Article
Thermodynamics
Zixin Wang, Jamison Watson, Tengfei Wang, Shuqi Yi, Buchun Si, Yuanhui Zhang
Summary: Hydrothermal liquefaction (HTL) is a promising method to convert wet biomass into biocrude oil, and a two-stage co-fermentation process with crude glycerol was developed to enhance biogas production efficiency from HTL aqueous phase.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Engineering, Environmental
Tae-Hoon Kim, Dayeong Song, Yun-Ju Jeon, Okhwa Hwang, Joo-Youn Nam, Yeo-Myeong Yun
Summary: This study found that using a combination of two or more conductive materials (CMs) can improve the production in a two-stage fermentation process (TSFP). Magnetite nanoparticle (MNP) played a crucial role in enhancing H2 production in the first stage, while powdered activated carbon (PAC) contributed to higher CH4 production in the second stage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Xinyuan Liu, Yuyu Yang, Nan Wu, Yong Wei, Huiyong Shan, Hui Zhao
Summary: Batch experiments were conducted to evaluate the production of biohydrogen and biomethane through co-digestion of chicken manure and food waste. Results showed that both hydrogen and methane yields were improved in the co-digestion process, but there might be some inhibition factors in the chicken manure affecting the hydrogen fermentation.
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2022)
Article
Agricultural Engineering
Mahmoud M. Ali, Ahmed M. Mustafa, Ximing Zhang, Hongjian Lin, Xin Zhang, Umar Abdulbaki Danhassan, Xuefei Zhou, Kuichuan Sheng
Summary: The addition of molybdate and ferric chloride to the dark fermentation stage improves biohythane production from sulfate-rich hydrolyzed tofu processing residue and reduces H2S production.
BIORESOURCE TECHNOLOGY
(2022)
Review
Environmental Sciences
Paulo Andre Cremonez, Joel Gustavo Teleken, Thompson Ricardo Weiser Meier, Helton Jose Alves
Summary: The use of multi-stage anaerobic digestion technology is effective in treating agroindustrial effluents, especially substrates like manipueira, vinasse, and dairy wastewater which yield high amounts of hydrogen and methane. Future research should focus on new microbial technologies and optimizing process parameters for maturation and scale-up of the two-stage anaerobic digestion technique.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Environmental Sciences
Aziz-Ur-Rahim Bacha, Iqra Nabi, Muhammad Zaheer, Wenbiao Jin, Lei Yang
Summary: Plastic waste has received significant research attention due to its accumulation, environmental issues, and impact on living organisms. There is an urgent need to remove plastic waste from the environment, and biodegradation is a promising treatment method. However, there is limited review on the bio-decomposition of plastics and the existing microbial species involved. This study provides an overview of influencing factors, existing species, and research gaps in biodegradation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Energy & Fuels
Katarzyna Bulkowska, Wioleta Mikucka, Tomasz Pokoj
Summary: This study investigated the effect of glycerine phase on the anaerobic digestion of cattle manure under mesophilic conditions. It was found that the addition of 10% glycerine phase significantly increased biogas production and methane content. Biogas formation was strongly correlated with the concentrations of ammonium nitrogen and volatile fatty acids, and the biogas production decreased over time.
Article
Thermodynamics
Peni Astrini Notodarmojo, Takeshi Fujiwara, Habuer, Dinh Pham Van
Summary: This study compared the carbon flow of two-stage anaerobic co-digestion using oyster shells and alkalis as pH control conditioners. Results showed higher methane production performance with NaOH, but oyster shells can act as a buffer for a more stable pH environment.
Article
Agricultural Engineering
Prakaidao Pomdaeng, Chen-Yeon Chu, Kobsak Sripraphaa, Hathaithip Sintuya
Summary: Napier grass has been identified as having the greatest potential for gaseous bioenergy production. A study evaluated the biohydrogen and biomethane yields from untreated Napier grass using anaerobic digestion technology in single-stage and two-stage continuous bioreactors. Results showed that the two-stage system performed better, with a 30% higher total energy recovery compared to the single-stage system.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Xinyuan Liu, Ruying Li, Min Ji, Nan Wu, Fan Yang
Summary: The study found that initial pH plays a significant role in the two-stage hydrogen and methane production process by co-digestion of food waste and waste activated sludge. While hydrogen production remained consistent across a range of initial pH levels, methane production was influenced by the pH conditions. Acidic conditions were beneficial for hydrogen fermentation efficiency but had a negative impact on methane fermentation, while alkaline conditions showed the opposite pattern.
ENVIRONMENTAL ENGINEERING SCIENCE
(2021)
Article
Agricultural Engineering
Shuang Zhang, Xinxin Ma, Haishu Sun, Dong Xie, Pan Zhao, Qunhui Wang, Chuanfu Wu, Ming Gao
Summary: The use of an ethanologenic-methanogenic system for co-digestion of food waste and spent mushroom substance showed advantages in increasing methane yield and system stability.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Tingting Hou, Jiamin Zhao, Zhongfang Lei, Kazuya Shimizu, Zhenya Zhang
Summary: The study investigated the effects of high salinity on the co-production of hydrogen and methane from two-stage AD of food waste, with the addition of Air-NBW found to increase hydrogen and methane yields. The results suggest that improvement in microbial electron transfer and enzymatic activities in each stage through Air-NBW addition could provide an efficient approach for hydrogen and methane recovery under high salinity conditions.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agriculture, Dairy & Animal Science
Edwin Rafael Alvarado-Ramirez, Aristide Maggiolino, Mona M. M. Y. Elghandour, Marco Antonio Rivas-Jacobo, Gilberto Ballesteros-Rodea, Pasquale De Palo, Abdelfattah Z. M. Salem
Summary: The co-ensiling of maize with Moringa oleifera (MOL) improved the nutritional quality of the silage. The use of steers as inoculum sources resulted in higher biogas and methane production, as well as better CH4 conversion efficiency compared to using sheep as inoculum sources. The inclusion of MOL in the silage reduced biogas production, methane production, and hydrogen sulfide production, but did not affect the parameters of CH4 and H2S.
Article
Thermodynamics
Fengrui Sun, Dameng Liu, Yidong Cai, Yongkai Qiu
Summary: It is important to study the coupling mechanism of microscale and macroscale permeabilities in coalbed methane (CBM) reservoirs for scientific and engineering purposes. This paper reveals the characteristics of the pore-fracture system of coal matrix and establishes a coupled permeability model to clarify the coal rank control mechanism on the transformation of micro-macro permeabilities. Based on a microscale gravitational field model, the influence mechanism of coal rank-pressure coupling on the slippage/diffusion/jump of adsorbed gas in the surface control field is also clarified.
Article
Energy & Fuels
Lia Paula Poloni Batista, Ana Paula Paulinetti, Antonio Djalma Nunes Ferraz Jr, Roberta Albanez, Suzana Maria Ratusznei, Claudia Etchebehere, Giovanna Lovato, Jose Alberto Domingues Rodrigues
Summary: The goal of this study was to compare the efficiency of a single-stage and two-stage system for anaerobic digestion and bioenergy production using a sequencing batch and fed-batch biofilm reactor. The results showed that the single-stage system achieved better performance with high organic matter removal, methane productivity, and yield. Temperature also influenced the microbial community diversity and the abundance of Methanosarcina genus.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Chemistry, Multidisciplinary
Xiaobo Guo, Ao Xia, Wuyuan Zhang, Feng Li, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Fatty acid photodecarboxylase of Chlorella variabilis NC64A (CvFAP) is a novel photoenzyme that shows potential in waste lipid treatment and sustainable aviation fuel production. However, CvFAP is susceptible to blue light. In this study, it was found that an anaerobic environment significantly improved the photostability of CvFAP. Decarboxylation of palmitic acid by CvFAP under anaerobic conditions resulted in a 44.7% increase in pentadecane yield compared to aerobic conditions. The residual activity of CvFAP after blue-light preillumination in an anaerobic environment was 80.4%, 258.7 times higher than that in an aerobic environment. The accumulation of superoxide radical and singlet oxygen in CvFAP under aerobic conditions led to its poor photostability. The anaerobic environment helped mitigate the production of these reactive species, thus improving the photostability of CvFAP.
CHINESE CHEMICAL LETTERS
(2023)
Article
Agricultural Engineering
Feng Li, Ao Xia, Xiaobo Guo, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: In this study, CvFAP was immobilized in magnetic nickel ferrite (NiFe2O4) nanoparticles for easy recovery. The interaction between Ni2+ and histidine of CvFAP was clarified by detecting the shift of Ni 2p in electron binding energy. The coordination of NiFe2O4 and CvFAP resulted in an efficient affinity binding with a capacity of 98 mg/g carrier. Hydrocarbon fuel concentration of 3.7 mM was obtained by NiFe2O4@CvFAP-induced photoenzymatic decarboxylation. The high stability of CvFAP in terms of residual enzyme activity of 79.7% at pH 9.0 and that of 68% at organic solvent ratio of 60% was observed.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Rajas Shinde, Anga Hackula, Richard O. Shea, Susanne Barth, Jerry D. Murphy, David M. Wall
Summary: Future energy systems require dispatchable renewable energy to balance high shares of intermittent renewables in electrical grids. Biogas from anaerobic digestion can generate electricity on-demand. High-rate methanogenic reactors, such as the Upflow Anaerobic Sludge Blanket (UASB), can quickly respond to variations in feeding. Experimental trials validated the feasibility of operating the UASB in a demand-driven manner, demonstrating its flexibility and potential to provide positive and negative balance to the power grid.
BIORESOURCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Donal 'O Ceileachair, Sean O'Callaghan, David M. Wall, David Goulding, Declan O'Connor, Jerry D. Murphy, Richard O'Shea
Summary: On-farm anaerobic digestion plants can be used in areas without gas grid infrastructure access to improve manure management and produce renewable gas. A modelling analysis of a virtual biomethane pipeline is presented, showing the collection and delivery of gas from 100 onfarm biogas plants. Different scenarios are analyzed, considering different routing options and equipment. The use of a mobile-upgrading unit results in increased routing distance and emissions, impacting the sustainability of the collected biomethane.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Richard O'Shea, Yan Yang, Komal Kansagra, Daniel T. Hickey, Danielle Kohler, Jerry D. Murphy
Summary: This study aims to evaluate the potential biogas resource of by-products from 9 operational distilleries in 7 countries. It also calculates the energy resource and greenhouse gas emission savings from using these by-products as feedstock for anaerobic digestion. Additionally, other criteria such as by-product properties and facility size are important when considering the integration of anaerobic digestion with distilleries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biotechnology & Applied Microbiology
Nurul Syahirah Mat Aron, Kit Wayne Chew, Zengling Ma, Yang Tao, Malinee Sriariyanun, Inn Shi Tan, Cuong Nguyen Manh, Ao Xia, Tonni Agustiono Kurniawan, Pau Loke Show
Summary: The increase in global temperature requires action to reduce greenhouse gas emissions, particularly in the transportation sector, which contributes up to 25% of total emissions. Biofuels have emerged as a potential sustainable alternative to traditional fossil fuels. However, the production of biofuels raises concerns about food security. This study focuses on the extraction of lipids from microalgae using a liquid biphasic flotation system combined with a sugaring-out method, demonstrating high extraction efficiency and the potential of sugar solution as a cell disruption agent.
FERMENTATION-BASEL
(2023)
Article
Engineering, Chemical
Anga Hackula, Richard O'Shea, Jerry D. Murphy, David M. Wall
Summary: The by-products from whiskey distillation, which contain organic liquids with high COD and residues with high solid content, need to be repurposed and valorized to reduce the carbon footprint of food and beverage industries. A two-phase anaerobic digester system, specifically the LBR-EGSB, is designed in this paper to produce VFAs and biogas for whiskey distilleries to transition towards a low-carbon bioeconomy. The system improves upon previous reactor designs by using an external gas-liquid-solid separator and a siphon-actuated leachate cup, and by replacing fresh water with distillery's liquid by-products. The LBR-EGSB proves to be effective in generating VFAs, COD removal, and methane-rich biogas, offering more by-product valorization and decarbonization opportunities.
ACS ENGINEERING AU
(2023)
Article
Thermodynamics
Chen Deng, Xihui Kang, Richen Lin, Benteng Wu, Xue Ning, David Wall, Jerry D. Murphy
Summary: Lignocellulosic biomass can contribute to biogas production, but the recalcitrant structure of lignin hinders its biodegradation. Direct interspecies electron transfer (DIET) can enhance the degradation of lignin derivatives. In a circular bioeconomy system, lignin-derived biochar and activated carbon were found to improve the digestion of syringaldehyde, a typical lignin monomer. Biochar reduced the lag-phase time by 33-42% through enhanced syntrophic hydrogenotrophic methanogenesis, while activated carbon decreased the lag-phase time by 46-85% and promoted the degradation of volatile fatty acids by combining enhanced syntrophic oxidation and DIET. The highest biomethane yield was achieved when activated carbon was added at a dosage of 20 g/L, increasing by 33% compared to syringaldehyde digestion alone.
Article
Thermodynamics
Davis Rusmanis, Yan Yang, Aoife Long, Nathan Gray, Kelvin C. Martins, Sean Og O. Loideain, Richen Lin, Xihui Kang, Donal Og Cusack, James G. Carton, Rory Monaghan, Jerry D. Murphy, David M. Wall
Summary: Decarbonising hard-to-abate sectors is essential for achieving a future net-zero economy. Electrofuels, which store electricity as low carbon energy vectors, can be used in areas where electrification is challenging, enabling the decarbonisation of sectors like transportation, agriculture, and wastewater treatment. This study analyzed the production of electrofuels at an industrial site using electrolysis to generate green hydrogen. The findings underscored the importance of scaling up hydrogen production.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Xihui Kang, Chen Deng, Rajas Shinde, Richen Lin, Jerry D. Murphy
Summary: This study investigated the effects of short-chain carboxylic acid-based deep eutectic solvents (DESs) pretreatments on lignin extraction from willow and subsequent biomethane production. Results showed that lactic acid-based DES pretreatment outperformed other types of DES pretreatment in terms of lignin removal efficiency and methane production. The optimal conditions for lactic acid-based DES pretreatment retained over 94% of the glucan content in the raw willow and achieved the highest lignin removal of 80%, resulting in a significant increase in biomethane production and a reduction in digestion time.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Energy & Fuels
Jingmiao Zhang, Shuai Wu, Ao Xia, Dong Feng, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Anaerobic digestion (AD) technology is an effective method for biogas production and livestock waste treatment. This study investigated the impact of oxytetracycline (OTC) on the AD process and found that OTC significantly inhibited methane production, with methane yields decreasing by 58.6% and 73.3% in mesophilic and thermophilic ADs respectively at an initial OTC concentration of 400 mg/L. OTC can be degraded by the AD process with a removal efficiency above 90% at lower concentrations. Higher OTC concentrations resulted in lower bio-methane yield, energy conversion efficiency, and contaminant removal in both mesophilic and thermophilic ADs.
Article
Green & Sustainable Science & Technology
Xue Ning, Chen Deng, Xihui Kang, Richard O'Shea, David M. Wall, Richen Lin, Jerry D. Murphy
Summary: This research investigates the optimization of biomethane yield from grass silage and cattle slurry through biochar-supplemented two-stage anaerobic digestion. The results demonstrate that the addition of biochar can increase methane production and improve the electrochemical properties of the digester contents.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biotechnology & Applied Microbiology
Jorge Diaz Huerta, Richard O'Shea, Jerry Murphy, David M. Wall
Summary: Marginal Abatement Cost Curves aim to compare and assess greenhouse gas mitigation options available in different sectors of the economy. In the Irish agricultural sector, large anaerobic digestion facilities are currently seen as a high-cost abatement solution. Previous studies on anaerobic digestion abatement costs have evaluated options such as biogas generation and renewable heat production, but they may not fully capture the variable nature of these systems.
Article
Engineering, Environmental
Feng Li, Ao Xia, Xiaobo Guo, Wuyuan Zhang, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Fatty acid photodecarboxylase (CvFAP) found in Chlorella variabilis NC64A can efficiently catalyze the conversion of C16-C18 fatty acids into shortened hydrocarbons under visible light. In this study, a cascade system integrating lipase hydrolysis and CvFAP decarboxylation was demonstrated for the efficient production of hydrocarbon fuels from waste oils, achieving a high production rate of 18.4 mM/h and an optimal conversion of 61.2% with a residence time of 50 min.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Ao Xia, Xiaobo Guo, Yingxin Chai, Wuyuan Zhang, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: It was documented that green light was able to enhance the photostability of fatty acid photodecarboxylase from Chlorella variabilis (CvFAP). Compared to blue light, green light increased the yield of pentadecane by 27.6% and improved the residual activity of CvFAP by 5.9-fold after preillumination. Kinetics and thermodynamics studies showed that blue light facilitated a high activity of CvFAP.
CHEMICAL COMMUNICATIONS
(2023)
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.