Article
Green & Sustainable Science & Technology
Alibakhsh Kasaeian, Amir Kouravand, Mohammad Amin Vaziri Rad, Siavash Maniee, Fathollah Pourfayaz
Summary: This paper reviews previous studies on the applications of solar dish concentrators, focusing on different cavity receiver geometries and their optimization methods. Results show that the geometry of the cavity receiver has a significant impact on thermal efficiency, playing a crucial role in improving system efficiency.
Article
Thermodynamics
Sayuj Sasidharan, Pradip Dutta
Summary: This paper investigates the thermal performance of a hybrid tubular and cavity solar thermal receiver using coupled optical-flow-thermal analysis. It is found that radiation emission from a heated cavity wall to the ambient is the dominant mode of heat loss from the receiver. The study suggests designing fluid flow path adjacent to the surface exposed to irradiation of concentrated flux to limit conduction heat loss.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2021)
Review
Thermodynamics
B. Kalidasan, Muhammed A. Hassan, A. K. Pandey, Subramaniyan Chinnasamy
Summary: Hollow cavity receivers are a new type of structure that overcomes the drawbacks of conventional evacuated tube receivers. They have advantages such as extended working temperature ranges, reduced thermal losses, and improved efficiency. Future research should focus on optimization and economic assessments to promote the diversified development of the solar receiver industry.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Jonathan K. Swanepoel, Willem G. le Roux, Axel S. Lexmond, Josua P. Meyer
Summary: This study experimentally investigates steam generation using low-cost helically coiled cavity receivers and novel solar concentrators made from off-the-shelf components. High thermal efficiencies were achieved, highlighting important design aspects to consider in future work.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Jiabin Fang, Canghong Zhang, Nan Tu, Jinjia Wei, Mumtaz A. Qaisrani, Junyao Wei, Zhi Zhou, Bin Xiao
Summary: An optical thermal stress computational model was used to analyze heat transfer and thermal stress in the absorber tubes of a central receiver in a concentrated solar power plant. The results showed significant differences in thermal stress between boiling and superheated tubes, with the peak stress of superheated tubes being 54% higher. Increasing mass flow rate was found to effectively reduce thermal stress in superheated tubes, but not in boiling tubes. Careful control of boiling to avoid complete evaporation is recommended to prevent non-linear axial temperature gradients and appreciable stress.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Jiabin Fang, Canghong Zhang, Nan Tu, Jinjia Wei, Zhenjie Wan
Summary: The solar cavity receiver is a critical component in a solar power tower system. This study focused on investigating the thermal and mechanical performance of the receiver, revealing highly non-uniform heat flux, wall temperature, and thermal stress distributions on the absorber panels. Additionally, the causes of thermal stress induced by different temperature gradients were analyzed in detail, providing important insights for the safe operation of the system.
APPLIED THERMAL ENGINEERING
(2021)
Review
Energy & Fuels
Akanksha Maurya, Anoop Kumar, Deepak Sharma
Summary: This paper provides a comprehensive review of research on solar cavity receiver and offers suggestions for improving system performance. The focus of the research is on increasing thermal efficiency and reducing heat loss, and various parameters that affect receiver performance are analyzed. Heat loss models and mechanisms are also discussed. The article covers a wide range of literature and presents thermal efficiency results for different types of cavity receivers.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2022)
Article
Energy & Fuels
Yu Qiu, Yucong Xu, Qing Li, Jikang Wang, Qiliang Wang, Bin Liu
Summary: The parabolic trough collector with a modified receiver enhanced by solar and hot mirrors can achieve higher optical efficiency compared to conventional receivers, especially under high irradiance and low temperature conditions. The addition of solar and hot mirrors can effectively improve the optical-thermal efficiency of the collector.
Article
Energy & Fuels
Yining Tang, Zhiwei Sun, Zhao Tian, Alfonso Chinnici, Timothy Lau, Woei Saw, Graham J. Nathan
Summary: This study presents direct measurements and numerical predictions of particle egress from a vortex-based particle solar receiver. The study investigates the control strategy and finds that significant over-ventilation is required to mitigate particle egress. Slight over-ventilation is found to be the most significant factor in controlling particle egress.
Article
Energy & Fuels
Shen Du, Ming-Jia Li, Ya-Ling He, Sheng Shen
Summary: A porous volumetric solar receiver using molten salt as the heat transfer fluid shows higher thermal efficiency compared to traditional air receivers, with a 9.6% improvement at an outlet temperature of 1000 K. The molten salt receiver has a large heat storage capacity and efficient convective heat transfer, requiring a smaller mass flow rate and resulting in significantly smaller pressure drop. Additional research on this type of receiver is outlined for experimental verification and application with high temperature molten salt.
Article
Thermodynamics
Zou Chongzhe, Zhang Yanping, Quentin Falcoz, Pierre Neveu
Summary: The cavity receiver research is important for the development of solar energy technology. By dividing the cavity into different sections and investigating critical parameters, an optical simulation model was proposed to solve the heat flux distribution and cavity absorption efficiency. The results showed high absorption efficiency under specific conditions, but there were also safety risks involved.
Article
Thermodynamics
Prashant Mishra, Mukesh Pandey, Yutaka Tamaura, Sumit Tiwari
Summary: This study investigates the thermal-hydraulic behavior of CLR in a Cross Linear Concentrating Solar Power system using a combined optical and thermal analysis. The numerical model simulates the performance parameters of the receiver, showing high non-uniformity in solar flux and temperature distribution on the receiver tubes.
Article
Green & Sustainable Science & Technology
Jinli Chen, Gang Xiao, Haoran Xu, Xin Zhou, Jiamin Yang, Mingjiang Ni, Kefa Cen
Summary: This study investigates the dynamic performance of a solar collector through experiments and modeling, and the proposed method is beneficial for the design and optimization of solar collectors.
Article
Green & Sustainable Science & Technology
Abhinav Rajan, K. S. Reddy
Summary: In this study, a coupled optical-thermal investigation was conducted for a novel cavity receiver of a 40 m2 parabolic dish collector to estimate its thermal performance. The study discussed the variation of thermal performance with inclination, wind direction, wind speed, and inlet temperature. The results showed that the cavity receiver achieved an optical performance of 84.15% and a thermal performance of 73.11% under specific conditions.
Article
Green & Sustainable Science & Technology
Hai Wang
Summary: Through experimental research on a fixed-focus Fresnel lens solar concentrator/conical cavity receiver system, it was found that the system without a glass cover has higher optical efficiency, longer time constant, and better thermal efficiency under higher temperature differences.
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
