Sunstrip - Solar Absorber fins
Creating a New Wave of Solar Performance
After a decade of research, the Sunstrip solar fin has emerged
as one of the most innovative developments in solar technology. It's elegant
design and unparalleled performance mow make possible a new generation
of attractive and affordable solar products.
The advanced technology of
The fin's metallurgically-bonded aluminum completely surrounds
a copper tube waterway. The corrosion resistance of copper combined with
the light weight and high thermal conductivity of aluminum produces the
optimal finned tube. The metalurgical bond provides superior thermal contact
resulting in superior heat absorption and conductivity, and long-term
The Sunstrip fin is versatile and can be assembled into
a variety of convenient solar absorber formats that realize only minimal
pressure drops. Sunstrip has low thermal inertia due to its light weight.
As the intensity of the solar flux varies, the fin will react quickly
to maximize energy collection. Sunstrip technology can be adapted easily
and economically for use in your existing production line.
The aluminum/copper fin is corrosion resistant
The dependable Sunstrip fin design has been use-tested
and improved over a decade in varied applications and climatic conditions
Sunstrip is available (1) in uninflated coils (for
high-volume/low-cost production), (2) as an inflated pre-cut fin,
(3) as completely assembled absorbers.
The rhombic cross section of the Sunstrip tube is
easily connected to a manifold header
Standard tube sizes are 8 and 12 mm nominal diameters
8 mm Sunstrip is available in serpentine patterns.
Termed "Micro-Flo", these absorbers provide one continuous
finned tube at low cost
Fins are available in lengths up to 6 m. Standard
width is 146 mm.
Fin thickness is 0.5 mm, which yields a fin efficiency
of 93 to 95 %
Fin is available with a selective black painted finish,
an Anodic-Cobalt (highly selective) , or as bare aluminum.
Sunstrip fins and absorbers are high in efficiency, light in weight, technologically
advanced, and offer attractive economics - all
good reasons for choosing Sunstrip solar fins and absorbers
Sunstrip is produced by metallurgically bonding two strips
of aluminum to a copper tube which acts as a waterway. A specialized rolling
mill is used to manufacture Sunstrip.
Sunstrip is light and strong. It has an average weight of
2 kg/sq m and a high burst pressure of 6.0 MPa (870 psi). Every piece
of Sunstrip is automatically tested to 1.72 MPa (250 psi) during the inflation
process. Sunstrip has an infinite fatigue life under combined mechanical
and thermal loading.
Sunstrip Rolling Mill
Hydraulic diameters (for calculation of pressure drops)
are 3.93 mm for the 8 mm, and 6.48 mm for the 12 mm. Fin thickness is
0.5 mm at the flange and 1.0 mm at the tube (uninflated). Fin surface
is normally dimpled to increase rigidity and enhance appearance. Sunstrip
is easily joined to conventional copper tubing by 95/5 (tin/antimony)
solder welding. Copper tubing is 99.9% pure and the aluminum fin is alloy
1350. Emissivity of selectively anodized (Anodic-Cobalt) fin is 0.12 and
absorptivity is 0.94.
Finished coils of Sunstrip fin are available in lengths
up to 600 m (1,969 ft). Sunstrip fin is also available in inflated form,
cut to your specified length. The pictures show uninflated Sunstrip (top),
inflated Sunstrip (middle), and aluminum/copper entering the bonding process
A company committed to advancing solar technology
Since 1980, Thermo Dynamics Ltd. has been dedicated to researching,
developing, manufacturing, and marketing the finest solar energy products
available.Company innovations contribute to a better life for solar users
in Canada, the United States and World-Wide.
To ensure strong client support and service, Thermo Dynamics
maintains an international network of knowledgeable dealers and representatives.
Sunstrip solar fins in various specifications are manufactured in Canada
and exported for use by other solar manufacturers and contractors throughout
Thermo Dynamics Solar Products.
Giving you a season for the sun all year round.
Technical information on Sunstrip
Questions and Answers
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