YANG Yiping (1994-), female, Master. E-mail: yiping_yang0115@163.com
Solid oxide cell (SOC) plays a pivotal role in the reversible conversion of electricity-gas-electricity. The seawater electrolysis through reversible SOC is proven to be an effective approach to the intermittent power generation such as offshore wind power and photovoltaic power generation. In this paper, a flat-tube SOC stack was tested to analyze the reversible performance for SOC stack fueled with seawater/H2 under different operating conditions (i.e., water vapor content and current density). The results show that the degradation rate in electrolysis mode is minimal at a current density of 100 mA·cm-2, a humidified temperature of 90 ℃ (volume fraction of water vapor is 65%) and 750 ℃. The minimum voltage degradation rate in fuel cell mode is attained at a current density of 100 mA/cm2, a humidified temperature of 86 ℃ (volume fraction of water vapor is 56%) and 750 ℃. The efficiency of the stack in reversible mode is 95.2% at 100 mA·cm-2. It is indicated that this study could provide a reference for the application of reversible SOC stacks in seawater environment.
| 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 |