太阳能集热系统与600MW燃煤机组集成及性能分析  

Integration between solar energy collection system and 600 MW coal-fired unit and its performance analysis

作　　者：于鑫玮[1] 陈海平[2] 

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003 [2]华北电力大学国家火力发电工程技术研究中心,北京102206

出　　处：《可再生能源》2013年第8期1-5,共5页Renewable Energy Resources

基　　金：国家高技术研究发展计划(2013AA05040202)

摘　　要：为了避免工质两相流带来传热效果的恶化和流体分层现象,提出了抛物面槽式太阳能集热器与600 MW燃煤机组热力系统集成的优化设计。以呼和浩特地区为例,针对600 MW机组最优集成方案的研究结果表明,取代2段抽汽方案为最优,其太阳能热电转换率达35.85%,全年可节约标煤12 494.09 t,减排二氧化碳29 610.99 t,投资回收期为12.5 a。In order to overcome the deterioration of heat transfer caused by two-phase flow and avoid flow separation,a design of integration between parabolic trough solar energy collector and 600 MW coal-fired power plant thermodynamic system was put forward and optimized.An optimal integration scheme for 600 MW unit is achieved and discussed in Hohhot area.Results show that the scheme, in which the second stage extraction steam is replaced by solar energy, can save 12494.09 t standard coal equivalent with 29610.99 t carbon emission reduction a year, thermoelectric conversion rate up to 35.85%, and investment payback period only 12.5 years.

关 键 词：太阳能集热系统 燃煤机组 太阳能热电转换率 投资回收期 

分 类 号：TM615[电气工程—电力系统及自动化]