Review
Thermodynamics
V. S. Devahdhanush, Issam Mudawar
Summary: Jet impingement boiling is a thermal management technique with critical heat flux (CHF) as an important safety parameter. This article provides a systematic review of studies in the field of jet impingement CHF, including experimental jet CHF studies, parametric effects, and techniques for increasing CHF.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
V. S. Devahdhanush, Issam Mudawar
Summary: This study experimentally investigates key parameters influencing CHF for confined round single jets and jet arrays impinging normally onto square heated surfaces. The comprehensive R-134a CHF database reveals strategies to augment CHF and mechanisms behind CHF enhancement, as well as the transient processes. Additionally, statistical techniques are used to formulate a new correlation for CHF with good prediction accuracy across various conditions and geometries.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Gangtao Liang, Han Yang, Jiajun Wang, Shengqiang Shen
Summary: This study assesses the pool boiling critical heat flux (CHF) of nanofluids, demonstrating that the maximum CHF ratio of nanofluid to base fluid can reach 4 and 4.6 for different orientations of heaters. The type of heater (wire or block) has a significant impact on CHF, with direct electric-heating wire heaters accelerating nanoparticle deposition. Pressure and nanoparticle size affect CHF, but dispersion level of particles in base fluid plays a more crucial role in determining CHF ratio.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Xinyu Ji, Xiang Ma, Xiaoping Yang, Jinjia Wei, Bengt Sunden
Summary: Through experimental study, it was found that nucleate boiling can be suppressed and forced convection heat transfer can be enhanced by increasing the jet velocity. On the micro-pin-finned surface, the heat transfer is greatly intensified due to the increase in surface area and the number of nucleation sites.
APPLIED THERMAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Shakerur Ridwan, Jordan Pollack, Matthew McCarthy
Summary: This study characterizes the impact of adding SiO2 particles to engineered surfaces for boiling enhancement, showing moderate improvement in critical heat flux but deterioration in heat transfer coefficient due to particle clogging. Various surfaces exhibited unique degradation mechanisms, with some showing size-dependent degradation of HTC and others showing degradation independent of particle size.
Article
Thermodynamics
Stephen Adeoye, Yoav Peles
Summary: Flow boiling of carbon dioxide with a micro impinging jet was experimentally studied. The effects of heat flux, radial position, mass flux, and pressure on the heat transfer coefficient were investigated. Results showed an increase in the heat transfer coefficient with heat flux, mass flux, and pressure up until the critical heat flux condition. In contrast, the heat transfer coefficient declined with radial position characterized by a pronounced influence of the jet hydrodynamics.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Yunfeng Cui, Jinyang Xu, Kejing Zhan, Fulong Cui, Fangjun Hong
Summary: In the study of jet array impingement boiling, it was found that nucleate boiling mainly occurs nearby wall jet collision zones, and initially formed bubbles have relatively larger size while offspring bubbles have relatively smaller size and will collapse on the heating wall. The periodical bubble growth and collapse causes high frequency pressure oscillation, with frequencies related to bubble nucleation rates and showing a somewhat increasing trend with the heating frequency.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Surendra D. Barewar, Sandesh S. Chougule
Summary: An experimental study was conducted to analyze the heat transfer characteristics of impinging a hybrid nanofluid jet on a heated test surface. The results showed a significant improvement in heat transfer coefficient and boiling performance of the Ag/ZnO hybrid nanofluid under certain conditions.
EXPERIMENTAL HEAT TRANSFER
(2021)
Article
Mechanics
S. Mukherjee, P. C. Mishra, P. Chaudhuri, N. Ali, S. A. Ebrahim
Summary: An experimental study was conducted to investigate the thermal performance of water/titania nanofluid under nucleate pool boiling. The results showed an increase in heat transfer coefficient as heat flux and weight concentration increased, but the enhancement decreased at higher weight concentrations. New correlations with high prediction accuracies were proposed to relate wall superheat temperature with heat flux and heat transfer coefficient.
Article
Thermodynamics
Zufen Luo, Xiande Fang, Chong Li, Xiaohuan Li
Summary: Saturated flow boiling CHF experiments were conducted to investigate the influence of hypergravity on the working fluid R245fa refrigerant flowing inside a horizontal copper tube. The results show that as the inlet vapor quality decreases, CHF increases and outlet vapor quality at CHF decreases. However, for low mass flux and normal gravity, the increase in CHF weakens with decreasing inlet vapor quality, and the deviation between CHF and the corresponding limiting heat flux increases. Increasing gravity level increases saturated CHF and corresponding outlet vapor quality, thus narrowing the deviation. For high mass flux, CHFs under different gravity levels are almost the same and increase linearly with decreasing inlet vapor quality, gradually deviating from the qlim line.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Nur Syahirah M. Hanafi, Wan Aizon W. Ghopa, Rozli Zulkifli, Shahrir Abdullah, Zambri Harun, Mohd Radzi Abu Mansor
Summary: This paper investigates the heat transfer performance of different nanofluid coolants with the employment of a single nozzle, axisymmetric, and confined jet impingement method. The results show that hybrid nanofluid exhibits the highest heat transfer performance.
Article
Energy & Fuels
Nur Syahirah M. Hanafi, Wan Aizon W. Ghopa, Rozli Zulkifli, Mohd Anas Mohd Sabri, Wan Fathul Hakim W. Zamri, Meor Iqram Meor Ahmad
Summary: Liquid coolant is commonly used to lower the temperature of an object. By introducing metal nanoparticles into a base fluid such as water, the heat transfer performance of the coolant can be increased. Hybrid nanofluids, which mix two types of metal nanoparticles with high thermal conductivity, have been developed to further enhance the heat transfer performance. In this study, a numerical analysis was conducted to investigate the effects of different types of coolants on heat transfer performance. The results showed that hybrid nanofluids had the highest heat transfer performance compared to pure water and single particle nanofluids. A mathematical formulation was also developed to describe the correlation between Reynolds number and volume concentration on the average heat transfer coefficient.
Article
Thermodynamics
Sanjay Kumar Gupta, Rahul Dev Misra
Summary: This study investigates the impact of microchannel geometry on heat transmission efficiency using Cu@ZnO hybrid nanofluid to develop micro/nanoporous coatings. The results show that higher nanofluid concentration and specific microchannel configuration can significantly enhance boiling heat transfer.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Thermodynamics
Yanpei Huang, Jianyin Miao, Zitian Niu, Jingquan Zhao, Qi Wu, Zhendong Fu, Qi Yang
Summary: In this study, ammonia is used in confined jet impingement boiling experiments to achieve efficient heat dissipation. A hybrid-structured surface is designed to enhance heat transfer, with a triangular prism-convex structure in the stagnation zone and a microchannel structure in the wall jet zone. The results show that the hybrid-structured surface can effectively cool down the heating surface with a hotspot heat flux of 1367 W/cm2. The effects of jet velocity, heat flux, saturation temperature, and inlet condition are also investigated, and it is found that increasing jet velocity and saturation temperature can improve the heat transfer in the central stagnation zone. Moreover, the pressure drop is influenced by jet velocity and inlet vapor quality, while it shows no significant dependence on heat flux and saturation temperature.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Mayowa I. Omisanya, Zhihao Chen, Yoshio Utaka
Summary: Flow boiling heat transfer was studied using a different-mode-interacting boiling (DMIB) method to enhance critical heat flux (CHF) and heat transfer coefficient (HTC). The nonuniform surfaces were found to significantly improve CHF under certain conditions, showing the potential for enhanced performance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Sourav Mitra, Seung Taek Oh, Bidyut Baran Saha, Pradip Dutta, Kandadai Srinivasan
HEAT TRANSFER RESEARCH
(2015)
Article
Thermodynamics
Sourav Mitra, Pramod Kumar, Kandadai Srinivasan, Pradip Dutta
INTERNATIONAL JOURNAL OF REFRIGERATION
(2015)
Article
Thermodynamics
Manoj K. Singh, Darvik Yadav, Sankalp Arpit, Sourav Mitra, Sandip K. Saha
APPLIED THERMAL ENGINEERING
(2016)
Article
Thermodynamics
Sourav Mitra, N. Aswin, Pradip Dutta
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2016)
Article
Thermodynamics
Sourav Mitra, Pramod Kumar, Kandadai Srinivasan, Pradip Dutta
INTERNATIONAL JOURNAL OF REFRIGERATION
(2016)
Article
Engineering, Multidisciplinary
Sourav Mitra, Pramod Kumar, Kandadai Srinivasan, Pradip Dutta
Article
Energy & Fuels
Ankush Kumar Jaiswal, Sourav Mitra, Pradip Dutta, Kandadai Srinivasan, S. Srinivasa Murthy
Article
Thermodynamics
Sourav Mitra, Kandadai Srinivasan, Pramod Kumar, Pradip Dutta
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS
(2016)
Article
Thermodynamics
Animesh Pal, Kyaw Thu, Sourav Mitra, Ibrahim I. El-Sharkawy, Bidyut Baran Saha, Hyun-Sig Kil, Seong-Ho Yoon, Jin Miyawaki
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2017)
Article
Thermodynamics
Sourav Mitra, Pramod Kumar, Kandadai Srinivasan, Pradip Dutta
APPLIED THERMAL ENGINEERING
(2014)
Article
Engineering, Environmental
Animesh Pal, Maisara Shahrom Raja Shahrom, Muhammad Moniruzzaman, Cecilia Devi Wilfred, Sourav Mitra, Kyaw Thu, Bidyut Baran Saha
CHEMICAL ENGINEERING JOURNAL
(2017)
Article
Thermodynamics
Animesh Pal, Hyun-Sig Kil, Sourav Mitra, Kyaw Thu, Bidyut Baran Saha, Seong-Ho Yoon, Jin Miyawaki, Takahiko Miyazaki, Shigeru Koyama
APPLIED THERMAL ENGINEERING
(2017)
Article
Thermodynamics
Sourav Mitra, Kyaw Thu, Bidyut Baran Saha, Kandadai Srinivasan, Pradip Dutta
APPLIED THERMAL ENGINEERING
(2017)
Proceedings Paper
Energy & Fuels
S. Mitra, K. Srinivasan, P. Kumar, S. S. Murthy, P. Dutta
PROCEEDINGS OF THE SOLARPACES 2013 INTERNATIONAL CONFERENCE
(2014)
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)