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Thermasail Radiant Conditioning Sails Heating Cooling information |
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Category: S&P Coil Products Thermasail Radiant Conditioning Sails Heating Cooling OperationsS & P Coil Products THERMASAIL Radiant Conditioning SailsAt the heart of the SPC’s THERMASAIL system is a unique, patented
composite aluminium sheet panel. Structurally rigid, the panel is used
elsewhere in the automotive and marine construction industries, because
of its high strength and low weight characteristics. It is a building
material in its own right. Basic OperationChilled or hot water is introduced into the panel via copper pipes which are mechanically fixed into aluminium extrusions. The extrusions are then bonded and riveted to the upper surface of the panel ensuring excellent and reliable heat transfer. CoolingWhen chilled water is passed through the coil, the large chilled lower surface cools the air against it. It also absorbs radiant gains from the room. The air above the panel is also cooled, and this cooled air convects around the edges of the sail. The unique strength of the panel eliminates the need for any structural sidewall allowing unrestricted cooled air movement and high cooling performance.
HeatingWhen warm water is passed through the coil, the lower surface of the
sail operates as an efficient radiant heater. The air above the panel is
also warmed, and convects into the room space. With a large heated area,
low water temperatures can be used which maximises boiler
Cooling with THERMASAILSThe maximum output of SPC’s THERMASAILS is governed by dew point. The
water temperature must be carefully controlled to ensure that
condensation does not occur on the THERMASAIL. This means that in the UK
the difference between the water flow temperature and the room
temperature is likely to be about 8 or 9 degrees.
The resultant THERMASAILS should be evenly distributed across the ceiling to provide uniformly comfortable conditions. Services such as lighting, fire alarms, sprinklers etc., can be fitted to, or through the THERMASAILS, so there is no need to compromise on systems layout. Heating with THERMASAILSHeat loads are calculated in the normal way, however with radiant
heating using THERMASAILS comfort temperature is achieved with an air
temperature 2 degrees lower than conventional heating, which
significantly reduces the heat load. Divide the heat load by the output
of the THERMASAIL given in the graph below to give the area of
THERMASAIL required for heating.
Note: - a THERMASAIL used for heating provides more heat output than
an equivalent THERMATILE radiant panel as there is no upper insulation,
which means there is additional convected heat output.
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S & P Coil Products Ltd
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