光-煤互补复合发电系统综合性能分析
发布时间：2018-10-29 21:29
【摘要】：将扩容蒸发式槽式太阳能蒸汽发生系统与600 MW燃煤机组联合,构建了光-煤互补复合发电系统,建立了其变工况计算模型及技术经济评价模型,从太阳能侧、汽轮机侧及复合发电系统3方面进行了热力性能分析及技术经济性评估。结果表明,光-煤互补复合发电系统具有显著的节能减排效果,系统产生的太阳能蒸汽取代汽轮机第1段抽汽时效果最为明显,太阳能侧各指标随取代抽汽段数增大呈阶段性下降趋势,太阳能到电能的转换效率最高为23.5%;各集成模式下的单值发电成本相差不大,平均为0.19元/(kW·h);从净现值判断取代第1段抽汽是较好的选择,从净现值率、盈利能力判断取代第2段抽汽是较好的选择。
[Abstract]:By combining the expanded evaporative trough solar steam generating system with 600 MW coal-fired unit, the optical-coal complementary power generation system is constructed, and its off-condition calculation model and techno-economic evaluation model are established. Thermal performance analysis and technical and economic evaluation of steam turbine side and composite power generation system are carried out. The results show that the photo-coal complementary power generation system has remarkable energy saving and emission reduction effect, and the solar steam produced by the system is the most effective when it replaces the steam extraction of the first stage of steam turbine. The indexes of solar side decreased gradually with the increase of the number of alternative extraction stages, and the conversion efficiency from solar energy to electric energy was the highest of 23.5kyr; The cost of single value generation in each integrated mode is not different, with an average of 0.19 yuan / (kW h);. It is a better choice to substitute the first stage extraction from the net present value (NPV), and from the NPV rate and the profit ability to replace the 2nd stage extraction.
【作者单位】： 华北电力大学国家火力发电工程技术研究中心;
【基金】：国家高技术研究发展计划(863计划)(2013AA05040202) 中央高校基本科研业务费专项资金资助(2015XS76)
【分类号】：TM61
[Abstract]:By combining the expanded evaporative trough solar steam generating system with 600 MW coal-fired unit, the optical-coal complementary power generation system is constructed, and its off-condition calculation model and techno-economic evaluation model are established. Thermal performance analysis and technical and economic evaluation of steam turbine side and composite power generation system are carried out. The results show that the photo-coal complementary power generation system has remarkable energy saving and emission reduction effect, and the solar steam produced by the system is the most effective when it replaces the steam extraction of the first stage of steam turbine. The indexes of solar side decreased gradually with the increase of the number of alternative extraction stages, and the conversion efficiency from solar energy to electric energy was the highest of 23.5kyr; The cost of single value generation in each integrated mode is not different, with an average of 0.19 yuan / (kW h);. It is a better choice to substitute the first stage extraction from the net present value (NPV), and from the NPV rate and the profit ability to replace the 2nd stage extraction.
【作者单位】： 华北电力大学国家火力发电工程技术研究中心;
【基金】：国家高技术研究发展计划(863计划)(2013AA05040202) 中央高校基本科研业务费专项资金资助(2015XS76)
【分类号】：TM61
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