文章对海上风电各国总体发展现状及未来发展趋势进行分析,表明各国都在加强对海上风电开发利用,但随着海上风电高速发展,有限的近海风电资源开发趋于饱和,深远海域风电成为海上风电未来发展的方向。然而水深离岸远,深远海风能开发困难,...文章对海上风电各国总体发展现状及未来发展趋势进行分析,表明各国都在加强对海上风电开发利用,但随着海上风电高速发展,有限的近海风电资源开发趋于饱和,深远海域风电成为海上风电未来发展的方向。然而水深离岸远,深远海风能开发困难,难于实现商业化。文章介绍了一种将新能源电力转换为其他能源载体的Power to X模式。氢作为1种可再生能源载体,可基于Power to X模式,通过将新能源电力电解水制氢的方式,有效降低深远海风电的成本。展开更多
The one time presence of short-lived radionuclides (SLRs) in Calcium-Aluminum Rich inclusions (CAIs) in primitive meteorites has been detected. The solar wind implantation model (SWIM) is one possible model that attem...The one time presence of short-lived radionuclides (SLRs) in Calcium-Aluminum Rich inclusions (CAIs) in primitive meteorites has been detected. The solar wind implantation model (SWIM) is one possible model that attempts to explain the catalogue of SLRs found in primitive meteorites. In the SWIM, solar energetic particle (SEP) nuclear interactions with gas in the proto-solar atmosphere of young stellar objects (YSOs) give rise to daughter nuclei, including SLRs. These daughter nuclei then may become entrained in the solar wind via magnetic field lines. Subsequently, the nuclei, including SLRs, may be implanted into CAI precursors that have fallen from the main accretion flow which had been destined for the proto-star. This mode of implanting SLRs in the solar system is viable, and is exemplified by the impregnation of the lunar surface with solar wind particles, including SLRs. X-ray luminosities have been measured to be 100,000 times more energetic in YSOs, including T-Tauri stars, than present-day solar luminosities. The SWIM scales the production rate of SLRs to nascent SEP activity in T-Tauri stars. Here, we model the implantation of 7Be into CAIs in the SWIM, utilizing the enhanced SEP fluxes and the rate of refractory mass inflowing at the X-region, 0.06 AU from the proto-Sun. Taking into account the radioactive decay of 7Be and spectral flare variations, the 7Be/9Be initial isotopic ratio is found to range from 1 × 10−5 to 5 × 10−5.展开更多
文摘文章对海上风电各国总体发展现状及未来发展趋势进行分析,表明各国都在加强对海上风电开发利用,但随着海上风电高速发展,有限的近海风电资源开发趋于饱和,深远海域风电成为海上风电未来发展的方向。然而水深离岸远,深远海风能开发困难,难于实现商业化。文章介绍了一种将新能源电力转换为其他能源载体的Power to X模式。氢作为1种可再生能源载体,可基于Power to X模式,通过将新能源电力电解水制氢的方式,有效降低深远海风电的成本。
文摘The one time presence of short-lived radionuclides (SLRs) in Calcium-Aluminum Rich inclusions (CAIs) in primitive meteorites has been detected. The solar wind implantation model (SWIM) is one possible model that attempts to explain the catalogue of SLRs found in primitive meteorites. In the SWIM, solar energetic particle (SEP) nuclear interactions with gas in the proto-solar atmosphere of young stellar objects (YSOs) give rise to daughter nuclei, including SLRs. These daughter nuclei then may become entrained in the solar wind via magnetic field lines. Subsequently, the nuclei, including SLRs, may be implanted into CAI precursors that have fallen from the main accretion flow which had been destined for the proto-star. This mode of implanting SLRs in the solar system is viable, and is exemplified by the impregnation of the lunar surface with solar wind particles, including SLRs. X-ray luminosities have been measured to be 100,000 times more energetic in YSOs, including T-Tauri stars, than present-day solar luminosities. The SWIM scales the production rate of SLRs to nascent SEP activity in T-Tauri stars. Here, we model the implantation of 7Be into CAIs in the SWIM, utilizing the enhanced SEP fluxes and the rate of refractory mass inflowing at the X-region, 0.06 AU from the proto-Sun. Taking into account the radioactive decay of 7Be and spectral flare variations, the 7Be/9Be initial isotopic ratio is found to range from 1 × 10−5 to 5 × 10−5.
