Article
Thermodynamics
Rafael Perez-Alvarez, Pedro Angel Gonzalez-Gomez, Domingo Santana, Antonio Acosta-Iborra
Summary: This study explores the issue of preheating receiver tubes using different high-temperature heat transfer fluids (HTF) in solar power tower (SPT) plants. The results indicate that although the modified preheating algorithm meets certain requirements, using chloride salt as a high-temperature HTF instead of nitrate salt reduces the lifespan of the power plant and delays its start-up time.
APPLIED THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Yan Luo, Gen Li, Tao Lu, Ruixing Wang
Summary: This study investigates the impact of incident heat flux distribution and SPT site weather data on the thermal stress, fatigue life, and allowable flux density of the molten salt receiver in a solar power tower system. The results show that the heat flux distribution and weather conditions significantly affect the fatigue damage of the receiver tube.
INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES
(2022)
Article
Thermodynamics
Yuhang Zuo, Yawei Li, Hao Zhou
Summary: In this paper, the finite volume method and two-dimensional thermoelastic method were used to study the preheating process of the receiver tube in windy conditions. The experimental results verified the numerical model. The influence of different factors such as heat flux, wind speed, wind direction, ambient temperature, and heat flux distribution on the preheating process was investigated. The results also revealed the influence of salt filling temperature and salt filling mass flow on salt circulating.
Article
Chemistry, Multidisciplinary
Yan Luo, Gen Li, Zhiyuan Wang, Tao Lu
Summary: This paper investigates the temperature and thermal stress of a solar power tower molten salt receiver under multi-source uncertainties. The results demonstrate the severe dispersions of temperature and thermal stress, which may cause failure in the receiver. Additionally, the global sensitivity analysis reveals the most sensitive and least sensitive factors.
APPLIED SCIENCES-BASEL
(2022)
Article
Energy & Fuels
Nicolas Calvet, Alexander H. Slocum, Antoni Gil, Benjamin Grange, Radia Lahlou, Tyler T. Hamer, Miguel Diago, Melanie Tetreault-Friend, Daniel S. Codd, David L. Trumper, Peter R. Armstrong
Summary: Concentrating solar power (CSP) technology with molten-salt central receiver plants offers high thermodynamic efficiencies and maturity, making it a preferred option for meeting energy demands. Advancements in solar energy storage and generation technologies have led to improvements in thermal efficiency and cost-effectiveness.
Article
Energy & Fuels
Qiang Zhang, Kaijun Jiang, Zhihua Ge, Lijun Yang, Xiaoze Du
Summary: The molten salt solar power tower station can effectively compensate for the instability of solar energy, and operating control strategies are crucial for its peak-regulating mode. Research shows that the temperature control of the receiver and water level control of the power cycle system have good robustness under different operating conditions, stabilizing the system's performance.
Article
Thermodynamics
Gang Xiao, Jichuan Zeng, Jing Nie
Summary: A new practical method for evaluating the thermal efficiency of solar molten salt receivers has been proposed and validated with experimental data. By mining operating parameters under different irradiance conditions and considering the effects of the heliostat field, test time, and ambient conditions, the method successfully achieved an improvement in thermal efficiency.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Cristina Prieto, F. Javier Ruiz-Cabanas, Virginia Madina, A. Ines Fernandez, Luisa F. Cabeza
Summary: This study evaluated the corrosion compatibility of two super-alloys with molten nitrate salts at 565 degrees C, finding that alloy 625 has lower corrosion rates compared to alloy 800H.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Charles-Alexis Asselineau, John Pye, Joe Coventry
Summary: This study demonstrates that replacing existing nitrate salt receivers with sodium receivers can significantly increase the energy output of CSP systems. Sodium receivers have higher peak flux and lower optical errors, which can reduce the cost of CSP by half.
Article
Green & Sustainable Science & Technology
Yawei Li, Hao Zhou, Yuhang Zuo, Mingrui Zhang
Summary: In this study, a lab-scale receiver was used to investigate the preheating process in a Concentrated Solar Power (CSP) plant, and a transient numerical model was developed for verification. It was found that there is a non-linear relationship between the period of the preheating process and the different xenon lamp power, and the dynamical preheating process was achieved using negative feedback control. Additionally, the effect of environmental temperature on the preheating duration of the receiver was also examined, showing a prolongation of about 30 seconds at an environment temperature of -2 degrees C.
Article
Energy & Fuels
Shen Du, Ming-Jia Li, Ya-Ling He, Sheng Shen
Summary: A porous volumetric solar receiver using molten salt as the heat transfer fluid shows higher thermal efficiency compared to traditional air receivers, with a 9.6% improvement at an outlet temperature of 1000 K. The molten salt receiver has a large heat storage capacity and efficient convective heat transfer, requiring a smaller mass flow rate and resulting in significantly smaller pressure drop. Additional research on this type of receiver is outlined for experimental verification and application with high temperature molten salt.
Article
Energy & Fuels
Matthias Binder, Christian Schuhbauer, Ralf Uhlig, Peter Schwarzbozl, Ruth Schwaiger, Robert Pitz-Paal
Summary: Solar power tower plants have the potential to provide renewable energy, but reducing investment and operating costs is crucial. This study introduces a new approach to compare different safety concepts in terms of permissible strains and stresses, and also suggests using cost-effective stainless steels instead of expensive nickel-based alloys for receiver design optimization.
Article
Energy & Fuels
Giancarlo Gentile, Giovanni Picotti, Marco Binotti, Michael E. Cholette, Giampaolo Manzolini
Summary: This paper proposes a methodology for the dynamic thermal analysis of solar tower external receivers and compares three materials for enhanced energy solutions. The study evaluates the fatigue and creep damage of receiver panels under real weather conditions, showing that creep has a greater impact on the lifetime of the receivers than fatigue.
Article
Thermodynamics
Wen-Qi Wang, Ming-Jia Li, Rui Jiang, Ze-Dong Cheng, Ya-Ling He
Summary: The influences of temperature variation inside molten salts on the performance of solar receivers were compared using computational fluid dynamics (CFD) method and lumped parameter method (LPM). The results showed that the rise time of outlet temperature predicted by CFD model was more than two times that of LPM model. Therefore, considering the temperature distribution within molten salt is important for predicting the transient thermal performance of receivers.
Article
Energy & Fuels
Farooq Ahmed, Lyu Guanghua, Farah Akram, Fida Hussain, Syed Hadi Hussain Shah, Arsalan Muhammad Soomar, Salah Kamel
Summary: Molten salts are commonly used for heat storage in solar thermal power plants, but solidifying them can cause operational interruptions and suboptimal energy output. A self-adaptive heat extraction method using a controller has been proposed to regulate the temperature of salt pipelines, allowing continuous operations and reducing unplanned shutdowns.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Thermodynamics
Yu Wang, Ya-Ling He, Yin-Shi Li, Ze-Dong Cheng
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2016)
Article
Energy & Fuels
Ze-Dong Cheng, Xue-Ru Zhao, Ya-Ling He
Article
Green & Sustainable Science & Technology
Ze-Dong Cheng, Xue-Ru Zhao, Ya-Ling He, Yu Qiu
Article
Thermodynamics
Ze-Dong Cheng, Jing-Jing Men, Xue-Ru Zhao, Ya-Ling He, Yu-Bing Tao
ENERGY CONVERSION AND MANAGEMENT
(2019)
Article
Energy & Fuels
Ze-Dong Cheng, Jing-Jing Men, Shi-Cheng Liu, Ya-Ling He
Article
Energy & Fuels
Ze-Dong Cheng, Ya-Kun Leng, Jing-Jing Men, Ya-Ling He
Article
Green & Sustainable Science & Technology
Ze-Dong Cheng, Jing-Jing Men, Ya-Ling He, Yu -Bing Tao, Zhao Ma
Article
Energy & Fuels
Wen-Qi Wang, Yu Qiu, Ming-Jia Li, Ya-Ling He, Ze-Dong Cheng
Article
Energy & Fuels
Jing-Jing Men, Xue-Ru Zhao, Ze-Dong Cheng, Ya-Kun Leng, Ya-Ling He
Summary: This paper presents an efficient method for optimizing the optical performance of linear Fresnel reflector concentrators by combining multi-objective genetic algorithm and Monte Carlo ray-tracing method with an effective objective function. The optimization model has successfully optimized the optical performance of LFRCs and identified the best parameter combinations through empirical validation.
Article
Thermodynamics
Wen-Qi Wang, Ming-Jia Li, Ze-Dong Cheng, Dong Li, Zhan-Bin Liu
Summary: A coupled optical-thermal-stress numerical model based on the three-dimensional structure of the molten salt receiver is constructed to analyze its characteristics and propose a hybrid aiming strategy for the heliostat field.
Article
Mathematical & Computational Biology
Bo Yang, Min He, Xinhua Chen, Mengmeng Sun, Ting Pan, Xiaohong Xu, Xuesong Zhang, Qing Gong, Ye Zhao, Ziqi Jin, Zedong Cheng
Summary: Acupuncture has been shown to be an effective alternative treatment for Alzheimer's disease (AD), improving learning and memory abilities in mice. It regulates protein levels and cytokines, as well as influencing gut microbiota.
COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE
(2022)
Article
Thermodynamics
Wen-Qi Wang, Ming-Jia Li, Rui Jiang, Ze-Dong Cheng, Ya-Ling He
Summary: The influences of temperature variation inside molten salts on the performance of solar receivers were compared using computational fluid dynamics (CFD) method and lumped parameter method (LPM). The results showed that the rise time of outlet temperature predicted by CFD model was more than two times that of LPM model. Therefore, considering the temperature distribution within molten salt is important for predicting the transient thermal performance of receivers.
Article
Chemistry, Multidisciplinary
Na Li, Shenghan Zhang, Zedong Cheng, Wenfei Wu
Summary: The study prepared a new low-temperature NH3-SCR catalyst using Baiyun Ebo rare earth concentrate as a carrier, and found that the co-loading of Fe and Mn can greatly enhance the catalytic performance, achieving a denitrification rate of up to 94.8%. Results from XRD, SEM, BET analyses indicated that the increased acidic sites and oxygen species on the catalyst surface facilitated oxygen migration, contributing to the high catalytic activity achieved.
Article
Integrative & Complementary Medicine
Yuping Shen, Ze-Dong Cheng, Yi-Guo Chen, Rui Sun, Xian-De Ma, Guo-liang Hou, Rui Wang
EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE
(2020)
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)