Article
Multidisciplinary Sciences
Mohamed Mahran Kasem
Summary: This study presents a novel multi-objective optimization model for the design optimization of PTCs, with thermal and exergetic efficiencies being the primary performance indicators. The optimization model effectively maximizes both thermal and exergetic efficiencies, with water and helium achieving the highest optimal values, respectively.
SCIENTIFIC REPORTS
(2022)
Article
Green & Sustainable Science & Technology
Natraj, K. S. Reddy
Summary: Solar parabolic trough collectors are a mature technology, but improvements in structural stability and accuracy of reflectors and receivers are necessary. This study investigates the combined effect of thermo-structural instability on collector performance. Results show a decrease in optical efficiency and significant loss due to bending and deflection in the reflector and receiver. This research will benefit the design and monitoring of trough collectors.
Review
Thermodynamics
Tawfiq Chekifi, Moustafa Boukraa
Summary: This article presents a comprehensive review of the performance improvement research on parabolic trough collectors, with a focus on works using numerical methods. It outlines the possible further developments of these devices and identifies areas that need more attention and investigation.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Review
Energy & Fuels
Mridul Sharma, Ravindra Jilte
Summary: Solar energy harnessing, particularly using parabolic trough solar collectors, is common in many countries for applications like distributing process heat and steam production. Focus has been on improving the thermal potential of the receiver tube, with passive techniques such as inserts and geometrical changes showing efficiency in increasing thermal performance. Studies on heat transfer enhancement strategies using inserts and geometrical modifications in parabolic trough solar collector's receiver tube indicate potential for further growth in this area.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Muhammed A. Hassan, Aya Fouad, Khaled Dessoki, Loiy Al-Ghussain, Ahmed Hamed
Summary: This study investigates the performance of four double-glazed receivers by comparing the evacuated and non-evacuated annular spaces and varying the absorber tube diameter and glass shell diameter ratios. The results show that fully evacuating the receiver and using the smallest diameter of the three concentric cylinders lead to the highest energy and exergy efficiencies. However, evacuating only the inner annular space is sufficient to achieve almost the same performance level. Double glazing the receivers is advantageous at high operating temperatures of sCO2, reducing thermal losses compared to single-glazed receivers.
Article
Green & Sustainable Science & Technology
Yu-tian Hou, Xiao-hui Yu, Bin Yang, Shuai-shuai Liu, Yao Qi
Summary: A mathematical model was developed in this paper to investigate and evaluate the optical properties of a parabolic trough solar collector (PTC) system with a flat receiver. The optimal geometric design for the same geometrical focusing ratio was derived through simulations. The study found that the optical performance has large variations in local concentration ratio (LCR) at the center of the flat receiver and is superior at rim angles of 75 degrees - 90 degrees under ideal conditions.
Article
Green & Sustainable Science & Technology
Anass Zaaoumi, Mohamed Asbik, Hajar Hafs, Abdellah Bah, Mohammed Alaoui
Summary: The paper evaluates the thermal performances of the solar field of the ISCC power plant at ABM in Morocco for the year of 2015, using mathematical modeling and COMSOL Multiphysics software to simulate the energy balance equations of the solar receiver, validate the model, and conclude that the predictions are accurate.
Article
Green & Sustainable Science & Technology
Diogo do Carmo Zidan, Cristiana Brasil Maia, Mohammad Reza Safaei
Summary: Numerical simulations were conducted to predict the performance of PTC systems operating with eight different nanofluid compositions. The model also estimated daily incident solar radiation, beneficial energy gain, overall efficiency, thermal losses, and system pressure drop.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Energy & Fuels
Muhammad Uzair, Naveed Ur Rehman, Muhammad Asif
Summary: This study developed a methodology to determine the intercept factor and investigated the effects of design parameters on the optical performance of parabolic trough collectors. The results provide insights into the influence of varying parameters on the intercept factor, which can be used by designers and researchers to optimize the design of parabolic trough collectors.
JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Mechanics
Abdullah Albaker, Nestor Cuba Carbajal, Manuel Octavio Fernandez Atho, Anderson Nunez Fernandez, Maria Del Carmen Delgado Laime, Ani Mary Borda Echavarria, Reza Alayi, Morteza Aladdin
Summary: The aim of this study is to numerically investigate the performance of a solar physical surface absorption cooling system using activated carbon/methanol as a working pair inside a parabolic-shaped solar collector. The mathematical model is based on the conservation equations and thermodynamics of the physical surface absorption process. The model is validated through comparisons with previous laboratory and numerical studies. The effects of various parameters on the system's performance are investigated, and the solar performance coefficient and specific cooling power are determined to be 0.12 and 45.6 W/kg, respectively, based on the experimental model and working conditions.
Article
Green & Sustainable Science & Technology
Bin Yang, Shuaishuai Liu, Ruirui Zhang, Xiaohui Yu
Summary: A three-dimensional optical-thermal model of parabolic trough solar collector (PTC) was proposed using Monte Carlo Ray Tracing (MCRT) method and Finite Volume Method (FVM). The model was validated by comparing simulation results with experimental data. It was found that the optical efficiency and collector efficiency of PTC can be maintained at high levels when the reflector installation error is kept below a certain value.
Review
Green & Sustainable Science & Technology
Alibakhsh Kasaeian, Koosha Mirjavadi, Peyman Pourmoghadam, Faezeh Asgari Sima, Yasaman Amirhaeri, Sara Borhani, Leila Fereidooni
Summary: This paper provides a detailed review of the literature on parabolic trough collectors (PTC) combined with organic Rankine cycles (ORC). It examines various aspects such as modeling and simulation, optimization, exergy, economics, and experimental studies. The review also highlights the impact of different parameters on the performance of the proposed systems.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Multidisciplinary
Bowen Liu, Chenggang Zong, Weidong Huang
Summary: This paper evaluates the impact of the error of the solar position algorithm (SPA) on the tracking error and efficiency of the solar trough system. The evaluation results show that most SPAs introduce errors less than 0.05%, but a few empirical algorithms with large tracking errors are not suitable for the trough solar system. Therefore, the SPA evaluation method proposed in this paper is applicable to the solar trough system.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Civil
M. Azadeh, M. M. Tavakol
Summary: The study investigated wind loads and flow field structure around an array of parabolic trough collectors using Delayed Detached Eddy Simulation method, with numerical solutions for various pitch angles showing the first PTC in the array experiencing the maximum mean pressure and the second row having the minimum mean drag coefficient, except for the stow mode.Comparisons of flow patterns around the collectors revealed high vorticity concentration in front of the collectors for specific pitch angles.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2021)
Article
Multidisciplinary Sciences
Mustafa J. Al-Dulaimi, Karima E. Amori
Summary: This study numerically and theoretically investigates the optical and thermal performance of a parabolic trough collector PTC system. The results show that the best optical design is the channel receiver with an intercept factor of 84%, while the worst is the elliptical receiver with an intercept factor of 70%. Thermally, the best design is the elliptical receiver with an average thermal efficiency of 90%, while the worst is the triangular receiver with an average thermal efficiency of 83%.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)