Essays about: "Swing check valve"

Found 5 essays containing the words Swing check valve.

1. 1. Swing check valvecharacterization: 3D CFDvalidation of one dimensionalmodels used in RELAP5

   University essay from KTH/Mekanik

   Author : Giacomo Vavassori; [2017]
   Keywords : ;

   Abstract : In a previous thesis work a swing check valve was studied with CFD analysisin order to nd correlations that could provide a good input for a onedimensionalmodel of the same. In this document, starting from the previousthesis results and using the model by Li and Liou as the reference work, a checkvalve is investigated and the hydraulic torque coecients identied. READ MORE

3. 2. 3D-modeling of swing check valve with connection to dynamic behavior used in system studies

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Christoffer Björk; [2015]
   Keywords : Swing check valve; fluid mechanics; pressure surge; waterhammer; Fluent; Technology and Engineering;

   Abstract : This Master’s Thesis is the result of the collaboration between The Technical Faculty of Lund University and TÜV NORD Sweden AB. Focus has been directed towards the nuclear industry where this thesis is one of several other Master’s Theses regarding the dynamic modeling of a swing check valve. READ MORE

4. 3. Investigation of a swing check valve using CFD

   University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära; Linköpings universitet/Tekniska högskolan

   Author : Emil Boqvist; [2014]
   Keywords : swing check valve; check valve; CFD; FSI; Emil Boqvist; backventil; flödesberäkningar; Emil; Boqvist;

   Abstract : This master’s thesis is made to increase the understanding of the dynamic characteristics of a typical large swing check valve used in a system that transports pressurized water to a reactor tank.3D FSI-simulations are performed for a number of transients in order to study the dynamic characteristics their dependence of the deceleration rate. READ MORE

5. 4. Benchmark of RELAP5 Check Valve Models against Experimental Data

   University essay from Mekanisk värmeteori och strömningslära; Tekniska högskolan

   Author : Jens Gardell; [2013]
   Keywords : RELAP5; check valve slam; steam bubble collapse; experimental data; Benchmark; inertia check valve; pressure wave; closing time; reactor safety;

   Abstract : The use of check valves in the nuclear industry is of great importance from a safety precaution point ofview (McElhaney, 1995). Choosing check valves for these high-pressurized systems comes with agreat challenge. The valves causes what is called check valve slams when closing, leading to a hugepressure wave traveling through the system. READ MORE

6. 5. Comparison between RELAP5 and TRACE for modelling different loads on pipe systems during transient conditions

   University essay from Institutionen för fysik och astronomi

   Author : Karl Bjorklund; [2010]
   Keywords : RELAP5; TRACE; transient conditions; check valve; pipe loads;

   Abstract : This is a M. Eng. degree project at Uppsala University carried out at the Forsmark nuclear power plant in Sweden. The purpose of it is to compare the two codes RELAP5 and TRACE during transient changes in mass flow against experiment. READ MORE