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Original Articles

Comparison of the energetic performance of a binary cycle and a flash evaporation binary cycle, using low-enthalpy geothermal energy

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Pages 90-98 | Received 21 Apr 2015, Accepted 07 Sep 2016, Published online: 28 Sep 2016

Figures & data

Figure 1. Conventional binary cycle (CBC).

Figure 1. Conventional binary cycle (CBC).

Figure 2. Heat transfer–temperature diagram for shell and tube heat exchanger.

Figure 2. Heat transfer–temperature diagram for shell and tube heat exchanger.

Table 1. Input data for CBC.

Table 2. Analysis of a CBC.

Figure 3. Flash evaporation binary cycle (FEBC).

Figure 3. Flash evaporation binary cycle (FEBC).

Figure 4. Temperature vs. entropy diagram for FEBC.

Figure 4. Temperature vs. entropy diagram for FEBC.

Table 3. Input data for the energetic comparison.

Table 4. Theoretical comparison of a CBC and a FEBC with a power output of 1200 kWe.

Figure 5. Comparison of CBC and FEBC with different inlet temperature of geothermal fluid.

Figure 5. Comparison of CBC and FEBC with different inlet temperature of geothermal fluid.

Figure 6. Comparison of CBC and FEBC (net power vs required mass flow rate of working fluid).

Figure 6. Comparison of CBC and FEBC (net power vs required mass flow rate of working fluid).

Figure 7. Comparison of CBC and FEBC (net power vs required mass flow rate of geothermal fluid).

Figure 7. Comparison of CBC and FEBC (net power vs required mass flow rate of geothermal fluid).

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