Open AccessEXPERIMENTAL TECHNIQUES
Author(s) -
Anil Kumar Saxena,
S. S. Limaye,
P K Bhaumik
Publication year - 2021
Publication title -
international journal of engineering applied science and technology
Language(s) - English
Resource type - Journals
ISSN - 2455-2143
DOI - 10.33564/ijeast.2021.v06i02.040
Subject(s) - nuclear engineering , instrumentation (computer programming) , thermocouple , mechanics , core (optical fiber) , mechanical engineering , simulation , materials science , computer science , engineering , physics , composite material , operating system
-There may be several aspects in anyexperiment conducted to achieve a well definedgoal. It is considered more useful to cite numberof experimental techniques employed in a singlelarge scale experiment. For the rewetting ofvertical cylindrical surface under bottom floodingconditions, it is reasonable to assume uniformityof temperature in the peripheral coordinate. CodeRAMM (Rewetting Analysis using Moving Mesh)has been developed by the author of this paper [1]to calculate rewetting velocity. Experiments werealso conducted for determination of rewettingvelocities [2], the rewetting velocity in mm/sis100.0 by [3]; 33.3 by [4] ;51.0 by [5]. This paperis aimed to cover experimental techniquesemployed in the determination of rewettingvelocity (RV) in Nuclear Reactor Channel underthe scenario of Loss Of Coolant Accident (LOCA).For determining RV, many experimentalmethodology and techniques were employed.Experimental simulation of nuclear fuel pin cladnamed as fuel pin simulator, was carried out bytaking hot vertical annular channel whererewetting of outer surface was studied.Experimental rewetting studies requires multidisciplinary approach namely (i) selection ofmaterial for the fuel pin simulator. (ii) Installationof thermocouple wires at many locations into wallof a long and narrow tube (iii) Electricalresistance Joules heating of S. S. tube of 3.03mlong, 0.015m outer and 0.012m inner diameters(iv) selection of power source for heating (v)Instrumentation required to capture parametersand (vi) Programming and connecting the DataAcquisition System (DAS) for recording thetemperature transients.