“…To assess the performance of ATES systems, a variety of numerical models based on finite element methods (Kim et al, 2010; Rouve et al, 1988; Tenma et al, 2003), finite difference methods (Lee, 2008; Molson et al, 1992), or finite volume methods (Yapparova et al, 2014) have been developed to study the thermal behavior in the ATES system. The analytical model by contrast is also widely used to analyze the thermal behavior in the long term ATES system because of the advantages of simplicity, easy implementation, and time‐saving in computation as compared with the numerical models.…”