-
Tailoring microwave frequencies for high-efficiency hydrogen production from biomass Energy (IF 9.0) Pub Date : 2024-04-16 Jia Wang, Mengyuan Wen, Jurong Ren, Xinru La, Xianzhi Meng, Xiangzhou Yuan, Arthur J. Ragauskas, Jianchun Jiang
-
Research on compression process and compressors in supercritical carbon dioxide power cycle systems: A review Energy (IF 9.0) Pub Date : 2024-04-16 Yunxia Liu, Yuanyang Zhao, Qichao Yang, Guangbin Liu, Liansheng Li
The utilization of supercritical carbon dioxide (sCO) in the Brayton cycle presents several advantages, such as compact equipment, high efficiency, and rapid response time. The sCO power cycle can be applied in coal-fired power, solar thermal power, and nuclear power systems. Over the past 10 years, many scholars have researched sCO power systems. The compression (pressurization) process is a core
-
Optimization of thermal management system architecture in hydrogen engine employing improved genetic algorithm Energy (IF 9.0) Pub Date : 2024-04-16 Jie Wen, Chenxi Wan, Guoqiang Xu, Laihe Zhuang, Bensi Dong, Junjie Chen
Decarbonization in the aeronautical industry is a daunting challenge due to the lack of sustainable aviation fuel. Hydrogen offers a potential option for this problem, given that it is an energy-dense fuel capable of reducing climate impact. Along with it, the liquid hydrogen preheating and thermal protection bring inevitable safety issues. Currently, how to construct the optimal thermal management
-
Biochar and Fe2+ mediation in hydrogen production by water electrolysis: Effects of physicochemical properties of biochars Energy (IF 9.0) Pub Date : 2024-04-16 Bo Hu, Lianfei Xu, Yang Li, Fei Sun, Zhuozhi Wang, Mengchi Yang, Yangyang Zhang, Wenwen Kong, Boxiong Shen, Xin Wang, Jiancheng Yang
-
Development of helium turbine loss model based on knowledge transfer with neural network and its application on aerodynamic design Energy (IF 9.0) Pub Date : 2024-04-15 Changxing Liu, Zhengping Zou, Pengcheng Xu, Yifan Wang
Helium turbines are widely used in the Closed Brayton Cycle for power generation and aerospace applications. The primary concerns of designing highly loaded helium turbines include choosing between conventional and contra-rotating designs and the guidelines for selecting design parameters. A loss model serving as an evaluation means is the key to addressing this issue. Because of the property disparities
-
A novel in-situ sensor calibration method for building thermal systems based on virtual samples and autoencoder Energy (IF 9.0) Pub Date : 2024-04-15 Zhe Sun, Qiwei Yao, Huaqiang Jin, Yingjie Xu, Wei Hang, Hongyu Chen, Kang Li, Ling Shi, Jiangping Gu, Qinjian Zhang, Xi Shen
Sensor networks are playing an increasingly important role in modern buildings. With the growing size of building sensor networks and the increasing use of low-cost sensors, the accuracy and reliability of these sensor networks face challenges. Therefore, in-situ calibration of sensor networks is crucial to maintain data quality. Various state-of-the-art methods typically require meeting stringent
-
Battery state of health estimation across electrochemistry and working conditions based on domain adaptation Energy (IF 9.0) Pub Date : 2024-04-15 Chenghao Liu, Zhongwei Deng, Xiaohong Zhang, Huanhuan Bao, Duanqian Cheng
Accurately assessing the health status of lithium-ion batteries is essential to ensure their safe and efficient application in electric vehicles and energy storage systems. Although various methods have been proposed to achieve battery state of health (SOH) estimation, most of them are only applicable to certain battery types or operating conditions. To address this issue, a novel method is proposed
-
Parametric analysis and multi-objective optimization of a membrane distillation liquid desiccant regenerator with heat/moisture recovery and potable water production Energy (IF 9.0) Pub Date : 2024-04-14 Yu Gao, Lin Lu
The regenerator plays a crucial role in determining the energy efficiency of green liquid desiccant air-conditioning systems. This paper presents a novel air gap membrane distillation regenerator featuring heat recovery and portable water production. Based on a validated numerical model, performance evaluation of the regenerator combined with an external heat exchanger is conducted in terms of regeneration
-
Performance comparison of a direct heat pump using R1234yf and indirect heat pumps using R1234yf and R290 designed for cabin heating of electric vehicles Energy (IF 9.0) Pub Date : 2024-04-14 Soonbum Kwon, Dongchan Lee, Jun Yeob Chung, Heegyu Maeng, Yongchan Kim
When using R290 as an alternative to R1234yf for heat pump (HP) cabin heating systems, indirect system (IDS) should be employed to address safety issues owing to its high flammability. However, studies comparing the performance of a direct system (DS) using R1234yf and an IDS using R290 are limited. In this study, the performance characteristics of DS-HP, IDS-HP, and IDS-HP were compared to verify
-
Research on station-network planning of electricity-thermal -cooling regional integrated energy system considering multiple-load clusters and network costs Energy (IF 9.0) Pub Date : 2024-04-14 Yuze Ma, Xu Han, Ting Zhang, Ang Li, Zhicheng Song, Tao Li, Yongli Wang
A reasonable regional integrated energy system (RIES) structure is the key to achieving its economic and efficient operation. However, in actual engineering construction, only the maximum load is considered as a prerequisite for energy design, which leads to waste of energy allocation. In view of this, this article proposes an electricity-thermal-cooling RIES energy stations and networks planning model
-
Influence of surfactant adsorption on coal oxidation and wettability: Experimental discussion and model development Energy (IF 9.0) Pub Date : 2024-04-13 Shiju Wang, Shulei Shi, Bingyou Jiang, Yuannan Zheng, Chang-Fei Yu, Yi Zhang, Xiao-Han Wang
To further investigate the physicochemical properties and wettability changes of surfactant-modified coal after oxidation, the contact angle, industrial composition, and functional groups of the surfactant-modified coal were measured. The experimental data were analyzed using a ridge regression prediction model to explore the relationship between the physicochemical properties and the wettability.
-
Understanding CO2 adsorption in layered double oxides synthesized by slag through kinetic and modelling techniques Energy (IF 9.0) Pub Date : 2024-04-13 Wenjun Duan, Jiachen Han, Shuo Yang, Zhimei Wang, Qingbo Yu, Yaquan Zhan
-
Experimental and computational thermoelectric generator for waste heat recovery for aeronautic application Energy (IF 9.0) Pub Date : 2024-04-13 Qusay Doraghi, Alina Żabnieńska-Góra, Gabriele Voto, Beate Krause, Petra Pötschke, Ignacio Ezpeleta, Cintia Mateo-Mateo, Hussam Jouhara
This study is a comprehensive exploration of a polymer nanocomposite-based Thermoelectric Generator (TEG) developed within the European project InComEss, specifically designed for aeronautical applications. The focus lies on evaluating the TEG's performance under thermal conditions representative of various aircraft flight stages. The TEG module, consisting of four sections with 17 p-n strips each
-
Aging abnormality detection of lithium-ion batteries combining feature engineering and deep learning Energy (IF 9.0) Pub Date : 2024-04-13 Jingcai Du, Caiping Zhang, Shuowei Li, Linjing Zhang, Weige Zhang
-
Transportation infrastructure and carbon emissions: New evidence with spatial spillover and endogeneity Energy (IF 9.0) Pub Date : 2024-04-13 Luojia Wang, Kerui Du, Shuai Shao
Over the past two decades, China’s transportation infrastructure has expanded and emerged as a vital pillar of the national economy. In the context of commitments to carbon neutrality, it is imperative to assess how developing transportation infrastructure affects overall environmental goals. However, to the best of our knowledge, existing literature offers conflicting evidence about the overall impact
-
Prediction model for three-dimensional surface subsidence of salt cavern storage with different shapes Energy (IF 9.0) Pub Date : 2024-04-13 Cheng Lyu, Hangyu Dai, Chao Ma, Ping Zhou, Chengxing Zhao, Deng Xu, Liangquan Zhang, Chao Liang
Previous prediction models have faced challenges in characterizing the three-dimensional (3D) surface subsidence of salt caverns with different shapes. In order to overcome these limitations, this study proposes a novel theoretical model based on stochastic medium theory. This model provides a theoretical formula for characterizing the 3D surface subsidence of salt caverns with different shapes (oblate
-
Scenario-based multi-criteria evaluation of sector coupling-based technology pathways for decarbonization with varying degrees of disruption Energy (IF 9.0) Pub Date : 2024-04-13 Jonas Beckmann, Kai Klöckner, Peter Letmathe
-
Predictive capability of an improved AD/RANS method for multiple wind turbines and wind farm wakes Energy (IF 9.0) Pub Date : 2024-04-13 Linlin Tian, Yilei Song, Zhenming Wang, Ning Zhao, Chunling Zhu, Xiyun Lu
The actuator disc (AD) model combined with the Reynolds-averaged Navier-Stokes (RANS) model has been demonstrated as the most effective approach for simulating wind farm wakes due to its computational efficiency and acceptable accuracy. However, challenges remain in defining the reference inflow wind speed for the AD model and identifying a robust turbulence model for the RANS method. To solve these
-
Inner-particle reaction mechanism of cellulose, hemicellulose and lignin during photo-thermal pyrolysis process: Evolution characteristics of free radicals Energy (IF 9.0) Pub Date : 2024-04-13 Gongxiang Song, Dexin Huang, Qiangqiang Ren, Song Hu, Jun Xu, Kai Xu, Long Jiang, Yi Wang, Sheng Su, Jun Xiang
-
Energy storage, thermal-hydraulic, and thermodynamic characteristics of a latent thermal energy storage system with 180-degree bifurcated fractal fins Energy (IF 9.0) Pub Date : 2024-04-13 Yuxiang Hong, Zihao Cheng, Qing Li, Juan Du
The low thermal conductivity of organic phase change materials limits the performance of latent thermal energy storage (TES) systems. Inspired by fractal theory, this study proposes an innovative 180° fractal fin for enhancing the thermal performance of latent TES systems. The effects of length ratios () and fractal levels () are numerically investigated employing the enthalpy-porosity method. Compared
-
Spectrally selective design and energy-saving demonstration of a novel liquid-filled window in hot and humid region Energy (IF 9.0) Pub Date : 2024-04-13 Jihong Pu, Miao Han, Lin Lu, Chao Shen, Fang Wang
Spectrally selective window provides a positive solution for the sustainable development of buildings in hot regions. In this study, a novel filuis-based spectrally selective design was proposed to achieve the light/heat decoupling of windows. In detail, the cooper ions and chlorophyll were blended in the aqueous solution to efficiently block the near-infrared () and ultraviolet () energy, whilst maintaining
-
Effect of coal permeability evolution on CO2 storage capacity under phase partial pressure in ScCO2-ECBM processes Energy (IF 9.0) Pub Date : 2024-04-12 Zhengdong Liu, Ze Hu, Wancheng Zhu, Tingting Zhao, Shuyuan Liu, Zhiguo Guo, Chen Sun, Gang Bai
In the technology of Supercritical Carbon Dioxide Enhanced Coalbed Methane (ScCO-ECBM), permeability evolution is a critical factor influencing the widespread application of this technique. Existing theoretical studies primarily focus on factors like pressure, but the influence of phase pressures on permeability evolution remains underexplored due to the coexistence of multiple fluids in coal. The
-
Enhancing cold storage efficiency: Sustainable apple pre-cooling utilizing polyethylene glycol and waste coconut oil as phase change materials for chilled energy recovery from air-conditioning condensate Energy (IF 9.0) Pub Date : 2024-04-12 Palanisamy Dhamodharan, A.K. Bakthavatsalam, V.P. Nijin, Rajendran Prabakaran, Sung Chul Kim
Thermal energy systems can be upgraded by integrating them into thermal energy storage systems. Furthermore, reliability can be increased by using locally available waste materials. In this study, waste coconut oil (WCO) from a nearby bake shop and polyethylene glycol (PEG) were used as phase change materials (PCMs) in thermal energy storage systems for pre-cooling apples in cold-storage plants. Field
-
Early remaining-useful-life prediction applying discrete wavelet transform combined with improved semi-empirical model for high-fidelity in battery energy storage system Energy (IF 9.0) Pub Date : 2024-04-12 Jaewon Kim, Seunghwa Sin, Jonghoon Kim
The recycling of lithium-ion batteries (LIBs) from electric vehicles (EVs) for augmenting the capacity of battery energy storage systems (BESS) presents a sustainable approach to leverage investment in LIBs, mitigating economic losses. This study highlights the critical role of accurate capacity estimation and remaining-useful-life (RUL) prediction in determining optimal replacement and augmentation
-
Dynamic aggregation strategy for a virtual power plant to improve flexible regulation ability Energy (IF 9.0) Pub Date : 2024-04-12 Xin Liu, Yang Li, Li Wang, Junbo Tang, Haifeng Qiu, Alberto Berizzi, Ilea Valentin, Ciwei Gao
-
The volatility of global energy uncertainty: Renewable alternatives Energy (IF 9.0) Pub Date : 2024-04-12 Cem Işık, Bekhzod Kuziboev, Serdar Ongan, Olimjon Saidmamatov, Mokhirakhon Mirkhoshimova, Alibek Rajabov
Fluctuations in energy markets affect all economic activities by affecting energy prices and investment decisions. This study is the first attempt to investigate the energy-related uncertainty (volatility) in the world using the newly developed energy-related uncertainty index (EUI). The ARCH (autoregressive conditional heteroskedasticity) and GARCH (generalized autoregressive conditional heteroskedasticity)
-
Assessment of booster refrigeration system with eco-friendly working fluid CO2/halogenated alkene (HA) mixture for supermarket application around the world: Energy conservation, cost saving, and emissions reduction potential Energy (IF 9.0) Pub Date : 2024-04-12 Baomin Dai, Tianhao Wu, Shengchun Liu, Peng Zhang, Jianing Zhang, Rao Fu, Dabiao Wang
-
The effects of different equivalence ratios and initial pressures on the explosion of methane/air premixed gas in closed space Energy (IF 9.0) Pub Date : 2024-04-12 Ke Yang, Guangyu Liu, Hong Ji, Zhixiang Xing, Juncheng Jiang, Yixuan Yin
Methane/air is a widely used fuel. The effects of equivalent ratio (0.8–1.2) and initial pressure (1.0 atm–1.2 atm) on the flame propagation process and explosion overpressure of methane/air premixed gas were studied using a high-speed camera and pressure sensor in a rectangular closed container. Four flame modes in the late propagation stage are distinguished according to the different modes of secondary
-
Study on the effects of acetone and R141b on the performance of micro heat pipe PV/T systems Energy (IF 9.0) Pub Date : 2024-04-12 Jinping Li, Hongyang Wang, Xiaomin Liu, Junjie Zhu, Vojislav Novakovic, Ehsan Gholamian Karkon
Photovoltaic/thermal (PV/T) system could convert solar energy to high-grade electrical and thermal energy, which has significant application value in various aspects such as energy, environment, lifestyle, and economy. The new-developed micro heat pipe PV/T(MHP-PV/T) has excellent potential for combined heat and power generation in cold regions. To elevate the combined thermoelectric performance of
-
A technology-driven way to carbon peak and its impact mechanism Energy (IF 9.0) Pub Date : 2024-04-12 Junbing Huang, Yajun Wang, Hongyan Lei, Xiang Chen
Based on Green Slow model, this paper builds a framework to achieve carbon peak driven by manufacturing, energy-conservation and energy substitution technology concurrently.Through a panel dataset from 2000 to 2018 at the province level, we find that the increasing carbon emissions effects from manufacturing technology are primarily due to increased levels of disposable income resulting from technological
-
Optimal 4E evaluation of an innovative solar-wind cogeneration system for sustainable power and fresh water production based on integration of microbial desalination cell, humidification- dehumidification, and reverse osmosis desalination Energy (IF 9.0) Pub Date : 2024-04-11 Mohammad Hasan Khoshgoftar Manesh, Sepehr Davadgaran, Seyed Alireza Mousavi Rabeti, Ana M. Blanco-Marigorta
-
Feature-based energy consumption quantitation strategy for complex additive manufacturing parts Energy (IF 9.0) Pub Date : 2024-04-11 Mengdi Gao, Lei Li, Qingyang Wang, Conghu Liu, Xinyu Li, Zhifeng Liu
Additive manufacturing (AM) has significant advantages, including design freedom, mass customization, and complex-structure manufacturing capabilities. As reducing the manufacturing energy is challenging in terms of the industrial sustainability, the AM energy consumption must be further explored. Existing energy consumption quantitation methods for AM require complex models that considering the energy
-
Egg-tray-inspired concave foam structure on pore-scale space radiation regulation for enhancing photo-thermal-chemical synergistic conversion Energy (IF 9.0) Pub Date : 2024-04-11 Xuhang Shi, Chunzhe Li, Zhenning Yang, Jie Xu, Jintao Song, Fuqiang Wang, Yong Shuai, Wenjing Zhang
Solar-to-fuel is an approach of converting concentrated solar high-temperature heat radiation to high-value chemical fuel, providing sustainable means for large-scale solar energy storage. However, the inefficient space radiation regulation and unclear photo-thermal-chemical multiphysics synergy limit solar to fuel conversion. To effectively improve photo-thermal-chemical conversion, here, we propose
-
Research on day-ahead optimal dispatching of virtual power plants considering the coordinated operation of diverse flexible loads and new energy Energy (IF 9.0) Pub Date : 2024-04-11 Zeyuan Dong, Zhao Zhang, Minghui Huang, Shaorong Yang, Jun Zhu, Meng Zhang, Dongjiu Chen
Large-scale new energy access to the power grid poses significant challenges to its stable operation. Differentiated user-side power consumption patterns further widen peak-valley differences in power demand. This paper focuses on operation scheduling problems of virtual power plants with coordinated optimization of diverse flexible loads and new energy, through efficient aggregation and optimization
-
Renewable fuel production and the impact of hydrogen infrastructure — A case study of the Nordics Energy (IF 9.0) Pub Date : 2024-04-11 Mathias Berg Rosendal, Marie Münster, Rasmus Bramstoft
-
The energy-saving effect of early-stage autonomous vehicles: A case study and recommendations in a metropolitan area Energy (IF 9.0) Pub Date : 2024-04-10 Huizhao Tu, Liying Zhao, Ran Tu, Hao Li
This paper presents the energy-saving potential of early-stage autonomous vehicles (AVs) by analyzing empirical AV driving records from a public road test. Vehicle-specific power-based microscopic energy consumption models are used to estimate the energy efficiency of the tested AVs, including light-duty vehicles and heavy-duty trucks. Overall, AVs do not necessarily save energy, largely depending
-
Evaluation of renewable energy projects based on sustainability goals using a hybrid pythagorean fuzzy-based decision approach Energy (IF 9.0) Pub Date : 2024-04-10 Seyyed Jalaladdin Hosseini Dehshiri, Maghsoud Amiri, Ali Mostafaeipour, Ttu Le
Due to the growth in energy demand and the need to pay attention to sustainable development, many developing countries face the challenge of making policies for growing sustainable energy. With attention to industrial expansion and population growth, Iran, a developing country, is confronting an energy shortage problem. Despite the appropriate capacity of renewable resources in Iran, due to the lack
-
Synthesis of coal slime-based catalytic material for peroxymonosulfate activation through molten salt thermal treatment Energy (IF 9.0) Pub Date : 2024-04-10 Chunquan Li, Xinlin Wang, Kefu Ma, Jiayu Liu, Fang Yuan, Qizhou Wang, Zhiming Sun
-
An integrated machine learning and metaheuristic approach for advanced packed bed latent heat storage system design and optimization Energy (IF 9.0) Pub Date : 2024-04-10 Argyrios Anagnostopoulos, Theofilos Xenitopoulos, Yulong Ding, Panos Seferlis
To tackle the challenge of waste heat recovery in the industrial sector, this research presents a novel design and optimization framework for Packed Bed Latent Heat Storage Systems (PBLHS). This features a Deep Learning (DL) model, integrated with metaheuristic algorithms. The DL model was developed to predict PBLHS performance, trained using data generated from a validated Computational Fluid Dynamics
-
Research on the influence mechanism of internal flow characteristics on energy conversion in radial energy recovery turbines under multiple conditions Energy (IF 9.0) Pub Date : 2024-04-10 Bing Qi, Xiaobang Bai, Yibin Li, Xiaohui Wang, Xiaoze Zhang, Desheng Zhang
The development of Energy Recovery Turbine (ERT) is of great significance for energy saving and emission reduction. The mutual influence mechanism between the flow characteristics and energy conversion of ERT has not yet been mastered. A radial ERT was selected as the research object and a mathematical model based on entropy generation theory was established to evaluate the energy loss of the ERT.
-
Insights into the thermal and electric field distribution and the structural optimization in the graphitization furnace Energy (IF 9.0) Pub Date : 2024-04-09 Tongle Shang, Hao Zhan, Qinfei Gong, Tao Zeng, Pengcheng Li, Zhiyong Zeng
-
Comparison of the performance enhancement of vacuum ejector by means of structure optimization and bypass methods Energy (IF 9.0) Pub Date : 2024-04-09 Leilei Niu, Xiaobing Zhang
The ejector can create a vacuum environment without electricity and produce no pollutants, making it widely used in various fields. However, during the working process, a large amount of high-pressure air needs to be continuously supplied to maintain the vacuum level. Given the current energy shortages, it is essential to enhance the entrainment capacity and reduce the energy requirements of the vacuum
-
Assessing the impact of prefabricated buildings on urban green total factor energy efficiency Energy (IF 9.0) Pub Date : 2024-04-09 Shiyan Wang, Chengjiang Li, Wei Zhang, Jingyu Sui, Michael Negnevitsky
-
Techno-economic assessment of hybrid renewable energy system with multi energy storage system using HOMER Energy (IF 9.0) Pub Date : 2024-04-09 Subhash Yadav, Pradeep Kumar, Ashwani Kumar
Energy storage systems (ESS) address the uncertainty of renewable energy sources (RES) in renewable energy based isolated microgrids. One type of ESS is unable to provide 100 % supply reliability. Moreover, there are either excess energy or reliability issues due to a lack of energy management techniques. Therefore, this paper proposes hybrid RES (HRES) with multiple-ESS (MESS), including battery and
-
Renewable energy and carbon-neutral gaming: A holistic approach to sustainable electricity Energy (IF 9.0) Pub Date : 2024-04-09 Chien-Chiang Lee, Jafar Hussain, Xian Mu
Carbon emissions are a global issue around the world due to energy consumption, and to resolve this, increasing focus has been placed on attaining carbon neutrality. This research bridges the gap in related literature by considering perspectives on electricity. We develop a regression model from renewable energy consumption and production and apply game theory to get different decisions on electricity
-
Spatial-temporal characteristics analysis of solar irradiance forecast errors in Europe and North America Energy (IF 9.0) Pub Date : 2024-04-09 Mingliang Bai, Peng Yao, Haiyu Dong, Zuliang Fang, Weixin Jin, Xusheng Yang, Jinfu Liu, Daren Yu
-
Effect of heating rate on the secondary reaction in low-rank coals pyrolysis with the real-time evolution analysis of in-situ tar Energy (IF 9.0) Pub Date : 2024-04-09 Yao Zhu, Qinhui Wang, Jiqing Yan, Jianmeng Cen, Mengxiang Fang
-
Study on the decompression behavior during large-scale pipeline puncture releases of CO2 with various N2 compositions: Experiments and mechanism analysis Energy (IF 9.0) Pub Date : 2024-04-09 Shuai Yu, Xingqing Yan, Yifan He, Lei Chen, Yanwei Hu, Kai Yang, Zhangao Cao, Jianliang Yu, Shaoyun Chen
Impurities in the captured CO stream from various industrial sources may introduce uncertainty into the transient releases of transportation pipelines. Due to limitations in the experimental scale, there is currently limited analysis of the vertical cross-sectional temperature distribution and the pressure response along the pipeline during the releases of impure CO. The mechanism by which impurities
-
An advanced framework for net electricity consumption prediction: Incorporating novel machine learning models and optimization algorithms Energy (IF 9.0) Pub Date : 2024-04-09 Xuetao Li, Ziwei Wang, Chengying Yang, Ayhan Bozkurt
In recent years, the escalating demand for electric energy has underscored the need for robust prediction models capable of accurately anticipating consumption patterns. The imperative lies in enabling utilities and policymakers to optimize resource allocation, strategically plan infrastructure development, and ensure the stability and efficiency of the power grid. This study undertakes a comprehensive
-
Optimal operating scenario and performance comparison of biomass-fueled externally-fired microturbine Energy (IF 9.0) Pub Date : 2024-04-09 Konstantinos Bollas, Reyhaneh Banihabib, Mohsen Assadi, Anestis Kalfas
This paper focuses on the determination of the optimal operating scenario of an Externally-Fired Micro-Gas turbine utilizing syngas produced by biomass gasification. Biomass exploitation can contribute to the achievement of the net-zero emissions target in 2050. This can be boosted by the advancement of externally-fired technology. In this study, a dual-objective optimization process, including a validated
-
Research on refrigerant charge determination under different compressor speed and its effects on the performance of transcritical CO2 air-conditioning heat pump system in electric vehicle Energy (IF 9.0) Pub Date : 2024-04-09 Ziqi Jiang, Yafen Tian, Kang Li, Zhaorui Zhao, Ni Liu, Hua Zhang
CO is assumed to be one of the most potential refrigerant alternatives for electric vehicles for its excellent properties. However, the charge determination of CO in current studies remain controversial. In this study, a transcritical CO air-conditioning heat pump system was established and experimentally tested to analyze the optimal charge amount. Based on two conflicting methods of charge determining
-
A backpropagation neural network-based hybrid energy recognition and management system Energy (IF 9.0) Pub Date : 2024-04-08 Xiwen Zhu, Mingxue Li, Xiaoqiang Liu, Yufeng Zhang
For several decades, small electronic devices like wireless sensor network nodes (WSNs) tend to be powered by ambient energy, and the multi-input energy platform attracts much attention because sensors are usually used in complicated surroundings. However, for multi-input energy platform energy management is complex and the demand of the consumers is stochastic. To solve the problems, this paper presents
-
Numerical investigation on performance of solar chimney power plant with three wind resistant structures Energy (IF 9.0) Pub Date : 2024-04-08 Hanbing Xiong, Tingzhen Ming, Tianhao Shi, Yongjia Wu, Wei Li, Renaud de Richter, Nan Zhou
The solar chimney power plant (SCPP) provides the approach to achieving carbon neutrality goals. The power generation of the system decreases drastically due to the ambient crosswinds (ACWs). In this paper, three wind resistant structures, including blockage wall, radial partition wall (RPW), and porous wall are adopted to weaken the effects of the ACWs. In addition, the flow characteristics and power
-
Environmental-Sensing and adaptive optimization of wave energy converter based on deep reinforcement learning and computational fluid dynamics Energy (IF 9.0) Pub Date : 2024-04-08 Hongjian Liang, Hao Qin, Haowen Su, Zhixuan Wen, Lin Mu
This paper introduces a novel coupled model for real-time control of the point absorber wave energy converter (WEC) using parallelized deep reinforcement learning (DRL), where the WEC is situated within a numerical wave tank (NWT) built with the method of computational fluid dynamics (CFD). An in-house solver is developed to couple with the DRL and CFD to solve the interaction between WEC and the fluid
-
A comprehensive 6E analysis of a novel multigeneration system powered by solar-biomass energies Energy (IF 9.0) Pub Date : 2024-04-08 Mohammad Ali Sabbaghi, M. Soltani, Marc A. Rosen
This study presents a novel multigeneration system comprising five different cycles driven by a combination of solar and biomass energy resources. This system includes a modified gas turbine cycle, a -critical CO cycle (TCO), a steam Rankine cycle, a biomass-fueled boiler, and a solar collector. The gas turbines exhibit limited thermal efficiency, primarily due to substantial heat losses. Consequently
-
A transient analysis framework for hydropower generating systems under parameter uncertainty by integrating physics-based and data-driven models Energy (IF 9.0) Pub Date : 2024-04-08 Weichao Ma, Zhigao Zhao, Jiebin Yang, Xu Lai, Chengpeng Liu, Jiandong Yang
-
Identification of carbon responsibility factors based on energy consumption from 2005 to 2020 in China Energy (IF 9.0) Pub Date : 2024-04-08 Yuan Gao, Chin Hao Chong, Gengyuan Liu, Marco Casazza, Xiaoping Xiong, Bojie Liu, Xuanru Zhou, Xiaoyong Zhou, Zheng Li, Weidou Ni, Yan Hao, Linwei Ma
In the process of rapid economic development, the relationship between energy consumption and economic development is close and the coupling relationship is complex. The study proposes a method for the assessment of integrated energy consumption factors. In particular, production and consumption driving factors are expressed in relation to the growth of primary energy consumption responsibility in
-
Typical solar extinction year at Plataforma Solar de Almería (Spain). Application to thermoelectric solar tower plants Energy (IF 9.0) Pub Date : 2024-04-08 Noelia Simal, Jesús Ballestrín, Elena Carra, Aitor Marzo, Jesús Polo, Javier Barbero, Joaquín Alonso-Montesinos, Gabriel López
The atmospheric extinction of solar radiation reflected by heliostats are recognized as an important factor of radiative losses in Concentrating Solar Power technologies in general and especially in thermoelectric solar tower plants. These types of plants are getting larger (≥100 MWe), and consequently the distances between the heliostats and the receiver very often exceed 1 km and radiative losses
-
Scalable printing high-performance and self-healable Ag2Se/terpineol nanocomposite film for flexible thermoelectric device Energy (IF 9.0) Pub Date : 2024-04-08 Mingcheng Zhang, Ying Liu, Jiajia Li, Changxuan Wu, Zixing Wang, Yuexin Liu, Ping Wei, Wenyu Zhao, Kefeng Cai
Flexible thermoelectric (TE) generators (f-TEGs) are promising candidates to power explosively growing wearable electronics by continually converting body heat into electricity. However, intrinsic brittleness, unscalability, and high costs hinder high-performance bulk TE materials from application as f-TEGs. Herein, we report a flexible and self-healable AgSe/terpineol composite film on a nylon membrane
-
A novel solar-aided lignite-fired power generation system with calcium looping CO2 capture, lignite pre-drying and feedwater preheating Energy (IF 9.0) Pub Date : 2024-04-08 Junjie Wu, Yun Li, Yu Han
Integrating solar heat and calcium looping (CaL) process into the existing lignite-fired power generation system is a promising technology to control CO emission. However, the heat released from carbonation process led to the temperature increase of exhaust flue gas together with heat losses in boiler. To recover the waste heat from the exhaust flue gas, this paper proposed a solar-aided lignite-fired