Thermal Science and Engineering Progress最新文献

{"title":"Comparative study of heat and mass recovery in activated carbon-ammonia physisorption cooling cycles: a novel analytical approach","authors":"Alok Dubey ,&nbsp;Narender Kumar ,&nbsp;Sulaiman Isha ,&nbsp;Hardik Kothadia ,&nbsp;Prodyut R. Chakraborty","doi":"10.1016/j.tsep.2025.103671","DOIUrl":"10.1016/j.tsep.2025.103671","url":null,"abstract":"<div><div>The work described in this manuscript involves systematic analysis of four types of basic and advanced thermodynamic cycles for two-bed continuous adsorption cooling system with activated carbon-ammonia as the working pair. The four cycles under consideration are Basic cycle, Mass recovery cycle (MRC), Heat recovery cycle (HRC), Combined heat and mass recovery cycle (CHMRC). Using ammonia as the refrigerant allow us to build a pressurized system, and greater level of compactness of the system might be achieved as compared to water, ethanol and methanol-based adsorption cooling systems operating under vacuum condition. The usage of ammonia as refrigerant also allows the recovery of high-grade waste heat from exhaust gases coming out of large automobiles having temperature range of 250–500 °C. Three most important performance parameters associated with adsorption cooling, namely: COP, SCE and second law efficiency are evaluated and compared against five control parameters, namely: maximum desorption temperature, minimum adsorption temperature, condensation temperature, evaporation temperature and heat capacity ratio between bed construction material and adsorbent. A simple yet novel iterative scheme is proposed and developed in detail to estimate the equilibrium pressure and associated thermal and compositional states of the two beds after the completion of highly irreversible mass recovery process.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103671"},"PeriodicalIF":5.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of thermal radiation and dissipation effects on MHD Prandtl hybrid nanofluid flow past an exponential stretched porous device","authors":"Parshuram S. Mane ,&nbsp;Vishwambhar S. Patil ,&nbsp;Amar B. Patil ,&nbsp;Pooja P. Humane ,&nbsp;Ishwar Maharudrappa ,&nbsp;G.C. Sankad","doi":"10.1016/j.tsep.2025.103677","DOIUrl":"10.1016/j.tsep.2025.103677","url":null,"abstract":"<div><div>Fluid dynamics requires a comprehensive understanding of energy dissipation, heat and mass transfer phenomena, since it directly impacts thermal efficiency, flow stability, and energy conservation in various industrial and engineering applications. With this motivation, the present study investigates the magnetized flow of Prandtl mixed hybrid nanofluids across an exponentially stretched surface. The hybrid nanofluid is formed with nanoparticles of Titanium oxide (TiO₂) and Copper (Cu) in water as the base fluid. The governing set of equations is formulated as an extension of the Prandtl fluid model to investigate the physical effects of chemical processes, heat radiation, bioconvection, and energy dissipation. The nonlinear ordinary differential equations are derived after successfully implementing appropriate transformations on governing equations and are solved numerically via the Differential Transform Method (DTM). The graphical illustration of non-dimensional velocity, temperature, and concentration is obtained through MATLAB and discussed with proper physical justification for various terms such as magnetic parameter, chemical reaction, radiation parameter, Sherwood number, Nusselt number, and friction parameter. The outcomes are validated with a comparison of previous published work. Results reveal that hybrid nanofluids significantly enhance heat transfer efficiency compared to conventional nanofluids. Increasing the Eckert and Biot numbers raises temperature, while a stronger magnetic field reduces fluid velocity. Increasing magnetic parameter reduces velocity by 42 % (NF) and 37.5 % (HNF), while increasing Eckert number raises temperature by 67 % (NF) and 53 % (HNF), highlighting strong magnetic and viscous dissipation effects. The findings of this study have significant applications in oil extraction, heat exchanger optimization, and MHD propulsion systems, where energy dissipation and thermal radiation play a crucial role.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103677"},"PeriodicalIF":5.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat and mass transport on ciliated walls of a curved heated channel driven by metachronal waves in micropolar fluids under the influence of viscous dissipation","authors":"Saleh Chebaane ,&nbsp;A.F. Isarinade ,&nbsp;A.M. Obalalu ,&nbsp;A.Wahab Hussein ,&nbsp;Arwa Azhary","doi":"10.1016/j.tsep.2025.103674","DOIUrl":"10.1016/j.tsep.2025.103674","url":null,"abstract":"<div><div>This study investigates the heat and mass transport characteristics in micropolar fluids confined within a curved heated channel with ciliated walls, driven by metachronal wave-induced motion. This study focuses on examining how viscous dissipation influences the transport of an electroconductive micropolar fluid driven by cilia in a curved channel with a geometry shaped like a metachronal wave. The wave patterns are designed to maintain a consistent distribution of temperature and concentration along both walls. Governing equations account for the effects of viscous dissipation along with Soret and Dufour effects which play key roles in thermal and solutal transport processes. The influences of Brinkman number, magnetic field, and coupling number are also considered. The lubrication approximation forms the basis for problem formulation which is then numerically solved with the Chebyshev collocation scheme. The findings indicated that the axial velocity diminishes as the micropolar parameter, curvature parameter, and magnetic field strength increase. However, the coupling number notably contributes to a significant rise in axial velocity. The results provide important insights for biological and industrial systems where small-scale fluid flow and energy loss play a key role, such as in cilia-driven transport, lab-on-chip devices, and cooling systems.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"63 ","pages":"Article 103674"},"PeriodicalIF":5.1,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Absorption-based heat pumps for decarbonization of industrial process heating: performance, current status, and new developments","authors":"Dereje S. Ayou ,&nbsp;Wei Wu ,&nbsp;Alberto Coronas","doi":"10.1016/j.tsep.2025.103679","DOIUrl":"10.1016/j.tsep.2025.103679","url":null,"abstract":"<div><div>In industry, there is a huge demand for process heat to produce, process, or finish products. Industrial process heat originates mainly from the combustion of fossil fuels, so industries need to use sustainable heat supplies if they are to reduce their carbon footprints. In this context, absorption-based heat pumps can offer a viable solution to mitigating the environmental impact of industrial heat consumption. This article reviews and discusses the state of the art of three types of absorption-based heat pumps for industrial heating applications (≥80 °C): absorption-compression heat pumps, absorption heat pumps (Type I heat pumps), and absorption heat transformers (Type II heat pumps). The water/LiBr Type I heat pump technologies currently available are restricted to a maximum heat supply temperature of 100 °C and a temperature lift up to 50 °C with thermal COPs of 1.65–1.80. The water/LiBr Type II heat pumps have a maximum heat supply temperature of 185 °C and a temperature lift of up to 50 °C with thermal COPs of 0.33–0.48. The ammonia/water absorption-compression heat pumps have a maximum heat supply temperature of 160 °C and a temperature lift of up to 110 °C with electrical COPs of 2.7–7.3. However, to fully exploit the potential of these heat pumps in process industries, research and development should focus on increasing heat supply temperature and temperature lift beyond the current limits. The use of these heat pumps to recover industrial waste heat will make a considerable contribution to the decarbonisation of the process industries.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103679"},"PeriodicalIF":5.1,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-objective optimization of a solar-assisted cogeneration system in hot climate: An exergoeconomic and exergoenvironmental assessment","authors":"Hassan Hajabdollahi,&nbsp;Amin Saleh,&nbsp;Naser Kavousi Yadollahi","doi":"10.1016/j.tsep.2025.103656","DOIUrl":"10.1016/j.tsep.2025.103656","url":null,"abstract":"<div><div>The research investigated a solar-fossil fuel cogeneration system designed to generate power, freshwater, and hydrogen and oxygen in a hot climate. The system comprises multiple components, including the Brayton cycle, heat recovery steam generator, steam turbine, parabolic trough collectors, desalination unit, organic Rankine cycle, and a polymer electrolyte membrane electrolyzer. The optimization approach employed the NSGA-II, aiming to maximize exergy efficiency while minimizing total annual cost. Comprehensive analyses, including energy, exergy, economic, environmental, exergoeconomic, and exergoenvironmental assessments, were conducted. The optimal results indicated that exergy efficiency improved with higher gas turbine inlet temperatures and air compressor pressure ratios, but declined with increasing solar water fractions. Exergoeconomic and exergoenvironmental analyses identified that DB as having the highest exergy destruction cost rate, while the CC exhibited the largest exergy destruction ecological impact rate. In contrast, the solar field demonstrated the lowest cost rate of exergy destruction and minimal ecological impact. The production costs for power, freshwater, and hydrogen–oxygen were determined to be 0.0378 $/kWh, 2.2346 $/<span><math><msup><mrow><mtext>m</mtext></mrow><mtext>3</mtext></msup></math></span>, and 4.0139 $/kg, respectively. The corresponding ecological impact rates were 0.0206 Pts/kWh, 0.7447 Pts/<span><math><msup><mrow><mtext>m</mtext></mrow><mtext>3</mtext></msup></math></span>, and 1.2249 Pts/kg. These findings provide a thorough overview of the system’s performance and optimization from multiple perspectives, highlighting its economic and environmental viability.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103656"},"PeriodicalIF":5.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation into a new steam ejector with several entrainment channels for energy utilization improvement","authors":"Dongjun Guo ,&nbsp;Jianbo Wang ,&nbsp;Zhisong Zhu ,&nbsp;Linfei Chen","doi":"10.1016/j.tsep.2025.103667","DOIUrl":"10.1016/j.tsep.2025.103667","url":null,"abstract":"<div><div>As an important energy conversion device, steam ejector is a widely used energy-saving technology. To fully utilize the large pressure difference between the low-pressure region and the entrainment fluid entrance, a new ejector with added entrainment channels is developed, so that more entrainment fluid is sucked in the ejector from the added entrainment channels, and to promote the entrainment capacity of the ejector. Three geometrical models of the ejector were established, and the numerical analysis was calculated. Under the condition of different compression ratio and expansion ratio, the entrainment capacity of the ejector with different number of entrainment channels was analyzed and discussed. The results show that with the increase of entrainment channels, reduction of the compression ratio can effectively increase the entrainment ratio and reduce the critical compression ratio, but the optimal expansion ratio decreases, and the less primary fluids is consumed and more entrainment fluids are sucked. Thus, the purpose of reducing energy consumption and effectively heightening the entrainment capacity can be achieved. Compared to a traditional ejector, The entrainment capacity of the ejector with two or three or four entrainment channels increased by 69.98%, 170.7% and 272.29%, respectively. Therefore, by adding the entrainment channels, the entrainment capacity of the ejector is greatly promoted, the production efficiency and energy utilization are improved, and the energy consumption is reduced.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103667"},"PeriodicalIF":5.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient atmospheric water generation using mechanical vapor compression: An improved system for sustainable freshwater production","authors":"M.A.M. Ahmed ,&nbsp;Ridha Ben Mansour ,&nbsp;Mohammad R. Shakeel ,&nbsp;Syed M. Zubair","doi":"10.1016/j.tsep.2025.103637","DOIUrl":"10.1016/j.tsep.2025.103637","url":null,"abstract":"<div><div>This study addresses the global freshwater scarcity challenge by introducing an energy-efficient atmospheric water generation system that employs a desiccant-based moisture extraction process coupled with a mechanical vapor compression cycle. A thermodynamic model is developed and evaluated across a range of operating conditions, accounting for key parameters such as desiccant and air mass flow rates, ambient environmental factors, and the thermophysical properties of the desiccant. The proposed approach offers a scalable and environmentally sustainable solution, contributing to the advancement of modern water resource management technologies. The proposed system achieves up to 60 % lower specific energy consumption than conventional humidification dehumidification-based atmospheric water generator systems. Optimal performance occurs at a desiccant-to-air mass flow ratio of 4, with diminishing returns beyond this point. The proposed system operates at 8.78 kWh/m³ with compact heat transfer areas: 2.73 m² (evaporator), 0.63 m² (brine preheater), and 0.14 m² (distillate preheater).</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103637"},"PeriodicalIF":5.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of obstacle blockage on flame propagation, overpressure and local temperature of vapor deflagration in narrow ship channel-like space","authors":"Yulun Zhang ,&nbsp;Han Gao ,&nbsp;Shaohua Mao ,&nbsp;Xiaolong Zhao ,&nbsp;Yongdiao Zhou ,&nbsp;Congshuo Yang ,&nbsp;Yunhe Tong","doi":"10.1016/j.tsep.2025.103655","DOIUrl":"10.1016/j.tsep.2025.103655","url":null,"abstract":"<div><div>A special study mainly concerning the influence of blockage ratio on flame propagation, overpressure and local temperature distribution characteristic of combustible vapor deflagration in narrow channel of ship was conducted. Rectangular obstacles with 30∼55 % blockage ratio were tested. The flame propagation, overpressure and local temperature were recorded and analyzed. Results indicated that obstacle edges have obvious shear action to flame front, which the front structure and surface area would be obviously stretched. The presence of obstacles could enhance the turbulence intensity of local fluid and induce more turbulent flame, leading to a significantly increased propagation speed. In current tests, flame propagation speed increased firstly and then decreased with the blockage ratio, and the maximum flame speed could reach 97.5 m/s. Overpressure also performs a non-monotonous variation, which could be attributed to the fact that obstacles can not only positively stimulate the deflagration by enhancing local turbulence intensity, but also have an obstructing effect on the propagation of flame and pressure wave. This means, there is a critical blockage ratio, at which the overpressure is maximized, and this critical value is found to be around 40 % in current experimental conditions. Meanwhile, the propagation of deflagration overpressure and flame involved the obvious coupling effect, and the overpressure and flame reached peaks almost simultaneously. This work is expected to provide some basic references for the emergency disposal of combustible liquid vapor deflagration accidents.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103655"},"PeriodicalIF":5.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143928986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of moon base energy system integrated cooling and electrical energy supply: Working fluid selection and full-day energy analysis","authors":"Zekuan Liu ,&nbsp;Yilei Li ,&nbsp;Youzi Wang ,&nbsp;Shiyi Xu ,&nbsp;Teng Fei ,&nbsp;Jiang Qin","doi":"10.1016/j.tsep.2025.103658","DOIUrl":"10.1016/j.tsep.2025.103658","url":null,"abstract":"<div><div>On the moon base, a sufficient energy supply is crucial for the normal operation of equipment. The surface temperature on the lunar day can reach as high as 390 K, providing cooling energy during the lunar day is a prerequisite for the long-term survival of humans on the Moon. Therefore, in response to the demands for cooling and electricity, this paper proposes a closed Brayton cycle (CBC) – organic Rankine cycle (ORC) – vapor compression refrigeration (VCR) system and establishes its mathematical model. The working fluids of the ORC – VCR are screened to obtain the power – generation and refrigeration capabilities. Toluene is selected as the best working fluid because it has higher ORC thermal efficiency and coefficient of performance (COP) under the condition of ensuring a relatively small radiator area. During the lunar day, the power of the ORC reaches a maximum value of 24.36 kW at noon. During the lunar night, as the temperature of the thermal energy storage system (TES) decreases, the power generation of the ORC increases, and the energy conversion efficiency also improves. This compensates for the performance decline of the CBC to a certain extent, but cannot completely reverse the weakening trend of the overall performance.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103658"},"PeriodicalIF":5.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Absorption of thermal radiation by a water-based spray curtain","authors":"D.V. Antonov ,&nbsp;R.M. Fedorenko ,&nbsp;R.S. Volkov ,&nbsp;P.A. Strizhak","doi":"10.1016/j.tsep.2025.103657","DOIUrl":"10.1016/j.tsep.2025.103657","url":null,"abstract":"<div><div>This article presents the results of experimental studies on the absorption of thermal radiation from an open flame by a water-based spray curtain. Two typical applications were simulated: the thermal purification of water from insoluble impurities and the thermal protection of objects from open flames. Mathematical processing and generalization of experimental data led to the development of prediction equations for estimating the required thickness of the spray curtain and concentration of solid particles in the water necessary to effectively reduce heat from the radiation source. The influence of the geometric dimensions of the curtain, speed, size, and volume concentration of droplets in the aerosol cloud, as well as the addition of solid impurities on the characteristics of thermal radiation absorption by the spray curtain has been established. It has been established that an increase in the lateral size of the aerosol flow to 0.1–0.3 m reduces the density of the radiant heat flux by 28–45 %, while bentonite slurry, which reduces the radiant heat flux by up to 20 %, is the most effective additive for thermal radiation absorption by a spray. Based on the results of the analysis of the experimental data, a mathematical model is developed for predicting optimal heat and mass transfer conditions. Using this model, a parametric study is performed that makes it possible to establish the necessary input parameters for intensifying the heat transfer of spray droplets with different contents of solid particles and thermal radiation.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"62 ","pages":"Article 103657"},"PeriodicalIF":5.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}