High-Temperature Structural Analysis of a Small-Scale PHE Prototype - Analysis Considering Material Properties in Weld Zone -

2012 ◽  
Vol 36 (10) ◽  
pp. 1289-1295 ◽  
Author(s):  
Kee-Nam Song ◽  
Sung-Deok Hong ◽  
Hong-Yoon Park
Keyword(s):  
High Temperature ◽  
Structural Analysis ◽  
Material Properties ◽  
Weld Zone ◽  
Small Scale

High-Temperture Structural Analysis on a Small-Scale PHE Prototype Considering Mechanical Properties in the Heat-Affected Zone and in the Weld Zone

2012 ◽  
Author(s):  
Kee-Nam Song ◽  
Sung-Deok Hong ◽  
Hong-Yoon Park
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Structural Analysis ◽  
Performance Test ◽  
Weld Zone ◽  
Parent Material ◽  
Small Scale ◽  
Hastelloy X ◽  
Production Of Hydrogen ◽  
Gas Loop

PHE (Process Heat Exchanger) is a key component in transferring the high temperature heat generated from a VHTR (Very High Temperature Reactor) to the chemical reaction for massive production of hydrogen. A performance test on a small-scale PHE prototype made of Hastelloy-X is currently undergoing in a small-scale gas loop at the Korea Atomic Energy Research Institute. Previous researches on the high-temperature structural analysis of the small-scale PHE prototype had been performed using parent material properties over the whole region. In this study, high-temperature elastic structural analysis considering mechanical properties in the weld zone was performed and the analysis result was compared with previous researches.

Macroscopic High-Temperature Structural Analysis Model of Small-Scale PCHE Prototype (II)

2011 ◽  
Vol 35 (9) ◽  
pp. 1137-1143 ◽  
Author(s):  
Kee-Nam Song ◽  
Heong-Yeon Lee ◽  
Sung-Deok Hong ◽  
Hong-Yoon Park
Keyword(s):  
High Temperature ◽  
Structural Analysis ◽  
Small Scale ◽  
Analysis Model

Macroscopic High-Temperature Structural Analysis Model for a Small-Scale PCHE Prototype (I)

2011 ◽  
Vol 35 (11) ◽  
pp. 1499-1506 ◽  
Author(s):  
Kee-Nam Song ◽  
Heong-Yeon Lee ◽  
Chan-Soo Kim ◽  
Sung-Duk Hong ◽  
Hong-Yoon Park
Keyword(s):  
High Temperature ◽  
Structural Analysis ◽  
Small Scale ◽  
Analysis Model

High-temperature Structural Analysis of Small-scale Prototype of Process Heat Exchanger (III)

2011 ◽  
Vol 35 (2) ◽  
pp. 191-200 ◽  
Author(s):  
Kee-Nam Song ◽  
Heong-Yeon Lee ◽  
Chan-Soo Kim ◽  
Seong-Duk Hong ◽  
Hong-Yoon Park
Keyword(s):  
High Temperature ◽  
Heat Exchanger ◽  
Structural Analysis ◽  
Small Scale ◽  
Process Heat

scholarly journals High-Temperature Structural Analysis of a Small-Scale PHE Prototype under the Test Condition of a Small-Scale Gas Loop

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Kee-Nam Song ◽  
Sung-Deok Hong ◽  
Hong-Yoon Park
Keyword(s):  
Boundary Condition ◽  
Thermal Stress ◽  
High Temperature ◽  
Structural Analysis ◽  
Performance Test ◽  
Structural Integrity ◽  
Small Scale ◽  
Production Of Hydrogen ◽  
Gas Loop ◽  
A Performance

A process heat exchanger (PHE) is a key component for transferring the high-temperature heat generated from a very high-temperature reactor (VHTR) to a chemical reaction for the massive production of hydrogen. The Korea Atomic Energy Research Institute has designed and assembled a small-scale nitrogen gas loop for a performance test on VHTR components and has manufactured a small-scale PHE prototype made of Hastelloy-X alloy. A performance test on the PHE prototype is underway in the gas loop, where different kinds of pipelines connecting to the PHE prototype are tested for reducing the thermal stress under the expansion of the PHE prototype. In this study, to evaluate the high-temperature structural integrity of the PHE prototype under the test condition of the gas loop, a realistic and effective boundary condition imposing the stiffness of the pipelines connected to the PHE prototype was suggested. An equivalent spring stiffness to reduce the thermal stress under the expansion of the PHE prototype was computed from the bending deformation and expansion of the pipelines connected to the PHE. A structural analysis on the PHE prototype was also carried out by imposing the suggested boundary condition. As a result of the analysis, the structural integrity of the PHE prototype seems to be maintained under the test condition of the gas loop.

scholarly journals Thermostructural Analysis of Plate-Type Heat Exchanger Prototypes Considering Weld Properties

2012 ◽  
Vol 2012 ◽  
pp. 1-12
Author(s):  
Kee-nam Song ◽  
Sung-deok Hong
Keyword(s):  
Mechanical Properties ◽  
Heat Exchanger ◽  
Material Properties ◽  
Structural Integrity ◽  
Weld Zone ◽  
Parent Material ◽  
Small Scale ◽  
Hastelloy X ◽  
Weld Properties ◽  
Plate Type

The mechanical properties in a weld zone are different from those in the parent material owing to their different microstructures and residual weld stresses. Welded plate-type heat exchanger prototypes made of Hastelloy-X alloy were manufactured, and performance tests on the prototypes were performed in a small-scale nitrogen gas loop at the Korea Atomic Energy Research Institute. Owing to a lack of mechanical properties in the weld zone, previous research on the strength analyses of the prototypes was performed using the parent material properties. In this study, based on the mechanical properties of Hastelloy-X alloy obtained using an instrumented indentation technique, strength analyses considering the mechanical properties in the weld zone were performed, and the analysis results were compared with previous research. As a result of the comparison, a thermostructural analysis considering the weld material properties is needed to understand the structural behavior and evaluate the structural integrity of the prototype more reliably.

High-Temperature Structural Analysis on the Small-Scale PHE Prototype

2012 ◽  
Vol 525-526 ◽  
pp. 465-468
Author(s):  
Kee Nam Song
Keyword(s):  
High Temperature ◽  
Structural Analysis ◽  
Performance Test ◽  
Structural Integrity ◽  
Small Scale ◽  
Nitrogen Gas ◽  
Hastelloy X ◽  
Production Of Hydrogen ◽  
Very High Temperature Reactor ◽  
Gas Loop

PHE (Process Heat Exchanger) is a key component for transferring the high-temperature heat generated from a VHTR (Very High Temperature Reactor) to a chemical reaction for massive production of hydrogen. Korea Atomic Energy Research Institute has established a small-scale nitrogen gas loop for the performance test on VHTR components and has manufactured a small-scale PHE prototype made of Hastelloy-X of high-temperature alloy. A performance test on the PHE prototype is underway in the gas loop. In this study, in order to evaluate the high-temperature structural integrity of the PHE prototype under the test condition of the gas loop, structural analysis on the PHE prototype was carried out to gauge the stiffness of pipelines connected to the PHE prototype in the gas loop.

3D Structural Analysis of Selected High-Temperature Materials

2018 ◽  
Vol 55 (7) ◽  
pp. 424-446
Author(s):  
U. Jäntsch ◽  
M. Klimenkov ◽  
A. Möslang ◽  
F. Reinauer ◽  
J. Reiser ◽  
...  
Keyword(s):  
High Temperature ◽  
Structural Analysis ◽  
High Temperature Materials
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