Dynamic modelling of a low-concentration solar power plant: A control strategy to improve flexibility

被引：28
作者：
Antonelli, M. [1 ]
Baccioli, A. [1 ]
Francesconi, M. [1 ]
Desideri, U. [1 ]
机构：
[1] Univ Pisa, I-56125 Pisa, Italy
来源：
RENEWABLE ENERGY | 2016年 / 95卷
关键词：
Dynamic modelling; ORC solar power plant; AMESim; Control strategy; Volumetric expansion device; Compound Parabolic Collectors; COMPOUND PARABOLIC COLLECTORS; STEAM-GENERATION; SIMULATION; PERFORMANCE; REFLECTOR; EXPANDER; ENGINE;
D O I：
10.1016/j.renene.2016.04.053
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This paper deals with a dynamic analysis on a low concentration solar power plants coupled with Organic Rankine Cycles (ORC), which can be an alternative to PV systems because of their capability of providing a smoother electricity production due to their thermal inertia. At least within certain restraints, moreover they are able to exploit diffused solar radiation. The dynamic model of a plant with static Compound Parabolic Collectors and an ORC system, using a rotary volumetric expander, was developed using the simulation tool AMESim. All the main components of the plant are modelled: solar collectors field, heat transfer fluid circuit, heat exchangers and the ORC system. The plant response to the radiation of different days was analyzed to quantify the daily production and the trend of various plant parameters. Real ambient conditions were employed for the simulations by using data obtained by historical series. The results showed that the employment of a volumetric expansion device with variable rotating speed allows the plant to operate at different radiations and ambient temperatures without the need of any storage system or external heat sources. Results can be extended to other applications, such as low temperature waste heat recovery or geothermal systems. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：574 / 585
页数：12
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