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)
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
Green & Sustainable Science & Technology
M. Allam, M. Tawfik, M. Bekheit, E. El-Negiry
Summary: This paper discusses the necessity of utilizing solar energy in power generation or industrial thermal processes, focusing on Concentrated Solar Power (CSP) and Parabolic Trough Concentrator (PTC) technologies. It also examines how inserts can enhance the thermal performance of PTCs and presents research trends in thermal enhancing approaches via inserts, including a statistical bibliometric analysis of the literature. Additionally, the paper delves into the thermo-physical properties and combinations of nanoparticles and base-fluids in nanofluids HTFs, revealing research prospects in this area.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
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
Engineering, Multidisciplinary
M. Farooq, M. Farhan, Gulzar Ahmad, Zia ul Rehman Tahir, M. Usman, M. Sultan, M. Saad Hanif, M. Imran, Saqib Anwar, Ahmed M. El-Sherbeeny, M. Ali Shakir
Summary: Due to rapid industrialization and urbanization, the increase in carbon emissions in the atmosphere and the depletion of fossil fuel and gas reserves have led to the search for alternative renewable energy resources. Solar energy is considered as one of the most promising sources. This study analyzes the effect of multiple working fluids on the efficiency of parabolic trough solar collectors (PTCs) using Computational Fluid Dynamics (CFD) analysis. Two types of nanofluids, Alumina and Copper-oxide, are used to evaluate the thermal efficiency of PTC through CFD simulations. The study also investigates the impact of absorber tube material and receiver tube length on the working fluid's temperature. The results suggest that nanofluids-based PTCs system shows promise for sustainable environmental applications.
ALEXANDRIA ENGINEERING JOURNAL
(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.
Article
Green & Sustainable Science & Technology
Sanaz Akbarzadeh, Mohammad Sadegh Valipour
Summary: This experimental study investigated the effects of corrugated tubes at different pitch ratios on the performance of parabolic trough collectors (PTCs). The results showed that PTCs using corrugated tubes had the highest performance in the transitional regime, with a maximum Nusselt number increase of 4.2 and a thermal performance factor increase of 26%-176%.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(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)
Article
Energy & Fuels
Oveepsa Chakraborty, Biplab Das, Rajat Gupta
Summary: This study investigates the performance of parabolic trough collectors with rotating receiver tubes and elliptical inserts. By utilizing hybrid nanofluid as the working medium and adjusting the flow rate and receiver speed, enhanced temperature, heat transfer coefficient, and thermal efficiency are achieved. The use of rotating receiver tubes and elliptical inserts mitigates the uneven temperature distribution and improves the overall efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
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
Thermodynamics
Kun Wang, Zhen-Dong Zhang, Ming-Jia Li, Chun-Hua Min
Summary: Non-uniform solar flux distribution can induce significant secondary flow of S-CO2 in PTR, improving convective heat transfer. However, both high operating pressure and non-uniform solar flux distribution can cause remarkable mechanical stress in PTR, with the superposition of the two aggravating the stress.
APPLIED THERMAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Ashokkumar Shyam, Kalilur Rahiman Arshad Ahmed, Sathiya Satchi Christopher, Selvarasan Iniyan
Summary: This study presents an improved thermal performance of a solar parabolic trough collector through the optimization of secondary optics. The experimental results show that the proposed model outperforms the standard one, with higher thermal efficiency and heat transfer coefficient.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Green & Sustainable Science & Technology
N. Sreenivasalu Reddy, S. Gowreesh Subramanya, K. C. Vishwanath, M. Karthikeyan, S. Kanchiraya
Summary: The experimental study shows that using a rotary receiver tube can significantly improve the performance of the parabolic trough collector, especially when increasing the friction factor. Additionally, thermal efficiency of the collector can be improved by reducing the inlet temperature and increasing the flow rate.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Environmental Studies
Oveepsa Chakraborty, Biplab Das, Rajat Gupta
Summary: This study compares the thermal capacity of parabolic solar trough collectors with different inserts, including spherical-shaped balls and two types of elliptical inserts. A hybrid nanofluid is used as the heat-carrying liquid, which consists of CuO and Al2O3 nanoparticles mixed in distilled water. Computational analysis is conducted to study the thermal and flow trends in the tube receiver. The results show that the elliptical inserts of minor diameter 12 mm in the receiver exhibit improvements of 13.3% in thermal efficiency, 10.02% in Nusselt number, and 16% in thermal performance index compared to spherical ball inserts. The highest pump work of 35 W is associated with spherical inserts at 0.033 kg/s.
ENERGY & ENVIRONMENT
(2023)
Article
Green & Sustainable Science & Technology
Mohamed Allam, Mohamed Tawfik, Maher Bekheit, Emad El-Negiry
Summary: This study investigates the impact of different helical shaft inserts on the performance of a parabolic trough collector. The results show that the helical shaft insert can enhance the thermal performance and efficiency of the collector, but it also increases the required pumping power. The thermal efficiency and friction factor can reach their maximum values at specific shaft rotational speeds and flow rates of the heat transfer fluid. From an economic perspective, using a rotating helical shaft can reduce the annual cost of useful heat per kWh.
Article
Energy & Fuels
Sree Harsha Bandaru, Victor Becerra, Sourav Khanna, Harold Espargilliere, Law Torres Sevilla, Jovana Radulovic, David Hutchinson, Rinat Khusainov
Summary: The study proposes a model based on multi-criteria decision analysis for evaluating the feasibility of solar energy projects and determining the best options. In a real-world photovoltaic solar farm project, the results indicate that options without battery storage and more off-taker connections are more favorable.
Article
Thermodynamics
Akash K. Gupta, Rahul Yadav, Malay K. Das, Pradipta K. Panigrahi
Summary: This paper introduces and tests a multi-layer radiation propagation model for simulating dissociating hydrate reservoirs under microwave heating, showing that dielectric properties of sediments and water content significantly impact radiation attenuation and hydrate dissociation. The multi-layer model provides better control over reservoir heterogeneity and interface conditions compared to existing models.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2022)
Article
Chemistry, Physical
Randeep Ravesh, Ayaj A. Ansari, Pradipta K. Panigrahi, Malay K. Das
Summary: The study investigates the impact of surfactant crowding on hydrate growth and detachment of crystals from the liquid-droplet interface. It was found that surfactant crowding promotes radial hydrate growth and the formation of hydrate columns, with crystals detaching more easily at higher surfactant concentrations.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Mussad Alzahrani, Anurag Roy, Katie Shanks, Senthilarasu Sundaram, Tapas K. Mallick
Summary: Experimental characterizations show that using graphene as pre-illumination cooling technique can significantly reduce the device temperature in concentrated photovoltaic system, improve the efficiency of solar cells, and is an effective method.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Energy & Fuels
Idris Al Siyabi, Sourav Khanna, Tapas Mallick, Senthilarasu Sundaram
Summary: Thermal energy storage using Phase Change Materials (PCMs) is currently of great interest, and the use of multiple PCM technique has been shown to enhance thermal performance in a shell-and-tube heat exchanger. Both experimental and numerical studies demonstrate that the multiple PCM arrangement results in a higher average temperature of PCM compared to other arrangements.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Thermodynamics
Sourav Khanna, Preeti Singh, Vijay Mudgal, Sanjeev Newar, Vashi Sharma, Victor Becerra, K. S. Reddy, Tapas K. Mallick
Summary: This study investigates the use of Thermal Conductivity Enhancing Containers (TCEC) to improve the charging efficiency, thermal energy storage, and electrical efficiency of solar photovoltaics (PV) with phase change material (PCM). The results show that the proposed TCEC can significantly increase the charging efficiency and thermal energy storage rate of PCM, leading to an improvement in the PV electrical efficiency.
Article
Energy & Fuels
Rajvikram Madurai Elavarasan, Preeti Singh, S. Leoponraj, Sourav Khanna, Mohanraj Chandran
Summary: This study explores a method of using hydrated salt-based PCM and aluminum sheet for cooling to improve the efficiency of photovoltaic (PV) panels. The experimental and numerical simulation results show that the cooled PV panel has higher efficiency and lower temperature compared to the uncooled PV panel.
JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Chemistry, Multidisciplinary
Yu Han, Yan Yang, Tapas Mallick, Chuang Wen
Summary: This study proposes the use of phase change materials (PCM) as thermal energy storage units to enhance the stability and flexibility of solar-energy-based heating and cooling systems. A mathematical model is developed to evaluate the melting process of PCM, taking into consideration the effect of nanoparticles on heat transfer. The results show that natural convection plays a dominant role in the flow behavior of PCM melting, and the addition of Al2O3 nanoparticles improves PCM melting performance but higher thermal conductivity does not contribute significantly to the melting performance of PCMs.
Article
Physics, Fluids & Plasmas
Bal Krishan Mishra, Archana Gupta, P. K. Panigrahi
Summary: A dielectric-barrier-discharge plasma actuator with annular shape electrode geometry has been studied for its effectiveness in flow control applications. The study found that continuous-mode actuation generates higher velocity and the velocity of the wall-normal jet gradually decays. The overall flow field can be divided into four zones and the actuator induces various types of vortices. The wall-normal jet generated by the actuator has a self-similar velocity profile similar to a free jet, and the vortex structure in burst mode is related to the burst frequency.
PHYSICAL REVIEW FLUIDS
(2022)
Article
Energy & Fuels
Rahul Yadav, Akash K. Gupta, Malay K. Das, P. K. Panigrahi
Summary: Numerical investigations were conducted on a novel technique of controlled microwave heating for gas recovery from methane hydrate reservoirs. The results showed that the proposed control method significantly improved gas recovery and energy output, and exhibited high overall energy efficiency.
Review
Energy & Fuels
Mustafa Majid Rashak Al-Fartoos, Anurag Roy, Tapas K. K. Mallick, Asif Ali Tahir
Summary: This article discusses the use of thermoelectric glazing as a sustainable material to improve thermal performance and generate green electricity. It provides detailed instructions and potential solutions for building and optimizing this system. The thermoelectric figure of merit of these materials offers new perspectives for future energy-positive built environments and plays a crucial role in addressing the energy crisis.
Review
Energy & Fuels
Sreeram Valsalakumar, Anurag Roy, Tapas K. Mallick, Justin Hinshelwood, Senthilarasu Sundaram
Summary: The power conversion efficiencies of Perovskite solar cells have significantly improved between 2012 and 2022. These solar cells have excellent optoelectronic properties and can be manufactured using low-cost materials. This review article explores scalable perovskite deposition techniques, including the fabrication of high-quality perovskite film, their stabilities, and commercialization status. Various deposition techniques, such as spin coating and slot die coating, as well as vapour-assisted deposition approaches, are discussed. These techniques offer advantages in terms of cost, mask-less patterning, and design freedom.
Review
Energy & Fuels
Maria Khalid, Tapas Kumar Mallick
Summary: Perovskite solar cells (PSCs) have shown great potential as the next generation of PV devices due to their rapidly increasing power conversion efficiencies. However, their long-term stability is a critical issue that needs to be addressed before commercialization. This review discusses the evolution of solar cells, the characteristics of perovskite, strategies to improve performance, and the relationship between stability and environmental conditions. Additionally, the review explores the idea of implementing PSCs with concentrated PV applications for higher efficiency and competitiveness.
Article
Mechanics
Sourabh Dhawan, Malay Kumar Das, Pradipta Kumar Panigrahi
Summary: The research investigates the effectiveness of geometric modification in stabilizing viscoelastic fluid flow through a planar channel. The square cylinder positioned in front of the contraction plane pre-deforms the fluid, causing significant changes in flow characteristics. The study demonstrates that pre-deformation of the fluid stabilizes flow in a specific range and reduces the size of corner vortex in another range. Furthermore, an increase in a certain parameter initiates elastic turbulence in the flow.
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.