Article
Energy & Fuels
Ana Picallo-Perez, Jose Maria Sala-Lizarraga
Summary: This study defines and analyzes the performance of a polygeneration system in different locations in Spain to maintain the thermal comfort and air quality of an office building. The system in Bilbao is self-sufficient in summer, with no need to import electricity from the grid. By calculating polygeneration indicators, energy savings related to a separated production facility can be quantified.
Review
Biochemistry & Molecular Biology
Francieli Colussi, Hector Rodriguez, Michele Michelin, Jose A. Teixeira
Summary: The economically viable alternative of agricultural by-product bioethanol provides a sustainable solution for expanding the use of renewable energy, ensuring greater energy supply security, and reducing environmental impacts. Improving the efficiency of existing processes is crucial to reduce costs, industrial waste, and carbon footprint. Ionic liquids (ILs) have shown promise in achieving cleaner processes and efficient dissolution and fractionation of lignocellulose for biofuel production. This review analyzes recent advances in biofuel production from lignocellulosic biomass using ILs as pretreatment and highlights cost optimization techniques for robust conversion processes.
Review
Thermodynamics
A. S. Mehr, A. Lanzini, M. Santarelli, Marc A. Rosen
Summary: There is a growing interest in high temperature fuel cells for their potential in multi-service applications. Integration of SOFC and MCFC systems is receiving much attention for proposing polygeneration plants. The most common polygeneration designs involve utilizing the exhaust gases from fuel cell systems for heat recovery.
Article
Biochemistry & Molecular Biology
Jianyun Zhang, Zhiwei Yang, Linwei Ma, Weidou Ni
Summary: This study quantified the exergy losses of coal-based series polygeneration systems and evaluated the potential efficiency improvements achievable by applying advanced technologies. It found that overall exergy loss can be significantly reduced by implementing selected advanced technologies in gasification, methanol synthesis, and power generation components of the system.
Article
Agricultural Engineering
Zeeba Saeed, Suriya Palamae, Punyanich Intharapat, Narita Khundamri, Varaporn Tanrattanakul, Yutthana Tirawanichakul, Oramas Suttinun
Summary: Plasma surface modification to improve yeast biofilm immobilization on bio-based epoxy foam resulted in enhanced ethanol production and shortened immobilization period. The modified foam promoted yeast cell attachment and enhanced adhesion force, preventing biofilm detachment and improving tolerance to inhibitors in the hydrolysate. Overall, this approach offers a more efficient and economical fermentation process.
BIOMASS & BIOENERGY
(2021)
Review
Agricultural Engineering
A. Saravanan, P. Senthil Kumar, S. Jeevanantham, S. Karishma, Dai-Viet N. Vo
Summary: The conversion of biomass into biofuels is an innovative approach to address environmental pollution and reduce carbon emissions. Lignocellulosic biomass has attracted researchers around the world as a main feedstock for biofuel production, with various pretreatment methods being widely used to enhance hydrolysis rate and accessibility.
BIORESOURCE TECHNOLOGY
(2022)
Article
Thermodynamics
Wei Wu, Lei Zheng, Bin Shi, Po-Chih Kuo
Summary: Utilizing municipal solid waste (MSW) as feedstock for energy production is a cost-effective and environmentally friendly technology proposed in three configurations: MSW-based IGCC power system, MSW-based IGCC polygeneration system, and CaO-based IGCC polygeneration system. Each design offers different advantages in terms of energy efficiency, CO2 emissions, and overall exergy efficiency.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Elyas Afra, Ali Abyaz, Ahmadreza Saraeyan
Summary: This study aimed to evaluate the quality of fuel briquettes produced from ground and shredded bagasse with different particle sizes. The use of nano-lignocellulosic binders improved the physical, mechanical, and thermal properties of the briquettes. It was found that at 9% nano-lignocellulose content, shredded bagasse briquettes had higher calorific value and compressive strength.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Multidisciplinary
Jose A. Perez Pimienta, Gabriella Papa, Jian Sun, Vitalie Stavila, Arturo Sanchez, John M. Gladden, Blake A. Simmons
Summary: Pretreatment of Agave bagasse using a biocompatible low-cost protic IL, followed by enzymatic saccharification and ethanol fermentation, can achieve high sugar conversion and ethanol yield. Optimized pretreatment conditions can improve total ethanol yields, lignin removal, and glucan conversion.
Article
Thermodynamics
Avinash S. R. Subramanian, Truls Gundersen, Thomas A. Adams II
Summary: The optimal design and operation of a polygeneration system that uses waste tire feedstock to produce electricity, fuels, and chemicals is influenced by product prices and CO2 tax rates, favoring the production of one fuel or chemical along with electricity under varying market conditions.
Review
Biotechnology & Applied Microbiology
Chaitanya Reddy Chilakamarry, A. M. Mimi Sakinah, A. W. Zularisam, Ashok Pandey, Dai-Viet N. Vo
Summary: This review discusses the development and application of bioethanol as a green and alternative fuel, focusing on the sources and production methods from first to third generation, as well as the prospects and methods for ethanol production using crude glycerol waste.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Agricultural Engineering
R. Reshmy, Eapen Philip, Aravind Madhavan, Ranjna Sirohi, Arivalagan Pugazhendhi, Parameswaran Binod, Mukesh Kumar Awasthi, Narisetty Vivek, Vinod Kumar, Raveendran Sindhu
Summary: Lignocellulosic biomass is increasingly used for biofuels, platform chemicals, and biomaterials due to its unique characteristics. Proper raw material selection, nano biotechnology integration, and viable process design are crucial for cost-effective product development. These materials are technologically and economically viable, environmentally friendly, and can reduce effluent load.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Zhang Xi, Soroush Eshaghi, Farshid Sardari
Summary: The study focuses on a trigeneration system based on parabolic trough solar collectors and a thermal energy storage tank for power, heating, and freshwater production simultaneously. Analysis is done from energy, exergy, and exergoeconomic perspectives, with parametric analysis revealing optimal performance in two scenarios through a multi-objective genetic algorithm and LINMAP decision-making method. The system shows potential for net output power, heating capacity, and freshwater rate, but also reveals areas for improvement in energy efficiency and cost reduction through optimization.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Agricultural Engineering
Bikram Basak, Ramesh Kumar, A. V. S. L. Sai Bharadwaj, Tae Hyun Kim, Jung Rae Kim, Min Jang, Sang-Eun Oh, Hyun-Seog Roh, Byong-Hun Jeon
Summary: Emerging physicochemical pretreatment methods play a crucial role in efficient lignocellulose bioconversion and biofuel production by improving biomass accessibility and separating lignocellulosic biocomponents. These methods enable highly efficient lignocellulose bioconversion and contribute to addressing the global energy crisis by simplifying operation, reducing costs, and being environmentally friendly.
BIORESOURCE TECHNOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Magdalena Broda, Daniel J. Yelle, Katarzyna Serwanska
Summary: Given the limited resources for fossil fuels and the growing global energy demands, it is crucial to find sustainable, environmentally friendly, renewable, and economically viable alternative energy sources. One promising option is the production of second-generation bioethanol from non-food lignocellulosic biomass. However, the commercial production of cellulosic ethanol faces challenges such as high research and production costs. This review summarizes the current state of bioethanol production from lignocellulosic biomass, discusses the most challenging aspects of the process, presents recent technological advances to overcome these challenges and high costs, and explores future perspectives for second-generation biorefineries.
Article
Thermodynamics
Ji Zhang, Brian Elmegaard, Fredrik Haglind
Summary: In this study, tailored prediction methods for flow condensation in plate heat exchangers were developed for the applications in heat pump and organic Rankine cycle systems. A comprehensive experimental investigation was conducted, including 283 data points for pressure drop and heat transfer. New correlations utilizing two dimensionless numbers achieved an improved prediction with mean absolute percentage deviation of 8.9% for heat transfer and 10.3% for pressure drop data.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Ji Zhang, Brian Elmegaard, Fredrik Haglind
Summary: This paper presents an experimental analysis of the flow condensation heat transfer and pressure drop characteristics of zeotropic mixtures in a plate heat exchanger. The study found that heat transfer degradation of the zeotropic mixture increases with decreasing condensation temperature and mass flux.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Physical
Maria E. Mondejar, Maria Regidor, Joerg Krafczyk, Christian Ihmels, Bastian Schmid, Georgios M. Kontogeorgis, Fredrik Haglind
Summary: This paper describes the collection, scope, utility, and development of a comprehensive database of published experimental thermophysical properties of nanofluids. The database includes 307 datasets with 8118 data records covering 13 types of base fluids and 19 nanoparticle types. The first release of the database is accessible for free through the Dortmund Databank.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Green & Sustainable Science & Technology
Nishith B. Desai, Henrik Pranov, Fredrik Haglind
Summary: The use of a micro-structured polymer foil-based concentrating solar collector system offers a cost-effective and low maintenance option for medium-scale dispatchable power and fresh water generation. This system is suitable for complex applications and has great potential to address electricity and water crises effectively.
Article
Chemistry, Applied
Giacomo Butera, Soren H. Jensen, Jesper Ahrenfeldt, Lasse R. Clausen
Summary: Comparison between a novel flexible methanol production unit and two non-flexible units shows that although the flexible solution has a higher capital cost, it ensures a higher capacity factor, potentially giving it a competitive advantage. The study reveals that flexibility becomes relevant when constraints are imposed on the use of electricity from fossil fuels to produce methanol, leading to higher capacity factor and methanol yield.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Thermodynamics
Gianluca Carraro, Roberto Pili, Andrea Lazzaretto, Fredrik Haglind
Summary: The use of organic Rankine cycle systems for waste heat recovery on heavy-duty vehicles is an effective solution to reduce fuel consumption and environmental pollution. The design parameters of a fin-and-tube evaporator in such systems have an impact on the dynamic response, which in turn affects its weight and dampening effects. The study found that increasing the evaporator weight can help dampen the effects of larger heat source fluctuations, with simultaneous variations in the inner diameter of the evaporator tube and tube spacing leading to the highest dampening effect on net power output.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Xiaohui Huang, Ji Zhang, Fredrik Haglind
Summary: This study presents an experimental analysis of high temperature condensation of zeotropic mixtures in a plate heat exchanger. The results show that the R1234ze(E)/R1233zd(E) mixture has higher heat transfer coefficient and frictional pressure drop compared to the R134a/R245fa mixture. A modified model predicts the heat transfer data with good accuracy, and a new pressure drop correlation accurately predicts the pressure drop results.
INTERNATIONAL JOURNAL OF REFRIGERATION
(2022)
Article
Thermodynamics
Roberto Pili, Soren Bojer Jorgensen, Fredrik Haglind
Summary: This paper presents a novel design method for Organic Rankine Cycle systems subject to highly fluctuating heat sources, ensuring safe and efficient operation.
Article
Thermodynamics
Xiaohui Huang, Ji Zhang, Fredrik Haglind
Summary: This study experimentally tested the condensation characteristics of hydrofluoroolefin mixtures in a plate heat exchanger and analyzed the heat transfer and pressure drop. The results showed a decrease in heat transfer coefficient when using hydrofluoroolefin mixtures, and the predicted models can accurately predict the heat transfer and pressure drop data. Additionally, the hydrofluoroolefin mixtures exhibited higher heat transfer coefficient and frictional pressure drop compared to other mixtures with the same temperature glide.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Green & Sustainable Science & Technology
Roberto Pili, Christoph Wieland, Hartmut Spliethoff, Fredrik Haglind
Summary: Organic Rankine cycle systems are the most promising technology for recovering waste heat from heavy-duty vehicles. The highly transient nature of the waste heat is a major challenge for integrating the organic Rankine cycle unit efficiently. This paper presents a novel high-order advanced feedforward control concept to improve the performance of organic Rankine cycle units.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Nishith B. Desai, Maria E. Mondejar, Fredrik Haglind
Summary: This paper presents a techno-economic analysis of a cogeneration plant using a micro-structured polymer foil-based solar collector system. The study compares different energy storage technologies and concludes that packed-bed rock storage is the most suitable option, offering significant cost reduction in electricity and water.
Article
Thermodynamics
Roberto Pili, Christoph Wieland, Hartmut Spliethoff, Fredrik Haglind
Summary: The organic Rankine cycle power system is a promising technology for waste heat recovery in heavy-duty trucks. Model predictive control is an effective tool for safe and optimal operation of the system. This paper presents a systematic method for tuning the controller based on a multi-objective optimization routine and a reduced linear model.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Xiaohui Huang, Ji Zhang, Fredrik Haglind
Summary: This study experimentally investigated high temperature flow boiling of zeotropic mixtures in a plate heat exchanger and developed new heat transfer and pressure drop prediction methods. The results showed that heat transfer was dominated by nucleate boiling and the heat transfer degradation of zeotropic mixtures was up to 42%. The pressure drop characteristics of zeotropic mixtures were similar to pure fluids. Existing methods provided good predictions of heat transfer data and the new heat transfer correlations improved the predictive performance.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Rene Kofler, Lasse Rongaard Clausen
Summary: This study presents the production of DME from wheat straw through gasification, optimizing the process by using two-stage DME synthesis, partial oxidation of the produced gas, and hydrogen quench for high-temperature reverse water gas shift reactions. A systematic analysis of 14 different plant layouts was conducted to investigate the influence of different process steps on carbon efficiency and energy efficiency. The analysis showed that all introduced measures increased carbon efficiency, but also increased net electricity consumption. The highest energy efficiency reached was 57.5%, while the highest carbon efficiency was achieved with the highest net electricity consumption.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Hua Liu, Lasse Rongaard Clausen, Ligang Wang, Ming Chen
Summary: This study investigates the heat balance and degradation process of solid oxide electrolysis cell (SOEC) at the system level, comparing the Levelized Cost of Hydrogen (LCOH) at different locations under three scenarios: heat integration, super grid connection, and SOEC development. It is found that SOEC generates additional ohmic heat and reduces the external heat demand significantly after degradation. Through heat integration, the LCOH is reduced to $3.60 per kg, further lowered to $2.59 per kg with the super grid connection. SOEC development breaks the trade-off between current density and degradation, resulting in an LCOH of $2.18 per kg. By 2035, green hydrogen is expected to achieve an LCOH of $1.40 per kg, surpassing gray hydrogen.
ENERGY & ENVIRONMENTAL SCIENCE
(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)
