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
Oveepsa Chakraborty, Sujit Roy, Biplab Das, Rajat Gupta
Summary: The study finds that a parabolic solar trough collector with a helical absorber tube performs better in terms of heat transfer rate, efficiency, and exergy efficiency compared to traditional collectors with smooth absorber tubes. The presence of a helical absorber tube increases the net surface area of the absorber, leading to a significant enhancement in useful heat transfer rate. Overall efficiencies are 3.5%-10% higher for the helical absorber tube based PTC, showing the advantages of this design over the traditional smooth absorber tube design.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Green & Sustainable Science & Technology
Virendra Vishnu Bhagwat, Sujit Roy, Biplab Das, Nikhilkumar Shah, Avijit Chowdhury
Summary: This study investigated the performance of a heat pipe assisted parabolic trough collector with paraffin wax based phase change material for solar energy storage. The experiment was conducted in North-East India, comparing the system with and without circular fins in the heat pipe evaporator section. The presence of fins improved both charging and discharging efficiency of the latent heat storage system.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Green & Sustainable Science & Technology
Qiliang Wang, Honglun Yang, Mingke Hu, Jingyu Cao, Gang Pei, Hongxing Yang
Summary: This study analyzes the emissive heat loss around the parabolic trough solar receiver, proposes the concept of a negative thermal-flux region, and designs a new parabolic trough receiver with an inner radiation shield to reduce heat loss and enhance heat-collecting performance. This innovative approach shows great potential for breakthrough enhancement in the performance of parabolic trough collector systems.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Thermodynamics
Hayati Kadir Pazarlioglu, Recep Ekiciler, Kamil Arslan, Noor Adil Mohammed Mohammed
Summary: A numerical study was conducted on a parabolic trough collector receiver tube with elliptical dimpled fins to analyze its hydro-thermal characteristics under turbulent flow regime. Different mono and hybrid nanofluids with various nanoparticle volume fractions were used as the working fluid. The study provides a detailed analysis of the collector's exergetic and entropy production. The results show that the use of elliptical dimpled fins with an elliptical ratio of a/b=5/3 significantly increases the average Nusselt number, reduces entropy generation, and improves thermal efficiency.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Physical
Ali Bedakhanian, Akbar Maleki, S. Haghighat
Summary: This study investigated a hybrid energy system utilizing a parabolic trough solar collector to produce clean energy, focusing on thermodynamic and economic aspects. The system was optimized using a multi-objective particle swarm optimization algorithm, resulting in the identification of optimal performance parameters and outcomes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Environmental Sciences
O. Chakraborty, S. Roy, B. Das, R. Gupta
Summary: The objective of this study is to analyze the thermal performances of a parabolic trough solar collector with a helical coil-insert inside the collector tube. The study finds that increasing the number of coil turns can improve the thermal efficiency and exergy efficiency of the collector, but also increases the pump work.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Energy & Fuels
Qiliang Wang, Yao Yao, Zhicheng Shen, Hongxing Yang
Summary: A novel parabolic trough collector-photovoltaic (PTC-PV) system is proposed to enhance the thermal performance and solar utilization efficiency. Mathematical models are established and experiments are conducted to validate the superior performance of the hybrid PTC-PV system.
Article
Energy & Fuels
T. Sathish, C. Sailaja, R. Saravanan, Pelluru Suresh, M. Anish, M. Rajasimman, Usha Sambath, N. Sabarirajan, K. Muthukumar, Sang-Woo Joo, Yasser Vasseghian
Summary: Sustainable energy development is a globally important research area that requires effective design processes and sustainable energy sources. A study conducted experiments using a solar heating system with two-parabolic trough collectors (PTC) to operate a Rankine cycle-based fuel cell for hydrogen production. The results showed that by optimizing the heat transfer rate and using a flow rate of 0.38 kg/s for the heat transfer fluid (HTF), the system achieved a thermal efficiency of 82% and a heat gain of 27589 kW. Increasing the flow velocity of the HTF improved both the solar collector's efficiency and the electrical energy output for the fuel cell, resulting in higher hydrogen production rates. The study also conducted a preliminary cost analysis using the solar advisor model (SAM) to determine the electric cost of the integrated system.
Article
Thermodynamics
Recep Ekiciler, Kamil Arslan, Oguz Turgut, Burak Kursun
Summary: This study investigates the three-dimensional heat transfer and flow characteristics of different hybrid nanofluids in a parabolic trough solar collector receiver under turbulent flow conditions. Results show that hybrid nanofluids outperform the base fluid in terms of heat transfer and flow features, with heat transfer enhancement correlated to Reynolds number and nanoparticle volume fraction. Among the tested nanofluids, Ag-MgO/Syltherm 800 with 4.0% nanoparticle volume fraction is identified as the most efficient working fluid for the PTC receiver.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Review
Environmental Studies
Oveepsa Chakraborty, Sujit Roy, Biplab K. Debnath, Sushant Negi, Marc A. Rosen, Sadegh Safari, Mamdouh El Haj Assad, Rajat Gupta, Biplab Das
Summary: This study provides a comprehensive review of parabolic trough collectors (PTCs) from the perspective of design and thermal characteristics. It explores the use of nanofluids and inserts to enhance PTC performance and proposes recommendations for future research.
ENERGY & ENVIRONMENT
(2023)
Article
Energy & Fuels
Georgios E. Arnaoutakis, Dimitris Al. Katsaprakakis, Dimitris G. Christakis
Summary: This paper investigates the potential of two concentrating solar power technologies, central power towers and parabolic trough collectors, in the same plant configuration through dynamic modeling. The results show that the configuration of a power tower and parabolic trough collectors has a more stable power profile and higher capacity factor compared to standalone plants based on a single technology.
Article
Green & Sustainable Science & Technology
Mojtaba Bezaatpour, Hadi Rostamzadeh, Javad Bezaatpour
Summary: A new hybrid method using a rotary absorber tube and magnetic field inducer with nanofluid can improve the performance of parabolic trough solar collectors. Results show that there is an optimal rotational speed and magnetic field intensity for maximizing energetic and exergetic efficiencies of the system.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Mechanics
Zhanguo Su, Liguang Li, Junyan Meng, Yipping Su, Yuzhong Yao, Reza Alayi
Summary: The use of solar technologies is expanding due to accessibility and ease of integration with other systems. Concentrating solar radiation in specific areas can overcome low radiation density issues. Renewable energy faces challenges in providing continuous power supply, which can be solved using a gas microturbine system. This research investigates a hybrid gas microturbine system with a linear parabolic concentrator collector to supply thermal and electrical energy to a sports stadium. Thermodynamic modeling and evaluation of key parameters were conducted to assess power production. Notable findings include a 0.1% decrease in mechanical power with a 5℃ increase in ambient temperature, and a 3% increase in electrical and mechanical efficiencies with an annual radiation intensity of 1100 W/m(2).
Article
Thermodynamics
Kun Hong, Yang Yang, Saman Rashidi, Yu Guan, Qingang Xiong
Summary: This study numerically investigated the thermal and flow characteristics of a parabolic-trough solar collector, showing that an increase in Cu nanoparticle concentration led to an increase in Nu and that the effect on heat transfer enhancement was more significant at lower Reynolds numbers. The study also assessed the impact of direct normal irradiance changes on the performance of the solar collector.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
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.