摘要
为了分析熔盐塔式电站在不同设计参数下的性能,介绍了电站主要系统的能量损失及集热场效率、电站效率和容量因子的计算,使用SAM软件建立了100 MW熔盐塔式电站的最优效率性能模型,利用青海德令哈地区的气象数据,计算了电站在不同太阳倍数和储热时长下的效率及容量因子。结果表明:当太阳倍数由1增加至3时,集热场年平均最高效率由42.34%降至38.75%;对于电站整体效率和容量因子,随着储热时长的增加并不是线性地增加;当储热时长增加到一定时间后,电站效率和容量因子的增加趋于平缓,“拐点”在辐照度低的地区来的更晚,说明辐照度低的地区需要的储热时长更多。
To analyze the performance of molten salt tower solar thermal power plant in different design parameters,the energy loss,heliostats field efficiency,power plant efficiency and capacity factor of the main systems of the molten salt tower solar thermal power plant are introduced.An optimal efficiency performance model in SAM software is established for a 100 MW molten salt tower power plant.Using the meteorological data of Delingha in Qinghai China,the efficiency and capacity factor of the power plant under different solar multiples and heat storage time are calculated.The results show that when the solar multiple increasing from 1 to 3,the annual average maximum efficiency of the collector field is reduced from 42.34%to 38.75%.The overall efficiency and capacity factor of the power plant are not linear with heat storage time rising.With the heat storage time increasing to a certain time,the increases of efficiency and capacity factor in power plant tends to be flat,and the inflection point comes later in areas with low irradiance,illustrating that low irradiance areas requires more heat storage time.
作者
韩磊
雷少博
朱琳
HAN Lei;LEI Shaobo;ZHU Lin(Harbin Electric International Co.,Ltd,Harbin,Heilongjiang 150028,China;Xi'an Thermal Power Research Institute Co.,Ltd.,Xi'an,Shaanxi 710032,China;State Grid Shanxi Xinzhou Power Supply Company,Xinzhou,Shanxi 034000,China)
出处
《山西电力》
2019年第5期38-44,共7页
Shanxi Electric Power
关键词
太阳能
熔盐塔式电站
集热场效率
电站效率
太阳倍数
储热时长
容量因子
solar energy
molten salt tower power plant
heat collecting field efficiency
power plant efficiency
solar multiple
heat storage time
capacity factor
