Journal of Thermal Analysis and Calorimetry最新文献

{"title":"Preparation and investigation on multi-temperature silica/octadecane phase change materials","authors":"Qingyi Chen,&nbsp;Meijie Qu,&nbsp;Shuhui Li,&nbsp;Hai Wang,&nbsp;Ping Tang,&nbsp;Yue Ma,&nbsp;Rui Zhang,&nbsp;Hongru Wang,&nbsp;Yuezhen Bin","doi":"10.1007/s10973-024-13912-z","DOIUrl":"10.1007/s10973-024-13912-z","url":null,"abstract":"<div><p>With the rapid growth of resource depletion, heat storage materials play a vital role in sustainable development. However, as a kind of heat storage material, phase change material (PCM) leaks easily when used, so anti-leak measures are crucial. In this study, microencapsulation phase change materials (MPCMs) were prepared by emulsifying first and then crosslinking, in which tetraethyl orthosilicate (TEOS) was used as the shell coating precursor, octadecane as the core and sodium dodecyl sulfonate (SDS) as the emulsifier. The grafted objects of Si–O bonds in TEOS were adjusted through different ratios of SDS/octadecane. The results showed that when the mass ratio of SDS/octadecane is 0.067, SDS is hydrolyzed to lauryl alcohol under acidic conditions and grafted with silica, and the phase transition temperature is − 20 °C. SDS gradually changed from graft to adhere with octadecane through sulfonic acid bond when the mass ratio of SDS/octadecane increased. Si–O bonds combine octadecane with sulfonic acid bonds through van der Waals forces and the indirect branches of Si–O bonds form an inorganic silica shell. When the mass ratio of SDS/octadecane is 0.15, the phase transition temperature was 23 °C and the phase transition enthalpy was 111.9 J g⁻¹. The obtained silica/octadecane MPCMs have small diameter, good thermal stability and the phase change enthalpy remains stable after 500 cycles, and the composite materials blended with polyvinyl alcohol also have good thermal properties. It is expected to be applied in the field of heat management textiles.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"97 - 106"},"PeriodicalIF":3.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423037","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":"A comprehensive study on Maxwell hybrid nanostructure and Maxwell nanostructure on 2D flow model over a stretching sheet with non-uniform heat generation/absorption and binary chemical reaction","authors":"Kirnu Badak,&nbsp;Ram Prakash Sharma,&nbsp;Shaik Mohammed Ibrahim","doi":"10.1007/s10973-024-13754-9","DOIUrl":"10.1007/s10973-024-13754-9","url":null,"abstract":"<div><p>The combination of Maxwell fluids with hybrid nanostructures opens up the possibilities for novel energy-efficient systems that employ the advantage of hybrid nanofluids’ superior heat transfer capabilities, such as next-generation cooling systems for nuclear reactors or solar energy applications, advanced material development, improved process efficiency and innovation in thermal management and reaction control. Hence, the current article studies the effects of binary chemical reaction and multiple slips on MHD Maxwell hybrid nanofluid incorporating titanium dioxide and copper nanoparticles in water–ethylene glycol through a 2D stretching sheet with thermal radiation, viscous dissipation and non-uniform heat source or sink. A comprehensive behaviour of Maxwell hybrid nanostructure and Maxwell nanostructure is also investigated. Obtained dimensionless ordinary differential equations of the proposed model are solved by finite difference approach via bvp4c scheme in MATLAB. Computed numerical result revealed that Deborah number, magnetic parameter, thermal relaxation parameter, thermal radiation parameter, Eckert number, and space-dependent and time-dependent heat source/sink parameter tend to raise temperature profile. Maxwell hybrid nanostructure experiences more heat transfer, drag force and mass transfer than Maxwell nanostructure. The suspension of nanoparticles in the presence of magnetic field and slip condition on boundary has a significant application in enhancing the cooling system of electronics, sensors and drug delivery systems.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"521 - 535"},"PeriodicalIF":3.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423038","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":"Development of machine learning models for predicting thermophysical properties of VR/VGO nanofluids applicable in enhanced oil recovery","authors":"Nazim Hasan,&nbsp;Shadma Tasneem,&nbsp;Othman Hakami,&nbsp;Waleed M. Alamier,&nbsp;Marjan Goodarzi","doi":"10.1007/s10973-024-13857-3","DOIUrl":"10.1007/s10973-024-13857-3","url":null,"abstract":"<div><p>Previous studies indicate that nanotechnology can significantly enhance the effectiveness of enhanced oil recovery (EOR) techniques, particularly hot fluid injection. The efficiency of the injection process can be significantly influenced by the nanofluid's thermophysical properties (TPPs). However, laboratory examinations of TPPs on the performance of nanofluid-based EOR techniques are time-consuming and expensive, and theoretical models can also be inaccurate. To address this challenge, machine learning (ML) models can efficiently predict nanofluid TPPs and their impact on oil recovery performance. This study uses six ML algorithms: the K-Nearest Neighbors (KNN), the Theil-Sen regressor, the decision tree (DT), the lightGBM, the Bayesian ridge, and the LASSO. Using the VR-fluid thermal conductivity and temperature created the formula and the model for thermal conductivity of the VR-VGO nanofluid with 2 mass% CuAeg, and also by the VR-VGO nanofluid with 2 mass% CuAeg thermal conductivity and temperature created the formula and model for VR-fluid thermal conductivity. The maximum R-squared (<i>R</i>²) for the VR-VGO nanofluid with 2 mass% CuAeg for the formula and the model attained by the Theil-Sen regressor and the KNN, which respectively are 0.997 and 0.999 in linear formation, and the best <i>R</i>² for the VR-fluid for the formula and the model reached by the BR and the KNN respectively are 0.98 using the polynomial formation, and 0.995 using the linear form. The VR-fluid viscosity and temperature calculate the VR-VGO nanofluid with 2 mass% CuAeg viscosity and the VR-fluid viscosity are calculated using the VR-VGO nanofluid with 2 mass% CuAeg viscosity and temperature. The best <i>R</i>² for the VR-VGO nanofluid with 2 mass% CuAeg reached by the Theil-Sen regressor for the formula, the KNN for the model, and the <i>R</i>² score for the VR-VGO nanofluid with 2 mass% CuAeg viscosity respectively are 0.999 and 0.999 in linear form. The best <i>R</i>² value for the VR-fluid for the formula by the BR is 0.999, and for the model by the KNN is 0.999 in linear form.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"691 - 705"},"PeriodicalIF":3.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423040","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":"Effect of a novel hybrid nanomaterial in a porous PCM container on the solidification of water with radiative heat removal","authors":"Hanan A. S. Albalwi","doi":"10.1007/s10973-024-13893-z","DOIUrl":"10.1007/s10973-024-13893-z","url":null,"abstract":"<div><p>This article introduces an advanced numerical method to simulate the unsteady freezing inside a curved porous container, enhanced with hybrid nanoparticles and porous foam. By integrating these components and accounting for radiation effects, the study significantly accelerates the freezing process. Replacing water with hybrid nanofluids decreases the solidification time by 6.26%, showcasing the superior thermal conductivity of the nanofluid. Additionally, the incorporation of porous foam is highly effective, reducing freezing time by 78.77%, while the inclusion of radiation cuts the time by 25.78%. In a base scenario using only water without porous foam or radiation, the freezing time extends to 700.12 s. However, the optimized configuration, which combines all these techniques, reduces the process to just 139.30 s, underscoring a marked improvement in cold energy storage performance.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"743 - 758"},"PeriodicalIF":3.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423041","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":"Effect of substituted cyclodextrins on ibrutinib solubility and characterization of IBR-cyclodextrin inclusion complexes by isothermal titration calorimetry in solution state","authors":"Sridhar Babu Swarna,&nbsp;Pardeep Gupta","doi":"10.1007/s10973-024-13922-x","DOIUrl":"10.1007/s10973-024-13922-x","url":null,"abstract":"<div><p>Ibrutinib (IBR) is a Bruton's tyrosine kinase inhibitor, a potent drug used in the treatment of various B cell malignancies. The IBR has poor bioavailability due to low aqueous solubility and high first-pass metabolism. The current research aims to enhance the IBR aqueous solubility by complexation with substituted beta-cyclodextrins and characterize the inclusion complexes using isothermal titration calorimetry. The complexation rate constants calculated from phase solubility study and isothermal titration calorimetry range from 1000 to 6600M⁻¹, indicating stable inclusion complexes' formation. The driving forces for the formation of inclusion complexes in the solution state are characterized by isothermal titration calorimetry. The thermodynamic parameters such as negative Gibbs free energy change, negative change in enthalpy values, and positive change in entropy values indicate that the formation of inclusion complexes is a spontaneous reaction.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"237 - 244"},"PeriodicalIF":3.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10973-024-13922-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423507","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":"Heat transfer performance in a hybrid nanoliquid enclosure with a hot inner circular obstacle under Lorentz force effect","authors":"Priyabrata Sethy,&nbsp;Amit Kumar,&nbsp;Atul K. Ray,&nbsp;V. K. Chaurasiya,&nbsp;Abha Kumari,&nbsp;Mikhail A. Sheremet","doi":"10.1007/s10973-024-13750-z","DOIUrl":"10.1007/s10973-024-13750-z","url":null,"abstract":"<div><p>The heat transport efficiency inside an enclosure has been harnessed in different applications including heat exchangers, solar collectors, and electronic devices. Hybrid nanoliquids conduct higher heat transport than mono nanoliquid. This research deals with the performance of heat transport within square chamber filled with hybrid nanofluid featuring a heated inner circular obstacle. The used hybrid nanofluid is amalgamation of uniform and equal amount of MgO and Ag nanoadditives in water as a host liquid. The square chamber is under the Lorentz force effect. Further, the chamber is isothermally heated/cooled from the lower surface and vertical surfaces, respectively, while upper wall is thermally insulated. The coupled partial differential equations have been solved using a CFD (Computational fluid dynamics) package named Comsol Multiphysics, advanced simulation software. Comsol Multiphysics is solver of finite element problems. The impact of key parameters such as the Rayleigh and Hartmann numbers, nanoparticles concentration fraction, and inclined angle of Lorentz force on thermal convection is studied in details. The computational examination has been conducted in a wide range of key characteristics viz. <i>Ra</i> = 10³–10⁶, <i>Ha</i> = 0–100 and ϕ = 0.01, 0.02. The performed validation has shown a good agreement with numerical outcomes of other authors. The streamlines strength is raised rapidly for higher <i>Ra</i>. Highest velocity magnitude is near arc length <i>L</i> = 1.5. With rise of <i>Ha</i>, the isotherms formed at the left and right wall are reduced. The inclination angle of Lorentz force is significantly affecting the energy transport. The study is relevant in optimizing the cooling of electronic system within device where reducing temperature within the device is essential in order to prevent overheating and make sure the reliability of the electronic devices. The findings hold promise for different applications including electronics cooling and heat exchangers.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"395 - 412"},"PeriodicalIF":3.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423036","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":"An imperative need for machine learning algorithms in heat transfer application: a review","authors":"M. Ramanipriya,&nbsp;S. Anitha","doi":"10.1007/s10973-024-13885-z","DOIUrl":"10.1007/s10973-024-13885-z","url":null,"abstract":"<div><p>In recent years, modeling of heat exchanger is increased due to transient prediction, optimization, and performance calculations. Nanofluids play a vital role in increasing heat transfer performance of heat exchangers. This review gives an open knowledge on predicting heat transfer performance of various heat exchanger with nanofluid as coolant using various machine learning techniques. Machine learning is a promising data-driven approach for estimating heat exchanger parameters through regression classification, demonstrating promising prediction capabilities. This review article provides exemplary guidance on selecting suitable model to predict important criteria such as heat transfer coefficient, Nusselt number, overall heat transfer performance, and provides restrictions, and loopholes of machine learning techniques for heat transfer applications.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"49 - 75"},"PeriodicalIF":3.0,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423505","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":"Phase constituent of an as-cast Co–Ni–Al–W–Re–Ti alloy: correlation of DTA results with CALPHAD and map structure simulations","authors":"A. Tomaszewska,&nbsp;G. Moskal,&nbsp;M. Homa,&nbsp;M. Kierat,&nbsp;M. Liśkiewicz,&nbsp;T. Mikuszewski,&nbsp;B. Witala,&nbsp;A. Szczotok,&nbsp;P. Kolakowski,&nbsp;T. Maciąg","doi":"10.1007/s10973-024-13773-6","DOIUrl":"10.1007/s10973-024-13773-6","url":null,"abstract":"<div><p>Designing the chemical composition of new heat-resistant materials, including a new group of cobalt-based materials strengthened with the L1₂ phase with the general formula Co₃(Al,X), requires the introduction of numerous alloy components, stabilizing the strengthening phase into the base composition. Typically, these are elements of high melting metals, whose main role is to stabilize the interphase boundary between the matrix and L1₂ precipitates and, in some way, strengthen the solid solution. These elements are characterized by high bond energy. On the other hand, the high content of this type of alloy addition increases the tendency of the alloy to release undesirable topologically compact phases, which rapidly deteriorate the mechanical properties of the alloy. These phases usually form in interdendritic areas, generating the so-called melting onset temperature, which deviates significantly from the solidus value. Therefore, the ability to predict the type and number of topologically compact phases being formed allows for the skilful design of the chemical composition of the alloy and its heat treatment, ensuring full dissolution of the mentioned phases in the matrix. This topic is the area of research in this article and concerns the Co–20Ni–9Al–7W–3Re–2Ti alloy in its immediately as-cast state. The scope of the research included simulations using the CALPHAD method and prediction of the phase composition of precipitates using two-dimensional structure maps. The obtained theoretical results were verified in microstructural tests using the STEM method and correlated with the results of DTA tests.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"123 - 140"},"PeriodicalIF":3.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10973-024-13773-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423427","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":"Study on the toxicity of fire smoke from mining conveyor belts","authors":"Weifeng Wang,&nbsp;Jinzhong Wu,&nbsp;Hao Ren,&nbsp;Zhuoyang Li,&nbsp;Hongyin Yi,&nbsp;Yuliang Guo,&nbsp;Xiaopeng Shang,&nbsp;Chi-Min Shu","doi":"10.1007/s10973-024-13924-9","DOIUrl":"10.1007/s10973-024-13924-9","url":null,"abstract":"<div><p>In recent years, mine conveyor belt fire accidents have occurred frequently, and an enormous amounts of toxic smoke generated during fire accidents seriously threaten the lives and safety of miners. To evaluate the smoke toxicity from mining conveyor belt fires and determine the characteristic gases for early warning of the fire, the combustion performance test and smoke density infrared spectroscopy combined test were employed to qualitatively and quantitatively analyze the change patterns of combustion products, and the index toxicity (CIT) and fractional effective dose, toxicity evaluation models, were used to evaluate the toxicity of combustion products. The results of this study showed that the heat release rate and smoke release rate of the conveyor belt had similar trends under different thermal radiation intensities, and the peak values of the heat release rate and smoke release rate increase with the increase in thermal radiation intensity. A total of 19 gas-phase substances were detected in the combustion products, among which the conventional index of toxicity of CO and HCl were 1.007 and 10.43 times the reference value, respectively, which are the leading causes of casualties in mine conveyor belt fires. In addition, the CIT of SO₂, HCN, NO₂, and CO₂ was 38.79%, 36.98%, 26.05%, and 9.00% of the reference value, respectively, all of which are highly toxic. Therefore, the above six types of gases can be used as indicator gases for conveyor belt fire early warning. The results of this study have vital guiding significance for the planning of escape routes and early monitoring and warning for personnel in mine conveyor belt fires.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"201 - 210"},"PeriodicalIF":3.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423428","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":"Contrasting analysis of tetra and ternary nanofluid dynamics over linear/exponential stretching sheets with variable thermal conductivity: an RSM approach","authors":"Chandralekha Mahanta,&nbsp;Ram Prakash Sharma","doi":"10.1007/s10973-024-13796-z","DOIUrl":"10.1007/s10973-024-13796-z","url":null,"abstract":"<div><p>This research investigates the unsteady flow of rotating Casson tetra hybrid nanofluid with dual stratification, examining the impact of variable thermal conductivity and thermal stratification on heat transfer. This study shows the unsteady behavior of tetra and ternary hybrid nanofluid flow over two different surfaces, i.e., linear and exponential surfaces. The thermophysical properties of the tetra nanoparticles, i.e., <span>({text{Ag}},;{text{Cu}},;{text{SWCNTs}},,,{text{and}},,{text{MWCNTs}})</span>, comprise in C₂H₆O₂–H₂O (50–50%) base fluid. Similarity constraints are applied to convert the flow model equations into a system of coupled ordinary differential equations, which are then solved using MATLAB’s iteration-based bvp4c code. Results show that rotation and stretching significantly affect the velocity and temperature profiles. A comparison with existing literature indicates strong agreement, validating the current findings. Additionally, response surface methodology (RSM) for multiple linear regression is used to statistically analyze the impact of relevant parameters on the drag coefficient and rate of energy transfer of fluid over the linear elongated surface, including 3D plots illustrating these effects. Thermal stratification is utilized in energy-efficient buildings to maintain comfortable temperatures by keeping warmer air near the ceiling and cooler air near the floor. It is also employed in water reservoirs to optimize energy storage and distribution.</p></div>","PeriodicalId":678,"journal":{"name":"Journal of Thermal Analysis and Calorimetry","volume":"150 1","pages":"649 - 671"},"PeriodicalIF":3.0,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423031","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}