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Table 11 Key results when varying annulus with original radii dimensions to 3.s.f

From: Modelling an unconventional closed-loop deep borehole heat exchanger (DBHE): sensitivity analysis on the Newberry volcanic setting

Key results Original Case1 Case2 Case3
\({T}_{\text{i}}\;(^{\circ } {\text{C}})\) 11.1 10.9 11.2 11.8
\({T}_{\text{o}}\; (^{\circ } {\text{C}})\) 50.0 48.5 51.8 49.6
\({\Delta} {T}\; (^{\circ } {\text{C}})\) 38.9 37.6 40.6 37.8
\({P}_{\text{i}}\) (MPa) 4.97 5.90 4.87 1.35
\({P}_{\text{o}}\) (MPa) 0.302 0.302 0.302 0.300
\({u}_{{\text{F}}}\) (m/s) 2.48 2.48 2.48 1.41
\({q}_{\text{Th}}\)(MW) 1.46 1.43 1.50 1.45
\({\sigma }_{{A}}\; ({\text{m}}^{2})\) 0.0137 0.00621 0.0291 0.0112
\({\sigma }_{\text{T}}\; ({\text{m}}^{2})\) 0.00201 0.00201 0.00201 0.00354
\({\sigma }_{\text{A}}/{\sigma}_{\text{T}}\) 6.83 3.09 14.5 3.16