Article
Thermodynamics
Meng Wang, Wei Wang, Lifeng Wu
Summary: Scientific prediction of regional energy is of practical significance for rational control of energy supply. In this paper, the grey relational analysis and the FGM(1,1) model are used to analyze the samples, and a new grey multi-variable AGMC(1,N) model is used to study 13 provinces (cities) in 7 different regions of China. The results show that energy consumption in Central China will decrease in the short term, while it will continue to rise in the other regions.
Article
Thermodynamics
Amjad Ali Pasha, Nazrul Islam, Wasim Jamshed, Mohammad Irfan Alam, Abdul Gani Abdul Jameel, Khalid A. Juhany, Radi Alsulami
Summary: This study investigates the flow and heat transfer properties of a hybrid nanofluid on a slippery surface. The results show that the hybrid nanofluid has better heat transfer performance compared to regular nanofluids. Factors such as the shape and volume fraction of nanoparticles significantly affect the flow velocity, temperature, and entropy.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Review
Thermodynamics
Bingbing Qiu, Xuedong Tao, Jiahao Wang, Ya Liu, Sitong Li, Huaqiang Chu
Summary: Considering the pressures of energy and the environment, utilizing biomass as a renewable resource to obtain hydrocarbon fuels and high-value chemicals shows important application value and broad market prospects. However, improving the quality of bio-oil is crucial due to the challenges posed by the complex pyrolysis process of biomass, low calorific value, high oxygen content, and strong acidity.Various techniques such as direct catalytic pyrolysis, fast pyrolysis, and catalytic upgrading have been explored to prepare bio-oil and high value chemicals from biomass, each with its own achievements and challenges. Additionally, the catalytic characteristics of catalysts and their specific applications in catalytic pyrolysis, catalytic cracking, and catalytic hydrogenation are systematically summarized to provide new directions for lignocellulose biomass energy utilization research.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Wenqing Li, Yuanbo Qiao, Xiao Li, Yutao Wang
Summary: This paper examines the relationship between the environment and the economy in 89 Belt and Road Initiative countries and tests the Environmental Kuznets Curve hypothesis and the pollution haven hypothesis. The results show an inverse U-shaped relationship between environmental degradation and economic growth. Foreign direct investment generally has a positive impact on environmental quality, but region-specific results vary.
Article
Thermodynamics
M. Dinesh Kumar, C. S. K. Raju, Kiran Sajjan, Essam R. El-Zahar, Nehad Ali Shah
Summary: Hybrid modeling is important in various systems and has been used to describe the mixture of liquids. This study investigates the effects of different factors on three-dimensional flow characteristics and thermal radiation situations. The results show variations in temperature distribution, conductivity, and skin friction coefficient among the three mixing compositions.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Wei-Feng Xia, Shafiq Ahmad, Muhammad Naveed Khan, Hijaz Ahmad, Aysha Rehman, Jamel Baili, Tuan Nguyen Gia
Summary: This study focuses on the flow behavior of hybrid nanofluids under special conditions, providing a theoretical basis for the application of these fluids. The results show that the wall thickness parameter and Hartmann number have an impact on fluid velocity, while higher values of phi(2) can enhance heat and mass transfer.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Anoosh Dini, Alireza Hassankashi, Sasan Pirouzi, Matti Lehtonen, Behdad Arandian, Ali Asghar Baziar
Summary: This study presents a novel optimization model for the flexible-reliable operation of energy hubs in electricity, natural gas, and district heating networks, utilizing energy storage systems and incentive-based demand response program. The optimization scheme minimizes the total expected costs of operation, reliability, and flexibility of the energy networks, while considering uncertainties of load, energy cost, power generation of RES, and network equipment availability through scenario-based stochastic programming. A hybrid teaching-learning-based optimization and crow search algorithm is used to obtain a reliable optimal solution with low standard deviation.
Article
Thermodynamics
Izzet Karakurt, Gokhan Aydin
Summary: This study proposes regression models to forecast fossil fuel-related carbon dioxide emissions in the BRICS and MINT countries. Important variables affecting emissions are determined and future trends are discussed. The results show the significance of these countries in the global economy and the need for emission control measures.
Article
Thermodynamics
Syed Modassir Hussain, Wasim Jamshed, Amjad Ali Pasha, Mohammad Adil, Mohammad Akram
Summary: This study explores the thermal and flow characteristics of Williamson nanofluids (WNF) using various factors such as magnetohydrodynamics, porous medium, viscous dissipation, thermal radiative, Joule heating, Brownian, thermophoresis diffusion, and convective boundary constraints. The research reveals that heat conductivity in Williamson phenomena gradually increases and the aluminum alloy-engine oil nanofluid exhibits better heat conductance compared to the titanium alloy-engine oil nanofluid. The results also show the influences of thermal radiation, Joule heating, and viscous dissipation on the heating phenomena, as well as the relationship between various variables including heat, frictional force, Nusselt number, and entropy generation.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Hossein Ali Fakher, Zahoor Ahmed, Alex O. Acheampong, Solomon Prince Nathaniel
Summary: This study evaluates the impact of energy consumption on environmental sustainability and verifies the existence of the Environmental Kuznets Curve. The findings reveal that non-renewable energy aggravates environmental deterioration, while renewable energy helps improve environmental quality. Additionally, population density, financial development, and trade share also contribute to environmental deterioration.
Article
Thermodynamics
Zhijian Liu, Guangyao Fan, Dekang Sun, Di Wu, Jiacheng Guo, Shicong Zhang, Xinyan Yang, Xianping Lin, Lei Ai
Summary: A novel distributed energy system (DES) is proposed to create a nearly zero-energy community, and its design, optimization, and operation strategies are improved to enhance system performance. The results show that the new DES can significantly reduce carbon emissions and net interaction compared to the reference system, and the potential of achieving zero-energy is evaluated.
Article
Thermodynamics
Bahram Jalili, Narges Aghaee, Payam Jalili, Davood Domiri Ganji
Summary: This study investigates the convection heat transfer in a countercurrent double-tube heat exchanger with various fins, comparing the performance with simple and rectangular-finned geometries. The results show that the water-aluminum oxide nanofluid has a better convection heat transfer coefficient than water-titanium dioxide and pure water. Heat exchangers with rectangular and curved fins have significantly better efficiency than the heat exchanger without a fin.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Caiqing Zhang, Panyu Chen
Summary: The research shows that the overall energy efficiency of RCEP is low, with China and Japan having relatively high energy efficiency while developing countries have lower energy efficiency. Optimizing industrial structure and energy consumption, improving merchandise trade and government efficiency can enhance energy efficiency, while the development of the tourism industry unexpectedly reduces energy efficiency.
Article
Thermodynamics
Ehsan Elahi, Zhixin Zhang, Zainab Khalid, Haiyun Xu
Summary: This study estimated target values of energy inputs for poultry farms in Pakistan and evaluated strategies for energy and cost savings. The results revealed inefficient use of energy inputs at poultry farms, emphasizing the need for optimization and conservation measures.
Article
Thermodynamics
Sulaman Muhammad, Yanchun Pan, Mujtaba Hassan Agha, Muhammad Umar, Siyuan Chen
Summary: This article examines the nonlinear relationship between industrial structure, energy intensity, and environmental efficiency in developed and developing countries. The results indicate that the environmental efficiency of Belt and Road Initiative countries has declined over the years. Developed countries have higher average environmental efficiency compared to developing countries, and the negative impact of the secondary industry on the environment is more severe in developing countries. Additionally, a nonlinear U-shaped curve is observed between the secondary industry and environmental efficiency in developed countries.
Article
Thermodynamics
Manish Ram, Juan Carlos Osorio-Aravena, Arman Aghahosseini, Dmitrii Bogdanov, Christian Breyer
Summary: Driven by climate mitigation goals, countries are prioritizing low-cost renewables to achieve 100% renewable energy by 2050, which will have positive impacts on future stability and growth of economies worldwide.
Article
Thermodynamics
M. G. Rasul, M. A. Hazrat, M. A. Sattar, M. I. Jahirul, M. J. Shearer
Summary: This paper discusses the challenges and development directions of future hydrogen applications, including hydrogen production costs, storage systems, and infrastructure development. The study finds that green hydrogen production and metal hydride storage systems have great market potential. To achieve sustainable development goals, integrated planning, cost reduction, and accelerated infrastructure development are needed.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Chien-Chiang Lee, Wenwu Xing, Chi-Chuan Lee
Summary: This study reveals an inverted U-shape impact of energy security on income inequality, with energy security improving income distribution as economic development progresses. Additionally, income inequality has a persistence effect, impacting future income inequality.
Article
Thermodynamics
Kan Kan, Qingying Zhang, Zhe Xu, Yuan Zheng, Qiang Gao, Lian Shen
Summary: The study found that tip leakage flow (TLF) and the associated tip leakage vortex (TLV) can affect the performance of PAT, decreasing hydraulic efficiency, increasing flow rate, and affecting shaft power output. The effect of TLF on the pressure distribution along the blade depends on flow conditions, while the form of TLV is influenced by the flow incidence angle.
Article
Thermodynamics
K. Sarada, Fehmi Gamaoun, Amal Abdulrahman, S. O. Paramesh, Raman Kumar, G. D. Prasanna, R. J. Punith Gowda
Summary: This article investigates the convective boundary layer flow of ternary hybrid nanofluid (water-based graphene-CNT-Silver) over a curved stretching sheet with activation energy, considering the non-Fourier heat flux model. The results reveal the influence of various parameters on thermal, concentration, and velocity profiles. The heat transport in ternary hybrid nanoliquid increases with higher thermophoresis and Brownian motion parameters, while the Biot number positively affects the thermal profile and the Schmidt number and Stefan blowing parameter values reduce mass transport.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
