Heat Transfer Simulation Using PSpice

2003 ◽  
Author(s):  
Shuhui Li ◽  
Rajab Challoo ◽  
Robert A. McLauchlan
Keyword(s):  
Heat Transfer ◽  
Energy Flow ◽  
Large Scale ◽  
Network Models ◽  
Heat Transfer Analysis ◽  
Electric Circuits ◽  
Transfer Equations ◽  
Heat Transfer Simulation ◽  
Almost All ◽  
Transfer Problems

Heat transfer considerations are important in almost all areas of technology. However, heat transfer analysis can be very difficult for complicated systems such as very large-scale integrated (VLSI) electric circuits and systems, making the simulation an attractive technique for studying heat transfer of those systems. This paper presents methods of heat transfer simulation using PSpice. First, typical heat transfer modes are discussed and heat transfer equations are presented. Then, equivalent electrical models are developed, and PSpice representations of those models are investigated. Finite-difference RC network models are developed and used for the simulation of complicated heat transfer problems using PSpice. Two typical heat transfer examples are studied. Simulations are performed to investigate and study the heat transfer and energy flow of the two examples using PSpice.

Numerical simulation of heat transfer in loaded heat treatment furnaces

2004 ◽  
Vol 120 ◽  
pp. 545-553
Author(s):  
J. Kang ◽  
Y. K. Rong ◽  
W. Wang
Keyword(s):  
Heat Transfer ◽  
Heat Treatment ◽  
Heating Process ◽  
View Factor ◽  
Direct Integral ◽  
3 Dimensional ◽  
Prediction And Control ◽  
Heat Transfer Simulation ◽  
Transfer Problems ◽  
And Control

Heat transfer simulation within heat treatment furnaces is of great significance for the prediction and control of the ultimate microstructure, properties and dimensional stability of the workpieces and even the performance of furnaces. In this paper a set of models is proposed to solve heat transfer problems in a loaded furnace, including radiation, convection and conduction. Furthermore, a 3-dimensional algorithm based on finite difference method (FDM) is presented with a complete system for process simulation system. In the radiation module, view factor is calculated by direct integral method for all element pairs exposed to each other based on the blocking judgment. Combustion in gas-fired furnace and PID control are also included in the furnace model. The heat transfer models are integrated with furnace model to simulate the heating process of workpieces. Temperature distribution in workpiece and its variation with time are predicted by the system. An experiment is carried out for the validation of the system.

Steady Heat Transfer Analysis of Leaf Spring Rotary Engine

2012 ◽  
Vol 157-158 ◽  
pp. 901-906
Author(s):  
Dong Jie Wang ◽  
Zheng Xing Zuo
Keyword(s):  
Heat Transfer ◽  
Performance Optimization ◽  
Heat Transfer Analysis ◽  
Leaf Spring ◽  
Transfer Model ◽  
Ideal Condition ◽  
Transfer Condition ◽  
Rotary Engine ◽  
Heat Transfer Simulation ◽  
Steady Heat

This paper presents the heat transfer simulation of a new kind of rotary engine called Leaf Spring Rotary Engine. The structure and the principle of the prototype engine were introduced. The thermodynamic models including heat transfer model were presented. The contrast of the performance parameters between the heat transfer condition and the ideal condition was presented and the effect of the heat transfer to the performance of the engine was analyzed. It showed that the heat transfer loss would account for 24% of the input energy at the rated speed of 3000r/min. At the same time, the effect of ignition position to the performance of the engine was analyzed. The work would be used in the combustion system design and the performance optimization.

Do We Really Need “Entransy”? A Critical Assessment of a New Quantity in Heat Transfer Analysis

2014 ◽  
Vol 136 (4) ◽  
Author(s):  
H. Herwig
Keyword(s):  
Heat Transfer ◽  
Classical Theory ◽  
Critical Assessment ◽  
Heat Transfer Analysis ◽  
Classical Approach ◽  
The Past ◽  
Transfer Problems

Recently, a group of scientists introduced a new quantity for the analysis of heat transfer problems. They called it entransy since according to their understanding it is both, an indication of the nature of energy as well as that of the heat transfer ability. This concept is critically assessed on the background of two questions: Is entransy as an extension of the well established theory of heat transfer consistent with this classical approach? And: Is there a real need for the extension of the classical theory by introducing entransy as a quantity that was missing in the past?

Simplified heat transfer analysis method for large-scale boreholes ground heat exchangers

2016 ◽  
Vol 116 ◽  
pp. 593-601 ◽  
Author(s):  
Yu Mingzhi ◽  
Ma Tengteng ◽  
Zhang Kai ◽  
Cui Ping ◽  
Hu Aijuan ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchangers ◽  
Large Scale ◽  
Heat Transfer Analysis ◽  
Analysis Method ◽  
Ground Heat Exchangers

scholarly journals A Scalable Balancing Domain Decomposition Based Preconditioner for Large Scale Heat Transfer Problems

2006 ◽  
Vol 49 (2) ◽  
pp. 533-540 ◽  
Author(s):  
Abul Mukid Mohammad MUKADDES ◽  
Masao OGINO ◽  
Hiroshi KANAYAMA ◽  
Ryuji SHIOYA
Keyword(s):  
Heat Transfer ◽  
Domain Decomposition ◽  
Large Scale ◽  
Balancing Domain Decomposition ◽  
Transfer Problems

scholarly journals Efficient Simulations of Large Scale Convective Heat Transfer Problems

2021 ◽  
Vol 22 (4) ◽  
Author(s):  
Damian Goik ◽  
Krzysztof Banaś ◽  
Jan Bielański ◽  
Kazimierz Chłoń
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Large Scale ◽  
Stokes Equations ◽  
Parallel Implementation ◽  
Navier Stokes ◽  
Flow Equations ◽  
Transfer Problems

We describe an approach for efficient solution of large scale convective heat transfer problems, formulated as coupled unsteady heat conduction and incompressible fluid flow equations. The original problem is discretized in time using classical implicit methods, while stabilized finite elements are used for space discretization. The algorithm employed for the discretization of the fluid flow problem uses Picard's iterations to solve the arising nonlinear equations. Both problems, heat transfer and Navier-Stokes quations, give rise to large sparse systems of linear equations. The systems are solved using iterative GMRES solver with suitable preconditioning. For the incompressible flow equations we employ a special preconditioner based on algebraic multigrid (AMG) technique. The paper presents algorithmic and implementation details of the solution procedure, which is suitably tuned, especially for ill conditioned systems arising from discretizations of incompressible Navier-Stokes equations. We describe parallel implementation of the solver using MPI and elements of PETSC library. The scalability of the solver is favourably compared with other methods such as direct solvers and standard GMRES method with ILU preconditioning.  

scholarly journals A variational iteration method integral transform technique for handling heat transfer problems

2017 ◽  
Vol 21 (suppl. 1) ◽  
pp. 55-61 ◽  
Author(s):  
Yuejin Zhou ◽  
Shun Pang ◽  
Guo Chong ◽  
Xiaojun Yang ◽  
Xiaoding Xu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Iteration Method ◽  
Integral Transform ◽  
Variational Iteration Method ◽  
Approximate Solutions ◽  
Excess Temperature ◽  
Variational Iteration ◽  
Transfer Equations ◽  
Transfer Problems ◽  
Integral Transform Technique

In this paper, we consider the heat transfer equations at the low excess temperature. The variational iteration method integral transform technique is used to find the approximate solutions for the problems. The used method is accurate and efficient.

scholarly journals The integrating factor method for solving the steady heat transfer problems in fractal media

2016 ◽  
Vol 20 (suppl. 3) ◽  
pp. 729-733
Author(s):  
Shan-Xiong Chen ◽  
Zhi-Hao Tang ◽  
Hai-Ning Wang
Keyword(s):  
Heat Transfer ◽  
Fractional Derivative ◽  
Integrating Factor ◽  
Factor Method ◽  
Fractal Media ◽  
Transfer Equations ◽  
Constant Coefficients ◽  
Transfer Problems ◽  
First Time ◽  
Steady Heat

In this paper, we propose the integrating factor method via local fractional derivative for the first time. We use the proposed method to handle the steady heat-transfer equations in fractal media with the constant coefficients. Finally, we discuss the non-differentiable behaviors of fractal heat-transfer problems.

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