Journal of Heat Transfer-transactions of The Asme最新文献_第8页

A Deep Study On a Particle-Water Coupled Fast Induction Heating System 粒子-水耦合快速感应加热系统的深入研究

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-04-12 DOI: 10.1115/1.4062307

Junfeng Lu, Hao-Han Zhang

引用次数: 0

Inverse Estimation of Effective Thermal Conductivity of Multilayer Materials Considering Thermal Contact Resistance 考虑接触热阻的多层材料有效导热系数的反演

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-04-12 DOI: 10.1115/1.4062306

Chunyun Zhang, Zheng He, Lv Jun, Kun Liu, M. Cui

{"title":"Inverse Estimation of Effective Thermal Conductivity of Multilayer Materials Considering Thermal Contact Resistance","authors":"Chunyun Zhang, Zheng He, Lv Jun, Kun Liu, M. Cui","doi":"10.1115/1.4062306","DOIUrl":"https://doi.org/10.1115/1.4062306","url":null,"abstract":"\u0000 Multilayer materials have been widely used in engineering applications, attributed to excellent thermo-mechanical performances. However, the thermal or mechanical properties of multilayer materials remain elusive, owing to contact behaviors etc. factors. In order to address this issue, an innovative method is employed to estimate the effective thermal conductivity (ETC) of multilayer materials considering thermal contact resistance (TCR) between layers, and the equivalence performance is investigated by solving three-dimensional inverse heat conduction problems. First, the equivalence method is validated by available experimental data of a multilayered insulation composite material. Then, the precision of different equivalence methods is compared, and the results indicate that the anisotropic equivalence method has higher accuracy than the isotropic and orthotropic equivalences for the 5-layer material in the present work. Finally, the robustness and stability of the anisotropic equivalence method are evaluated in detail. The present work provides a new alternative method for predicting the effective thermal conductivity of multilayer materials.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"28 13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84663729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Comparative Study On a Shrouded Fin Array with and Without Its Finite Dimension in the Flow Geometry. 带和不带有限维的冠状翅片阵列流动几何的比较研究。

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-04-12 DOI: 10.1115/1.4062305

A. Giri, Maibam Romio Singh

{"title":"A Comparative Study On a Shrouded Fin Array with and Without Its Finite Dimension in the Flow Geometry.","authors":"A. Giri, Maibam Romio Singh","doi":"10.1115/1.4062305","DOIUrl":"https://doi.org/10.1115/1.4062305","url":null,"abstract":"\u0000 In numerical heat transfer analysis, despite the involvement of the finite dimension in the geometries of heat exchanging devices, these dimensions are frequently assumed to be adequately thin and hence neglected for the ease of analysis. But it may be essential to include the finite dimension of the heat transfer equipment which makes the study more realistic. There are numerical reports on fin heat transfer, which involve with and without consideration of the fin-thickness in the flow geometry. But there remains a dearth of literature in which the results of the fin heat transfer obtained from these considerations are compared. In this essence, an attempt has been made to compare the results obtained from a study of numerical heat transfer on a shrouded vertical fin array with and without consideration of fin-thickness in the flow geometry under mixed convection. From the present computations, it is noted that with the consideration of the fin-thickness, there is a possibility of an increase in axial pressure defect by around 45% indicating the requirement of higher pumping power. Again for the chosen range of parameters, overall Nusselt number increases by around 18% as compared to without fin-thickness that may arise due to altered heat transfer coefficient caused by higher velocity over the extended surface to accommodate finite fin dimension. Finally pressure drop and Nusselt number is correlated with the governing parameters including fin-thickness.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"73 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87764035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Raymond Viskanta

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-04-05 DOI: 10.1115/1.4062261

M. A. Bianchi, Theodore Bergman, V. Dhir, A. Faghri, A. G. Fedorov, M. Pinar Mengüç, Abdulmajeed Mohamad, Laurent Pilon, X. Ruan, Tae-Ho Song, B. W. Webb, Xianfan Xu

引用次数: 0

Estimating of the Radiance in Atmosphere-ocean Systems with Different Atmosphere Models by Discrete Spherical Harmonics Method 用离散球谐法估算不同大气模式下大气-海洋系统的辐射

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-04-05 DOI: 10.1115/1.4062262

Arantes Fokou, René Tchinda, Guillaume Lambou Ymeli, M. Lazard, Cunhai Wang

{"title":"Estimating of the Radiance in Atmosphere-ocean Systems with Different Atmosphere Models by Discrete Spherical Harmonics Method","authors":"Arantes Fokou, René Tchinda, Guillaume Lambou Ymeli, M. Lazard, Cunhai Wang","doi":"10.1115/1.4062262","DOIUrl":"https://doi.org/10.1115/1.4062262","url":null,"abstract":"\u0000 The radiative transfer in atmosphere-ocean systems with different atmosphere models is evaluated by the discrete spherical harmonics method. Four standard atmosphere models namely Tropical, MidLatitude Summer, MidLatitude Winter and U.S. Standard (1976) limited to a height of 16km are considered above an ocean. Two monochromatic radiations are considered according to the preponderance of the interaction they present with the participating medium namely ?=0.55μm for scattering by particles and ?=16.8μm for absorption and emission by water vapour and carbon dioxide. The absorption by the atmospheric gases considered is analysed by the statistical narrow-band correlated-k method. The optical properties of aerosols and water clouds considered are calculated by Mie theory. The results obtained by the proposed discrete spherical harmonics method are in agreement with those of the literature and demonstrate the efficiency and accuracy of the developed radiative transfer code. The effects of the governing parameters of the system are investigated and show that the presence of the ocean contributes to increasing the upward radiation fluxes in the atmosphere. The presence of aerosols in the atmosphere leads to downward radiance curves at ground level that show significant peaks around the zenith angle of observation ?=0°. Additionally, the presence of the cloud in the atmosphere creates a discontinuity in the radiation flux curves at the height of the cloud.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80583045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Performance Evaluation Based On Exergy Analysis Through Partially Filled Metal Foams in Forced Convection 基于部分填充金属泡沫在强制对流中的火用分析的性能评价

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-03-28 DOI: 10.1115/1.4062214

K. K, Banjara Kotresha, Kishan Naik

{"title":"Performance Evaluation Based On Exergy Analysis Through Partially Filled Metal Foams in Forced Convection","authors":"K. K, Banjara Kotresha, Kishan Naik","doi":"10.1115/1.4062214","DOIUrl":"https://doi.org/10.1115/1.4062214","url":null,"abstract":"\u0000 The intention of this paper is to present the numerical analysis of thermal performance and exergy transfer through high porosity metal foams filled partially in a horizontal pipe. The heater is embedded on the pipe's circumference and is assigned with known heat input. To enhance heat transfer, aluminum metal foam of pore density 10 with porosity 0.95 is inserted adjacent to the pipe's inner wall. To determine the optimal thickness of metal foam for enhancing the performance thermodynamically, metal foams with five different thicknesses (10, 20, 40, 60, and 80 mm) are examined in this research for a fluid velocity ranging from 0.7 - 7 m/s under forced convection heat transfer condition. Darcy Extended Forchheimer (DEF) and local thermal non-equilibrium (LTNE) models are used for forecasting the flow features and heat transfer through the metal foams respectively. The numerical methodology implemented in this research is confirmed by comparing the present outcomes with the experimental outcomes accessible in the literature and found a fairly good agreement between them. The thermal performance is assessed in terms of heat transfer enhancement ratio and performance factor, and the thermodynamic performance is evaluated based on exergy analysis. In the exergy analysis, the parameters like mean exergy based Nusselt number (?Nu?_e), merit function (MF), and non-dimensional exergy destruction (I*) are considered for the evaluation. The result shows a better performance from partially filled metal foams than from completely filled metal foams.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85199155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Combined Radiation and Convection in Developing Flow in a Parallel Plate Channel with Real Gas Behavior: The Case of Gas Cooling 辐射和对流在具有真实气体行为的平行平板通道中展开流动中的结合:以气体冷却为例

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-03-28 DOI: 10.1115/1.4062205

Kyle Pulsipher, B. W. Webb

{"title":"Combined Radiation and Convection in Developing Flow in a Parallel Plate Channel with Real Gas Behavior: The Case of Gas Cooling","authors":"Kyle Pulsipher, B. W. Webb","doi":"10.1115/1.4062205","DOIUrl":"https://doi.org/10.1115/1.4062205","url":null,"abstract":"\u0000 The effect of real gas volumetric radiation on the thermal development in laminar parallel plate channel flow of H2O and/or CO2 in the case of gas cooling has been investigated numerically. The non-gray radiation effects of the gas have been treated using a global spectral approach, the Spectral Line Weighted-sum-of-gray-gases model. The results reveal that gas radiation results in significantly higher total heat transfer to the cooled channel wall, with an attendant more rapid drop in gas mean temperature. Gas radiation is seen to increase the local convective and total (radiative plus convective) Nusselt number for increasing radiating species mole fraction for both H2O and CO2, and for increasing gas inlet temperature. The influence of gas radiation on the thermal development is lower for CO2 than for H2O. An apparent thermally fully-developed condition may exist for this combined convection-radiation problem with real gases in the gas cooling scenario, and radiation has the effect of significantly extending the thermally developing region. Combined hydrodynamic and thermal development yields higher heat transfer than the thermally developing condition. Smaller channel wall spacing results in lower radiative heat transfer, and the aforementioned radiation effects are diminished. Local convective and radiative flux, and thermal entry length also increase with elevated gas total pressure.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82296149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Artificial Neural Network Modeling for Predicting the Transient Thermal Distribution in a Stretching/Shrinking Longitudinal Fin 拉伸/收缩纵向翅片瞬态热分布预测的人工神经网络建模

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-03-28 DOI: 10.1115/1.4062215

Varun Kumar R S, I. Sarris, G. Sowmya, Prasannakumara B.C, Amit Verma

{"title":"Artificial Neural Network Modeling for Predicting the Transient Thermal Distribution in a Stretching/Shrinking Longitudinal Fin","authors":"Varun Kumar R S, I. Sarris, G. Sowmya, Prasannakumara B.C, Amit Verma","doi":"10.1115/1.4062215","DOIUrl":"https://doi.org/10.1115/1.4062215","url":null,"abstract":"\u0000 This study emphasizes the aspects of heat transfer and transient thermal distribution through a rectangular fin profile when a stretching or shrinking mechanism is mounted on the surface of the fin. Furthermore, the effects of radiation, internal heat generation, and convection are all considered when developing the corresponding fin problem. The simulated time-dependent heat transfer equation is a partial differential equation (PDE) that can be represented by dimensionless arrangement using appropriate non-dimensional terms. The nonlinear dimensionless problem concerning the stretching/shrinking of a fin is numerically solved using the finite difference method (FDM), and the Levenberg-Marquardt method of backpropagation artificial neural network (LMM-BANN) has been used in this investigation. By varying the stretching/shrinking parameters, a set of data for the presented ANN is produced to discuss stretching and shrinking scenarios. The testing, training, and validation procedure of LMM-BANN, as well as correlation for verification of the validity of the proposed approach, establish the approximate solution to various scenarios. The suggested model LMM-BANN is then validated using regression interpretation, mean square error, and histogram explorations. The ANN results and the procured numerical values agree well with the current numerical results.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75249371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Accelerated Prediction of Photon Transport in Nanoparticle Media Using Machine Learning Trained with Monte Carlo Simulations

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-03-23 DOI: 10.1115/1.4062188

Daniel Carne, J. Peoples, Dudong Feng, X. Ruan

{"title":"Accelerated Prediction of Photon Transport in Nanoparticle Media Using Machine Learning Trained with Monte Carlo Simulations","authors":"Daniel Carne, J. Peoples, Dudong Feng, X. Ruan","doi":"10.1115/1.4062188","DOIUrl":"https://doi.org/10.1115/1.4062188","url":null,"abstract":"\u0000 Monte Carlo simulations for photon transport are commonly used to predict the spectral response, including reflectance, absorptance, and transmittance in nanoparticle laden media, while the computational cost could be high. In this study, we demonstrate a general purpose fully connected neural network approach, trained with Monte Carlo simulations, to accurately predict the spectral response while dramatically accelerating the computational speed. Monte Carlo simulations are first used to generate a training set with a wide range of optical properties covering dielectrics, semiconductors, and metals. Each input is normalized, with the scattering and absorption coefficients normalized on a logarithmic scale to accelerate the training process and reduce error. A deep neural network with ReLU activation is trained on this dataset with the optical properties and medium thickness as the inputs, and diffuse reflectance, absorptance, and transmittance as the outputs. The neural network is validated on a validation set with randomized optical properties, as well as nanoparticle medium examples including barium sulfate, aluminum, and silicon. The error in the spectral response predictions is within 1% which is sufficient for many applications, while the speedup is 1-3 orders of magnitude. This machine learning accelerated approach can allow for high throughput screening, optimization, or real time monitoring of nanoparticle media's spectral response.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88191169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Experimental and Numerical Analysis of Heat Transfer and Flow Phenomena in Taylor Flow Through a Straight Mini-channel 直线型小通道Taylor流动传热与流动现象的实验与数值分析

4区工程技术

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-03-21 DOI: 10.1115/1.4062175

A. Etminan, Y. Muzychka, K. Pope

{"title":"Experimental and Numerical Analysis of Heat Transfer and Flow Phenomena in Taylor Flow Through a Straight Mini-channel","authors":"A. Etminan, Y. Muzychka, K. Pope","doi":"10.1115/1.4062175","DOIUrl":"https://doi.org/10.1115/1.4062175","url":null,"abstract":"\u0000 This study experimentally and numerically investigates the hydrodynamic characteristics, and heat transfer of developing and fully developed laminar liquid-liquid Taylor flows. The problem is conducted in circular mini-channels with different diameters subjected to a constant wall temperature boundary condition. An experimental setup is designed employing an open-loop water / oil two-phase non-boiling flow at mini scale tubing sizes of 1.42, 1.52, and 1.65 mm. Two silicone oils with the dynamic viscosities of 1 and 5 cSt at several volumetric flow rates are used to establish segmented flow. The impacts of the channel diameter, viscosity, and flow rate ratio on the flow pattern, pressure drop, film thickness, and heat transfer rate are discussed. It is found, in good agreement with the literature, that the pressure drop generated by the interface inecreases the total pressure loss up to 200% compared to the single-phase flow. The results also explain how recirculating regions within the slugs influence the film region and the physics of backflow. Furthermore, introducing segmented water slugs enhances the heat transfer rate significantly as the dimensionless thermal length decreases. A significant relation between the recirculating regions and heat transfer has been demonstrated for the first time.","PeriodicalId":15937,"journal":{"name":"Journal of Heat Transfer-transactions of The Asme","volume":"128 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89615154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2