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OECD NEA meeting focuses on irradiation experiments
Members of the OECD Nuclear Energy Agency’s Second Framework for Irradiation Experiments (FIDES-II) joint undertaking gathered from September 29 to October 3 in Ketchum, Idaho, for the technical advisory group and governing board meetings hosted by Idaho National Laboratory. The FIDES-II Framework aims to ensure and foster competences in experimental nuclear fuel and structural materials in-reactor experiments through a diverse set of Joint Experimental Programs (JEEPs).
Naozo Hattori, Kenji Hayashi
Nuclear Technology | Volume 72 | Number 1 | January 1986 | Pages 105-116
Technical Paper | Heat Transfer and Fluid Flow | doi.org/10.13182/NT86-A33759
Articles are hosted by Taylor and Francis Online.
An experimental investigation of the friction factor for fully developed turbulent sodium flow in small smooth tubes is presented. The pressure loss for single and double tubes is measured precisely by means of NaK pressure transducers, under several sets of conditions of fluid flow, temperature, and metallic impurity. From the results obtained, it is found that the friction factor-Reynolds number relationships for the small tubes vary appreciably with the operating time of a sodium loop (1260 to 4100 h). The primary cause of the change in these relations is the deposition of metallic particulates on the tube surfaces.
