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Example of Actual Model for Heat Conduction Analysis

Actual Model Examples for Heat Conduction Analysis

Analysis model

The heat conduction analysis was performed with a used nuclear fuel transport container as an actual model. For this analysis, three verification examples were set, each with a model of different mesh roughness, as presented in Table 9.4.1. The shapes of the models are shown in Figs. 9.4.1–9.4.4.

Table 9.4.1: Examples of actual verification models for heat conduction analysis
Case ame Element type Verification model Number of nodes Freedom frequency
EX21A 361 Used unclear fuel transport container 88,938 79,920
EX21B 361 309,941 289,800
EX21C 361 1,205,765 1,159,200

Used nuclear fuel transport container

Fig. 9.4.1: Used nuclear fuel transport container

Dimensions of the used nuclear fuel transport container

Fig. 9.4.2: Dimensions of the used nuclear fuel transport container

Model’s schematic diagram

Fig. 9.4.3: Model’s schematic diagram

Model’s boundary conditions and mesh division diagram (EX21A)

Fig. 9.4.4: Model’s boundary conditions and mesh division diagram (EX21A)

Analysis Results

Examples of analysis results are shown in Figs. 9.4.5–9.4.7.

Temperature distribution diagram

Fig. 9.4.5: Temperature distribution diagram

Distributed model diagram

Fig. 9.4.6: Distributed model diagram

Speed improvement degree because of dispersion treatment

Fig. 9.4.7: Speed improvement degree because of dispersion treatment