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.
出处
《可再生能源》
CAS
北大核心
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)
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
solar energy collection system
coal-fired unit
solar energy thermoelectric conversionrate
pay back time
