Article
Energy & Fuels
Jinping Li, Xiaomin Liu, Xiaoxing Han, Shifan Wei, Vojislav Novakovic
Summary: This study compares the performance of two photovoltaic/thermal (PV/T) systems inside and outside a Chinese greenhouse. The results show that the outside system has better electrical performance, while the inside system has better thermal performance. The study establishes the feasibility and a new method of using PV/T technology for shading and dehumidification in cold winter regions of Chinese greenhouses.
Article
Thermodynamics
Mehmet Ali Yildirim, Artur Cebula, Maciej Sulowicz
Summary: This paper proposes an innovative thermal collector that couples the thermal behavior of photovoltaic modules and a designed cooling system to enhance the thermal and electrical conversion efficiencies of water-based photovoltaic-thermal systems. The results show that the designed cooling system achieves better performance and significantly improves the thermal and electrical conversion efficiency compared to existing solutions in the literature.
Review
Green & Sustainable Science & Technology
Yuanlong Cui, Jie Zhu, Stamatis Zoras, Jizhe Zhang
Summary: This study provides an overview of the state-of-the-art in solar photovoltaic/thermal systems with different loop-pipe configurations and nanoparticles. It explores the impacts of critical parameters on system performance and discusses the structure of solar cells, micro-thermometry analysis, and recycling process. The study demonstrates that advanced configurations and nanofluids can significantly enhance energy efficiency compared to traditional systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Review
Green & Sustainable Science & Technology
Farzad Hossain, Md Rezwanul Karim, Arafat A. Bhuiyan
Summary: The continuous increase in global energy consumption, combined with the harmful effects of fossil fuels on the atmosphere, has made the extraction of renewable energy and its conversion into electricity crucial. A hybrid photovoltaic-thermal collector offers an innovative alternative for harnessing renewable energy. The utilization of nanofluids has been found to significantly enhance the performance of hybrid PV/T solar collectors, improving overall efficiency, thermal and electrical efficiency, heat transfer characteristics, and exergy.
Article
Energy & Fuels
Bishal Podder, Agnimitra Biswas
Summary: The study proposed and experimentally investigated a novel design of a small-sized single-glazed PV/T water collector, achieving high thermal and electrical efficiency under fixed flow rate and inlet temperature. Comparisons with previous studies showed better performance of the present design.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Review
Green & Sustainable Science & Technology
Sujit Kumar Verma, Rahul Kumar, Mohit Barthwal, Dibakar Rakshit
Summary: This review is based on recent research and practices to explore the challenges and suggest solutions for the development of an efficient Photovoltaic Thermal (PVT) system. The study focuses on advancements in materials, process parameters, modeling, and simulations, as well as the integration of PVT systems with buildings.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Environmental Sciences
Shweta Singh, Rakesh Kumar Singh, Anil Kumar, Virendra Kumar, Gopal Nath Tiwari
Summary: Domestic RO systems are commonly used for water purification in households. This study explores the use of RO reject and MgO/water-based nano-fluid to enhance the performance of a photovoltaic/thermal (PV/T) system. The results show that the PV/T system's performance is improved with increased flow rate and optimal concentration of nanoparticles. The findings provide valuable insights for the practical implementation of MgO/water-based nano-fluids in PV/T systems.
Article
Energy & Fuels
Jeyraj Selvaraj, Naveenrajah Tharmarajah, Mukhamad Faeshol Umam, Laveet Kumar, Md. Hasanuzzaman, Nasrudin Abd Rahim, Abdullah Abdulmuhsen Saleh Basuhaib
Summary: Photovoltaic (PV) technology is expected to have a significant role in renewable development in Malaysia. A photovoltaic thermal (PV/T) system, which uses water to cool PV cells and increase electrical efficiency, was studied. Monocrystalline PV/T had the highest daily electrical efficiency of 16.05%, while Polycrystalline PV/T achieved 15% efficiency at a flow rate of 1.3 LPM. Monocrystalline PV/T had the best electrical efficiency, while Polycrystalline PV/T performed better in terms of thermal efficiency.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Thermodynamics
Rui Li, Jinping Li, Junjie Zhu, Xiaomin Liu, Vojislav Novakovic
Summary: This study focuses on the application of MHP-PV/T in Lanzhou, a city in northwest China. The results show that MHP-PV/T exhibits high electrical and thermal efficiency during the typical winter season. Increasing the width and number of MHPs further improves the efficiency.
Review
Green & Sustainable Science & Technology
Y. Chaibi, T. El Rha, R. Sim, I. Guedea, S. Cardamas Luaces, O. Charro Gajate, T. Kousksou, Y. Zeraouli
Summary: This paper reviews various investigations conducted in recent years on photovoltaic-thermal technology, including theoretical studies, experimental works, and mathematical optimization studies aimed at improving the efficiency of this technology in terms of electrical and thermal power. Possible applications and future development of these technologies are also discussed.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Thermodynamics
Saeed Rubaiee, Syed Mohd Yahya, M. A. Fazal, Mohd Danish
Summary: This study investigates the thermal, optical, and suspension stability of graphene oxide nanofluid and its application in photovoltaic thermal systems. The results show that GO/EG:W nanofluid has higher thermal conductivity and stability compared to other nanofluids, making it more effective in enhancing the performance of photovoltaic thermal systems.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Thermodynamics
Mohammed Alktranee, Peter Bencs
Summary: Comparing passive cooling with cotton wicks integrated with rectangular aluminium fins (CWIRAFs) submerged in water and active cooling methods using an absorbing plate and copper pipes attached at the PV module backside, the research found that CWIRAFs performed better in terms of evaporative cooling and increased heat dissipation area. Without cooling, PV modules experience significant performance degradation in hot climate conditions. The use of CWIRAFs reduced the temperature by 31.4%, increased power by 66.6%, and improved electrical efficiency from 3.12% to 8.6%. Active cooling methods reduced PV temperature by 20.8%, increased power by 56.7%, and enhanced electrical efficiency by 7.9%. Removing excess heat from the backside of the PV module through circulating water improved the thermal efficiency and overall efficiency of the PVT system by about 26.3% and 34.2%, respectively.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Energy & Fuels
Kamaruzzaman Sopian, Ali H. A. Al-Waeli, Hussein A. Kazem
Summary: This article presents a case study experimental and parametric analysis of a PV/T system with nano-phase change material and nanofluid, showing high overall efficiency but with room for improvement in electrical efficiency. The average thermal efficiency of the PV/T system is around 48.5%, and further research on temperature management of photovoltaic modules is needed to enhance its electrical efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Othman Mohammed Jasim Jasim, Selcuk Selimli, Hakan Dumrul, Sezayi Yilmaz
Summary: This study experimentally investigates the energy and exergy analysis of PV/T collector cooling using Al2O3 nanofluid circulation. The results show that the PV/T collectors with nanofluid circulation significantly improve cooling efficiency and energy output, while also achieving higher energy utilization and environmental-economic benefits.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Ehsan F. Abbas, Tahseen A. Tahseen, N. A. Madlol, Hulya S. Sulaiman, Hussein A. Z. Al-bonsrulah, Vijayanandh Raja, Mohammed Al-Bahrani
Summary: The photovoltaic/thermal (PV/T) hybrid system combines a PV panel with a thermal collector to generate both electricity and heat energy. Adding phase-change materials can enhance the efficiency of the system. The study found that adding a paraffin wax thermal storage unit to the PV/T hybrid system increased its efficiency by approximately 1.4 times compared to a system without a thermal storage unit.
INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES
(2022)
Article
Energy & Fuels
Cairui Yu, Dongmei Shen, Qingyang Jiang, Wei He, Hancheng Yu, Zhongting Hu, Hongbing Chen, Pengkun Yu, Sheng Zhang
Article
Energy & Fuels
Wei He, Pengkun Yu, Zhongting Hu, Song Lv, Minghui Qin, Cairui Yu
Article
Thermodynamics
Song Lv, Minghou Liu, Wei He, Xinlong Li, Wei Gong, Sheng Shen
ENERGY CONVERSION AND MANAGEMENT
(2020)
Review
Energy & Fuels
Song Lv, Zuoqin Qian, Dengyun Hu, Xiaoyuan Li, Wei He
Article
Energy & Fuels
Zhongting Hu, Sheng Zhang, Wenfeng Chu, Wei He, Cairui Yu, Hancheng Yu
Article
Thermodynamics
Meng Wang, Jingxin Hou, Zhongting Hu, Wei He, Hancheng Yu
Summary: This study investigated the performance of double skin facade (DSF) in hot and humid climates, finding that with optimized design parameters, an energy-saving DSF system can be designed.
BUILDING SIMULATION
(2021)
Article
Thermodynamics
Song Lv, Yishuang Ji, Zuoqin Qian, Wei He, Zhongting Hu, Minghou Liu
Summary: A novel system combining photovoltaic power generation and radiative cooling was proposed to achieve 24-hour operation. The study found that areas with drought and long sunshine time are more suitable for high system performance.
Article
Thermodynamics
Wanfang Zhao, Zhongting Hu, Wei He, Sheng Zhang, Hancheng Yu, Gaofei Xu, Hongbing Chen
Summary: The study focused on investigating heat transfer in a ground heat exchanger (GHE) system with a novel capric acid-lauric acid eutectics/expanded graphite (EG) composite PCM. Results showed that increasing the PCM fraction ratio could enhance heat exchange amount, although it also led to an increase in borehole temperature due to heat release during solidification.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Song Lv, Yishuang Ji, Zuoqin Qian, Yaoyu Pan, Yujia Zhang, Wei He
Summary: The study presented an experimental investigation and performance evaluation of the terrestrial STEG system in typical days in East China, showing that the system's performance varies with environmental conditions. Additionally, the influences of solar irradiance, cooling water temperature, and water cooling quality on system performance were discussed, along with optimization methods for running the system in real environments.
APPLIED THERMAL ENGINEERING
(2021)
Review
Thermodynamics
Zhou Jinzhi, Zhong Wei, Wu Dan, Yuan Yanping, Ji Wenhui, He Wei
Summary: The PV/T system combines photovoltaic panels with solar collectors to generate power and thermal energy concurrently. The heat pipe PV/T system has been developed to address freezing issues in winter, ensuring stable energy supply. This paper independently analyzes the structure, performance, and future research directions of the heat pipe PV/T system.
JOURNAL OF THERMAL SCIENCE
(2021)
Article
Thermodynamics
Wanfang Zhao, Wei He, Zhongting Hu, Xiaoyu Zheng, Sheng Zhang, Gaofei Xu, Hongbing Chen, Yanping Yuan
Summary: The study explores the use of switchable ETFE cushions to control natural light and heat flux, with ETFE1 identified as the optimal option for energy savings and improved indoor lighting. The dynamic mechanism of ETFE cushions shows significant improvements in indoor natural light and thermal environment, especially in office settings.
BUILDING SIMULATION
(2022)
Article
Construction & Building Technology
Wenfeng Chu, Wei He, Qingyang Jiang, Sheng Zhang, Zhongting Hu, Gaofei Xu, Yanping Yuan, Jianhua Fan
Summary: This paper proposes an optimization model based on TOU-price to improve the operation strategy of grid interactive regional energy system, maximizing power flexibility and enhancing system economy, serving as a reference for other regional energy systems.
ENERGY AND BUILDINGS
(2021)
Article
Green & Sustainable Science & Technology
Cairui Yu, Dongmei Shen, Wei He, Zhongting Hu, Sheng Zhang, Wenfeng Chu
Summary: The study found that the phase transition temperature of the PCM significantly influences the thermal behavior of the MHP-RC-PCM wall, while the latent heat of the PCM has little effect. The cooling load reduction ratio was around 4% at T-m = 31 degrees Celsius, higher than at T-m = 26 degrees Celsius. Additionally, the year-round energy-saving of the MHP-RC-PCM wall was approximately 18.2% greater than that of a Brick wall with the same thickness, and 0.4% higher than that of a PCM wall in Guangzhou City, China.
Article
Energy & Fuels
Zhongting Hu, Maosheng Zhu, Wei He, Xin Meng, Cuiqin Yang, Zhao Xu
Summary: The temperature behavior and heat transfer evaluation of a ground heat exchanger (GHE) were investigated through small-scale experiments. The results showed that soil humidification during the heating phase had a positive effect on heat transfer performance, while the impact of the heat source on soil temperature rise diminished after a certain pump operation time.
Article
Thermodynamics
Ying Nie, Wei He, Xianghua Liu, Zhongting Hu, Hancheng Yu, Haixiang Liu
Summary: This study presents a smart luminescent solar concentrator (LSC) for building integrated concentrating photovoltaic (BICPV) windows. The proposed smart LSC combines fluorescent dyes with thermochromic materials to enhance photoelectric conversion efficiency and create a dynamic response mechanism to solar radiation and temperature changes. By conducting optical simulations and outdoor experiments, the research provides design parameters for a BICPV smart window system with improved power generation efficiency.
BUILDING SIMULATION
(2022)
Article
Thermodynamics
Hai Zhao, Puzhen Gao, Xiaochang Li, Ruifeng Tian, Hongyang Wei, Sichao Tan
Summary: This study numerically investigates the interaction between flow-induced vibration and forced convection heat transfer in a tube bundle. The results show that the impact of flow-induced vibration on heat transfer varies in different flow velocity regions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rohit Chintala, Jon Winkler, Sugirdhalakshmi Ramaraj, Xin Jin
Summary: The current state of fault detection and diagnosis for residential air-conditioning systems is expensive and not suitable for widespread implementation. This paper proposes a cost-effective solution by introducing an automated fault detection algorithm as a screening step before more expensive tests can be conducted. The algorithm uses home thermostats and local weather information to identify thermodynamic parameters and detect high-impact air-conditioning faults.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
A. Azimi, N. Basiri, M. Eslami
Summary: This paper presents a novel optimization algorithm for improving the water-film cooling system of photovoltaic panels, resulting in a significant increase in net energy generation.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Duc-Thuan Phung, Chin-Hsiang Cheng
Summary: In this study, a novel CFDMD model is used to analyze and investigate the behavior of thermal-lag engines (TLE). The study shows that the CFDMD model effectively captures the thermodynamic behavior of the working gas and the dynamic behavior of the engine mechanism. Additionally, the study explores the temporal evolution of engine speed and the influence of various parameters on shaft power and brake thermal efficiency. The research also reveals the existence of a thermal-lag phenomenon in TLE.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Haiying Yang, Yinjie Shen, Lin Li, Yichen Pan, Ping Yang
Summary: The purpose of this article is to find a measure to improve the interfacial thermal transfer of graphene/silicon heterojunction. Through molecular dynamics simulation, it is found that surface modification can significantly reduce the thermal resistance, thereby improving the thermal conductivity of the graphene/silicon interface.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Qiong Wu, Yancheng Wang, Haonan Zhou, Xingye Qiu, Deqing Mei
Summary: This article introduces a visible methanol steam reforming microreactor, which uses an optical crystal as an observation window and measures the reaction temperature in real-time using infrared thermography. The results show that under lower oxygen to carbon ratio conditions, the microreactor has a higher heating rate and a stable gradient in temperature distribution.
APPLIED THERMAL ENGINEERING
(2024)
Review
Thermodynamics
Giulia Manco, Umberto Tesio, Elisa Guelpa, Vittorio Verda
Summary: In the past decade, there has been a growing interest in studying energy systems for the combined management of power vectors. Most of the published works focus on finding the optimal design and operations of Multi Energy Systems (MES). However, for newcomers to this field, understanding how to achieve the desired optimization details while controlling computational expenses can be challenging and time-consuming. This paper presents a novel approach to analyzing the existing literature on MES, with the aim of guiding practical development of MES optimization. Through the discussion of six case studies, the authors provide a mathematical formulation as a reference for building the model and emphasize the impact of different aspects on the problem nature and solver selection. In addition, the paper also discusses the different approaches used in the literature for incorporating thermal networks and storage in the optimization of multi-energy systems.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xuepeng Yuan, Caiman Yan, Yunxian Huang, Yong Tang, Shiwei Zhang, Gong Chen
Summary: In this study, a multi-scale microgroove wick (MSMGW) was developed by laser irradiation, which demonstrated superior capillary performance. The surface morphology and performance of the wick were affected by laser scan pitch, laser power, repetition frequency, and scanning speed. The MSMGW showed optimal capillary performance in alumina material and DI water as the working fluid.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Maofei Mei, Feng Hu, Chong Han
Summary: This paper proposes an effective local search method based on detection of droplet boundaries for understanding the dynamic process of droplet growth during dropwise condensation. The method is validated by comparing with experimental data. The present simulation provides an effective approach to more accurately predict the nucleation site density in future studies.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rahul Kumar Sharma, Ashish Kumar, Dibakar Rakshit
Summary: The study explores the use of phase change materials (PCM) as a retrofit with Heating Ventilation and Air-conditioning systems (HVAC) to reduce energy consumption and improve air quality. By incorporating PCM with specific thickness and fin configurations, significant energy savings can be achieved in comparison to standard HVAC systems utilizing R134a. This research provides policymakers with energy-efficient and sustainable solutions for HVAC systems to combat climate change.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Zhenhua Ren, Xiangjin Meng, Xingang Qi, Hui Jin, Yunan Chen, Bin Chen, Liejin Guo
Summary: This paper investigates the heat transfer mechanism and factors influencing thermal radiation in the process of supercritical water gasification (SCWG) of coal, and proposes a comprehensive numerical model to simulate the process. Experimental validation results show that thermal radiation accounts for a significant proportion of the total heat exchange in the reactor and a large amount of radiant energy exists in the important spectral range of supercritical water. Enhancing radiative heat transfer can effectively increase the temperature of the reaction medium and the gasification rate.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Mauro Abela, Mauro Mameli, Sauro Filippeschi, Brent S. Taft
Summary: Pulsating Heat Pipes (PHP) are passive two-phase heat transfer devices with a simple structure and high heat transfer capabilities. The actual unpredictability of their dynamic behavior during startup and thermal crisis hinders their large-scale application. An experimental apparatus is designed to investigate these phenomena systematically. The results show that increasing the number of evaporator sections and condenser temperature improves the performance of PHP. The condenser temperature also affects the initial liquid phase distribution and startup time.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Ke Gan, Ruilian Li, Yi Zheng, Hui Xu, Ying Gao, Jiajie Qian, Ziming Wei, Bin Kong, Hong Zhang
Summary: A 3-dimensional enhanced heat pipe radiator has been developed to improve heat dissipation and temperature uniformity in cooling high-power electronic components. Experimental results show that the radiator has superior heat transfer performance compared to a conventional aluminum fin radiator under different heating powers and wind speed conditions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xinyi Zhang, Shuzhong Wang, Daihui Jiang, Zhiqiang Wu
Summary: This study focuses on recovering waste heat from blast furnace slag using dry centrifugal pelletizing technology. A comprehensive two-dimensional model was developed to analyze heat transfer dynamics and investigate factors influencing heat exchange efficiency. The findings have important implications for optimizing waste heat recovery and ensuring safe operations.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xincheng Wu, An Zou, Qiang Zhang, Zhaoguang Wang
Summary: The boosting heat generation rate of high-performance processors is challenging traditional cooling techniques. This study proposes a combined design of active jet intermittency and passive surface modification to enhance heat transfer.
APPLIED THERMAL ENGINEERING
(2024)
