Characterisation of Segregation by Dynamic Neutron Radiography
M. Balaskóa and E. Svább
a KFKI Atomic Energy Research Institute, P.O.B. 49, 1525 Budapest, Hungary
b MTA Research Institute for Solid State Physics and Optics, P.O.B. 49, 1525 Budapest, Hungary
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Dynamic neutron radiography is an advanced non-destructive technique to visualise and analyse different types of segregation phenomena in technically important objects. Here we describe applications on calorimetric devices studied during operation. Segregation behaviour in the water separator and formation of clogging in the tube system of absorption-type refrigerator is studied. Separation of lubrication oil on the surface of the cooling agent in the evaporator puffer of compression-type cooling units, and inhomogeneous distribution of the working fluid in thermostats is discussed.
DOI: 10.12693/APhysPolA.96.7
PACS numbers: 61.12.Yp, 81.70.-q