Article
Engineering, Chemical
Flor R. Siperstein, Carlos Avendano, Jordan J. Ortiz, Alejandro Gil-Villegas
Summary: Analytic expressions for isosteric heats of adsorption are derived for commonly used isotherm models and a two-dimensional molecular equation of state based on the SAFT-VR approach. The predicted isosteric heat of adsorption exhibits strong variations in regions where experimental data is insufficient.
Article
Thermodynamics
I. Erro, P. Aranguren, P. Alegria, A. Rodriguez, D. Astrain
Summary: This study proposes a low-carbon and highly efficient heating technology using thermoelectric technology as a heat pump, and compares two different prototypes of thermoelectric heat pumps. The novel phase-change heat exchanger demonstrates superior thermal conductivity and energy efficiency. The experimental results validate the feasibility of this technology and propose a new method for calculating the heat supply.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2024)
Article
Thermodynamics
Bo Han, Anutosh Chakraborty
Summary: Metal organic frameworks (MOFs) are promising materials for achieving cooling, heating, and water desalination with zero or negligible carbon footprint. This article investigates the water adsorption and desorption characteristics of different functional group-assisted MOFs in the adsorption heat transformation (A-HT) process, and evaluates their performance in terms of cooling, heating, and desalination capacities.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Construction & Building Technology
Masoud Nasouri, Gholamreza Nabi Bidhendi, Mohammad Javad Amiri, Navid Delgarm, Saeed Delgarm, Khadijeh Azarbad
Summary: The study validated the performance of IX-SAHP in a humid continental climate zone and assessed and optimized the system using one-factor-at-a-time method and particle swarm optimization.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Thermodynamics
Henrik Pieper, Igor Krupenski, Wiebke Brix Markussen, Torben Ommen, Andres Siirde, Anna Volkova
Summary: A new COP approximation method based on linear relationships was proposed for heat pumps and chillers, showing a deviation of less than 1.5% compared to a thermodynamic model. The method was applied in a case study on the potential of district heating supplied by heat pumps in Tallinn, Estonia, showing promising results for hourly COP calculations under different conditions.
Article
Green & Sustainable Science & Technology
Mateo Jesper, Florian Schlosser, Felix Pag, Timothy Gordon Walmsley, Bastian Schmitt, Klaus Vajen
Summary: This study focuses on examining the performance of large-scale heat pumps and evaluating the capabilities of available heat pumps in the market. By developing models to accurately assess real-world performance, an economic and ecological evaluation method for heat pump projects can be established.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Engineering, Environmental
Rafay Ahmed, Guijian Liu, Balal Yousaf, Abdul Rehman, Mehr Ahmed Mujtaba Munir, Samina Irshad, Muhammad Saqib Rashid, Ayesha Imtiyaz Cheema
Summary: Nitrogen-doped carbonaceous adsorbents with high ultra-microporous structure were successfully synthesized in this study, showing the highest CO2 adsorption value at 700 degrees C due to the synergistic effect of nitrogen, high specific surface area, and micropore volume. The heterogeneous nature of the adsorbent, along with a strong interaction between the adsorbent and adsorbate, contributed to the high CO2 uptake efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Paloma M. Frias-Urena, Maximiliano Barcena-Soto, Eulogio Orozco-Guareno, Alberto Gutierrez-Becerra, Josue D. Mota-Morales, Karina Chavez, Victor Soto, Jose A. Rivera-Mayorga, Jose I. Escalante-Vazquez, Sergio Gomez-Salazar
Summary: The stoichiometry of hexacyanoferrate materials affects their porosity properties and CO2 capture applications. Varying amounts of Co ions and oxidation states of transition metals affect the structures of mesoporous K or Na-cobalt hexacyanoferrates (CoHCFs) and CO2 removal. The results demonstrate that CoHCFs have practical implications in CO2 capture and flue gas separations.
Article
Nanoscience & Nanotechnology
Pamela Ramirez-Vidal, Rafael L. S. Canevesi, Giuseppe Sdanghi, Sebastien Schaefer, Gael Maranzana, Alain Celzard, Vanessa Fierro
Summary: This study investigated hydrogen adsorption on six commercial activated carbons under different temperature and pressure conditions. The authors found that the use of nonlocal density functional theory provided a more accurate prediction of hydrogen adsorption capacity. The relationship between hydrogen adsorption capacity and surface properties of activated carbons was established, and different parameters were identified for evaluating the best activated carbon for hydrogen storage or compression.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Engineering, Environmental
Chong Yang Chuah, Hongju Lee, Tae-Hyun Bae
Summary: This review focuses on the recent progress of nanoporous adsorbents developed for light hydrocarbon separation, which is classified into acetylene separation, alkene/alkane separation, and propyne separation. Adsorptive separation is considered a promising technique with lower energy consumption than conventional processes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Masoud Nasouri, Gholamreza Nabi Bidhendi, Hassan Hoveidi, Mohammad Javad Amiri
Summary: The study focuses on designing and developing a simulation-based multi-criteria optimization (MCO) system for the IX-SAHP in Iran, aiming to maximize system performance and minimize power consumption through parameter analysis and particle swarm optimization.
Article
Chemistry, Physical
Shashwat Srivastava, Sachin P. Shet, S. Shanmuga Priya, K. Sudhakar, Muhammad Tahir
Summary: Metal organic frameworks (MOFs) are widely used in adsorption and separation due to their porous nature and high surface area. In this study, hydrogen adsorption in four copper MOFs was analyzed using molecular simulation. The results showed that PCN-60 exhibited high hydrogen uptake at both 298 K and 77 K.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Bo Han, Anutosh Chakraborty
Summary: This study focuses on using Grand Canonical Monte Carlo simulation to investigate the water adsorption behavior of functionalized MOFs. The simulation results were compared with experimental data, showing the accuracy of the simulation. The findings demonstrate the potential of GCMC simulation in designing and optimizing MOFs for heat transformation applications.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Applied
Davide Palamara, Paolo Bruzzaniti, Luigi Calabrese, Edoardo Proverbio
Summary: This study proposed a composite adsorbent coating on Al6061 aluminum substrate based on SAPO34 zeolite filler and S-PEEK matrix, and evaluated the effect of sulfonation degree on the mechanical and physical chemical properties of the coating. Results showed that using a relatively high sulfonation time of S-PEEK led to the best adhesive and cohesive properties, as well as high water vapor uptakes in the obtained coating.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Chemistry, Physical
Quang K. Loi, Krittamet Phothong, Ryuto Yuasa, Toshihide Horikawa, D. D. Do
Summary: The adsorption mechanism of ethanol on graphite was comprehensively investigated using experimental measurements and computer simulation. The study highlights the unique interplay of clustering and molecular layering of ethanol. Ethanol exhibits intermediate characteristics between simple gases and water during adsorption. The mechanism of ethanol adsorption involves the formation and growth of discrete clusters, predominantly in the form of tetramers and pentamers, followed by the coalescence of growing clusters. The interplay of clustering and coalescence depends on temperature.
Article
Thermodynamics
Pulak Sen, Sanjib Kalita, Dipak Sen, Ajoy Kumar Das, Bidyut Baran Saha
Summary: In this study, hydrophobic copper micro-structured surfaces were prepared through chemical etching and heat treatment, resulting in different micro-structural features. The experimental results showed that the prepared hydrophobic surfaces have a higher heat transfer coefficient, although the critical heat flux is slightly smaller compared to the bare copper surface. Additionally, the micro-porous surface prepared by a combination of two conventional processes significantly improves heat transfer.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Engineering, Environmental
Fayza Yulia, Agustino Zulys, Bidyut Baran Saha, Takuya Mabuchi, William Goncalves, Nasruddin
Summary: This study developed a low-cost CO2 adsorbent with a biometal-organic framework and optimized its CO2 adsorption capacity, selectivity, and heat of adsorption using a multiobjective genetic algorithm and artificial neural network.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Review
Energy & Fuels
Lia Putriyana, Yunus Daud, Bidyut Baran Saha, N. Nasruddin
Summary: This study provides comprehensive information on the utilization of low- and medium-temperature geothermal resources in Indonesia, highlighting the opportunities, challenges, and issues. It emphasizes the need for detailed studies and a change in perspective regarding the development of high-temperature prospects. The study also reveals the wide distribution of low- and medium-temperature fields and the under-utilization of their potential.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Article
Thermodynamics
Tahmid Hasan Rupam, M. L. Palash, Anutosh Chakraborty, Bidyut Baran Saha
Summary: This study explores the application of metal organic frameworks (MOFs) as adsorbent materials in adsorption-based heat transformation. Different MOFs were synthesized and their water adsorption was measured. The entropy generation and surface properties were studied to understand the relationship between surface energy and water adsorption. This information is crucial for designing efficient adsorption-based heat transformation applications.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Green & Sustainable Science & Technology
Israt Jahan, Md. Amirul Islam, Tahmid Hasan Rupam, Mujib L. Palash, Kaiser Ahmed Rocky, Bidyut Baran Saha
Summary: Adsorption-assisted energy conversion technologies are receiving extensive attention as a sustainable solution for meeting global energy demands. In this study, the water sorption properties of MOF-801 were enhanced by introducing nickel and cobalt into the framework. Two novel bimetallic MOFs, Ni-MOF-801 and Co-MOF-801, were successfully synthesized and showed improved porous and adsorption properties compared to pristine MOF-801. Co-MOF-801 demonstrated a 43% increase in specific cooling effect compared to the pristine MOF-801. These findings contribute significantly to the development of high-performance adsorption-based energy conversion systems.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Thermodynamics
Shahadat Hosan, Md Matiar Rahman, Shamal Chandra Karmaker, Andrew J. Chapman, Bidyut Baran Saha
Summary: This paper investigates the impact of remittances on multidimensional energy poverty in Bangladesh using a nationally representative Household Income and Expenditure Survey. The findings suggest that households with remittance income have a significantly lower level of energy poverty. The authors argue that increasing remittance inflow can contribute to alleviating energy poverty in Bangladesh and other developing nations, and therefore, national programs should be established to promote migrant workers, reduce household energy costs, and invest in modern energy technologies.
Article
Thermodynamics
Lei Ye, Md. Amirul Islam, Tahmid Hasan Rupam, Israt Jahan, Bidyut Baran Saha
Summary: HFOs are being used in adsorption refrigeration due to their low environmental impact. This study investigates the adsorption characteristics of HFO-1234ze(E) onto Maxsorb III using a CVVP system. Experimental data shows a maximum adsorption uptake of 1.73 kg center dot kg(-1) at 0.607 relative pressure. The adsorption isotherm data is correlated with T 'oth and D-A adsorption isotherm models, and the isosteric heats of adsorption are determined. The findings provide crucial insights for the performance assessment of practical adsorption refrigeration systems.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2023)
Article
Energy & Fuels
Ahmed A. Hassan, Hamdy Hassan, Md. Amirul Islam, Bidyut Baran Saha
Summary: This study presents a theoretical thermoeconomic performance assessment of a novel solar-powered high-temperature heat pump (HTHP)/adsorption cogeneration system. The system uses photovoltaic/thermal (PVT) solar collectors to capture solar thermal energy and generate electricity. The HTHP absorbs solar thermal energy and amplifies it to produce higher-temperature hot water for driving the adsorption chiller, resulting in improved cooling production. The best-performing configuration is the proposed PVT-HTHP system with a low-GWP refrigerant, which achieves an energy efficiency value of 46.8% and has a feasible payback period of 7.5 years.
Article
Chemistry, Physical
Ramy H. Mohammed, Tahmid Hasan Rupam, Roberto Nunez, Jeremy Spitzenberger, Shahab K. Mohammadian, Jaewon Lee, Bidyut Baran Saha, Hongbin Ma
Summary: This study synthesized and characterized four metal organic frameworks and found that MIL-100(Fe) had the highest water adsorption capacity, largest BET surface area, and pore volume, resulting in the highest specific daily water production for adsorption desalination.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Environmental Sciences
Md. Shafiqul Islam, Animesh Pal, Mohammad Shams Noor, Istiak Uddin Sazzad
Summary: This study collected data on non-ionizing radiation (NIR) emitted from base transceiver stations in Dhaka City and compared it to international standards and standards of other countries. The study found that the average electric field and electromagnetic field values exceeded the threshold values of certain countries, and approximately 35% of the calculated specific energy absorption rate values exceeded the recommended limit. The study suggests the need for detailed NIR exposure regulations and proper oversight and enforcement.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Thermodynamics
Tahmid Hasan Rupam, Farhana Jesmin Tuli, Israt Jahan, Mujib L. Palash, Anutosh Chakraborty, Bidyut Baran Saha
Summary: MOFs, a new type of porous coordination polymers, have attracted the interest of researchers worldwide. In this study, water adsorption isotherms onto three different MOFs were obtained and their performance in adsorption heat pumps was evaluated. Results showed that the studied MOFs exhibited excellent performance in water-based adsorption cooling systems.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Physics, Condensed Matter
Sampad Ghosh, Shamal Chandra Karmaker, Sivasankaran Harish, Bidyut Baran Saha
Summary: In this study, MoS2 thin films were produced by sulfurization of Mo films at different temperatures, and the effects of growth temperature on the structure and morphology of the films were investigated. The results showed that the growth temperature significantly affected the film thickness, surface roughness, and grain size.
MICRO AND NANOSTRUCTURES
(2022)
Article
Thermodynamics
Israt Jahan, Md. Amirul Islam, Tahmid Hasan Rupam, Mujib L. Palash, Bidyut Baran Saha
Summary: Metal-organic frameworks (MOFs) with high surface area and controllable chemical structure are porous crystalline materials that can be used for gas adsorption. In this study, a promising MOF material HKUST-1 was synthesized by hydrothermal method and doped with different metal ions. Experimental results showed that metal doping increased the surface area and pore volume of the material, and Co2+ and Mg2+ doping enhanced the water vapor adsorption.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Thermodynamics
Balaji Bakthavatchalam, Khairul Habib, Cecilia D. Wilfred, R. Saidur, Bidyut Baran Saha
Summary: This paper investigates the application of an ionic liquid in nanofluids and compares its stability and thermal properties with conventional surfactants. The results show that the inclusion of the ionic liquid improves the thermal conductivity and stability of the nanofluid. However, the electrostatic repulsive force of the ionic liquid decreases with increasing temperature. The nanofluid containing the ionic liquid demonstrates the most significant enhancement in thermal conductivity at 303 K and a maximum dispersion stability of over one month.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(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)
