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Analysis of the performance of concentrated solar power facilities using different thermal fluids
Chemical Engineering Research and Design ( IF 3.9 ) Pub Date : 2021-02-08 , DOI: 10.1016/j.cherd.2021.01.030
Sebastián García , Mariano Martín

A systematic comparison of the performance and economics of concentrated solar power plants using various heat transfer fluids including molten salts and synthetic fluids (Dowtherm A, Syltherm, HELISOL, Malotherm and Therminol VP1) is carried out. First, a process systems approach is used to determine the yield of the thermodynamic cycle using different thermal fluids, their operating conditions and the water consumption. Next, an economic evaluation is performed. For reference Almería, to the South of Spain, is the location selected because of the high solar irradiance. The efficiency of the regenerative Rankine cycle increases with the maximum operating temperature. The average power production increases from 16 MW using Malotherm to 25 MW using the molten salts, while the water consumption decreases from 3.6 L/kWh to 2.1 L/kWh. A higher efficiency results in more competitive electricity prices that decrease from 0.21 €/kWh (Malotherm) to 0.12 €/kWh (molten salts) with the maximum operating temperature. Furthermore, the effect of the maximum temperature on power and water consumption are computed towards a pre-evaluation of novel fluids under development.



中文翻译:

使用不同热流体的集中式太阳能发电设施的性能分析

对使用各种传热流体(包括熔盐和合成流体)(Dowtherm A,Syltherm,HELISOL,Malotherm和Therminol VP1)的集中式太阳能发电厂的性能和经济性进行了系统比较。首先,使用一种过程系统方法来确定使用不同导热液,其运行条件和水消耗量的热力学循环的产量。接下来,进行经济评估。作为参考,在西班牙南部的阿尔梅里亚(Almería)是因为太阳辐射高而选择的位置。朗肯循环的效率随着最高工作温度而增加。平均发电量从使用Malotherm的16兆瓦增加到使用熔盐的25兆瓦,而耗水量从3.6升/千瓦时降低到2.1升/千瓦时。更高的效率导致更具竞争力的电价,在最高工作温度下,电价从0.21€/ kWh(马拉默特)降至0.12€/ kWh(熔融盐)。此外,计算出最高温度对功率和水消耗的影响,以对正在开发的新型流体进行预评估。

更新日期:2021-02-17
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