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## Zonneboilers

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### Specialized in the installation of solar panels, solar water heaters with the highest efficiency of solar energy. Price Solar. Cost solar panels info? Installer of solar panels and solar water heaters. – PowerPoint PPT presentation

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Title: Zonneboilers

1
A solar water heater, how does that work?
2
• Let us take the example that everyone knows, a
hose full of water for a while in the
sun. Gradually heats the water in the hose on. We
now put a glass tube around, it can even boiling
hot water. Well, the same principle is used in a
solar water heater.

3
• Generally you a collector of 1m ², which to the
south is directed and an inclination of 45 ,
about 50 liters of water heating. Calculation of
the total collector area that you need will
depend on the insolation level (climate,
orientation) and the number of users. This
calculation is part of the MiNi Power for
study. generally assumed that the average person
between 40 and 60 liters of hot water per day
consumed. An average family of 4 will be a
storage need of approximately 200 liters and a
collector ar

4
• In Belgium the sun at an average annual capacity
of approximately 1,000 kWh per m², which
corresponds to the energy value of about 100
liters of fuel oil or 100 cubic meters of natural
gas.  In a correctly sized system, we can cover
up to 60 of the annual energy for domestic hot
water.  Even with diffuse sunlight may be a high
energy place in the vacuum tubes. In the spring
or fall and even in winter there are days enough
to take advantage of water warmed by the sun.

5
Schema

6
Collectors
• The solar collector captures the sunlight and
converts it into heat. The collector transfers
the heat to a glycol by liquid, this liquid
circulates in insulated piping between the
collector and the storage tank. The liquid is
contained in the collector the heat to the water
in the storage tank. The cooled liquid is then
pumped back to the collector to re-heat. We can
distinguish two types of collectors
•  Flat-plate collectors the absorber consists of
a black metal plate on which copper tubes are
mounted. These tubes are parallel or helically
mounted.  Vacuum tube collectors , the absorber
consists of vacuum tubes in glass with a black
metal tube inside which a heat transfer fluid
passes through.

7
• MiNi Power insert collectors which make use of
the "heat-pipe" technique. The cream of the crop
in the vacuum tube collectors.
• A heat pipe is a transport mechanism that large
amounts of heat can move.  In a heat pipe, there
is a transport medium, which is on the hot side
evaporates, whereby the energy absorber, and act
as gas moves to the cold side.  Here it will
condense and are heat certificates to the
condenser.  This is the top of the solar
collector, and then again after cooling back to
the warm side.

8
Storage vessel
• The storage ensures that the heat is kept until
the time that hot water is needed.  The hot water
that you get out of this storage, is immediately
replaced by the same quantity of cold water from
the pipe, which in turn is heated by the heat
transfer fluid from the primary circuit.  With
sufficient sunlight in the summer, the solar
collectors to the water in the storage easily
warm to above 80 C. To burn the warm water to
prevent the sanitary hot water output a mixer
installed.  The storage tank is highly insulated
metal tank, MiNi Power uses only stainless steel
vats with high density polyurethane insulation
45mm. This stainless steel storage tank is the
reserve of hot water.

9
The collector circuit
• Heat transport is the responsibility of the
primary circuit. This circuit is hermetically
sealed and heat insulating and includes the heat
transfer fluid. This fluid heats up while passing
through the tubes of the collector is running,
and is then diverted to a storage vessel.  again,
the heat release is performed by a heat exchanger
(coil pipe) in the storage tank. Here the liquid
its solar alter the sanitary water (secondary
circuit). The cooled primary water goes back to
the collector where it is heated again as long as
the sun shines.  To freeze the solar fluid to
prevent a non-toxic mixture of water and
glycol. This fluid provides freeze protection to
-25 C and can withstand high temperatures. This
allows the system even in winter correctly.

10
The control and pump unit
• The primary fluid may circulate in different
ways
• naturally (without a pump), the heat transfer
fluid circulates, thanks to the density
difference with the water in the storage
vessel.As soon as this liquid is warmer, and thus
a lower density than the water in the vessel, it
will start to rise in a natural way by
thermo-circulation. The vessel must be placed
higher than the collectors.  That is the
principle on which the thermosyphon solar water
heaters based, which is usually found in southern
Europe.
• in forced manner (under pressure) a small
electric pump, circulation pump, transfers the
heat transfer fluid in motion when 8 C warmer
than the hot water in the storage tank. The pump
is controlled by a control system that operates
on  the basis of temperature differences when
the sensor of the container is warmer than that
of the collector, the system will stop the
circulation pump. In the other case, the
circulation pump again put in motion and the
primary fluid heats the domestic water from the
barrel again.

11
How the lack of sunlight catch?
• In summer the solar vouch for the entire hot
water production, but in the winter or during
long periods of bad weather sufficient solar
energy is not only for the production of all hot
water. Therefore, most storage vessels equipped
with an auxiliary system that takes up the torch
and still guarantees the supply of hot
water. This is usually done by
• a resistor (electrical assistance), which often
is located at half the height of the storage
vessel.
• a heat exchanger (hydraulic support) that is
connected to an auxiliary source of heat. In most
cases, is that the boiler of the central heating
system.
• In a dual-boiler is the heat exchanger for
reheating at the top of the container. In this
way, the reheating is not the whole reservoir to
heat. A storage tank with a heat exchanger is
placed on the existing boiler which then allows
for reheating.

12
• Specialized in the installation of solar panels,
solar water heaters with the highest efficiency
of solar energy. Price Solar. Cost solar panels
info? Installer of solar panels and solar water
heaters.
• http//www.mini-energietechniek.be