An analytical algorithm to determine allowable ampacities of horizontally installed rectangular bus bars
The main objective of this paper is to propose an algorithm for the determination of the allowable ampacities of single rectangular-section bus bars without the occurrence of correction factors. Without correction factors, the ampacity computation of the copper and aluminium bus bars is fully automa...
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| Veröffentlicht in: | Thermal science 2016-01, Vol.20 (2), p.717-730 |
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| creator | Klimenta, Dardan Perovic, Bojan Jevtic, Miroljub Radosavljevic, Jordan |
| description | The main objective of this paper is to propose an algorithm for the determination of the allowable ampacities of single rectangular-section bus bars without the occurrence of correction factors. Without correction factors, the ampacity computation of the copper and aluminium bus bars is fully automatized. The analytical algorithm has been implemented in a computer program code that along with the allowable ampacity can compute the bus bar temperature and the individual heat transfer coefficient for each side of the bus bar, as well as their corresponding power losses. Natural and forced convection correlations for rectangular bus bars are applied. Effects of the solar radiation and radiation heat losses from the bus bar surface are taken into consideration as well. The finite element method (FEM) has been used for the linear/non-linear steady-state thermal analysis, i.e. for validation of the analytical algorithm. All FEM-based numerical computations were carried out using the COMSOL Heat Transfer Module. [Projekat Ministarstva nauke Republike Srbije, br. TR33046] |
| doi_str_mv | 10.2298/TSCI140829127K |
| format | Article |
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Without correction factors, the ampacity computation of the copper and aluminium bus bars is fully automatized. The analytical algorithm has been implemented in a computer program code that along with the allowable ampacity can compute the bus bar temperature and the individual heat transfer coefficient for each side of the bus bar, as well as their corresponding power losses. Natural and forced convection correlations for rectangular bus bars are applied. Effects of the solar radiation and radiation heat losses from the bus bar surface are taken into consideration as well. The finite element method (FEM) has been used for the linear/non-linear steady-state thermal analysis, i.e. for validation of the analytical algorithm. All FEM-based numerical computations were carried out using the COMSOL Heat Transfer Module. [Projekat Ministarstva nauke Republike Srbije, br. 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| source | EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry |
| subjects | Algorithms Aluminum Bars Buses (vehicles) Data buses Finite element method Forced convection Heat transfer coefficients Mathematical analysis Mathematical models Nonlinear analysis Solar radiation Thermal analysis |
| title | An analytical algorithm to determine allowable ampacities of horizontally installed rectangular bus bars |
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