Article
Chemistry, Analytical
Dianqiang Li, Chao Li, Mengjiao Fan, Yuewen Shao, Yifan Sun, Lijun Zhang, Shu Zhang, Yong Huang, Bin Li, Shuang Wang, Xun Hu
Summary: Pyrolysis is affected by low-temperature pretreatment, which changes the structure of the feedstock and affects the evolution of pyrolysis products. Cellulose torrefaction at different temperatures was conducted to study the effect of low-temperature pretreatment on biochar formation. The results showed that the pretreatment at 350 degrees C favored gas formation in pyrolysis but resulted in fewer light organics. On the other hand, pretreatment at 260 degrees C facilitated the formation of anhydrate sugars and organics with pi-conjugated structures.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Agricultural Engineering
Ramesh Potnuri, Dadi V. Suriapparao, Chinta Sankar Rao, Veluru Sridevi, Abhishankar Kumar, Manan Shah
Summary: The effect of torrefaction temperatures and catalyst quantity on the co-pyrolysis of torrefied sawdust and polystyrene was investigated in this study. The results showed that increasing torrefaction temperature led to higher oil and char yields, while gas yield decreased. Catalytic co-pyrolysis exhibited a significant synergy effect, with the maximum synergy observed at a torrefaction temperature of 175 degrees C and catalyst quantity of 15 g. Predictive models were developed using machine learning, which showed high accuracy in predicting product yields and energy usage variables.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Chemical
Peter Keliona Wani Likun, Huiyan Zhang, Yuyang Fan
Summary: Biomass pyrolysis can benefit from torrefaction and co-pyrolysis with plastics to increase the yield and selectivity of aromatic hydrocarbons, and the dual catalyst layout plays an important role in enhancing the aromatic yield.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Agricultural Engineering
Xiaobing Cao, Jie Zhang, Kehui Cen, Fan Chen, Dengyu Chen, Yanjun Li
Summary: Torrefaction pretreatment can effectively reduce the oxygen content in biomass and enhance the carbon content and higher heating value of cellulose. Among the different pretreatment severities studied, treatment at 290°C was found to be the most effective in removing oxygen and improving the properties of cellulose.
BIOMASS & BIOENERGY
(2021)
Article
Green & Sustainable Science & Technology
Xiaona Lin, Lingshuai Kong, Xiajin Ren, Donghong Zhang, Hongzhen Cai, Hanwu Lei
Summary: The catalytic co-pyrolysis of torrefied poplar wood sawdust and high-density polyethylene was studied over hierarchical HZSM-5. Increasing torrefaction temperature improved the production of phenols and alkenes in the bio-oil. Hierarchical HZSM-5 treated with alkaline concentration favored the formation of mono aromatics over polyaromatics, leading to efficient production of valuable mono-aromatic hydrocarbons from biomass and plastic wastes.
Article
Energy & Fuels
Junjie Weng, Zhanjun Cheng, Yi Zhang, Chao Jiang, Lin Long, Jian Wang, Jianfeng Pan
Summary: This study investigates the thermal and catalytic co-pyrolysis of biomass and plastic using catalysts. The results show that the catalyst enhances the decomposition of biomolecule and increases the production of specific compounds, providing insights into the mechanism of catalytic co-pyrolysis.
Article
Energy & Fuels
Takahiro Kobori, Kunio Yoshikawa, Tamer M. Ismail, T. M. Yasser, Abraham Castro Garcia, Kiryu Kanazawa, Fumitake Takahashi
Summary: This study investigated the effects of electron injection on pyrolysis of PP and cellulose. The results showed that electron injection promoted the pyrolysis of both PP and cellulose, leading to reduced tar generation. This effect may be attributed to the production of highly reactive oxygen species, activation of hydration reactions, and formation of hydrocarbon radicals.
Article
Thermodynamics
Haifeng Jiang, Haipeng Liu, Jiaxin Dong, Jiaxing Song, Sunhua Deng, Jie Chen, Yu Zhang, Wenpeng Hong
Summary: In this study, a Ce-Co-Na ternary composite metal catalyst was synthesized and used for catalytic cracking of cellulose to prepare ketone-rich bio-oil. The introduction of CO2 as a reaction atmosphere enhanced the selectivity of ketones, especially 2,3-dimethyl-2-cyclopenten-1-one. The catalyst also promoted the generation of CO in the syngas.
Article
Agricultural Engineering
Junjie Weng, Cunhao Cui, Zhongyue Zhou, Yi Zhang, Zhanjun Cheng, Jianfeng Pan
Summary: This study investigates the co-pyrolysis process of cellulose and polyethylene over MgO catalyst using TG coupled with PI-TOFMS, showing that the MgO catalyst can improve the pyrolysis of cellulose and enhance the C-C bond breaking of polyethylene.
BIORESOURCE TECHNOLOGY
(2021)
Article
Thermodynamics
Hanie Hakimian, Sumin Pyo, Young-Min Kim, Jungho Jae, Pau Loke Show, Gwang Hoon Rhee, Wei-Hsin Chen, Young-Kwon Park
Summary: This study investigated the catalytic pyrolysis of cellulose with oil sludge as a co-feeding feedstock, with Ni/HZSM-5 catalyst showing the best cracking and BTEXs formation effect. The experimental BTEXs yields were higher than theoretical values over all catalysts, indicating a synergistic effect. Highest synergistic effect was observed when 1/3 of cellulose/oil sludge mixture was used as the feedstock.
Article
Agricultural Engineering
Xikui Zhang, Zhaosheng Yu, Xiaoluan Lu, Xiaoqian Ma
Summary: This study investigated the kinetic behavior and products of the co-pyrolysis of chili straw and polypropylene under different conditions. Results showed that adding HZSM-5 increased the aromatic hydrocarbons in the product and decreased the residual mass, while microwave pretreatment at higher power levels reduced oxygenated composition and increased weight loss rate peak, with a decrease in activation energy.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Xincheng Lu, Ruting Xu, Kang Sun, Jianchun Jiang, Yunjuan Sun, Yanping Zhang
Summary: This study investigated the impact of torrefaction pretreatment on the physicochemical characteristics and pyrolysis behavior of cornstalk. The results showed that higher torrefaction temperature improved the fuel properties by decreasing volatile content and increasing carbon content and heating value. The treatment also affected the degradation of hemicellulose and lignin as well as the crystallinity degree of cornstalk. The analysis of kinetic and thermodynamic parameters provided further support for the findings. The research findings are important for the thermochemical conversion of cornstalk into energy and chemicals.
Article
Energy & Fuels
Kai Sun, Wanli Wang, Nickolas J. Themelis, A. C. Thanos Bourtsalas, Qunxing Huang
Summary: The co-pyrolysis of PC and PE/PP in the presence of HZSM-5 catalyst without external hydrogen addition was studied to promote deoxygenation and aromatic hydrocarbon formation. Increasing the blending ratio of PE/PP resulted in a higher yield of gas phase products and decreased yields of oil phase, coke, and solid products. Catalyst regeneration reduced acidity but showed slight decrease in deoxygenation and aromatization effects.
Article
Agricultural Engineering
Rishikesh Kumar Singh, Arnab Sarkar
Summary: The present study optimizes the process parameters of torrefied pigeon pea stalk pyrolysis to maximize bio-oil yield using response surface methodology (RSM). Pyrolysis of torrefied biomass results in significant improvements in calorific value (29-34% increase), water content (29-33% decrease), and oxygen content (9-12% decrease) compared to raw biomass. The study also shows that torrefaction of raw biomass enhances hydrodeoxygenation (HDO) effectiveness, enabling desired properties to be achieved in a single stage HDO, leading to cost reduction. The bio-char from torrefied biomass exhibits superior fuel characteristics, lower particulate emission, and better compatibility with bituminous coal in co-combustion.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Chemistry, Analytical
Yingmei Zhai, Tianhua Yang, Yue Zhang, Yiming Zhu
Summary: Biomass torrefaction followed by co-pyrolysis with oil shale has great potential in upgrading bio-oil. A comparative analysis of oil shale co-pyrolysis with raw/torrefied corn stalk was conducted. Oil shale played a key role in promoting oil yield during co-pyrolysis, but only after corn stalk torrefaction. The optimal blending ratio of oil shale for both raw and torrefied corn stalk is 50%.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Thermodynamics
Si Woo Han, Jeong Jae Lee, Diyar Tokmurzin, Seok Hyeong Lee, Ji Young Nam, Sung Jin Park, Ho Won Ra, Tae-Young Mun, Sang Jun Yoon, Sung Min Yoon, Ji Hong Moon, Jae Goo Lee, Young-Min Kim, Young Woo Rhee, Myung Won Seo
Summary: The study investigated the air gasification properties of SRF with high content of residual mixed waste plastic in a lab scale bubbling fluidized bed gasifier. The results showed that gas yield increases and tar yield decreases as the operating temperature and air-to-fuel equivalence ratio (ER) increases, with changes in the concentration of various gases in the gas product. The H2/CO ratio increases with rising temperature and decreases with rising ER, while carbon conversion efficiency (CCE) and cold gas efficiency peak at 800 degrees C and ER of 0.25.
Article
Thermodynamics
Hanie Hakimian, Sumin Pyo, Young-Min Kim, Jungho Jae, Pau Loke Show, Gwang Hoon Rhee, Wei-Hsin Chen, Young-Kwon Park
Summary: This study investigated the catalytic pyrolysis of cellulose with oil sludge as a co-feeding feedstock, with Ni/HZSM-5 catalyst showing the best cracking and BTEXs formation effect. The experimental BTEXs yields were higher than theoretical values over all catalysts, indicating a synergistic effect. Highest synergistic effect was observed when 1/3 of cellulose/oil sludge mixture was used as the feedstock.
Article
Engineering, Environmental
Abid Farooq, Jechan Lee, Hocheol Song, Chang Hyun Ko, Im-Hack Lee, Young-Min Kim, Gwang Hoon Rhee, Sumin Pyo, Young-Kwon Park
Summary: This study introduces a method to valorize hazardous waste like used COVID-19 face masks through catalytic gasification using Ni-loaded ZSM-5 type zeolites. The research found that 25% Ni loading on ZSM-5 is optimal for H-2 production. Using steam as gasifying agent can reduce the content of N-containing species in the gasification product, potentially hazardous air pollutants.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Sumin Pyo, Jechan Lee, Young-Min Kim, Youna Park, Im Hack Lee, Yong Jun Choi, Gwang Hoon Rhee, Sang-Chul Jung, Young-Kwon Park
Summary: Catalytic fast co-pyrolysis with HZSM-5 and LLDPE effectively upgrades BHO to less hazardous fuel, with DeHZSM-5 showing enhanced hydrocarbon production and reduced content of toxic compounds. The study experimentally validates the feasibility of this approach for bio-heavy oil conversion.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Materials Science, Ceramics
Young Min Kim, Jong Han Mun, Sang-Joo Kim
Summary: The study re-analyzed the measured data of Mun et al., providing a modified set of fitting equations for investigating the evolution of properties in ferroelectric ceramics during stress-induced domain switching. Normalizing the remnant state variables revealed some intrinsic characteristics of the domain switching process in the materials.
JOURNAL OF THE KOREAN CERAMIC SOCIETY
(2022)
Article
Engineering, Environmental
Se Jeong Lim, Young-Kwon Park, Hyein Kim, Jihye Kwon, Hye Mi Moon, Yeonsook Lee, Atsushi Watanabe, Norio Teramae, Hajime Ohtani, Young-Min Kim
Summary: This study introduces a new method for the identification and quantification of synthetic microfibers emitted from textiles during the laundering process. The method involves the filtration of laundry wastewater, solvent extraction, and pyrolysis-gas chromatography/mass spectrometry. The results show that blended textiles produce a larger amount of microplastics compared to single textiles.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Food Science & Technology
Juhee Park, Jihee Lee, Young-Min Kim, Min Ji Kang, Hee-Jae Suh, Jihyun Lee, Hee-Seok Lee, Chan Lee
Summary: A new HPLC method with evaporative light scattering detection was developed for the quantitative analysis of PVOH products, and was validated using Py-GC/MS. The method showed good linearity, accuracy, repeatability, and intermediate precision, and can be applied for analyzing PVOH in dietary supplement tablets.
FOOD SCIENCE AND BIOTECHNOLOGY
(2022)
Article
Energy & Fuels
Si Woo Han, Diyar Tokmurzin, Jeong Jae Lee, Sung Jin Park, Ho Won Ra, Sang Jun Yoon, Tae-Young Mun, Sung Min Yoon, Ji Hong Moon, Jae Goo Lee, Young-Min Kim, Young Woo Rhee, Myung Won Seo
Summary: This study investigates the gasification characteristics of waste plastic and the tar removal properties of activated carbon and olivine. The results show that using activated carbon and olivine can effectively reduce the tar content and improve the quality of the product gas, and steam gasification can increase the content of hydrogen and carbon monoxide.
Article
Environmental Sciences
Jin Sun Cha, Young-Min Kim, Im Hack Lee, Yong Jun Choi, Gwang Hoon Rhee, Hocheol Song, Byong-Hun Jeon, Su Shiung Lam, Moonis Ali Khan, Kun-Yi Andrew Lin, Wei-Hsin Chen, Young-Kwon Park
Summary: This study investigated the catalytic ozone oxidation of hazardous toluene using sawdust char (SDW) as a catalyst. The catalyst properties and their effects on toluene removal were analyzed, and it was found that the improved MnOx/SDC-K3 catalyst exhibited higher removal efficiency.
ENVIRONMENTAL POLLUTION
(2022)
Article
Energy & Fuels
Jae-Wang Shim, Sumin Pyo, Su Shiung Lam, Jungho Jae, Byong-Hun Jeon, Moonis Ali Khan, Kun-Yi Andrew Lin, Young-Min Kim, Sang-Chul Jung, Young-Kwon Park
Summary: This study investigated the pyrolysis kinetics and product distribution of chicken manure through thermogravimetric analysis and pyrolyzer-gas chromatography/mass spectrometry. The results showed different decomposition reactions at different stages and the catalytic effect of acid catalysts on product formation.
Article
Environmental Sciences
Hanie Hakimian, Soheil Valizadeh, Young-Min Kim, Young-Kwon Park
Summary: This research investigated the catalytic pyrolysis of oil sludge using metal-loaded HZSM-5 catalysts to produce value-added aromatics. Results showed that Ni-loaded HZSM-5 catalyst had the highest yield of BTEXs and other aromatics. Increasing the reaction temperature and catalyst amount also improved the yield.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Min-Ji Ha, Jung Eun Lee, Y. Park, Jin Sun Cha, Young-Min Kim, Beom-Sik Kim
Summary: The catalytic ozonation of methylethylketone (MEK) was investigated using synthesized Mn and Cu-loaded ZSM-5 catalysts. Different catalysts were studied for the removal of MEK and ozone, and 5 wt% Mn/ZSM-5 and 5Mn1CuZSM showed the highest efficiency, respectively. The 5Mn1CuZSM catalyst exhibited superior catalytic reactivity for ozone conversion and CO2 selectivity.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yujin Hwang, Young -Min Kim, Jung Eun Lee, Gwang Hoon Rhee, Pau-Loke Show, Kun -Yi Andrew Lin, Young-Kwon Park
Summary: Removal of harmful volatile organic compounds (VOCs), such as 2-butanone, emitted from industrial plants is crucial for clean air. Recycling porous spent fluid catalytic cracking (SFCC) catalysts from petroleum refineries can reduce waste and reuse resources. Mn-Cu/SFCC and Mn/SFCC catalysts exhibited superior catalytic efficiency in the ozonation of 2-butanone compared to other catalysts studied. The improved distribution of Mn3+ species and O-vacancy sites in Mn/SFCC and Mn-Cu/SFCC catalysts enhanced their catalytic activity for 2-butanone and ozone removal.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Cheolwoo Park, Eun-Suk Jang, Young-Min Kim
Summary: The effects of temperature on the product quality of wood pellet torrefaction were studied. Increasing the torrefaction temperature resulted in a decrease in solid yield and an increase in gas and liquid yield due to the elimination and decomposition of hemicellulose, cellulose, and lignin. The heating value of the wood pellets increased, but overall energy recovery efficiency decreased. The torrefied wood pellets exhibited improved hydrophobicity and decreased moisture absorption. Low-temperature torrefaction produced typical pyrolyzates of hemicellulose and cellulose, while high-temperature torrefaction increased the amount of lignin pyrolyzates and provided a potential tar reduction during gasification.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Hyeon Su Heo, Sumin Pyo, Bo Sung Kang, Jung Sul Jung, Gwang Hoon Rhee, Young-Min Kim, Ji Man Kim, Young-Kwon Park
Summary: In this study, the feasibility of low-cost catalysts (gamma-Al2O3, spent FCC catalyst, and natural zeolite) in the pyrolysis of wood-plastic composite (WPC) was evaluated using thermogravimetric and pyrolyzer-gas chromatography/mass spectrometry analyses. The use of low-cost catalysts during catalytic fast pyrolysis (CFP) was found to decrease the decomposition temperature of polyethylene and polypropylene in WPC. Natural zeolite exhibited the lowest activation energy (Ea) of CFP, followed by spent FCC catalyst and gamma-Al2O3, respectively. Although CFP over natural zeolite was less effective in decreasing the production of low-quality hydrocarbons, paraffins, and olefins compared to spent FCC catalyst and gamma-Al2O3, it produced the largest amount of value-added aromatic hydrocarbons due to its high and strong acidity.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)
