Calculation of Temperature Distributions Within Cable Trench Backfill and the Surrounding Soil

Tarasiewicz, E.; Kuffel, E.; Grzybowski, S.

doi:10.1109/tpas.1985.318770

Cited by 33 publications

(3 citation statements)

References 3 publications

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“…Reference [10] calculated the conductor temperature for a typical water-cooled cable buried in a flat horizontal arrangement, and the simulation results showed that water-cooled pipes can effectively increase the ampacity. However, the thermal conductivity of water is not enough to meet the existing load demand, so existing studies have used different high-thermal-conductivity materials to reduce the thermal resistance of the external environment to improve the ampacity, and the improvement effect has been verified by experiments or finite element simulation [11][12][13][14][15][16][17][18][19]. In [20], an electromagnetic thermal coupling model of two parallel cables was established using the finite element method.…”

Section: Introductionmentioning

confidence: 99%

Research on the Improvement of Cable Ampacity in Dense Cable Trench

Zhang,

Yu,

Liu

et al. 2024

Energies

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Due to the influence of many factors, distribution cables are often densely placed at the bottom of the cable trench. As a result, it is easy for distribution cables to become the thermal bottleneck of the whole transmission line. To address this dilemma, this paper establishes a finite element simulation model of a cable trench to analyze the hot spots of cables with different arrangements in the cable trench. Then, the model’s accuracy is verified based on real temperature rise experiments. For an arrangement with overheating risk, the ampacity improvement method of filling the cable trench with high-thermal-conductivity material was proposed, and the ampacity improvement effect under different filling ratios was assessed. Finally, combined with the analysis of economic benefit and cost, the method of determining the optimal filling ratio was used, and the impact resistance of the cables under the impact of new energy load was analyzed. The results indicate that, for the case of the optimal filling ratio, the cables in the dense cable trench showed superior impact resistance. The investigations in this paper make significant contributions to the promotion of the maximum utilization of cables.

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Section: Introductionmentioning

confidence: 99%

Research on the Improvement of Cable Ampacity in Dense Cable Trench

Zhang,

Yu,

Liu

et al. 2024

Energies

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“…A stochastic optimisation algorithm based on radial basis function interpolating scattered multi-quadric ampacity approximations has been reported in [26]. Methods based on probability distribution investigated the influence of statistical variations of various soil, boundary and loading conditions on the cable temperature have been described in [27,28].The work on refining cable ampacity computation is being continued via experimental studies to fine-tune some of the computational formulas and thermal parameters and overcome the approximation inherent by the assumption of fixed values of temperaturedependent parameters [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

PSO of power cable performance in complex surroundings

Al-Saud

2018

IET Generation, Transmission & Distribution

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“…Because of tight economical constraints and limitations on space availability, public utilities and manufactures around the world are striving to attain higher cable ampacity through improved designs. At the same time, it is desirable to achieve better accuracy of cable parameter values so that the simulated results match as closely as possible to actual performances [1][2][3][4][5]. One effective way of offsetting the effect of over-conservativeness in the cable designs and, therefore achieving better cable utilization, is to improve the accuracy of the ampacity calculations via better modeling and solution methodologies.…”

Section: Introductionmentioning

confidence: 99%

A New Method to Cable Performance Assessment

Sun

Wang

Meng

et al. 2012

AMR

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This paper presents a new approach to thermal field sensitivities and ampacity computations of underground power cables using a proposed algorithm of perturbed finite-element analysis. Domain-specific visual language tools have become important in many domains of software engineering and end user development. Numerical results show that the most significant randomness comes from thermal loads and also that the amount of uncertainty decreases from input to output. We will show that the object-oriented programming greatly simplifies the choice and the implementation of other formalisms concerning polyarticulated systems, thus conferring high flexibility and adaptability to the developed software.Such experimental verification confirmed the accuracy of the new introduced finite-element sensitivity methodology.

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Calculation of Temperature Distributions Within Cable Trench Backfill and the Surrounding Soil

Cited by 33 publications

References 3 publications

Research on the Improvement of Cable Ampacity in Dense Cable Trench

Research on the Improvement of Cable Ampacity in Dense Cable Trench

PSO of power cable performance in complex surroundings

A New Method to Cable Performance Assessment

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