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Category: Technical information associated with S&P Coil Products Trench Heaters Product Selection Heat Pipes Product Selection Part 2S & P Coil Products Ltd Heat Pipes for Displacement VentilationHeat Pipes - Product SelectionA heat pipe is an extremely efficient thermal conductor, relying
internally on the boiling and condensation of a working fluid to
transfer heat along its length. By utilising the latent energy of the
working fluid the internal temperature of the heat pipe remains constant
while it pumps heat between areas of high and low temperature to which
it is exposed externally. Displacement VentilationThe principle advantage of this method of space ventilation lies in
the reduced air volumes that are required to effectively condition the
space. Relatively low volumes of primary air are introduced at low level
at a temperature of 3 to 4°C below the design temperature of the space.
The stable layer of cool air rises when in contact with people and/or
equipment, picking up heat and moisture. This warm air collects at roof
level where it is extracted or cooled by a secondary cooling system
(chilled panels and beams). Heat Pipes for Primary Air TreatmentWrapping a heat pipe around the cooling coil in the ventilation AHU
acts to precool the air prior to it reaching the cooling coil and then
add this energy back into the air stream as reheat energy downstream of
the cooling coil. The heat pipe effectively reduces or eliminates the
load associated with overcooling while simultaneously reducing or
eliminating the reheat load. Design FeaturesThe heat pipes are arranged to ‘wrap-around’ the main cooling coil
and add, typically, no more than 300mm to the overall length of the AHU.
Heat pipes are manufactured from copper tubes expanded into continuous
aluminium fins in an identical manner to a conventional cooling coil, as
such they are available in a continuous range of sizes to match exactly
the dimensions of the main cooling coil. Optional material
specifications are available to again match the specification of the
other cooling and heating coils in the system. |
S & P Coil Products Ltd
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