Temperature distribution measurements in the pool of TRIGA mark II reactor

Temperature fields within the pool of the JSI TRIGA MARK II research reactor were measured to collect data for validation of the thermal hydraulics computational model of the reactor tank. In this context temperature of the coolant was measured simultaneously at sixty different positions within the pool during two transients. The obtained data not only revealed local peculiarities of the cooling water dynamics inside the pool but also allowed for better estimation of the coolant bulk velocity within the pool.