Basic Info.Model NO.CLE-SH-01 seriesAfter-sales ServiceYesWarranty2
YearsCertificationISO, CEConcentratingYesWorking Temperature
RangeMedium TemperatureTypeVacuum Solar CollectorApplicationSolar
ThermalPipe MaterialGlassTransport PackageWoodenOriginChinaProduct
Description Heat Pipe TechnologyHeat pipes act like a
low-resistance thermal conductor. Due to their thermal-physical
properties, their heat transfer rate is thousand's of times greater
than that of the best solid heat conductor of the same dimensions.
GIC's SEIDO heat pipe is a closed system comprised of two meters of
copper tubing, an evaporator section, a capillary wick structure, a
condenser section and a small amount of vaporizable fluid. The heat
pipe employs an evaporating-condensing cycle. The evaporator
section is tightly bonded to the absorber plate, where it captures
the heat from the absorber and evaporates the liquid to steam,
which moves up to the condenser section. The condenser protrudes
out from the evacuated tube and is inserted into the heat exchanger
manifold. There this steam will be condensed by water flowing
through the manifold. Latent heat energy will be released to the
process water through this phase change of vapor to liquid. In
vacuum tube solar collectors, the condensation zone is at a higher
level than the evaporation zone. The transport medium condenses and
returns to the evaporation zone under the influence of gravity.
This process is repeated continuously thereby heating the water in
the solar loop.Selective CoatingThe absorber is treated with an
aluminium-nitride selective coating to achieve highest efficiency
of the heat transfer. The coating is applied using a magnetic
sputtering technique. This special optical coating transforms more
than 92% of the incoming solar irradiation into heat.Heat Pressure
Sealing and EvacuatedHeat pipes are inserted into the aluminium
absorbers forming assemblies, which in turn are inserted into the
glass tubes. The tubes are made of borosilicate glass which is
strong and has a high transmittance for solar irradiation. In order
to reduce the convection heat loss, glass tubes are evacuated to
vacuum pressure of
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