Book - School of Science and Technology

180 Heat emitting equipmentRadiant front plateCarrier and diffuser plateWaterway tubesFigure 7.2 Metal radiant panels (low and medium temperature)Radiant stripsAgain, for workshops, strip heaters of the type illustrated in Figure 7.3 may be appliedwith success when supplied with high or medium temperature hot water or steam. Onetype consists of a 32 mm pipe, to which a profiled aluminium plate is clipped, for runningin a continuous line overhead. The rear upward face may be insulated as shown or,unusually, left bare: provision may be made for lighting tubes to be contained below thealuminium plate.Outputs to air at 15 C range from 0.5 kW/m run with a single pipe at 100 C to 3 kW/mrun with four pipes at 150 C. The percentage radiant component of the total output isabout the same, or slightly more than that of a panel operating under similar conditions.The manufacturers recommend that the water velocity should be maintained at a reason-SupportsInsulation300mm32mm pipeFigure 7.3 Radiant strip heating3m standard length