two hours in the night in winter time.

How It Works

A passive solar heating system comes in two basic types. There’s the integral collector passive sun-powered water heating system which is employed only in areas where the temperatures don’t reach freezing. There’s also the thermosyphon system which is employed in a little chillier climates but still not those where the temperatures fall below freezing on a consistent basis. This system is the dearer of the 2 passive solar water-heating systems to use.

When the system is installed, the roof needs to be checked to make sure that it will hold the storage tank, which is very heavy with the weight of the water inside of it.  In addition, there must be room for the collector to be lower than the storage tank so that the hot water can rise up into the tank and the colder water stay in the collection tank.  The way the passive solar water heating system works is that the cold water begins in the collection tank where the solar panels are to collect the heat from the sun.  As the water gets warmer, it is pushed to the top of the collection tank and is forced through the pipes into the storage tank where the backup water heater is also stored.  From the storage tank the water travels into the home whenever the hot water is needed.

Although the passive solar water heating systems are usually more reliable and can last longer than the active systems because there are less motorized parts, they also are not as efficient as the active systems since the water is not being moved past the panels to heat it more quickly.

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Evans D. Smith

Home Wind Energy – One Of The Green Energy Solutions

Posted by outside_voices on Tuesday, 29 December, 2009

There are different types of solar water heating systems that are on the market that will work in a variety of different climates.  If the climate is especially cold in the winter months, then there is really only one type of active solar water heating system that will work so that the water does not freeze, but the one that does work in that type of climate does a great job.  Since hot water is used in so many different household tasks, such as washing dishes and clothes and taking showers, it can cause a burden on the energy that is needed for the home.  Often water heaters are not well insulated so that the heater constantly has to work to supply all of the hot water that the home needs.  Having a solar water heating system allows the sun to do the work to heat the water so that the electric or gas bill can go down and the other natural resources of the earth can be preserved.

How It Works

There are 2 main types of sun-powered water heating systems, which utilise some type of sun-powered water heating panel that collects the sun’s rays and converts them into heat for the water. In an active, closed loop solar heating system, the flat plate collector works to gather the sun’s rays. The antifreeze liquid runs in the collector loop only so it doesn’t contaminate the water supply. It is heated in the collector plate, then runs thru the collector loop thru the coils in the water collection tank to heat the water that’s stored there, and then runs back out into the plate collector again for warming up. The tank also has a back up water heater in case there isn’t enough daylight to completely warm the water supply. The hot water then runs from the storage container into the home for nice hot water in the washer, dishwasher or shower.

In a passive sun-powered water heating system, the method is a tiny different. In this example, the water comes from the cold water supply and runs into the batch collector unit that has the solar cells which warm the water. When the water is heated, it is going to the apex of the batch collector and is pushed out and into the storage tank which has the backup water heater. This system isn’t customarily as good as the active systems, but a sort of passive system is what is mostly used to heat swimming pools or other massive water supplies. Each sun-powered water heating system has to have a backup heating unit in the storage tank so that when there are a sequence of cloudy days, the home can still have all of the hot water that’s required.

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Evans D. Smith