The principle of vacuum radiators and their true benefits
now appeared on the market a completely new type radiators.Manufacturers and sellers claim that they are able to do just wonders.This vacuum radiators, the principle of which we will analyze in detail and in a given material, and consider whether they are effective as assured manufacturers.
- the vacuum radiator
- The principle of operation of the vacuum heater
- believe any advertising, touted Vacuum Tubes heating
the vacuum radiator
In general, nothing complicated in its construction there.The radiator is made up of metal sections.Instead, the water in the bay is lithium bromide solution boils already at plus 35 degrees Celsius.Air from sections completely evacuated to reduce the internal pressure.Bottom collector radiator flows hot water coming from the heating system.It should not come into contact with the coolant, and contact occurs only through the metal surface of the pipe.It made the pipe (as entire radi
the vacuum radiator.
principle of operation of the vacuum heater
hot water coming from the heating system in the lower part of the radiator (connected to the heating system using standard couplings), transfers heat lithium bromide liquid.She quickly begins to evaporate, warming all sections of the radiator.The condensate flows down, and then again turning to steam rises.Thus, the outer wall of the pipe bordering coolant is constantly cooled.And the temperature difference between its inner and outer surface of the heat flow increases.
Section radiator for a couple of minutes, warmed by hot steam, give off heat to the surrounding air.Moreover, according to the manufacturer, it happens instantly.Declared heat of one section of the device - 300 watts and it uses very little water.These are serious numbers - then try to figure out whether this is so.And also check how beautiful the new heaters.
Video: The principle of vacuum radiators
believe any advertising, touted Vacuum Tubes heating
We will try to approach this issue thoroughly and objectively as possible, taking as a basis only proven facts.Here we consider each of said data producer advantages radiators.So began.
1. constantly advertised characteristic of vacuum lightning while heating radiators.Well, let's say.But not so fast warm up the whole house.After all, it is not alone the air, but walls, interior partitions with furniture, ceiling to floor.On their heating to a certain time.And why is not so important, a minute or five will bask in the radiator.
2. Now a small amount of coolant that supposedly is very economical.That's just the question - where it appears the savings.If the central heating system, it is a mere bluff - is not so important, more hot water will flow through the pipes or less.If we take the country cottages, the economy, and it is questionable, given that the same modern panel radiators also require not so much coolant
3. the radiator vacuum type can not appear air pockets.This enthusiastically broadcasts advertising.But radiators - is not the whole heating system, but only part of it.By the way, traffic jams occur only when the system is assembled wrong.Otherwise they will not be any radiators.
4. Two fat plus, which saluted manufacturers.It is impossible to clogging radiators and corrosion.Perhaps for autonomous heating systems, these advantages are unlikely to be quite so bold.If hot water in the heating net, its acidity level conforms to and from the system, it is not emptied, no corrosion will not.And clog take nowhere.
5. About low hydraulic resistance, ostensibly dramatically reduces the cost of heating the article, let's say.For district heating is not clear at all, whose costs have in mind.Is that the owners of boiler plants, hundreds of kilometers of distilled tons of hot water.The benefits obtained may be used only with autonomous heating system and it is still a question whether it can be.And for the autonomous system in his house, many are using the natural circulation of the coolant, so that the question is irrelevant.
6. next stop will save energy by half, or even quadrupled.With this Oshibochka out, as the law of conservation of energy is still in force.Radiators, even the most innovative, can not produce energy.They just pass it, and the savings can not speak.How many took the heat, so must be replenished - just like that.
7. Now touch the heat transfer of vacuum tubes, which, as shown by certificates of manufacturers, is not stable.This figure may be deviations of up to 5 per cent in large and smaller side.It appears from this rate of water in the heating system depends, and on its temperature.So it is hardly possible for such automatic radiator adapt.A two radiators with an equal number of sections may have different parameters.
8. Separately say about the heating systems in private homes where the water circulates in a natural way.Here important hydraulic head created by the difference in height of hot water boilers and radiators.Now, vacuum-type devices, this height is much less so in a system they work with problems.
9. Now imagine that in the case of a radiator there was a crack.Even if it is tiny, you can forget about the vacuum.Leave it forever, and restore normal atmospheric pressure.And it, in turn, lead to an increase in the boiling point of the coolant.The result would be disastrous - almost any liquid has evaporated, or steam does not appear.In short, the radiator heat stop.
10. By the way, this wonderful (the assurance of vendors and advertisers) lithium-bromine liquid is also still poisonous, is.So what radiator coolant leakage will be cold, but not so bad.Worse, if the battery be worn out, for example, at night, sleeping poisoning residents of the apartment.
So it is perhaps not always worth to trust advertising, so compelling at first glance.
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