A solar micro gas turbine system combined with steam injection and ORC bottoming cycle
A solar micro gas turbine system combined with steam injection and ORC bottoming cycle
复制标题
结合蒸汽喷射和ORC底循环的太阳能微型燃气轮机系统
DOI：
10.1016/j.enconman.2021.114032
复制
发表时间：
2021-09
影响因子：
10.4
通讯作者：
Kefa Cen
中科院分区：
文献类型：
--
作者：
Gang Xiao;Jinli Chen;Mingjiang Ni;Kefa Cen
微型燃气涡轮机（MGT）是太阳能发电系统中的重要组成部分，它可以提高系统的效率，并提供独特的灵活性，以满足快速变化的需求。本文提出了一种太阳能微型燃气涡轮机（MGT）与蒸汽喷射和有机朗肯循环（ORC）相结合，以提高效率和灵活性。产生注入到MGT中的蒸汽的蒸汽接收器被放置在空气接收器孔周围，以增加接收器拦截效率。热力学模型包括一个定日镜场，太阳能接收器，MGT和ORC的开发，以调查所提出的系统的性能，其中每个子模型验证与实验/参考数据的后续优化的设计和操作参数。对于一台100 kW的太阳能恒日场驱动的MGT，模拟结果表明，空气接收器的最佳孔径为1.1 m。在春分、夏至、秋分和冬至这四个典型的日子里，定日镜场的平均光学效率分别为0.672、0.754、0.672和0.597。MGT在四天内的燃油消耗量分别降低了14.8%，24.6%，22.4%和3.7%。秋分12：30太阳能利用率可达86.0%，系统功率效率为19.9%。通过增加注汽和ORC，可分别增加功率输出8.29 kW和30.37 kW，使总功率输出增加37.7%，提高了系统效率和灵活性。所提出的系统可以使分布式能源系统受益，特别是对于偏远地区或岛屿作为一个灵活的选择。
Micro gas turbine (MGT) is an important section in solar-driven power systems, as it can improve system efficiency and provide unique flexibility to meet quickly changing demands. Herein, a solar micro gas turbine (MGT) combined with steam injection and organic Rankine cycle (ORC) is proposed to improve efficiency and flexibility. A steam receiver that produces the steam injected into the MGT is placed around the air receiver aperture to increase the receiver intercept efficiency. A thermodynamic model including a heliostat field, a solar receiver, an MGT and an ORC is developed to investigate the performance of the proposed system, where each sub-model is validated with experimental/referenced data for the subsequence optimization of design and operating parameters. For a 100 kW MGT driven by a solar heliostat field, the simulation results show that the optimized aperture diameter of the air receiver is 1.1 m. On four typical days of a year, i.e. the spring equinox, the summer solstice, the autumn equinox, and the winter solstice, the average optical efficiency of the heliostat field is 0.672, 0.754, 0.672 and 0.597, respectively. Fuel consumption of the MGT during the four days is reduced by 14.8%, 24.6%, 22.4% and 3.7%, respectively. The solar energy share can reach up to 86.0% with a system power efficiency of 19.9% at 12:30 of the autumn equinox. By adding steam injection and ORC, the power output can be increased by 8.29 kW and 30.37 kW, respectively, bringing an increase of the total power output by 37.7% and improving the system efficiency and flexibility. The proposed system can benefit the distributed energy systems especially for remote areas or islands as a flexible option.
登录
查看更多内容
影响因子：
2
作者：
José Zapata;K. Lovegrove;John Pye
通讯作者：
José Zapata;K. Lovegrove;John Pye
影响因子：
6.7
作者：
M. Livshits;A. Kribus
通讯作者：
M. Livshits;A. Kribus
影响因子：
10.4
作者：
Mohammad Javidmehr;Fatemeh Joda;A. Mohammadi
通讯作者：
Mohammad Javidmehr;Fatemeh Joda;A. Mohammadi
影响因子：
8.7
作者：
Alvaro Sanchez-Gonzalez;D. Santana
通讯作者：
Alvaro Sanchez-Gonzalez;D. Santana
DOI：
10.1115/gt2015-43571
发表时间：
2015-06
期刊：
--
影响因子：
--
作者：
S. Camporeale;Patrizia Domenica Ciliberti;B. Fortunato;M. Torresi;A. Pantaleo
通讯作者：
S. Camporeale;Patrizia Domenica Ciliberti;B. Fortunato;M. Torresi;A. Pantaleo