Parameter Screening and Sensitivity Analysis of an Earth-Air Tunnel Numerical Model

In this study, we performed the screening and sensitivity analysis of a validated EAT system model in TRNSYS using Morris’s screening method and Sobol’s variance-based sensitivity analysis method. The results of this study can help decision makers, by highlighting the most influential decision variables to focus on when dealing with EAT systems, which were found to be the length of the tubes; the flow rate; the tube’s internal diameter; the number of tubes; and the depth at which they were buried. Some other decision variables were found to be negligible such as: tube’s conductivity and interdistance.