The advantages of energy efficient windows are:
- The insulating glass is made of two or more layers of flat glass.
Surrounded by high strength and high air tightness compound
adhesive, two or more pieces of glass are sealed and sealed with
sealing strip and glass strip. The middle is filled with dry gas,
and the inside of the box is filled with desiccant to ensure the
dryness of the air between the glass sheets. Glass may be selected
according to the requirements of various properties, such as clear
float glass, embossed glass heat absorbing glass, heat reflective
glass, laminated glass and tempered glass and the frame (or
aluminum frame glass etc.), by cementation, welding or welding.
The structure is shown as a double layer hollow glass section.
Hollow glass can adopt 3, 4, 5, 6, 8, 10, 12mm thick slice original
piece glass, the air layer thickness may use 6, 9, 12mm intervals.
The thermal conductivity of the glass is 27 times that of the air.
As long as the insulating glass is sealed, the insulating glass is
in the best heat insulation effect.
There is some space between the glass and the glass of the
insulating glass. The frame is filled with desiccant to ensure the
dryness of the air between the glass sheets. The spacing between
the two layers of insulating glass is usually 8mm.
High performance hollow glass is different from ordinary insulating
glass, except at the middle of the two layers of glass sealed in
dry air, but also on the outside of the glass in the middle layer
of air side, special coated with a layer of thermal performance of
metal film. It can cut off considerable energy from the sun into
the room and achieve greater thermal insulation.
Because the hollow glass exists can adsorb water molecules
desiccant, gas is dry, the temperature is reduced, the internal
hollow glass does not produce condensation phenomenon, at the same
time, the outer surface of the hollow glass dew point will rise.
Such as when the outdoor wind speed is 5m/s, the indoor temperature
of 20 degrees Celsius, relative humidity is 60%, 5mm glass in the
outdoor temperature to begin condensation 8 DEG C, and 16mm (5+6+5)
hollow glass under the same conditions, the outdoor temperature is
-2 DEG C when condensation, 27mm (5+6+5+6+5) three layers of glass
at room temperature outside -11 C before condensation.
There are three ways of transmitting energy in insulating glass:
radiation transfer, convection transmission and conduction
Radiative transfer is the transmission of energy through radiation
in the form of radiation, which includes visible, infrared and
ultraviolet radiation, as does the transmission of solar rays.
Reasonable allocation of insulating glass and reasonable insulating
glass interlayer thickness, can maximize the reduction of energy
transmission through the radiation form, thereby reducing the loss
Convection is due to a temperature difference between the two sides
of the glass, which causes air to fall on the cold side and rise on
the hot side, causing convection of the air and causing energy
loss. There are several reasons for this phenomenon: one is the
poor sealing frame system and the surrounding glass, causing gas
exchange inside and outside the window can directly cause
convection, leads to the loss of energy; the two is to design the
internal spatial structure of the hollow glass is not reasonable,
resulting in the air in the hollow glass convection due to
temperature difference. Driven by the energy exchange, resulting in
energy loss; three is the temperature difference between inside and
outside the structure of the whole system window is larger,
resulting in hollow glass, the temperature difference between
inside and outside is large, cold radiation and heat conduction
through air, first produced convection on both sides of the
insulating glass, hollow glass and then through the whole transfer
in the past, the formation of energy loss. Reasonable insulating
glass design can reduce the convection of the gas, thereby reducing
the energy convection losses.
Conduction transfer is through the object molecular motion, driven
by the energy movement, to achieve the purpose of passing, like
iron rice and electric soldering iron things, and the energy
transfer of conduction insulating glass is accomplished by glass
and its internal air. As we know, the thermal conductivity of glass
is 0.77W/ MK. The thermal conductivity of air is 0.028 W/ MK, thus,
the glass thermal conductivity rate is 27 times the air, air and
water molecules in the active molecules, are the main factors that
influence the hollow glass energy conduction transfer and
convection transfer performance, thus improving the sealing
performance of hollow glass, is an important factor to improve the
hollow glass insulation performance.
|Normal size||5mm+Air+5mm,6mm+Air+6mm,8mm+Air+8mm, etc.|
|Color:||Clear glass or Tinted glass|
|1. Energy Saving: For the low heat conductibility of the sealed air
between the glass, the insulated glass can reduce heat transfer
from inside to outside. Therefore, it can save energy by 30%-50%.|
2. Smooth and flat surface and good vision
3. Excellent optical performance
4. Stable chemical properties
5. Flexible size specifications, minimizing cutting loss
6. Substrata for each level of glass processing.
7.No dewing in low temperatures
|Applications:||Widely used in all kinds of curtain wall of building ,indoor
partition or refrigerator|