Fig. 6From: Modelling an unconventional closed-loop deep borehole heat exchanger (DBHE): sensitivity analysis on the Newberry volcanic settingThermal conductivity analysis in inner casing (Casg1) over 30 years. Left—temperature vs. elevation for various \(\lambda\; (\text{W}/\text{mK})\). Right—pressure vs. elevation for various \(\lambda\; (\text{W}/\text{mK})\). Solid lines represent annulus and dashed lines represent tubing data, respectively. Legend applies to both graphs. All cases were compared to the base-case graph (in blue)Back to article page