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Table 1 Stepwise calculation results

From: Thermodynamic pre-determination of power generation potential in geothermal low-temperature applications

  Winter Summer Unit Source
Brine temp 105 105 105 105 105 105 °C Known
Brine flow 300 300 300 300 300 300 m3/h Known
River water 10 10 10 25 25 25 °C Known
Water flow 150 300 450 150 300 450 m3/h Assumed
α 1 2.87 2.87 2.87 2.87 2.87 2.87 K/MW Equation 9
α 2 5.74 2.87 1.91 5.74 2.87 1.91 K/MW Equation 9
T rat 0.75 0.75 0.75 0.79 0.79 0.79 (-) Equation 6
α rat 2 1 0.67 2 1 0.67 (-) Equation 10
T CA 70.4 54.3 45.2 76.4 63.0 55.2 °C Equation 5
Q ˙ CA 12.1 17.7 20.9 10.0 14.6 17.4 MW Equation 4
ψ U max 0.65 0.65 0.65 0.65 0.65 0.65 (-) Figure 3
Ω spec, a 0.044 0.044 0.044 0.037 0.037 0.037 (-) Figure 3
W ˙ NPO 532 779 920 370 540 644 kW(el) Equation 12
Q ˙ 1 max 7.9 11.5 13.6 6.5 9.5 11.3 MW Equation 2