Article
Energy & Fuels
Salima El Ayane, Ali Ahaitouf
Summary: Concentrated Photovoltaic (CPV) is a promising technology for higher efficiency power generation, but its long-term reliability issues and high cost hinder its commercial application. Micro photovoltaic concentrators have been introduced as an alternative to address these challenges and improve performance.
Review
Green & Sustainable Science & Technology
Faisal Masood, Nursyarizal Bin Mohd Nor, Perumal Nallagownden, Irraivan Elamvazuthi, Rahman Saidur, Mohammad Azad Alam, Javed Akhter, Mohammad Yusuf, Mubbashar Mehmood, Mujahid Ali
Summary: This article provides a comprehensive review of the historical and recent developments of compound parabolic concentrating (CPC)-based hybrid photovoltaic/thermal (PVT) systems. The review focuses on the heat extraction mechanisms and commonly used application areas of CPC-PVT systems. The outputs of CPC-PVT systems are generally found to be superior to their counterparts without CPCs, making them a promising solution for rooftop and building facade integrated applications.
Article
Thermodynamics
M. U. Siddiqui, M. F. Shahab, O. K. Siddiqui, H. Ali, Syed M. Zubair
Summary: This paper focuses on the multi-physics modeling of photovoltaic modules with solar concentration and cooling. The study examines different designs of solar concentrators and cooling systems on the electrical performance of the photovoltaic system. The results show that the compound parabolic concentrator achieves a high concentration ratio but leads to non-uniformity of irradiance and temperature, while the V-trough concentrator design performs better in terms of electrical performance.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Xueyan Zhang, Jiayue Li, Jun Chen, Fei Chen
Summary: In this paper, the surface structure of LFL-CPC is optimized based on the linear Fresnel lens principle and the MCRT method. The laser verification experiment shows that the performance of LFL-CPC is consistent with the theoretical design. Compared with S-CPC, LFL-CPC can expand its receiving angle and effectively concentrate solar rays within the range of all incidence angles, making it more weather adaptable.
Article
Thermodynamics
Shi-Jie Xu, Shuang-Ying Wu, Lan Xiao, Zhi-Li Chen
Summary: This study investigated the effects of tilt angle on the performance of compound parabolic concentrating photovoltaic system using the coupled Monte Carlo ray tracing and finite volume method. The results show that an increase in tilt angle leads to a decrease in the uniformity of irradiation flux and temperature distribution.
Article
Thermodynamics
Xueyan Zhang, Xin Wang, Zhongzhe Li, Huilong Luo, Fei Chen
Summary: The study focused on the SCSA-CPC concentrator without gap loss, which separates the concentrating surface from the absorber, reducing thermal deformation caused by thermal stress. The SCSA-CPC demonstrated higher optical efficiency compared to the S-CPC, with a more uniform energy flux distribution on the absorber surface.
Article
Chemistry, Multidisciplinary
Han Xu, Shuai Chen, Renzhi Hu, Muqun Hu, Yang Xu, Yeowon Yoon, Yong Chen
Summary: A new continuous projection-based vat photopolymerization process is reported that can directly shape polymer materials into optical lenses with microscale dimensional accuracy and nanoscale surface roughness without post-processing. The process utilizes frustum layer stacking to eliminate staircase aliasing, and a zooming-focused projection system to achieve continuous change of mask images and generate desired layer stacking. Experimental results demonstrate the effectiveness of the proposed process.
Review
Green & Sustainable Science & Technology
Waseem Iqbal, Irfan Ullah, Seoyong Shin
Summary: Energy needs have increased with global advancements and industrial revolutions. Solar energy utilization is a cost-effective, sustainable, and green solution to meet the ongoing energy demand. This paper provides an overview of the recent optical developments in concentrator photovoltaic (CPV) systems and presents future research directions to improve their efficiency and facilitate their growth.
Article
Thermodynamics
Xueyan Zhang, Shuoxun Jiang, Ziming Lin, Qinghua Gui, Fei Chen
Summary: This paper studied the A-CPC with circular absorber operating at horizontal condition. Based on the edge ray principle, the mathematical model of A-CPC with circular absorber was theoretically constructed, and the concentration performance was verified by the visual experiment. The study found that the A-CPC has higher average optical efficiency, stronger adaptability to weather conditions, and higher total annual radiation collection amount compared to the S-CPC.
Article
Green & Sustainable Science & Technology
Hamza Riaz, Muzaffar Ali, Javed Akhter, Nadeem Ahmed Sheikh, Muhammad Rashid, Muhammad Usman
Summary: An involute-shaped solar compound parabolic collector (CPC) with a variable concentration ratio along its length was developed and analyzed in terms of its optical and thermal performance. The results showed that the collector installed in the east-west (E-W) direction had better optical and thermal performance compared to the north-south (N-S) orientation.
Article
Environmental Sciences
F. Murena, D. Toscano
Summary: The study measured the number concentration of fine particles using the CPC technique and investigated its correlation with aspect ratio and local traffic. The results showed that both aspect ratio and local traffic significantly impacted the fine particle concentrations.
Article
Energy & Fuels
Muhammad Khalid, Jinjia Wei, Sunila Bakhsh, Mumtaz A. Qaisrani, Muhammad Sohail, Jiabin Fang
Summary: This paper evaluates low-profile solar concentrators with low-material consumption that improve the optical performance of Crossed-Compound-Parabolic-Concentrators (CCPCs) by using Eliminating-Multiple-Reflections (EMR). Three CCPC designs, LEMR, HEMR, and hybrid, were analysed using Monte-Carlo ray tracing, with optical efficiency and light flux uniformity as primary metrics. The results showed that the LEMR and HEMR CCPCs achieved high optical efficiency and low light flux non-uniformity, while the hybrid CCPC had advantages for seasonal tracking applications.
Article
Engineering, Electrical & Electronic
Li-Zhao Song, Maral Ansari, Pei-Yuan Qin, Stefano Maci, Jia Du, Y. Jay Guo
Summary: High aperture efficiency 2-D multibeam gradient index lenses are developed in this work. New methods based on bifocal analysis are employed to determine the refractive index profile of the lens and enable independent wide-angle multibeam radiations. The lenses achieve stable multibeam radiation patterns in a wide frequency range with high beam coverage and aperture efficiency.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Energy & Fuels
Duc Tu Vu, Ngoc Hai Vu, Seoyong Shin, Thanh Tuan Pham
Summary: This article introduces a new optical device - cylindrical Fresnel lenses, historically used in lighthouse concentrators, for application in the field of concentrator photovoltaic. The solar concentrator has the ability to distribute focal points over an arc at any light incidence and has a high acceptance angle. Through simulation and experimentation, the convergence feature and current gain improvement of the new lens design were confirmed.
Article
Materials Science, Multidisciplinary
Hossein Eskandari
Summary: A two-dimensional half Maxwell fish-eye lens is compressed using a linear transformation to map a half circle to a half ellipse. The compact design preserves the focusing property of the lens while suppressing boundary reflections for beams directed towards the lens' optical axis. The functionality of the designed prototype, verified using COMSOL multiphysics, provides a scanning range of +/- 20 degrees with negligible reflections.
FRONTIERS IN MATERIALS
(2022)
Article
Thermodynamics
Guiqiang Li, Gang Pei, Jie Ji, Yuehong Su, Hang Zhou, Jingyong Cai
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2016)
Article
Thermodynamics
Jing Li, Jahan Zeb Alvi, Gang Pei, Yuehong Su, Pengcheng Li, Guangtao Gao, Jie Ji
Article
Construction & Building Technology
Xiangjie Chen, Yuehong Su, Devrim Aydin, David Reay, Richard Law, Saffa Riffat
ENERGY AND BUILDINGS
(2016)
Article
Thermodynamics
Adham Makki, Siddig Omer, Yuehong Su, Hisham Sabir
ENERGY CONVERSION AND MANAGEMENT
(2016)
Review
Green & Sustainable Science & Technology
Xiangjie Chen, Yuehong Su, David Reay, Saffa Riffat
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2016)
Article
Thermodynamics
Xiangjie Chen, Yuehong Su, Devrim Aydin, Yate Ding, Shihao Zhang, David Reay, Saffa Riffat
APPLIED THERMAL ENGINEERING
(2018)
Article
Energy & Fuels
Rizwan Rasheed, Abdullah Yasar, Sajid Rashid Ahmad, Amtul Bari Tabinda, Saboor Ahmad Khan, Yuehong Su
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2018)
Article
Optics
Zhongsheng Zhai, Yanhong Zhang, Xuanze Wang, Zhengqiong Dong, Zhuang Cheng, Qinghua Lv, Yuehong Su
OPTICS AND LASER TECHNOLOGY
(2019)
Article
Green & Sustainable Science & Technology
Rizwan Rasheed, Hajra Javed, Asfra Rizwan, Faiza Sharif, Abdullah Yasar, Amtul Bari Tabinda, Sajid Rashid Ahmad, Yubo Wang, Yuehong Su
Summary: The energy mix in developing countries is largely fueled by fossilized resources, leading to environmental challenges. A recent case study of a cleaner coal-fired power plant in Pakistan under the China-Pakistan Economic Corridor project shows the importance of technological advancements for cleaner energy production. Lifecycle analysis of the plant reveals significant impacts in climate change potential category, highlighting the need for ongoing research and policy development to enhance energy sustainability in developing nations.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Computer Science, Information Systems
Abdullah Alshahrani, Siddig Omer, Yuehong Su
Summary: As the penetration level of PV systems into the grid increases, grid operators will face increasingly variable net load patterns and steeper ramping events. Additionally, flexibility measures targeting each grid constraint are required as the penetration level of PV systems increases.
Article
Thermodynamics
James Riffat, Cagri Kutlu, Emmanuel Tapia-Brito, Samuel Tekpetey, Francis B. Agyenim, Yuehong Su, Saffa Riffat
Summary: This paper presents the development of a sustainable and affordable domestic refrigerator that uses a miniature refrigeration unit based on a micro DC compressor. Experimental results show that the use of phase change materials can extend cooling time, but the energy-saving effect in field tests is limited.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2022)
Article
Construction & Building Technology
Muna Alsukkar, Mingke Hu, Mohamed Gadi, Yuehong Su
Summary: The study focuses on the daylighting performance of a split louver with simplified parametric control, enabling the reflection of daylight and control of light in both front and rear areas. This design has the potential to provide consistent and distributed daylight coverage as well as a glare-free environment.
Review
Construction & Building Technology
Suhendri, Mingke Hu, Yuehong Su, Jo Darkwa, Saffa Riffat
Article
Green & Sustainable Science & Technology
Pengcheng Li, Jing Li, Guangtao Gao, Gang Pei, Yuehong Su, Jie Ji, Bin Ye
Article
Thermodynamics
Marco Bortoloni, Michele Bottarelli, Yuehong Su
APPLIED THERMAL ENGINEERING
(2017)