Research Article
Analysis of Humid Air Turbine Cycle with Low- or Medium-Temperature Solar Energy
Table 1
Assumption conditions.
| | Item | Unit | Selected value |
| | Pressure ratio of compressor () | — | 340 | | Isentropic efficiency of compressor () | — | 0.85 | | Relative internal efficiency of turbine | — | 0.88 | | Combustor efficiency () | — | 0.99 | | Turbine inlet temperature (TIT) | | 10001200 | | Pressure loss coefficient of compressor | % | 1 | | Pressure loss coefficient of after-cooler and intercooler | % | 3 | | Pressure loss coefficient of saturator | % | 2 | | Pressure loss coefficient of recuperator and preheater | % | 3 | | Pressure loss coefficient of combustor | % | 3 | | Minimum temperature difference between outlet humid air and inlet hot water of the saturator | | 5 | | The temperature difference between the outlet water and air wet bulb of saturator | | 310 | | Make-up water temperature | | 15 | | Minimum heat transfer temperature difference between gas and water () | | 10 | | Minimum heat transfer temperature difference between gas and gas () | | 25 | | The inlet temperature of methane | | 25 | | Solar collector efficiency | — | 0.40.8 | | Direct solar radiation | kW/ | 900 | | The ratio of the collector circulating water mass flow rate with that of the internal water () | — | 0.3 |
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