Figure 10.
The schematic depicts temperature sensor placement on the South tower. A front elevation shows the South tower with a marked section line B to B across the lower shaft and an arrow indicating upstream to downstream direction. A corresponding B to B cross-section illustrates the tower plan with eight temperature sensor positions marked as red points and labelled U 1 to U 8. Sensors U 1 and U 2 are located on the upstream right side near the top, U 3 and U 4 on the downstream right side near the base, U 5 and U 6 on the downstream left side near the base, and U 7 and U 8 on the upstream left side near the top. A legend identifies the red points as temperature sensors.Thermal sensors on the NDB tower section