Article
Green & Sustainable Science & Technology
Anish Malan, K. Ravi Kumar
Summary: This study investigates the impact of wind load on the stability of a large aperture parabolic trough solar collector (PTSC) and provides analysis and estimation. The findings contribute to optimizing the structural design and operational stability of solar thermal power plants.
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)
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
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
Majid Siavashi, Mehdi Vahabzadeh Bozorg, Mohammad Hesam Toosi
Summary: The use of nanoparticle addition and porous receiver tubes can significantly improve the thermal efficiency of parabolic trough solar collectors. Different operating conditions and geometry configurations have an impact on the performance evaluation criteria and thermal efficiency of the collector.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Green & Sustainable Science & Technology
Tarun Kumar Aseri, Chandan Sharma, Tara C. Kandpal
Summary: The study explores ways to enhance the competitiveness of parabolic trough collector-based CSP plants by utilizing advanced materials and thermal storage technologies. By evaluating the impact of proposed changes on component requirements, the estimated reduction in capital costs for implementing these changes in India is approximately 12.3% to 29.9%.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Natraj, B. N. Rao, K. S. Reddy
Summary: Solar energy, an emerging technology, is increasingly utilizing concentrating power technology in solar power plants, with the structural stability of parabolic trough collectors being crucial in maintaining optical and thermal efficiencies under wind loads. The study highlights the impact of wind loads on slope deviations and the importance of yaw and pitch angles in collector design, as well as the differences in performance between collectors made of different materials.
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
Multidisciplinary Sciences
Wisam Abed Kattea Al-Maliki, Sajda S. Alsaedi, Hayder Q. A. Khafaji, Falah Alobaid, Bernd Epple
Summary: The validated dynamic model of a parabolic trough power plant (PTPP) is improved by introducing a new feedwater circuit and a reference feedwater circuit, as well as developing the steam turbine model. The purpose is to increase the power output during the day and extend the night operating hours at a lower cost. This improvement reduces the reliance on fossil fuel backup system and lowers the specific energy cost of the PTPP.
SCIENTIFIC REPORTS
(2023)
Article
Thermodynamics
P. Ferrer, Khaled Mohamad, M. C. Cyulinyana, Victor Kaluba
Summary: In this article, design approaches to a receiver enclosed in an opaque cavity and heated by a solar parabolic trough collector are discussed. The optimization of the interaction between the cavity receiver and the solar radiation from a collector mirror is explored, which differs from conventional receivers and is essential for utilizing the benefits of using a cavity sleeve. Through simulations, different focal plane positions and the relative sizes of the receiver elements are investigated, and a focal plane close to the surface of the absorber pipe is found to have the highest efficiency at 62%. An experimental cavity receiver and parabolic trough system are then built based on the simulations, and the simulation results are validated against measured data with a maximum discrepancy of 8%. A novel method using the cooling behavior of the receiver is also applied to confirm the physical parameters through simulations.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Physical
H. Derbal-Mokrane, F. Amrouche, M. N. Omari, I. Yahmi
Summary: This study investigates small-scale electrolytic hydrogen production using an Organic Rankine Cycle driven by a parabolic trough collector in the Algerian Sahara climate. The city of Ghardaia is identified as the most favorable location for implementing the proposed system, with benzene as the optimal working fluid for achieving the highest hydrogen production rate in July.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Green & Sustainable Science & Technology
Sara Ruiz-Moreno, Jose Ramon D. Frejo, Eduardo F. Camacho
Summary: Using artificial neural networks to approximate the optimal flow rate given by an MPC controller significantly reduces the computational load to 3% of the MPC computation time. The neural network controllers provide practically the same mean power as the MPC controller with less abrupt changes at the output and slight violations of the constraints.
Article
Thermodynamics
M. Arun, Debabrata Barik, K. P. Sridhar
Summary: This research analyzed the performance of a parabolic trough solar collector with a dimple tube and TiO2/DI-H2O nanofluid using computational fluid dynamics. The results showed that using nanofluids can significantly enhance the efficiency and convective heat transfer coefficient of the solar collector.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Review
Green & Sustainable Science & Technology
Anish Malan, K. Ravi Kumar
Summary: This study provides a critical summary of various raytracing techniques to investigate the optical and thermal performance of the parabolic trough solar collector (PTSC). It examines the journey of flux distribution studies, different methods like analytical approach, measurements techniques, and modeling software, with a focus on the impact of various parameters on the flux distribution. The study also suggests numerical studies for future research in this domain.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Multidisciplinary Sciences
Youssef Drira, Nadim Fakhfakh, Skander Jribi, Hatem Bentaher, Ilyes Benhassine, Lotfi Ammar
Summary: Parabolic trough collectors (PTCs) are advanced and widely used in solar concentrating systems, but their high cost and technology requirements hinder their implementation in low-income countries. This study assessed the performance of two small-scale solar thermal production units (SPLFR and PTC-SS) as alternatives to PTCs.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Physical
Brahim Laoun, Abdallah Khellaf, Mohamed W. Naceur, Arunachala M. Kannan
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2016)
Article
Chemistry, Physical
Brahim Laoun, Mohamed W. Naceur, Abdallah Khellaf, Arunachala M. Kannan
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2016)
Review
Green & Sustainable Science & Technology
Kacem Gairaa, Abdallah Khellaf, Youcef Messlem, Farouk Chellali
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2016)
Article
Thermodynamics
Noureddine Yamani, Abdallah Khellaf, Kamal Mohammedi, Omar Behar
Article
Chemistry, Physical
H. Tebibel, A. Khellaf, S. Menia, I. Nouicer
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Chemistry, Physical
F. Z. Aouali, M. Becherif, H. S. Ramadan, M. Emziane, A. Khellaf, K. Mohammedi
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Chemistry, Physical
Sabah Menia, Hammou Tebibel, Fatiha Lassouane, Abdallah Khellaf, Ilyes Nouicer
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Editorial Material
Chemistry, Physical
A. Khellaf, S. S. Voutetakis, A. N. M. Kannan, R. Boudries
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Physical
Malika Ouagued, Abdallah Khellaf, Larbi Loukarfi
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Green & Sustainable Science & Technology
Said Benkaciali, Mourad Haddadi, Abdellah Khellaf
Article
Energy & Fuels
Wafa Braham Chaouch, Abdellah Khellaf, Ahmed Mediani, Mohamed El Amine Slimani, Akil Loumani, Abdelkader Hamid
Proceedings Paper
Green & Sustainable Science & Technology
Sabah Menia, Fatiha Lassouane, Hamou Tebibel, Abdallah Khellaf
EXERGY FOR A BETTER ENVIRONMENT AND IMPROVED SUSTAINABILITY 2: APPLICATIONS
(2018)
Proceedings Paper
Green & Sustainable Science & Technology
Amina Gueridi, Abdallah Khellaf, Djaffar Semmar, Larbi Loukarfi
EXERGY FOR A BETTER ENVIRONMENT AND IMPROVED SUSTAINABILITY 2: APPLICATIONS
(2018)
Proceedings Paper
Energy & Fuels
Kacem Gairaa, Abdellah Khellaf, Said Benkacilai, Mawloud Guermoui
POWER AND ENERGY SYSTEMS ENGINEERING, (CPESE 2017)
(2017)
Proceedings Paper
Energy & Fuels
H. Tebibel, S. Labed, A. Khellaf, C. Ziogou, S. Papadopoulou, S. Voutetakis
2015 INTERNATIONAL CONFERENCE ON RENEWABLE ENERGY RESEARCH AND APPLICATIONS (ICRERA)
(2015)
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)