Energy Science & Engineering最新文献

{"title":"Energy and Exergy Efficiency Analysis of an Ejector-Expansion Refrigeration Cycle Using the Working Fluid R134a and Its Potential Substitutes","authors":"Xiaoqin Liu,&nbsp;Weibin Wang,&nbsp;Jianyong Wang","doi":"10.1002/ese3.70039","DOIUrl":"https://doi.org/10.1002/ese3.70039","url":null,"abstract":"<p>This paper proposes an ejector-expansion refrigeration cycle (EERC) with two evaporating temperatures to recover partial expansion work and greatly reduces the throttling loss of the other expansion valve connected to the evaporator compared with the conventional bievaporator refrigeration cycle (CBEC). Furthermore, R134a will be phased out due to its high global warming potential, while the mixture refrigerants of R1234yf, R1234ze, and R152a were considered as potential alternatives. The energy and exergy analysis methods are used to evaluate and compare the performance of two cycles and seven kinds of different refrigerants. Results show that the coefficient of performance (COP) and exergy efficiency of EERC are 17.1% and 16.4% higher than those of CBEC, and the total exergy loss can be reduced by 26.1% under given operating conditions. The drop-in analysis is carried out for equal operating conditions, and the EERC performances of mixtures are analyzed. The mixture refrigerants of R1234yf R152a/R1234yf/R1234ze (mass fraction of 0.4/0.3/0.3) and R134a/R1234yf (mass fraction of 0.9/0.1) appear to be a good candidate for drop-in replacement of R134a due to similar COP, volumetric cooling capacity, and exergy efficiency.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 5","pages":"2389-2400"},"PeriodicalIF":3.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reasonable Intake and Exhaust Processes Scheduling of Two-Stroke Free Piston Linear Generator for Intelligent New Energy Vehicles","authors":"Dequan Zeng,&nbsp;Jun Lu,&nbsp;Yiming Hu,&nbsp;Peizhi Zhang,&nbsp;Jinwen Yang,&nbsp;Qin Yu,&nbsp;Xiaoliang Wang","doi":"10.1002/ese3.70042","DOIUrl":"https://doi.org/10.1002/ese3.70042","url":null,"abstract":"<p>Considered a promising power plant offering 25% higher efficiency than conventional reciprocating engines, the free piston linear generator (FPLG) has garnered significant attention due to its breakthrough design that eliminates the crank-connecting rod, thereby achieving enhanced efficiency. However, this structural innovation is a double-edged sword, while having the advantages such as compact structure and short transfer path to reduce energy loss, it inevitably makes the stability of the system sensitive to the operating parameters of the intake and exhaust process, which is extremely easy to lead to instability shutdown or knock. Aiming at scheduling the intake and exhaust processes rationally for system stabilization, a fast numerical method is proposed, which is different from the existing research methods. It does not need to rely on extremely time-consuming and complex CFD models, while taking into account the intake and exhaust processes as a whole rather than treating each as a separate part. The fast numerical method mainly consists of four steps. First, the gas mass variations in-cylinder and in-port due to fuel injection quality are defined. Second, gas flow is established in the valve geometry and operation pressure. Employed gas mass and gas flow, the intake pressure, the exhaust pressure, the allowable duration, and the time consumption would be settled. Third, the total power subsection is used to compute certain fuel quality. Finally, the piston dynamics are applied to calculate piston displacement for objecting valve operation and piston velocity for simulating FPLG output power. The results show that the cyclic fuel injection quality is 42–53 mg for the output power about 12.5 kW, and total efficiency about 35.5%; the intake pressure would be not less than 1.83 atm when the compression ratio is from 8 to 10 and the exhaust pressure ranges from 3.78 to 6 atm.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 5","pages":"2428-2439"},"PeriodicalIF":3.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Systematic Literature Review of Low-Carbon Technology Innovation: 2013–2022","authors":"Yifan Li,&nbsp;Mingmei Sun,&nbsp;Yongxin Huang,&nbsp;Yu Wang,&nbsp;Lihua Ma,&nbsp;Huizhe Yan,&nbsp;Yufei Chen","doi":"10.1002/ese3.70041","DOIUrl":"https://doi.org/10.1002/ese3.70041","url":null,"abstract":"<p>In the process of low-carbon globalization, low-carbon technological innovation has received increasing attention as a key driver of economic decarbonization and low-carbon transition. Despite the self-evident importance of this field, systematic research has yet to be conducted in depth. In this study, bibliometric tools such as CiteSpace and VOSviewer were used to search the relevant literature between 2013 and 2022, covering databases such as Elsevier, Springer, Emerald, Wiley, Nature, and Science, and 27,775 articles with top 30% citation rates were collected. The results of the study show that China has maintained its position as a global leader in the field of research. The results of the study show that while China maintains its position as the world's largest carbon emitter, it also has one of the highest numbers of academic papers in the world, revealing the link between carbon emissions and low-carbon technological innovation. The Beijing Institute of Technology, the Chinese Academy of Sciences, and the International University of Cyprus are the most active institutions in the field, while Renewable and Sustainable Energy Review and Energy Policy are the most cited journals. An analysis of the literature and keywords reveals that the research hotspots in the field include “economic growth”, “financial development” and “economic complexity”, while emerging themes include “Carbon dioxide emissions”, “renewable energy,” and “economic growth.” These trends indicate a growing interest in low-carbon technologies and renewable energy in developing countries. This study not only deepens the understanding of the field, but also provides important guidance for future research.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 5","pages":"2415-2427"},"PeriodicalIF":3.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Study on the Heat Transfer Performance of a Thermal Storage Heating Device","authors":"Chi Zhang,&nbsp;Rongxing Zhou,&nbsp;Guoqing Zhang,&nbsp;Youpeng Chen,&nbsp;Chengzhao Yang","doi":"10.1002/ese3.2082","DOIUrl":"https://doi.org/10.1002/ese3.2082","url":null,"abstract":"<p>Recognizing the challenges faced by electric busses that must utilize a portion of their battery energy to heat the passenger compartment in colder locations, thus reducing their driving range, this work has devised an effective solution to this issue. A compact single-row thermal storage system was designed to fulfill the heating needs of electric busses. Thermal resistance investigation demonstrated that this device provides exceptional insulating efficacy and heat dissipation rate. This study utilizes an aluminum-silicon alloy as the phase transition material for heat storage, with 316 stainless steel as the encapsulating medium. Air serves as the heat exchange medium, and a numerical model has been established. A small-scale experimental apparatus has been established to verify the accuracy of the numerical model. The study offers a comprehensive examination of the flow dynamics of the heat exchange fluid in storage tanks of varying diameters, the solidification pattern of the aluminum-silicon alloy phase change material, and the attributes of temperature distribution. Under equal inlet temperature and flow rate conditions, increased tank diameters lead to prolonged solidification durations for the aluminum-silicon alloy, elevated output temperatures, and a more heterogeneous temperature distribution inside the thermal storage medium. Elevating the inlet temperature in tanks of identical diameter results in increased exit temperatures and extended solidification durations for the aluminum-silicon alloy. Conversely, maintaining a constant intake temperature while augmenting the inlet flow rate reduces the output temperature and decreases the solidification duration of the aluminum-silicon alloy.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 4","pages":"1595-1608"},"PeriodicalIF":3.5,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2082","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Impact of Phase Change Materials on Electricity Consumption in Prefabricated Temporary Houses","authors":"Fatih Selim Bayraktar,&nbsp;Ramazan Köse","doi":"10.1002/ese3.70035","DOIUrl":"https://doi.org/10.1002/ese3.70035","url":null,"abstract":"<p>Following disasters, sheltering displaced populations becomes an immediate and critical concern. Prefabricated temporary housing (PTH) is a widely adopted solution due to its rapid deployment, ease of transportation, and swift assembly. However, their lightweight construction presents a significant drawback in terms of thermal performance. This limitation arises from the inherently low thermal inertia of PTHs, hindering their ability to regulate heat transfer and maintain thermal comfort for occupants. This study investigates the potential of incorporating phase change materials (PCMs) into the inner surfaces of PTHs to improve their thermal inertia and thermal mass properties. By leveraging the latent heat storage capacity of PCMs, the objective is to reduce the reliance on electrical heating/cooling systems, thereby minimizing energy consumption. The effectiveness of PCM integration was evaluated over a 1-month period under winter climate conditions, with electricity consumption serving as the primary metric. According to the results, the incorporation of PCMs led to a reduction in average electricity consumption by 16%, weighted average electricity consumption by 16.2%, and cumulative electricity consumption by 16.6%, achieving significant energy savings.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 5","pages":"2352-2363"},"PeriodicalIF":3.5,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy Optimisation in Aquaponics—Integrating Renewable Source and Water as Energy Buffer for Sustainable Food Production","authors":"Abdul Aziz Channa,&nbsp;Kamran Munir,&nbsp;Mark Hansen,&nbsp;Muhammad Fahim Tariq","doi":"10.1002/ese3.70038","DOIUrl":"https://doi.org/10.1002/ese3.70038","url":null,"abstract":"<p>Aquaponics, a symbiotic integration of aquaculture and hydroponics, has emerged as a promising solution for sustainable food production, offering efficient water and land utilisation. However, the high energy costs associated with maintaining optimal water conditions remain a critical factor in ensuring its long-term viability. While renewable energy sources like solar and wind power can offset the high energy costs, their intermittent nature limits their effectiveness. Batteries, often used as energy buffers during these intermittencies, but introduce additional costs and environmental concerns. This study presents a novel energy optimisation approach for aquaponic systems. We employed a dynamic control algorithm to intelligently adjust water temperature based on solar forecasts. By leveraging system water as a thermal energy buffer, the method reduces reliance on grid power during solar intermittencies, thereby enhancing renewable energy integration. Simulations reveal that this approach can achieve up to 26.9% annual reduction in energy consumption for aquaponic systems compared to conventional methods. This strategy not only decreases energy usage but also highlights the potential for aquaponics to evolve into a more sustainable and cost-effective solution for food production.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 4","pages":"2098-2111"},"PeriodicalIF":3.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70038","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of Wind Speed Extrapolation and Wind Power Density Assessment in Tetouan City","authors":"Houda El Khachine,&nbsp;Mohamed Hatim Ouahabi,&nbsp;Driss Taoukil","doi":"10.1002/ese3.70045","DOIUrl":"https://doi.org/10.1002/ese3.70045","url":null,"abstract":"<p>This study explores vertical wind speed extrapolation methods to evaluate wind energy potential in Tetouan, Morocco. Using wind speed data measured at 40 and 60 m with an Eol2020 mast, six extrapolation models were analyzed to address gaps in the literature. The study compares short- and long-term models, including the Power Law and Modified Justus models, to identify optimal approaches for wind energy assessment. Results demonstrate that the Power Law model provides high accuracy for short-term wind speed predictions, while the Modified Justus model, which incorporates atmospheric stability and surface roughness, excels in long-term extrapolations. By offering a comparative analysis and practical recommendations for model selection, this research contributes to advancing wind energy resource assessment methodologies in Morocco. These findings provide critical insights to support strategic energy planning and enhance the understanding of regional wind energy potential.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 5","pages":"2480-2490"},"PeriodicalIF":3.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical Properties and Energy Characteristics of Shales Under Conventional Triaxial Compression Conditions Based on Different Initial Prestresses","authors":"Yanju Li,&nbsp;Hao Yang,&nbsp;Xiaoqian Yuchi,&nbsp;Shengling Jiang,&nbsp;Rili Yang,&nbsp;Pan Shu,&nbsp;Hui Liu","doi":"10.1002/ese3.70036","DOIUrl":"https://doi.org/10.1002/ese3.70036","url":null,"abstract":"<p>Conventional triaxial compression tests were conducted on shale specimens under varying initial prestress conditions to investigate their mechanical properties and energy evolution characteristics, thereby revealing the shale damage mechanism. The results demonstrate that the peak differential stress of the shale samples increases with the rising initial prestress, following an exponential function. Based on the maximum and minimum principal stress data of the shale samples and the Mohr-Coulomb criterion, the cohesive force and internal friction angle of the tested shale were calculated as 29.86 MPa and 38.92°, respectively. By analyzing the ultimate storage energy of shale samples under different confining pressures, it was found that the ultimate storage energy increases exponentially with confining pressure. Additionally, the dissipated energy at peak stress exhibits a linear relationship with increasing confining pressure. This study provides critical insights into the damage mechanisms of shale under complex stress conditions and offers theoretical support for optimizing shale gas extraction engineering practices. The quantitative relationships between stress, energy evolution, and confining pressure contribute to improving the efficiency and safety of shale reservoir development.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 5","pages":"2364-2374"},"PeriodicalIF":3.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.70036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Enhancement of Thermal and Electrical Efficiency in Concentrator Photovoltaic Modules Using Nanofluid Cooling","authors":"Yasser Elhenawy,&nbsp;Kareem Fouad,&nbsp;Ahmed Refaat,&nbsp;Osama A. Al-Qabandi,&nbsp;Monica Toderaș,&nbsp;Mohamed Bassyouni","doi":"10.1002/ese3.2026","DOIUrl":"https://doi.org/10.1002/ese3.2026","url":null,"abstract":"<p>Electricity production from photovoltaic panels is a clean and promising technology. However, increased panel temperatures resulting from solar intensity notably reduce productivity. Cooling these panels through diverse technologies becomes essential to enhance power generation and extend cell lifetime. In this study, electricity generation for concentrated photovoltaic (CPV) panels was enhanced by cooling with Al₂O₃/water nanofluid. An experimental analysis of the thermal and electrical efficiency of cooled and uncooled CPV was employed. Various loadings (0.3–0.9 wt%) of Al₂O₃ were utilized to investigate the effect of Al₂O₃ on overall performance. Each run was carried out at a flow rate of 1.0 L/min. The results showed that Al₂O₃/water nanofluid at a loading of 0.9 wt% resulted in a significant decrease in photovoltaic surface temperature. The temperature at the surface of CPV was significantly decreased by 52%. The electrical yield reached its maximum at 45 and 46 W/h using CPV without and with cooling water, respectively. The electricity generation was remarkably enhanced up to 54 W/h at 0.9 wt% Al₂O₃/water nanofluid. Electrical and thermal efficiency improved by 21% and 65%, respectively using 0.9 wt% of Al₂O₃. The total daily savings in CO₂ reached 0.35 kg/kW for 0.9 wt%, Al₂O₃.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 4","pages":"1492-1508"},"PeriodicalIF":3.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2026","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance Assessment of an Interconnected Photovoltaic-Thermal System and Solar Thermal Collector: Parametric Study and Optimization","authors":"Maryam Karami,&nbsp;Parisa Heidarnejad","doi":"10.1002/ese3.2065","DOIUrl":"https://doi.org/10.1002/ese3.2065","url":null,"abstract":"<p>In the present study, an interconnected photovoltaic-thermal system and solar thermal collector with half-tubes are presented as a new generation of solar systems to produce maximum thermal and electrical power. Performance comparison of the photovoltaic module, photovoltaic-thermal system, solar thermal collector, and proposed system shows that the maximum power of 1336.27 W is generated by the proposed system. Also, the outlet fluid temperature increases by 28.03% and 20.88% compared to the photovoltaic-thermal systems and solar thermal collectors, respectively, which indicates higher quality of the generated thermal power. To improve the system performance, fins with different heights are used inside the half-tubes. The results indicated that the overall generated power increases using the fin by up to 2.93%. A parametric analysis using response surface method showed that among four parameters including flow rate, incident solar radiation, wind speed, and ambient temperature, the solar radiation and ambient temperature have the most and least impact on the system output, respectively. Also, using the response surface method, two models are provided to predict the electrical and thermal power generation of the system. Single-objective and multi-objective optimization of the system is also investigated using these models.</p>","PeriodicalId":11673,"journal":{"name":"Energy Science & Engineering","volume":"13 4","pages":"1577-1594"},"PeriodicalIF":3.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.2065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}