Article
Thermodynamics
Juan Hou, Haoran Li, Natasa Nord
Summary: The goal of this study was to improve the energy and economic performance of space heating systems by using a model-based predictive controller. The results showed that the proposed controller achieved significant reductions in heat use, peak load, heating cost, and indoor temperature violation compared to the conventional rule-based control approach. The controller also maintained high performance even in lightweight building constructions with decreased thermal mass.
Article
Engineering, Civil
Giulia Pomaranzi, Luca Amerio, Paolo Schito, Giacomo Lamberti, Catherine Gorle, Alberto Zasso
Summary: A correct evaluation of wind loads on high-rise building cladding panels is crucial for safety and cost-effective design. This study examines the equivalence between moving-average filters and spatial averaging procedures, and suggests advanced post-processing techniques for accurate estimation of area-averaged pressures.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2022)
Article
Energy & Fuels
Alireza Riahi, Soheil Kavian, Hassan Jafari Mosleh, Mohammad Behshad Shafii
Summary: This study investigated the utilization of vapor-compression cooling system with different phase change materials (PCMs) to shift electricity consumption peak load, indicating that using PCM can reduce electricity consumption during peak load hours and increase accessible cooling load. Different PCMs have varying effects on peak load reduction, with SP224A at 150 L volume achieving the highest reduction in peak load.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Yongchun Liang, Xiaoguang Cheng, Yuyang Zhao
Summary: This paper investigates the transient temperature rise calculation of power cables under duct laying conditions and proposes a transient thermal circuit model to improve the speed and accuracy of the calculation. By decomposing the cable model into three parts, namely the cable, air inside the duct, and external environment, the thermal circuit model parameters are obtained through table lookup and fitting. Experimental results show that the decomposed cable model improves the accuracy of transient temperature rise calculation, and the relationship equation between the thermal circuit model parameters and laying conditions helps to improve the engineering adaptability of the method.
Article
Construction & Building Technology
Bo Chen, Weihua Cheng, Haoran Ma, Qingshan Yang
Summary: The wind tunnel tests revealed significant interference effects of high-rise buildings on the peak pressure coefficients of low-rise buildings, with amplification effects on minimum pressures near the high-rise building and maximum pressures away from it. Envelope peak pressure coefficients on the low-rise building increase with increasing height of the high-rise building. At small spacing ratios, amplification effects on envelope maximum peak pressure coefficients are observed in cases with large height ratios, and these effects increase with increasing height ratio or decreasing spacing ratio.
JOURNAL OF STRUCTURAL ENGINEERING
(2021)
Article
Environmental Sciences
Jing Li, Junqi Li, Zimu Li, Xiaojing Li, Shuai Si
Summary: Ground hardening in urban areas increases the risk of thermal enrichment in surface rainwater runoff. However, through low-impact development (LID) and renovation, the thermal load of surface runoff in urban areas can be significantly reduced, with ceramic granules as bioretention fillers showing remarkable results in decreasing thermal pollution and protecting the urban aquatic environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Energy & Fuels
Dawei Liang, Z. Q. Zhu, Bo Shao, Jianghua Feng, Shuying Guo, Yifeng Li, Anfeng Zhao
Summary: This paper proposes a hybrid analytical and lumped-parameter thermal model to estimate the spatial magnet temperature distributions of an interior permanent magnet synchronous machine. The model can help optimize motor design and thermal management strategies through accurate temperature predictions.
IEEE TRANSACTIONS ON ENERGY CONVERSION
(2022)
Article
Energy & Fuels
Alireza riahi, Hassan Jafari Mosleh, Soheil Kavian, Mohammad Behshad Shafii
Summary: A study on a vapor-compression cooling system utilizing phase change material (PCM) shows that PCM can increase accessible cooling load and decrease electricity consumption during peak load hours. By evaluating system dynamics, significant reductions in daily energy consumption and electricity peak load can be achieved with larger volumes of PCM, leading to greater peak shaving potential and economic benefits.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Thermodynamics
Haoran Li, Juan Hou, Tianzhen Hong, Natasa Nord
Summary: This study investigates the overall impacts of distribution temperature on heat-prosumer-based district heating (DH) systems and identifies the economic optimal distribution temperature. The results, based on a case study of a campus DH system, reveal significant differences in the economic optimal distribution temperature between the improved scenario and the 4th generation DH scenario's lowest distribution temperature.
Article
Engineering, Electrical & Electronic
Huan Li, Yunpeng Liu, Xinyu Zhuang, Hai Xiao, Xiaozhou Fan, Jiaxue Wang, Xinye Li, Taofei Jiang
Summary: This paper conducts temperature rise tests on a 110 kV transformer with distributed sensing fiber, comparing the accuracy of different thermal models. A modified-Susa model is proposed to reduce prediction error during the cooling process. Real-time tracking of hot spots and analysis of temperature gradient of windings are achieved. Results show satisfactory prediction accuracy during operation but noticeable error during cooling. The high-resolution Brillouin optical time-domain analysis sensing method provides refined temperature distribution and identifies periodic temperature fluctuations and local hot spots.
IEEE TRANSACTIONS ON POWER DELIVERY
(2023)
Article
Engineering, Electrical & Electronic
Huan Li, Yunpeng Liu, Xinyu Zhuang, Hai Xiao, Xiaozhou Fan, Jiaxue Wang, Xinye Li, Taofei Jiang
Summary: Transformer is crucial in grids and its internal hot-spot temperature is a critical monitoring parameter. This paper conducted three groups of temperature rise tests on a 110 kV transformer with built-in distributed sensing fiber at load rates of 70%, 100%, and 125%. By using distributed temperature sensing technology, the temperature distribution of the winding was obtained. The accuracy of different thermal models was compared, leading to the proposal of a modified-Susa model to reduce prediction errors during operation and cooling, and the implementation of real-time tracking and analysis of hot spots and overall temperature gradient of windings.
IEEE TRANSACTIONS ON POWER DELIVERY
(2023)
Article
Multidisciplinary Sciences
Lin Yang, Daihong Huh, Rui Ning, Vi Rapp, Yuqiang Zeng, Yunzhi Liu, Sucheol Ju, Yi Tao, Yue Jiang, Jihyun Beak, Juyoung Leem, Sumanjeet Kaur, Heon Lee, Xiaolin Zheng, Ravi S. Prasher
Summary: Silicon nanowires show potential in improving thermoelectric conversion efficiency at high temperatures. Researchers achieved high-performance thermoelectrics with improved ZT values by optimizing the synthesis method and enhancing the testing platform.
NATURE COMMUNICATIONS
(2021)
Article
Polymer Science
Qian Zhi, Yongbing Li, Peng Shu, Xinrong Tan, Caiwang Tan, Zhongxia Liu
Summary: This study investigates the relationship between loss modulus, welding time, and decomposition time of carbon-fiber-reinforced polyamide 66 composite. A double-pulse ultrasonic welding process is proposed and its performance is measured and evaluated. The experimental results show that the double-pulse ultrasonic welding can improve the welding strength and avoid material decomposition.
Article
Engineering, Chemical
Jun Qi, Hui-min Yan, Wen-wen Zhang, Xiu-ning Yao, Qing-yuan Cai, Kuo Xu, Wen-ping Xu, Guo-yuan Xiong
Summary: The effects of pH and arginine level on the stabilization of emulsions prepared by a novel thermal-assisted stirring method were evaluated. The results showed that thermal-assisted stirring was effective in manufacturing heat-insensitive emulsions. The emulsifying ability and zeta potential were significantly influenced by the pH level and arginine addition, with the maximum stability observed at pH 9 and 1.2% (w/v) arginine. The formation of heat-insensitive emulsions might be attributed to a high level of surface protein load, and increasing pH and arginine addition enhanced the stability of emulsions.
JOURNAL OF FOOD ENGINEERING
(2023)
Article
Thermodynamics
Ali Naghikhani, Seyed Mohammad Hassan Hosseini
Summary: This paper discusses the challenges of energy in today's world and the integrated exploitation or hybrid strategies proposed by energy hub. The linear model of the energy hub was designed and operated using the epsilon-constraint method and fuzzy weighted method, considering randomness and uncertainty.
Article
Thermodynamics
Baoshan Zhuang, Wenjun Deng, Yong Tang, Xinrui Ding, Kaihang Chen, Guisheng Zhong, Wei Yuan, Zongtao Li
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2019)
Article
Engineering, Industrial
Huilong Liu, Yong Tang, Longsheng Lu, Yingxi Xie, Wei Yuan, Gong Chen, Jie Li, Ting Fu
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2019)
Article
Engineering, Multidisciplinary
Huang ShiMin, Luo Jian, Yuan Wei, Zhao BoTe, Chen Yu, Tang Yong
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2019)
Article
Thermodynamics
Guoyun Fang, Wei Yuan, Zhiguo Yan, Yalong Sun, Yong Tang
APPLIED THERMAL ENGINEERING
(2019)
Article
Green & Sustainable Science & Technology
Shiwei Zhang, Jieling Chen, Yalong Sun, Jie Li, Jian Zeng, Wei Yuan, Yong Tang
Article
Energy & Fuels
Wei Yuan, Zhiqiang Qiu, Yao Huang, Chun Wang, Honglin Huang, Yang Yang, Xiaoqing Zhang, Jian Luo, Yong Tang
Article
Thermodynamics
Shiwei Zhang, Lang Lin, Gong Chen, Heng Tang, Jian Zeng, Wei Yuan, Yong Tang
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2019)
Article
Engineering, Manufacturing
Wei Yuan, Ziyi Zhuang, Biaowu Lu, Guoyun Fang, Wenjun Chen, Yong Tang
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY
(2019)
Article
Green & Sustainable Science & Technology
Guisheng Zhong, Yong Tang, Xinrui Ding, Longshi Rao, Gong Chen, Kairui Tang, Wei Yuan, Zongtao Li
Review
Energy & Fuels
Yang Yang, Wei Yuan, Xiaoqing Zhang, Yuhang Yuan, Chun Wang, Yintong Ye, Yao Huang, Zhiqiang Qiu, Yong Tang
Article
Engineering, Environmental
Wei Yuan, Zhiqiang Qiu, Chun Wang, Yuhang Yuan, Yang Yang, Xiaoqing Zhang, Yintong Ye, Yong Tang
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Chemistry, Physical
Xiaoqing Su, Wei Yuan, Biaowu Lu, Tianxiang Zheng, Yuzhi Ke, Ziyi Zhuang, Yonghao Zhao, Yong Tang, Shiwei Zhang
JOURNAL OF POWER SOURCES
(2020)
Article
Energy & Fuels
Biaowu Lu, Wei Yuan, Xiaoqing Su, Ziyi Zhuang, Yuzhi Ke, Yong Tang
Article
Chemistry, Multidisciplinary
Guoyun Fang, Yao Huang, Wei Yuan, Yang Yang, Yong Tang, Weida Ju, Fujian Chu, Zepeng Zhao
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)