Recovering heat of flue gas from heat recovery steam generator system at Nhon Trach 1 and Nhon Trach 2 gas power plants by organic Rankine cycle to produce power
Abstract
Flue gas from gas turbines at Nhon Trach 1 and Nhon Trach 2 gas power plant are in the temperature range of 100 - 113oC after heat has been recovered at the heat recovery steam generator. These heat flows are not recovered by conventional methods since they are not effective. Meanwhile, the organic Rankine cycle (ORC) uses organic fluids with low boiling point, that is why it can recover heat from low-temperature flue gas streams. Results of the ORC investigation reveal that with R245fa as a fluid, the Nhon Trach 1’s capacity will increase by 2.0 MW, and the Nhon Trach 2’s capacity will see an increase of 3.6 MW with R113 as a fluid.
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