| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 644774 | Applied Thermal Engineering | 2016 | 5 Pages |
•CAES technology can improve electricity quality of wind power and solar power.•Adiabatic CAES technology has the advantage of zero natural gas consumption.•Ejector was integrated to adiabatic CAES system to recover pressure reducing loss.•Application of ejector achieved an efficiency increase of 3.41% for adiabatic CAES.•Energy conversion efficiency of the optimized adiabatic CAES reached 65.36%.
In this paper, the performances of two adiabatic compressed air energy storage systems were determined. In system 1#, compressed air was reduced directly from 6.40 MPa to 2.50 MPa. In system 2#, compressed air was first reduced to 5.00 MPa and was later adjusted to 2.50 MPa by an ejector under an ejecting coefficient of 0.45. The mass flow of turbine 1# increased by 45%, and its power output capacity increased from 3.80 MW to 5.51 MW. The energy conversion efficiency of system 2# increased to 65.36% from 61.95% for system 1#. The application of the ejector improved the efficiency by 3.41%.
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