International Journal of Thermofluids最新文献_第10页

Impact of hall current and rotational on MHD flow of nanofluid with joule heating and viscous dissipation 霍尔电流和旋转对焦耳加热和粘性耗散纳米流体MHD流动的影响

International Journal of Thermofluids Pub Date : 2025-03-03 DOI: 10.1016/j.ijft.2025.101153

Guthula Kanaka Lakshmi, Paramsetti Sri Ramachandra Murty

{"title":"Impact of hall current and rotational on MHD flow of nanofluid with joule heating and viscous dissipation","authors":"Guthula Kanaka Lakshmi, Paramsetti Sri Ramachandra Murty","doi":"10.1016/j.ijft.2025.101153","DOIUrl":"10.1016/j.ijft.2025.101153","url":null,"abstract":"<div><div>This study investigates the influence of Hall current, rotational effects, and thermal diffusion on the transient magnetohydrodynamic (MHD) free convection flow of water-based Cu and TiO₂ nanofluids, incorporating the effects of Joule heating and viscous dissipation. The fluid motion occurs along a permeable vertical plate under an applied magnetic field in a rotating frame of reference. The governing equations, formulated as partial differential equations (PDEs), are transformed into a system of ordinary differential equations (ODEs) using non-dimensionalization techniques and are solved analytically via the perturbation method. The study presents an in-depth analysis of velocity and temperature distributions, as well as the effects of key parameters such as the hall current, rotational force, thermal radiation and suction parameter. Results indicate that an increase in the Hall parameter enhances the velocity of the primary flow but decreases secondary velocity. The velocity profile also increases with higher thermal Grashof number, while a rise in the magnetic field strength retards fluid motion due to Lorentz force effects. The temperature profile decreases with increasing Prandtl number and heat source intensity. These findings provide valuable insights into the behavior of nanofluid flow in MHD environments and have potential applications in energy systems, cooling technologies, and electronic thermal management.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"27 ","pages":"Article 101153"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating the combinations of operating parameters of PEMFC computational results using the Taguchi Method 利用田口法研究了PEMFC运行参数组合的计算结果

International Journal of Thermofluids Pub Date : 2025-03-03 DOI: 10.1016/j.ijft.2025.101162

Prem Kumar Thiyagarajan , Nithesh Kumble Gokuldas , Srinivasa G , Avinash Kumar Rajendran , Kavin Selvan Saravanakumar , Mohanaharish Vasudevan , Mohith Kannan , C. Durga Prasad , Adem Abdirkadir Aden

{"title":"Investigating the combinations of operating parameters of PEMFC computational results using the Taguchi Method","authors":"Prem Kumar Thiyagarajan , Nithesh Kumble Gokuldas , Srinivasa G , Avinash Kumar Rajendran , Kavin Selvan Saravanakumar , Mohanaharish Vasudevan , Mohith Kannan , C. Durga Prasad , Adem Abdirkadir Aden","doi":"10.1016/j.ijft.2025.101162","DOIUrl":"10.1016/j.ijft.2025.101162","url":null,"abstract":"<div><div>Proton Exchange Membrane Fuel Cells (PEMFC) is considered a promising energy source due to higher energy efficiency, low pollution, fast startup time, and low operating temperature. Under simplified conditions of constant temperature and one-dimensional flow, through the channel, and zero-flux boundaries the model was solved. The model was validated using COMSOL Multiphysics software and experimental results with a 4.22 % and 5.5 % deviation. The Taguchi Method was used to study the operating parameters of PEMFCs and to identify optimal combinations for best output along with developing equations to predict maximum power density. The delta i.e. the difference between the mean of high- and low-level Signal to Noise (S/N) ratios was calculated and found that the relative humidity was significant with value 11.07. The optimum combination is found with the help of the S/N ratio graph based on the larger the better for the performance application. The maximum power density value was predicted using the equation and found to be deviated by 16.5 % with the help of an L8 orthogonal array. Modified Taguchi approach with L4 orthogonal array with a fixed level of higher derivation parameter, reduced the error deviation further to 6.5 % with respect to the simulation results. The approach will be handy for predicting the performance with fewer trials.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"27 ","pages":"Article 101162"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis and prediction of thermo-physical properties in water-based MWCNT-ZnO hybrid nanofluids using ANN and ANFIS models 基于ANN和ANFIS模型的水基MWCNT-ZnO混合纳米流体热物性分析与预测

International Journal of Thermofluids Pub Date : 2025-03-02 DOI: 10.1016/j.ijft.2025.101159

Surendra D. Barewar , Pritam S. Kalos , Balaji Bakthavatchalam , Mahesh Joshi , Sarika Patil , Mahesh Sonekar

{"title":"Analysis and prediction of thermo-physical properties in water-based MWCNT-ZnO hybrid nanofluids using ANN and ANFIS models","authors":"Surendra D. Barewar , Pritam S. Kalos , Balaji Bakthavatchalam , Mahesh Joshi , Sarika Patil , Mahesh Sonekar","doi":"10.1016/j.ijft.2025.101159","DOIUrl":"10.1016/j.ijft.2025.101159","url":null,"abstract":"<div><div>In this study, the thermal conductivity and viscosity of multiwalled-carbon nanotubes/zinc oxide water hybrid nanofluid across volume concentrations varying from 0.2 % to 0.8 % and temperatures from 25 °C to 65 °C were experimentally studied. Three mathematical models such as multivariable regression, artificial neural network, and adaptive neuro-fuzzy modeling were employed for the prediction of the thermal conductivity of the water baes multiwalled-carbon nanotubes/zinc oxide hybrid nanofluid. Volume concentration and temperature of the nanofluid are the input parameters for the models. Despite the complexity of the input data, which encompassed extensive ranges of temperature and volume concentration, adaptive neuro-fuzzy modeling exhibited superior predictive performance than the other two models. It achieved conductivity values closely aligned with experimental results, characterized by the lowest mean square error compared to regression and artificial neural network models. Notably, the adaptive neuro-fuzzy modeling method facilitated the resolution of the neural network layer's hidden structure without the need for extensive trial and error.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"27 ","pages":"Article 101159"},"PeriodicalIF":0.0,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

AI-heat transfer analysis of casson fluid in uniformly heated enclosure with semi heated baffle 半加热挡板均匀加热箱体中卡森流体的ai传热分析

International Journal of Thermofluids Pub Date : 2025-03-01 DOI: 10.1016/j.ijft.2025.101148

Khalil Ur Rehman , Wasfi Shatanawi , Lok Yian Yian

{"title":"AI-heat transfer analysis of casson fluid in uniformly heated enclosure with semi heated baffle","authors":"Khalil Ur Rehman , Wasfi Shatanawi , Lok Yian Yian","doi":"10.1016/j.ijft.2025.101148","DOIUrl":"10.1016/j.ijft.2025.101148","url":null,"abstract":"<div><div>The heat transfer in Casson fluid with natural convection claims various applications namely thermal regulation in biological systems, solar collectors, polymer processing, and geothermal applications to mention just a few. Owing to such motivation, we have offered artificial intelligence-based solution outcomes for heat transfer aspects in Casson fluid flow in a partially heated square enclosure with free convection effect. The semi-heated triangular baffle is installed at the center of the cavity. The bottom and right walls have the same amount of heat. The left wall of the cavity is taken cold and the top wall is taken insulated. The surface of triangular baffle and cavity walls are carried with non-slip condition. Finite element method (FEM) with hybrid meshing is used to solve the developed flow equations. AI-based neural networks model is used to examine the variation in Nusselt number for the involved flow parameters. MSE=2.15008e<sup>-6</sup>, 5.81476e<sup>-5</sup>, and 3.51888e<sup>-4</sup> for training, validation, and testing respectively, suggesting good model performance on Nusselt number data along the bottom and vertical walls. We have observed that the heat transfer coefficient improves as Rayleigh and Prandtl numbers increase. We believe that the present AI-based outcomes will be helpful for predicting natural convection phenomena subject to thermal engineering standpoints.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"26 ","pages":"Article 101148"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioconvective triple diffusion flow of micropolar nanofluid with suction effects and convective boundary conditions 具有吸力效应和对流边界条件的微极纳米流体生物对流三重扩散流动

International Journal of Thermofluids Pub Date : 2025-03-01 DOI: 10.1016/j.ijft.2025.101138

Muhammad Bilal Riaz , Kamel Al-Khaled , Adnan , Sami Ullah Khan , Katta Ramesh

{"title":"Bioconvective triple diffusion flow of micropolar nanofluid with suction effects and convective boundary conditions","authors":"Muhammad Bilal Riaz , Kamel Al-Khaled , Adnan , Sami Ullah Khan , Katta Ramesh","doi":"10.1016/j.ijft.2025.101138","DOIUrl":"10.1016/j.ijft.2025.101138","url":null,"abstract":"<div><div>This investigation reveals the triple diffusive bioconvective applications subject to micropolar nanofluid flow caused by oscillating stretched surface. The problem is subject to applications of radiative phenomenon and viscous dissipation features. In oscillating stretching surface, the porous medium and suction/injection features are considered. The modeling of flow problem is based on system of partial differential equations (PDE's). Such system is solved with implementation of homotopy analysis method (HAM). The convergence region is specified against HAM solution. Understanding of flow problem is observed by vary various flow parameters to evaluates the fluid velocity, micro-rotational velocity, temperature field, solutal concentration, nanoparticles concentration and microorganisms profile. The results for skin friction, Nusselt number, solutal Sherwood number, nano-Sherwood number and microorganism's density number are also presented. It has been observed that variation of velocity against time periodically oscillates and magnitude of oscillation declined due to porous parameter and suction/injection constant. The temperature profile enhances due to modified Dufour number and Eckert parameter. Moreover, the solutal concentration reduces due to regular Lewis number.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"26 ","pages":"Article 101138"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soret and nonuniform heat source/sink effects in micropolar nanofluid flow over an inclined stretching sheet 微极性纳米流体在倾斜拉伸薄片上流动的非均匀热源/汇效应

International Journal of Thermofluids Pub Date : 2025-03-01 DOI: 10.1016/j.ijft.2025.101160

Machindranath Diwate , Pradeep G. Janthe , Nitiraj V. Kulkarni , S. Sunitha , Jagadish V. Tawade , Nodira Nazarova , Manish Gupta , Nadia Batool

{"title":"Soret and nonuniform heat source/sink effects in micropolar nanofluid flow over an inclined stretching sheet","authors":"Machindranath Diwate , Pradeep G. Janthe , Nitiraj V. Kulkarni , S. Sunitha , Jagadish V. Tawade , Nodira Nazarova , Manish Gupta , Nadia Batool","doi":"10.1016/j.ijft.2025.101160","DOIUrl":"10.1016/j.ijft.2025.101160","url":null,"abstract":"<div><div>This study investigates the heat and mass transfer dynamics of micropolar nanofluid flow over a stretching sheet subjected to nonuniform heat sources/sinks. The influence of key factors, such as Brownian motion, thermophoresis, chemical reactions, and thermal radiation, on the velocity, temperature, and concentration profiles of the nanofluid is explored. The research employs advanced numerical methods, using the <em>bvp4c</em> solver, to solve the governing equations and compute the effects of various physical parameters on fluid dynamics. The results demonstrate that an increase in the magnetic field strength reduces the fluid velocity, while changes in material properties can lead to higher fluid speeds. Furthermore, the Soret effect significantly enhances mass transfer and the heat transfer at the surface diminishes as <em>A*</em> and <em>B*</em> increases, with implications for applications in separation technologies and desalination. A detailed analysis of the influence of the Soret number, Brownian motion, and thermophoresis reveals critical insights into thermal transport and solute distribution in the boundary layer. These findings have practical applications in cooling systems, biomedical engineering, and other industries where precise control of heat and mass transfer is crucial.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"27 ","pages":"Article 101160"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143636686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving the thermal performance of a windcatcher employing cooling pipes with annular fins: Numerical evaluation 采用环形翅片冷却管改善捕风器的热性能：数值评估

International Journal of Thermofluids Pub Date : 2025-03-01 DOI: 10.1016/j.ijft.2025.101110

Habibollah Ranjbarvavdareh, Vahid Shokri, Yasser Rostamiyan

{"title":"Improving the thermal performance of a windcatcher employing cooling pipes with annular fins: Numerical evaluation","authors":"Habibollah Ranjbarvavdareh, Vahid Shokri, Yasser Rostamiyan","doi":"10.1016/j.ijft.2025.101110","DOIUrl":"10.1016/j.ijft.2025.101110","url":null,"abstract":"<div><div>To improve the thermal performance of a windcatcher, the current work employs three cooling pipes with radial fins as the heat transfer device (HTD) at its entrance. The proposed windcatcher's heat transfer and fluid flow are numerically investigated using commercial computational fluid dynamics software. The effects of geometric parameters of the used HTD, such as (i) the number of radial fins and (ii) the diameter of the radial fins, on the thermal performance of the proposed windcatcher are studied. The current study is unique in that it applies an efficient heat transfer enhancement technique—extended surfaces or fins—to windcatchers' HTD, which previous studies have not investigated. The examination of the effect of radial fins on the performance of the windcatcher, based on various fin diameters and numbers, shows that fins' presence and size significantly impact air velocity and temperature distribution within the system. Results depicted that using radial fins inside windcatchers improves airflow efficiency and thermal performance. The best configuration for airflow lies with the 220 mm fins, while the 300 mm fins show the best cooling effect. Accordingly, the inlet temperature of the models with 220 mm, 260 mm, and 300 mm fins is greater than the simple model (without fin case) by about 4.88 %, 5.69 %, and 8.13 %, respectively. Moreover, the inlet temperature of the models with three, four, and five fins is superior to the simple model by about 4.86 %, 6.88 %, and 8.1 %, respectively. These findings suggest that careful selection of fin size and number is critical for maximizing windcatchers' performance in terms of ventilation and cooling. The insights gained from these results can guide the design of more efficient windcatcher systems for sustainable building applications.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"26 ","pages":"Article 101110"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parametric enviro-economic analysis of cooling photovoltaic panels with phase change materials 相变材料冷却光伏板的参数环境经济分析

International Journal of Thermofluids Pub Date : 2025-03-01 DOI: 10.1016/j.ijft.2025.101151

Tarek Ibrahim , Jalal Faraj , Hicham El Hage , Rani Taher , Samer Ali , Mahmoud Khaled

{"title":"Parametric enviro-economic analysis of cooling photovoltaic panels with phase change materials","authors":"Tarek Ibrahim , Jalal Faraj , Hicham El Hage , Rani Taher , Samer Ali , Mahmoud Khaled","doi":"10.1016/j.ijft.2025.101151","DOIUrl":"10.1016/j.ijft.2025.101151","url":null,"abstract":"<div><div>This study conducts a parametric analysis to evaluate the effects of cooling PV panels using phase change materials (PCM), considering both economic and environmental aspects for two cases: a domestic house and a power plant. The study employs the consumption ratio (R), defined as the ratio between the actual energy consumption of a building and the maximum energy producible by the PV panels, as an indicator of energy use efficiency. Results show that the combined PCM-PV with heat sink (CPCM-PV-HS) system achieved the highest performance, with average energy production values of 634.35 × <em>R</em> kWh and 132,182.7 × <em>R</em> kWh for the domestic house and power plant, respectively. Corresponding economic savings were $272.77 × <em>R</em> and $56,838.57 × <em>R</em>, while reductions in CO₂ emissions averaged 367.92 × <em>R</em> kg and 76,665.97 × <em>R</em> kg The PV panel with PCM (PV-PCM) cooling method recorded the lowest values across all metrics. Additionally, a linear relationship was observed between efficiency enhancements and both savings and CO₂ reductions over the months of the year. This study underscores the potential of PCM-based cooling systems to improve PV panel performance, providing valuable insights for energy efficiency, cost savings, and environmental sustainability.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"27 ","pages":"Article 101151"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Editorial: Advances in heat transfer science: Enhanced techniques for modern industrial applications 社论：传热科学的进展：现代工业应用的强化技术

International Journal of Thermofluids Pub Date : 2025-03-01 DOI: 10.1016/j.ijft.2025.101145

Ali Alahmer , Ahmed Al-Manea , Raed Al-Rbaihat , Salman Ajib , Khalid Saleh , Adanta Dendy

{"title":"Editorial: Advances in heat transfer science: Enhanced techniques for modern industrial applications","authors":"Ali Alahmer , Ahmed Al-Manea , Raed Al-Rbaihat , Salman Ajib , Khalid Saleh , Adanta Dendy","doi":"10.1016/j.ijft.2025.101145","DOIUrl":"10.1016/j.ijft.2025.101145","url":null,"abstract":"<div><div>Heat transfer science plays a fundamental role in various industrial sectors, including energy generation, electronics cooling, and aerospace engineering. As industries advance, the need for more efficient, sustainable, and innovative heat transfer solutions becomes increasingly vital. This special issue, Advances in Heat Transfer Science: Enhanced Techniques for Modern Industrial Applications, presents cutting-edge research on innovative heat transfer solutions, focusing on nanofluids, phase change materials (PCMs), solar energy systems, heat exchangers, and computational modeling. Contributions highlight the use of nanofluids and hybrid nanofluids to enhance thermal performance in various geometries, the integration of PCMs for thermal energy storage, and the optimization of solar energy systems through advanced cooling techniques. Additionally, studies on heat exchangers, thermal management systems, and computational fluid dynamics (CFD) provide insights into geometric modifications, passive and active cooling methods, and numerical modeling for improved thermal performance. By exploring the interplay of magnetic fields, fluid dynamics, and geometric configurations, this issue offers a comprehensive overview of the latest advancements in heat transfer science, paving the way for more efficient, sustainable, and innovative industrial applications.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"26 ","pages":"Article 101145"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photothermal analysis of novel nanoparticles-laden fluid-based solar thermal receiver: A proof-of-concept experimental study 新型纳米颗粒负载流体太阳能热接收器的光热分析：概念验证实验研究

International Journal of Thermofluids Pub Date : 2025-02-28 DOI: 10.1016/j.ijft.2025.101158

J.S.D. Nandini , Vishal Bhalla , Himanshu Tyagi

{"title":"Photothermal analysis of novel nanoparticles-laden fluid-based solar thermal receiver: A proof-of-concept experimental study","authors":"J.S.D. Nandini , Vishal Bhalla , Himanshu Tyagi","doi":"10.1016/j.ijft.2025.101158","DOIUrl":"10.1016/j.ijft.2025.101158","url":null,"abstract":"<div><div>Excessive extraction of fossil fuels leads to air pollution, water pollution, destruction of habitat, etc., which are some of the severe environmental consequences. Directing towards renewable energy sources like solar and wind energy helps to attenuate these impacts and promote a purified, healthier environment for future generations. Solar energy is infinitely available and used for present and future energy needs. Thus, by utilizing this power, we can mitigate the carbon footprint, greenhouse gas (GHG) emissions, etc., which helps to build a secure, clean energy future. This experimental study compared the photo-thermal effects of surface absorption and nanoparticle-laden systems on the moving flow characteristics of the nanoparticle-laden fluid in a novel spiral solar collector. The influence of channel depth (10 and 20 mm) and volume flow rate on temperature rise has been investigated in this experimental investigation, and it has been discovered that the nanoparticle mass fraction (optimum mass fraction of the nanoparticles) relies on channel depth. Experimental results show that for optical depth of 10 mm, a temperature rise of 11.4 °C is obtained at the optimum mass fraction of 40 mg/L, and compared to this, at the optical depth of 20 mm, a temperature rise of 6.7 °C has been achieved at the optimum mass fraction of 10 mg/L. After evaluating the influence of volume flow rate (25–200 mL/hr), a maximum temperature rise of 11.2 °C was obtained at 25 mL/hr. In all cases, the temperature rise in the N-VAS (Nanoparticle-laden volumetric absorption-based system) is more significant than S-BAS (Surface-based absorption system), indicating that the presence of nanoparticles results in a higher heat transfer rate by absorbing more radiation from the heat source.</div></div>","PeriodicalId":36341,"journal":{"name":"International Journal of Thermofluids","volume":"27 ","pages":"Article 101158"},"PeriodicalIF":0.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143576851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0