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Articles 1 - 30 of 52
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Exploring The Impact Of Vented Packaging Configurations On Airflow Patterns And Cooling Consistency For Muskmelons In A Cold Storage Environment, Nur Wafidah Roslan, Namasivayam Navaranjan, Zohrah Sulaiman, Naseem Uddin
Exploring The Impact Of Vented Packaging Configurations On Airflow Patterns And Cooling Consistency For Muskmelons In A Cold Storage Environment, Nur Wafidah Roslan, Namasivayam Navaranjan, Zohrah Sulaiman, Naseem Uddin
ASEAN Journal on Science and Technology for Development
The cooling effect of different vented packaging designs was investigated for packed muskmelons fruits in a commercial cold storage condition. Computational fluid dynamics (CFD) simulation and experiments were used. The airflow pattern, heat transfer and temperature profiles were predicted from simulation and analysed. The CFD results reveal an uneven and low efficient airflow distribution inside a commercially used vented packaging (Box A). This resulted slow cooling of the fruits in Box A. Two newly designed packaging (Box B and Box C) showed better airflow distribution around the fruits and cooled them faster than Box A. The design of Box C …
Magnetic Field’S Effect On Two-Phase Flow Of Jeffrey And Non-Jeffrey Fluid With Partial Slip And Heat Transfer In An Inclined Medium, Sunday Lot, Waheed Oluwafemi Lawal, Adedapo Chris Loyinmi
Magnetic Field’S Effect On Two-Phase Flow Of Jeffrey And Non-Jeffrey Fluid With Partial Slip And Heat Transfer In An Inclined Medium, Sunday Lot, Waheed Oluwafemi Lawal, Adedapo Chris Loyinmi
Al-Bahir Journal for Engineering and Pure Sciences
In this paper, the effect of magnetic field on two –phase flow of Jeffrey and non-Jeffrey fluids in an inclined medium is investigated. The flow in both medium is assumed to be set in motion by constant pressure gradient. The electrical conductivity in the non-Jeffrey fluid in phase I is considered to be zero, so that the constant magnetic field strength Bo in the transverse direction only affects the Jeffrey fluid in phase II. The equations governed the flow of the fluid were solved using perturbation method. The effect of magnetic field, Jeffrey and thermal slip parameters on the temperature …
Simulation Of Seepage And Heat Transfer In 3d Fractured Rock Mass Based On Fracture Continuum Method, Dong-Dong Liu, Li-Xin Wei, Guo-Yuan Xu, Yan-Yong Xiang
Simulation Of Seepage And Heat Transfer In 3d Fractured Rock Mass Based On Fracture Continuum Method, Dong-Dong Liu, Li-Xin Wei, Guo-Yuan Xu, Yan-Yong Xiang
Rock and Soil Mechanics
The main challenge of simulating the processes of seepage and heat transfer in fractured rock mass is the heterogeneity of rock mass at various scales. In order to balance the efficiency and accuracy of numerical simulation, the two-dimensional fracture continuum method is extended to a three-dimensional one. Based on the depth-first search algorithm, the effective fractures contributing to the permeability of rock blocks are collected. The block permeability tensor is obtained by considering the contribution of effective fractures and rock matrix. The finite element software COMSOL Multiphysics is integrated with Matlab to generate a three-dimensional fracture continuum model that contains …
Heat Transfer Of Non-Newtonian Drag Reducing Flow In Porous Media, Mohamed Alaa Zahran
Heat Transfer Of Non-Newtonian Drag Reducing Flow In Porous Media, Mohamed Alaa Zahran
Journal of Engineering Research
Forced convection heat transfer for non-Newtonian drag reduction (polyethylene oxide) with heat flux is experimentally studied in a pipe filled with plastic spheres porous media. Along the pipeline, installing pumping stations is expensive; reducing the drag inside the pipe is better. The effect of PEO concentration on the heat transfer properties in the pipe is studied. The experiments are used to demonstrate the effect of changing Reynolds number and PEO concentrations on Nusselt number of the water and polymer solutions for different diameter ratios (d/D) and different concentrations. In the experiments, the test section is a circular pipe filled with …
Heat Transfer Of Non-Newtonian Drag Reducing Flow In Porous Media, Mohamed Alaa Zahran
Heat Transfer Of Non-Newtonian Drag Reducing Flow In Porous Media, Mohamed Alaa Zahran
Journal of Engineering Research
Forced convection heat transfer for non-Newtonian drag reduction (polyethylene oxide) with heat flux is experimentally studied in a pipe filled with plastic spheres porous media. Along the pipeline, installing pumping stations is expensive; reducing the drag inside the pipe is better. The effect of PEO concentration on the heat transfer properties in the pipe is studied. The experiments are used to demonstrate the effect of changing Reynolds number and PEO concentrations on Nusselt number of the water and polymer solutions for different diameter ratios (d/D) and different concentrations. In the experiments, the test section is a circular pipe filled with …
Experimental Investigation Of The Thermal-Hydraulic Performance Of Conically Coiled Tubes Using Al2o3/Water Nanofluid, Mohamed Abdelghany
Experimental Investigation Of The Thermal-Hydraulic Performance Of Conically Coiled Tubes Using Al2o3/Water Nanofluid, Mohamed Abdelghany
Journal of Engineering Research
The thermal-hydraulic performance of conically coiled tubes (CCTs) was investigated experimentally under constant heat flux boundary conditions in this study. The effect of several factors, such as the flow Dean number, coil torsion, and varied nanoparticle weight concentrations, on the flow's heat transfer coefficient and pressure drop was studied. Thermo-hydraulic performance was studied at 0.3%, 0.6%, and 0.9% volume concentrations (ϕ) of Al2O3/water nanofluid, a Dean number (De) of 1148–2983, and coil torsions (λ) ranging from 0.02 to 0.052. Results indicated that the heat transfer rates (HTRs) of CCTs increased when the coil torsion was decreased. According to the findings, …
Investigation Of The Effect Of Corundum Layer On The Heat Transfer Of Sic Slab, Sri Elsa Fatmi, Donanta Dhaneswara, Muhammad Anis, Ahmad Ashari
Investigation Of The Effect Of Corundum Layer On The Heat Transfer Of Sic Slab, Sri Elsa Fatmi, Donanta Dhaneswara, Muhammad Anis, Ahmad Ashari
Journal of Materials Exploration and Findings
Aluminum is the most widely used metal in industry. Aluminum smelting is one of the important steps that needs to be carried out to produce products made of aluminum metal with good quality. In the process of smelting aluminum there are several problems that occur, one of which is the growth of corundum in Si C refractories which affects the quality of aluminum melt and the durability of Si C refractories. This research was conducted to see the heat transfer in Si C and the effect of the presence of Corundum on heat transfer. This research was carried out by …
Modeling And Simulation Of Sofc System With Heat Transfer Among Bop Components, Ling Hong, Rongmin Wu, Jianwu Zhou, Tian Xia, Xiaojie Li, Pengjie Tian, Hao Peng, Chunhui Shou
Modeling And Simulation Of Sofc System With Heat Transfer Among Bop Components, Ling Hong, Rongmin Wu, Jianwu Zhou, Tian Xia, Xiaojie Li, Pengjie Tian, Hao Peng, Chunhui Shou
Journal of System Simulation
Abstract: High temperature solid oxide fuel cell (SOFC) is a high temperature and efficient hydrogen-electric conversion device. Its high temperature operating environment puts forward higher requirements for thermal insulation of stack and balance of plants(BoP) in the system. In this paper, a lumped SOFC system model is established based on the thermal efficiency-heat transfer unit number method (ε-NTU method), in combination with limited measurable parameters for high-temperature system.Quantitative analysis of components temperature and heat transfer among components can be achieved by heat exchange simulation between components and BoP hot-box environment. A simple feedback controlleris designed for system self-starting and operation. …
Determination Of The Heating Time Constant For Root Crops, Z K. Ergasheva, Beraat Ozcelik
Determination Of The Heating Time Constant For Root Crops, Z K. Ergasheva, Beraat Ozcelik
Technical science and innovation
Convective drying refers to one of the energy-intensive processes used in chemical, woodworking, food and other industries. Therefore, in modern conditions, when there is a growing shortage and an increase in energy tariffs, it is important to develop and apply new effective methods of drying wet materials in industrial production, create high-performance drying equipment, improve the operation of existing dryers, which will contribute to the rational use of natural resources, reduce the cost of finished products and increase the competitiveness of production. Root crops are plants in which nutrients are concentrated in tubers or roots. Jerusalem artichoke refers to sugar-containing …
To Calculate The Temperature Fields In The Substrate Layer Of The Submitted Heat Battery With Variable Thermophysical Coefficients At The Specified Temperature Regimes Of The Air In Heliotyhrane, B E. Khayriddinov, Sh B. Khayriddinov
To Calculate The Temperature Fields In The Substrate Layer Of The Submitted Heat Battery With Variable Thermophysical Coefficients At The Specified Temperature Regimes Of The Air In Heliotyhrane, B E. Khayriddinov, Sh B. Khayriddinov
Scientific-technical journal
An analytical method is proposed for solving problems of unsteady heat conduction with var-iable transport coefficients depending on the coordinate of the current point. The temperature fields in the substrate layer of the subsurface heat accumulator are studied with harmonic and exponential laws of air temperature vari-ation in greenhouses and livestock buildings
(R1480) Heat Transfer In Peristaltic Motion Of Rabinowitsch Fluid In A Channel With Permeable Wall, Mahadev M. Channakote, Dilipkumar V. Kalse
(R1480) Heat Transfer In Peristaltic Motion Of Rabinowitsch Fluid In A Channel With Permeable Wall, Mahadev M. Channakote, Dilipkumar V. Kalse
Applications and Applied Mathematics: An International Journal (AAM)
This paper is intended to investigate the effect of heat transfer on the peristaltic flow of Rabinowitsch fluid in a channel lined with a porous material. The Navier -Stokes equation governs the channel's flow, and Darcy's law describes the permeable boundary. The Rabinowitsch fluid model's governing equations are solved by utilizing approximations of the long-wavelength and small number of Reynolds. The expressions for axial velocity, temperature distribution, pressure gradient, friction force, stream function are obtained. The influence on velocity, pressure gradient, friction force, and temperature on pumping action of different physical parameters is explored via graphs.
The Growth Of Vapour Bubble Between Two-Phase Peristaltic Bubbly Flow Inside A Vertical Cylindrical Tube, S. A. Mohammadein, A. K. Abu-Nab
The Growth Of Vapour Bubble Between Two-Phase Peristaltic Bubbly Flow Inside A Vertical Cylindrical Tube, S. A. Mohammadein, A. K. Abu-Nab
International Journal of Thin Film Science and Technology
The behavior of vapour bubble in superheated liquid in a vertical cylindrical tube between two-phase flow densities is discussed under the effect of peristaltic motion of long wavelength and low Reynolds number. The mathematical model is formulated by mass, momentum, and heat equations. The problem solved analytically to estimate the growth of vapour bubbles, temperature and velocity distributions. The growth of vapour bubbles, temperature and velocity distribution proportional with the amplitude ratio, Grashof number, heat source parameter, volume rate, and inversely with density fraction. The present results of bubble growth performed lower values than that obtained by Mohammadein model (2001).
To Increasing The Absorption Area Of Column Apparatus With Tubular Lattice Nozzles, Nurmukhamedov Habibulla Sagdullaevich, Batir Babatulaev, Elbek Mavlanov, Samukdjan Nigmadjanov
To Increasing The Absorption Area Of Column Apparatus With Tubular Lattice Nozzles, Nurmukhamedov Habibulla Sagdullaevich, Batir Babatulaev, Elbek Mavlanov, Samukdjan Nigmadjanov
Chemical Technology, Control and Management
The problem of creating a compact refrigeration zone for absorbers with tubular-lattice nozzles made of pipes with spiral turbulators is discussed. Research has been carried out on the influence of the groove depth h/D and α/αгл of the step of their placement t/D on the degree of heat transfer intensification α/αо in the transition region of the gas-liquid flow. An intensification of heat transfer has been achieved only by increasing the groove depth from h/D = 0,003 to 0,095 and the optimal pitch of the grooves, the intensity of heat transfer is 2 or more times. Research has …
A Numerical Approach To Verify The Reservoir Temperature Of The Afyon Geothermal Fields, Turkey, Özgür Karaoğlu
A Numerical Approach To Verify The Reservoir Temperature Of The Afyon Geothermal Fields, Turkey, Özgür Karaoğlu
Turkish Journal of Earth Sciences
Geothermal energy constitutes an important renewable resource in Turkey that has been extensively utilized for heating buildings, power generation, greenhouse farming and various other industries. One of the most remarkable geothermal locations in Turkey is the low-enthalpy area of Afyon, where five main low-temperature (30-110 °C) geothermal fields are exploited. However, further exploration drilling sites have proven inconclusive, casting doubts on the effective presence of high-temperature geothermal systems in the region. Part of the challenge is that the geometry, size and depth of the heat source of the geothermal system is poorly constrained. It is documented that the Afyon region …
Mass And Heat Transfer Characteristics For Laminar Flow In A Sharp 180° Turn., M. Mohamed
Mass And Heat Transfer Characteristics For Laminar Flow In A Sharp 180° Turn., M. Mohamed
Mansoura Engineering Journal
Numerical studies of laminar flow and heat transfer around a sharp 180° turn, of especial relevance to electronic systems, are made. Two-dimensional unsteady simulations are considered because of the high geometrical aspect ratios (AR > 5) occurring in the practical application. A high-order time-accurate finite volume scheme was used to solve unsteady incompressible Navier-Stokes and energy equations. Simulations are performed for 50 ≤ Re ≤1000. Predictions show that the sharp tum flow remains steady up to Re ≤ 600. In this steady regime, the re-attachment length increases gradually with the Reynolds number. However, a further increase in the Reynolds number gives …
Control Of The Degree Of Intensification And Convective Heat Exchange With Flow Of Liquids In Pipes With Turbulators, B.B. Babatullaev, E.T. Mavlonov, U.V. Mannanov, Kh.S. Nurmukhamedov, U.H. Sagdullaev
Control Of The Degree Of Intensification And Convective Heat Exchange With Flow Of Liquids In Pipes With Turbulators, B.B. Babatullaev, E.T. Mavlonov, U.V. Mannanov, Kh.S. Nurmukhamedov, U.H. Sagdullaev
Chemical Technology, Control and Management
The article discusses the problem of controlling the degree of intensification of the absorption process of NH 3 purified brine and CO 2 ammoniated brine in the technology of soda ash production. It is known that the aforementioned gases upon contact with brine the reaction proceeds with liberation of a considerable quantitative via heat. Increasing temperatures s lead to reduced NIJ output and finished products. Timely control of the withdrawal requires maintaining the degree of intensification of the heat exchange process at a certain level while maintaining the ratio of the absorption and cooling zones of the absorption tower. To …
Research And Simulation Of Cross Flow Heat Exchanger, Chengyun Wu, Guangwen Wang, Geping Li, Xudong Xin
Research And Simulation Of Cross Flow Heat Exchanger, Chengyun Wu, Guangwen Wang, Geping Li, Xudong Xin
Journal of System Simulation
Abstract: Based on cell concept, the lumped parameter method was applied and the parameters in single heat exchanger cell were deduced. Thereafter 1, 4, 9,100 cells heat exchanger simulation model was set up and the simulation error and its influencing factors were analyzed. To simplify the algorithm and increase the calculation speed, as well as improve the accuracy of cross flow heat exchanger, the simplified heat exchanger model was proposed and reviewed. The research results show that the calculation of simplified heat exchanger is precise and the algorithm is simple. The model could be widely applied in cross flow heat …
Numerical Simulation Of Hot And Cold Fluids Mixing In A Tee-Junction, Wenli Wei, Yunfei Hong, Shipeng Shao, Yuling Liu
Numerical Simulation Of Hot And Cold Fluids Mixing In A Tee-Junction, Wenli Wei, Yunfei Hong, Shipeng Shao, Yuling Liu
Journal of System Simulation
Abstract: Flow and heat transfer model in tee junction was established and the 3D RNG k-ε turbulence model was completed to simulate the process of mixing and capture the information of velocity and temperature. The simulation results and measured data of the mean value of velocity and temperature were analyzed and compared, and are in a good agreement, which indicates that the RNG k-ε model combined with the heat transfer model can well simulate the hydraulic characteristics and heat transfer mechanism of hot and cold fluids in a tee junction. Furthermore, the upstream segment of a tee junction has two …
Developing Highly Efficient Industrial Contact Heat Exchanger, Khoshim Shayimovich Bakhronov, Abdumalik Abduvahobovich Akhmatov, Yorkin Bakhodirovich Kadirov
Developing Highly Efficient Industrial Contact Heat Exchanger, Khoshim Shayimovich Bakhronov, Abdumalik Abduvahobovich Akhmatov, Yorkin Bakhodirovich Kadirov
Chemical Technology, Control and Management
The paper presents the results of an experimental study of the intensification of heat transfer of a swirling flow in a cylindrical channel with two tangential and axial swirlers. During the experiments, such parameters were measured as: air flow in front of the vortex apparatus; hot water consumption; pressure drop in the vortex apparatus; temperature of working media at the inlet to the apparatus and at the outlet of it. A method for intensifying the heat transfer process, which is based on swirling a gas stream by its tangential supply, has been developed and investigated. Experimental studies of the intensity …
Fluid Flow, Heat And Mass Transfer In Hot Dip Galvanizing Bath, Shouqun Sun, Zhongshuang Wei, Huayang Lu
Fluid Flow, Heat And Mass Transfer In Hot Dip Galvanizing Bath, Shouqun Sun, Zhongshuang Wei, Huayang Lu
Journal of System Simulation
Abstract: Zinc dross is produced inevitably as a metallurgical phenomenon of continuous hot galvanizing process, and the quality of galvanizing is affected. The phenomenon is closely related to the physical field of molten zinc and more surface defects are easily produced if the zinc dross removal process is improperly handled. By constructing a three-dimensional viscous standard k-ε two equation turbulence model, the fluid flow, heat and mass transfer law and the distribution regularities of flow vortex were obtained under the specific initial conditions and boundary conditions. The simulation results of the observation points are basically in agreement with the experimental …
The Electric Power Production Targeted Unconventional Geothermal Systems (Ugs), Some Conceptual Designs And Their Thermodynamics Classification, Aydın Çi̇çek
Bulletin of the Mineral Research and Exploration
The geothermal energy is a renewable and relatively clean energy resource. The amount of geothermal energy stored just in the upper crust of the earth is large enough to meet the world’s energy needs for thousands of years. Unfortunately, only a small portion of this potential can be utilized today by the conventional methods. The rest corresponds to the hot, fluid-poor areas which cannot be utilized by the current technology. The first concrete steps towards the utilization of such high potential areas emerged in the late 1960s and early 1970s. These studies have gradually continued in the following years, and …
A Mathematical Modeling Of Infrared Neural Stimulation, Cesil S. Alex
A Mathematical Modeling Of Infrared Neural Stimulation, Cesil S. Alex
Undergraduate Journal of Mathematical Modeling: One + Two
Electrical stimulation is the gold standard for artificial neural stimulation. The greatest disadvantage with electrical stimulation is that it scatters in space and it is difficult to achieve specific point stimulation. Recently, infrared stimulation attracted attention to address this issue. Infrared stimulation works on the principle of heating the tissue, exploiting the energy of infrared lasers to heat the cellular aqueous solution that helps transfer the energy to the cell membrane without direct contact, and provides a discrete localization of stimulation as it does not spread in space like electric fields. In the present study, a heat transfer model for …
Calculation Of Heat Exchange Intensity At Gas-Liquid Flow Washing Tube-Lattice Nozzles, Elbek Tulkinovich Mavlonov, Zakirova Nafisa Sanatovna, Kudratilla Fuadovich Karimov, Khabibulla Sagdullaevich Nurmukhamedov
Calculation Of Heat Exchange Intensity At Gas-Liquid Flow Washing Tube-Lattice Nozzles, Elbek Tulkinovich Mavlonov, Zakirova Nafisa Sanatovna, Kudratilla Fuadovich Karimov, Khabibulla Sagdullaevich Nurmukhamedov
Chemical Technology, Control and Management
Several experiments were conducted on removing the heat of reaction upon contact of carbon dioxide with purified brine. Pipes with a developed heat exchange surface formed by spiral grooves on the outside and similar protrusions inside the pipes are used for effective conduction. The experiments were carried out on two and four pipes with different pitch and depth of grooves,i.e. h / S = 0.017-0.095. Studies on the intensification of convective heat exchange when washing a bundle of spiral-rolled pipes with a gas-liquid flow have found an increase in heat transfer by 1.8-2.7 times compared to a smooth pipe. Such …
Radiation And Convective Losses In The Heat Sink Channel Of Photovoltaic-Thermal System, Oskar F. Tukhfatullin, Ramizulla A. Muminov
Radiation And Convective Losses In The Heat Sink Channel Of Photovoltaic-Thermal System, Oskar F. Tukhfatullin, Ramizulla A. Muminov
Euroasian Journal of Semiconductors Science and Engineering
. The processes of heat transfer in the channel of a liquid photovoltaic/thermal system of a flat construction without forced circulation are considered. A method of calculating the heat transfer coefficients by radiation and convection, the Nusselt and Reynolds numbers for a given photovoltaic/thermal system was proposed. It was determined that the processes of convective heat transfer in a flat photovoltaic/thermal system installed in the territory of the Republic of Uzbekistan at an optimum angle of inclination equal to the geographical latitude of the place of operation should be considered as for parallel plates located at tilt angle not more …
Radiation And Convective Losses In The Heat Sink Channel Of Photovoltaic-Thermal System, Oskar F. Tukhfatullin, Ramizulla A. Muminov
Radiation And Convective Losses In The Heat Sink Channel Of Photovoltaic-Thermal System, Oskar F. Tukhfatullin, Ramizulla A. Muminov
Euroasian Journal of Semiconductors Science and Engineering
. The processes of heat transfer in the channel of a liquid photovoltaic/thermal system of a flat construction without forced circulation are considered. A method of calculating the heat transfer coefficients by radiation and convection, the Nusselt and Reynolds numbers for a given photovoltaic/thermal system was proposed. It was determined that the processes of convective heat transfer in a flat photovoltaic/thermal system installed in the territory of the Republic of Uzbekistan at an optimum angle of inclination equal to the geographical latitude of the place of operation should be considered as for parallel plates located at tilt angle not more …
Numerical Modeling Of Heat And Mass Transfer With A Single-Phase Flow In A Porous Cavity, Mohamed F. El-Amin, Shereen Abdel-Naeem, Nehma A. Ebrahiem
Numerical Modeling Of Heat And Mass Transfer With A Single-Phase Flow In A Porous Cavity, Mohamed F. El-Amin, Shereen Abdel-Naeem, Nehma A. Ebrahiem
Applied Mathematics & Information Sciences
This work is intended to study the problem of heat and mass transfer with single-phase flow in a porous cavity. The model of this problem consists of the conservation laws of energy, momentum, and mass. The cavity boundaries are described by mixed Dirichlet-Neumann boundary conditions. The momentum equation which is represented by Darcy’s law has been solved with the continuity equation to give the pressure implicitly, then the velocity of the field has been calculated explicitly. Therefore, both energy equation and concentration equations are solved implicitly. The multiscale time-splitting implicit method has been used to treat the temporal discretization of …
Joule Heat Parameter Effects On Unsteady Mhd Flow Over A Stretching Sheet With Viscous Dissipation And Heat Source, Srinivas Maripala, Kishan Naikoti
Joule Heat Parameter Effects On Unsteady Mhd Flow Over A Stretching Sheet With Viscous Dissipation And Heat Source, Srinivas Maripala, Kishan Naikoti
Applications and Applied Mathematics: An International Journal (AAM)
In the present investigation, we studied the effects of heat source and Joule heating parameter on unsteady magneto-hydro-dynamic and heat transfer of a fluid flow over a radiating stretching sheet. The governing partial differential equations of nonlinear with boundary conditions are solved numerically by implicit finite difference method with Gauss Seidel iteration scheme. The obtained numerical solutions of velocity and temperature profiles are discussed and represented graphically. The effects of various parameters on the velocity and temperature profiles are shown graphically and numerical values of physical quantities such as the skin friction coefficient and the local Nusselt number are presented …
Optimal Homotopy Asymptotic Solution For Thermal Radiation And Chemical Reaction Effects On Electrical Mhd Jeffrey Fluid Flow Over A Stretching Sheet Through Porous Media With Heat Source, Gossaye Aliy, Naikoti Kishan
Optimal Homotopy Asymptotic Solution For Thermal Radiation And Chemical Reaction Effects On Electrical Mhd Jeffrey Fluid Flow Over A Stretching Sheet Through Porous Media With Heat Source, Gossaye Aliy, Naikoti Kishan
Applications and Applied Mathematics: An International Journal (AAM)
In this paper, the problem of thermal radiation and chemical reaction effects on electrical MHD Jeffrey fluid flow over a stretching surface through a porous medium with the heat source is presented. We obtained the approximate analytical solution of the nonlinear differential equations governing the problem using the Optimal Homotopy Asymptotic Method (OHAM). Comparison of results has been made with the numerical solutions from the literature, and a very good agreement has been observed. Subsequently, effects of governing parameters of the velocity, temperature and concentration profiles are presented graphically and discussed.
Heat Transfer Simulation Of Vehicle Heat Exchanger In Plateau Environment, Xu Xiang, Wenchao Suo, Dingfu Yang, Surong Dong
Heat Transfer Simulation Of Vehicle Heat Exchanger In Plateau Environment, Xu Xiang, Wenchao Suo, Dingfu Yang, Surong Dong
Journal of System Simulation
Abstract: The effect of heat transfer caused by plateau environment in vehicle heat exchanger was investigated. The heat transfer equation for heat exchanger was modified by introducing air parameters at different altitudes. A heat transfer modeling approach for vehicle heat exchanger was proposed by using the thermal network method. The heat transfer effect of the plateau and the flow state of fluid medium were analyzed in the vehicle heat exchanger by using the simulation software FlowMaster. Simulation results show that the decrease of pressure and density of air in altitude was the primary cause to heat transfer ability. …
Using The Entropy Rate Balance To Determine The Heat Transfer And Work In An Internally Reversible, Polytropic, Steady State Flow Process, Savannah Griffin
Using The Entropy Rate Balance To Determine The Heat Transfer And Work In An Internally Reversible, Polytropic, Steady State Flow Process, Savannah Griffin
Undergraduate Journal of Mathematical Modeling: One + Two
The entropy rate equation for internally reversible steady state flow process has been used to calculate the heat transfer and work in an internally reversible, polytropic, steady state flow process.