Tommy Pascal Trimless - Tal.be

uk
Porifera is a unique system for cooling powerleds
and other electronic components through aluminium
foam . The unique properties of this aluminium
foam allow for a much higher cooling performance
compared to conventional cooling bodies . LED
light fixtures that make use of Porifera technology
have greater efficiency, made possible through the
following characteristics :
• Large cooling surface : the foam has an extremely high
surface aspect ratio thus creating a large surface within
a small volume. The larger the cooling surface, the more
heat can be dissipated.
• Low mass per volume : the aluminium foam is very
thin which brings the great advantage that the heat is
transferred immediately to the environment (air) and is
not first stored in the material itself like in conventional
systems. Such traditional systems have a radiator effect
i.e. the material fully heats up and only then interacts
with its environment. So the thicker the material, the
slower it cools down. The low mass per volume of
Porifera results in a low heat capacity. It reacts almost
instantly to temperature changes which results in very
short transient regimes, making it a very controllable
heat exchanger.
• Porous : the open cell structure allows for a free flow
of air through the mazes of the foam thus securing an
optimal heat exchange with the environment.
• Isotropic : the interconnected bubbles form a convoluted
path for any gases or liquids flowing through them.
Such a complex path continually brings the gases into
contact with the metal walls. This results in outstanding
convective heat transfers. An additional advantage of
this isotropic structure is that heat is distributed evenly
in a three-dimensional manner, so the performance is
independent of the direction of the convective flow.
Cooling LED fixtures with Porifera is much more efficient
than cooling with conventional cooling elements thus
providing increased life span as well as improved efficiency.
An LED’s life span and its efficiency are directly correlated
with its junction temperature. This correlation follows
3
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an exponential line i.e. more efficient cooling has an
enormous impact on these factors.
Specifications of Porifera :
• Open cell structure
• Organic structure
• Isotropic
• Aluminium
Porifera is a passive cooling system that brings all the
advantages of an active cooling system without the
downsides : greater efficiency without the need for
maintenance and completely noiseless.
Advantages :
• Longer LED life span
• Improved LED efficiency
• Lower power consumption
• Completely maintenance free
• Noiseless