The Actual Safety Test of the HTR
Many calculations were performed on the behavior of the HTR heat source in case of loss of flow (the helium flow stops due to the failure of the gas turbine or ventilator) or loss of coolant (the helium leaks away through a leak). However, actual tests are much more convincing to the interested persons or the potential users.
Figure 6) Demonstration of the inherently safe shutdown of the AVR reactor in 1970.
The upper part shows the course of the reactor power after stopping the blowers with the control rods remaining withdrawn. The lower part showns the developments of temperatures at several locations of measurements.
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