Article
Thermodynamics
H. Harish, K. Manjunath
Summary: This research compares the flow and heat transfer properties of water with circular protruded twisted-tape inserts to those with traditional twisted tapes. The study found that circular protruded twisted-tape inserts provide higher thermal enhancement and lower friction factor.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Toygun Dagdevir, Mahmut Uyanik, Veysel Ozceyhan
Summary: Experimental investigation on heat transfer enhancement using various twisted tape inserted tube configurations under turbulent flow conditions. Results show that DTTEs have better heat transfer performance compared to PTTEs, while PTTEs have less friction loss.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Article
Thermodynamics
Aziz Hakan Altun, Soner Ors, Sercan Dogan
Summary: In this study, the turbulence effects created by twisted wavy tape elements inside a plain tube were investigated experimentally. The changes in heat transfer and pressure drop due to turbulence generation by the tape elements were examined, and the experimental system was validated. The highest performance factor was obtained at a Reynolds number of 5000 for the lowest amplitude and highest wavenumber of the twisted wavy tape elements. The twisted wavy tape elements showed a performance enhancement of around 42% compared to the twisted tape element.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Energy & Fuels
Boonsong Samutpraphut, Smith Eiamsa-ard, Varesa Chuwattanakul, Chinaruk Thianpong, Naoki Maruyama, Masafumi Hirota
Summary: This article explores the use of sawtooth twisted tapes to enhance heat transfer rate by generating swirling flow and interrupted flowing disturbance. The effects of sawtooth angles on heat transfer rate, friction factor, and aerothermal performance index are analyzed. The results show that the sawtooth twisted tape improves heat transfer rate and introduces varying levels of pressure loss based on the sawtooth angles. The recommended sawtooth twisted tape outperforms the typical twisted tape and plain tube in terms of Nusselt number.
Article
Thermodynamics
M. Pimsarn, P. Samruaisin, C. Thianpong, K. Ruengpayungsak, P. Eiamsa-ard, S. Chamoli, S. Eiamsa-ard
Summary: This study optimized the aerothermal performance of a tube with inclined circular-rings (ICRs) and twisted-tapes (TTs), and found that the heat transfer and friction factor increase with the number of twisted tapes and decrease with twist ratio. The heat transfer of ICRs together with TTs is significantly higher than in a plain tube and other configurations, achieving a maximal eta of 1.66.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Kim Leong Liaw, Jundika C. Kurnia, Agus P. Sasmito
Summary: This study investigated the effect of inserting twisted tape into a helical tube on turbulent heat transfer, finding that the insertion of twisted tape increases the intensity of secondary flow in the radial direction, resulting in higher heat transfer performance. The results also showed that for all cases, higher inlet Reynolds numbers lead to a proportional increase in heat transfer, while the friction coefficient decreases with decreasing decrement amounts.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Nidal H. Abu-Hamdeh, Khalid H. Almitani, Abdullatif A. Gari, Ashkan Alimoradi, Ali Ahmadian, Dumitru Baleanu
Summary: This study investigates the hydrodynamic analysis of a heat exchanger filled with thermal oil-based SWCNT nanofluid and crosscut twisted tapes. It was found that the use of twisted tapes had a significant impact on the thermal and hydraulic characteristics of the heat exchanger, leading to improved heat transfer coefficient and increased pressure drop. The optimization using a simple model proved more efficient than a crosscut model, and the turbulators were effective and positive in terms of thermal-hydraulic viewpoint.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Jyoti Prakash Panda, Bipin Kumar, Manoj Kumar, Anil Kumar Patil
Summary: This study investigates the impact of the length and twist ratio of twisted tape inserts on heat transfer performance in heat exchangers. The results show that the maximum heat transfer and thermo-hydraulic performance are achieved at a length ratio of 0.75 and a twist ratio of 1.5.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Energy & Fuels
Rishabh Agarwal, Rajesh Maithani, Sachin Sharma, Anil Kumar, Ajay Kumar
Summary: This study optimized the parameters of twisted tape insert in a heat exchanger tube with SiO2/H2O based nanofluid flow. The goal was to maximize heat transfer while minimizing pressure drop. The optimized parameter values for a specific range of Reynolds number were found to be W-T/D-T of 0.8, L-T/W-T of 1.74, phi of 1.25 vol.%, and Re of 17,000.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Thermodynamics
Li Shijie, Qian Zuoqin, Wang Qiang
Summary: This numerical investigation explores the heat transfer optimization effect of circular tube heat exchanger with L-shaped twisted tape insert and finds the optimal parameter design. The effects of twist pitch, inner diameter, tape width, and number of tape on thermohydraulic performance were studied. Response surface method was used to analyze the relationship between the Nusselt number and these parameters. The results show that the tube fitted with L-shaped twisted tape insert has a significant increase in Nu and friction factor compared to the smooth tube.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
V. Chuwattanakul, K. Wongcharee, P. Ketain, S. Chamoli, C. Thianpong, S. Eiamsa-ard
Summary: An experimental investigation on the aerothermal performance of a heat exchanger tube equipped with newly designed broken V-ribbed twisted tapes (B-VRT) was conducted. The results showed that the B-VRT provided enhanced heat transfer due to increased mixing caused by longitudinal vortices from the ribs and swirling flow from the twisted tapes. The B-VRT with forward facing ribs at an attack angle alpha of 45 degrees exhibited the best performance.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Pongjet Promvonge, Sompol Skullong
Summary: The article experimentally studied the improved thermal-hydraulic performance in a constant heat-fluxed tube inserted with V-winglet-attached twin counter-twisted tapes. Results showed that the V-winglet-attached twin counter-twisted tapes considerably increased friction loss and Nusselt number, indicating good thermal-hydraulic performance.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
A. Sivalingam, T. Balusamy, S. Suseel Jai Krishnan, P. K. Nagarajan
Summary: The reuse of decomposed leaves from trees to synthesize nanoparticles for nanofluids shows promise in enhancing the convective performance. Neem-assisted zinc oxide nanoparticles demonstrate good thermal transport behavior and fluid stability, resulting in higher performance evaluation factor in convective experiments.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Energy & Fuels
Hakan Bucak, Fuat Yilmaz
Summary: The study examined the thermal-hydraulic performance of twisted tapes with teardrop-shaped dimple-protrusion patterned walls, finding that certain designs had higher Nusselt number and thermal performance factor within specific Reynolds number ranges.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Energy & Fuels
Prashant Kumar, R. M. Sarviya
Summary: This paper focuses on enhancing heat transfer and thermal performance factor of tubular heat exchanger by using a novel Perforated Rectangular Cut Twisted Tape (PRCTT) and compares it with other types of twisted tapes. The analysis includes different aspects such as Nusselt number, friction factor, and perforation ratio. The results show significant enhancements in Nusselt number and thermal performance when using the PRCTT, especially in the turbulent zone. The perforation of the tape further decreases the friction factor and improves the overall thermal performance factor.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Food Science & Technology
Rosalina Iribe-Salazar, Jose Caro-Corrales, Oscar Hernandez-Calderon, Jorge Zazueta-Niebla, Roberto Gutierrez-Dorado, Marco Carrazco-Escalante, Yessica Vazquez-Lopez
JOURNAL OF FOOD SCIENCE
(2015)
Article
Thermodynamics
Erika Y. Rios-Iribe, Maritza E. Cervantes-Gaxiola, Eusiel Rubio-Castro, Oscar M. Hernandez-Calderon
APPLIED THERMAL ENGINEERING
(2016)
Article
Computer Science, Interdisciplinary Applications
Eusiel Rubio-Castro, Jose Maria Ponce-Ortega, Maritza Elizabeth Cervantes-Gaxiola, Oscar Martin Hernandez-Calderon, Jesus Raul Ortiz-del-Castillo, Jorge Milan-Carrillo, Jose Francisco Hernandez-Martinez, Jose Antonio Meza-Contreras
COMPUTERS & CHEMICAL ENGINEERING
(2016)
Article
Engineering, Chemical
Oscar Martin Hernandez-Calderon, Jose Maria Ponce-Ortega, Jesus Raul Ortiz-del-Castillo, Maritza E. Cervantes-Gaxiola, Jorge Milan-Carrillo, Medardo Serna-Gonzalez, Eusiel Rubio-Castro
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2016)
Article
Environmental Sciences
Sergio Perez-Sicairos, Krisnar Alejandro Corrales-Lopez, Oscar Martin Hernandez-Calderon, Moises Israel Salazar-Gastelum, Rosa Maria Felix-Navarro
REVISTA INTERNACIONAL DE CONTAMINACION AMBIENTAL
(2016)
Article
Biotechnology & Applied Microbiology
Erika Y. Rios-Iribe, Oscar M. Hernandez-Calderon, Eleazar M. Escamilla-Silva
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2016)
Article
Engineering, Chemical
Oscar M. Hernandez-Calderon, Marcos D. Gonzalez-Llanes, Erika Y. Rios-Iribe, Sergio A. Jimenez-Lam, Ma. del Carmen Chavez-Parga, Eleazar M. Escamilla-Silva
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2017)
Article
Food Science & Technology
Rosalina Iribe-Salazar, Roberto Gutierrez-Dorado, Erika Rios-Iribe, Marco Carrazco-Escalante, Yessica Vazquez-Lopez, Oscar Hernandez-Calderon, Jose Caro-Corrales
JOURNAL OF FOOD SCIENCE
(2018)
Article
Biotechnology & Applied Microbiology
Erika Y. Rios-Iribe, Oscar M. Hernandez-Calderon, C. Reyes-Moreno, I. Contreras-Andrade, Luis B. Flores-Cotera, Eleazar M. Escamilla-Silva
BIOTECHNOLOGY PROGRESS
(2013)
Article
Computer Science, Interdisciplinary Applications
Oscar M. Hernandez-Calderon, Eusiel Rubio-Castro, Erika Y. Rios-Lribe
COMPUTERS & CHEMICAL ENGINEERING
(2014)
Article
Chemistry, Multidisciplinary
Jesus M. Nunez-Lopez, Oscar M. Hernandez-Calderon, Jose M. Ponce-Ortega, Maritza E. Cervantes-Gaxiola, Eusiel Rubio-Castro
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Engineering, Chemical
Marco Carrazco-Escalante, Jose Caro-Corrales, Rosalina Iribe-Salazar, Erika Rios-Iribe, Yessica Vazquez-Lopez, Roberto Gutierrez-Dorado, Oscar Hernandez-Calderon
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Thermodynamics
Jesus R. Ortiz-del-Castillo, Oscar M. Hernandez-Calderon, Erika Y. Rios-Iribe, Marcos D. Gonzalez-Llanes, Eusiel Rubio-Castro, Maritza E. Cervantes-Gaxiola
INTERNATIONAL JOURNAL OF REFRIGERATION
(2020)
Article
Engineering, Chemical
Marcos D. Gonzalez-Llanes, Oscar M. Hernandez-Calderon, Erika Y. Rios-Iribe, Cristian Alarid-Garcia, Agustin J. Castro Montoya, Eleazar M. Escamilla-Silva
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2018)
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)
