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To ensure the continuously stable operation of adiabatic isothermal-compressed air energy storage system, an adiabatic-isothermal compressed air energy storage method coupled with buffer tank is proposed. The dynamic thermodynamic model of the buffer tank coupled system is established, and the experimental platform is set up to verify the model. Besides, the variation mechanism of air temperature and pressure in the buffer tank is revealed, and the influence of design parameters of buffer tank on system performance is explored. The results show that, the adiabatic-isothermal compressed air energy storage system with buffer tank exhibits favorable isotherm, and the highest temperature difference at 30 K during the cycle. The adiabatic efficiency of the compressor unit of the coupled buffer tank system increased by 8 percentage points, and the exergy loss of the compressor unit decreased. Sensitivity analysis shows that the change of energy storage power has little effect on thermodynamic parameters of the air storage room, and the volume of the buffer tank decreases with the increase of energy storage power. Moreover, the change of energy storage scale has little influence on thermodynamic parameters of the air storage room, and the change trend of air temperature shows a periodic fluctuation. When the system energy storage scale increases, the volume of buffer tank will increase with the energy storage scale. The study provides a novel scheme for the continuous, stable and efficient operation of adiabatic-isothermal compressed air energy storage system.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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