Performance of Parabolic Trough Collector with Different Heat Transfer Fluids and Control Operation

Surender Kannaiyan and Neeraj Dhanraj Bokde ()
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Surender Kannaiyan: Department of Electronics and Communication, Visvesvaraya National Institute of Technology, Nagpur 440010, India
Neeraj Dhanraj Bokde: Center for Quantitative Genetics and Genomics, Aarhus University, 8000 Aarhus, Denmark

Energies, 2022, vol. 15, issue 20, 1-23

Abstract: Electricity generation from solar energy has become very desirable because it is abundantly available and eco-friendly. Mathematical modeling of various components of a Solar Thermal Power plant (STP) is warranted to predict the optimal and efficient operation of the plant. The efficiency and reliability of STPs are maximized based on different operating strategies. Opting for proper Heat Transfer Fluid (HTF), which is proposed in this paper, helps in reducing operating complexity and lowering procurement cost. The Parabolic Trough Collector (PTC) is the heart of STP, where proper focusing of PTC towards solar radiation is the primary task to maximize the outlet temperature of HTF. This maximum temperature plays a major factor due to diurnal solar radiation variation, and its disturbance nature, with the frequent startup and shutdown of STP, is avoided. In this paper, the PTC component is modeled from the first principle, and, with different HTF, the performance of PTC with constant and quadratic solar disturbances is analyzed along with classical control system designs. Through this, the operator will be able to choose proper HTF and resize the plant components depending on plant location and weather conditions. Furthermore, the thermal energy is collected for therminol oil, molten salt, and water; and its performance with different inputs of solar radiation is analyzed along with closed-loop controllers. Thermal energy extracted by therminol oil, molten salt, and water with constant solar radiation results in 81.7 % , 73.7 % and 18.7 % , respectively.

Keywords: solar thermal power plant; parabolic trough collector; heat transfer fluid; classical control system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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