Numerical modelling of the natural ventilation of underground transformer substations

被引：27

作者：

Carlos Ramos, Juan ^{[1
]}

Beiza, Maximiliano ^{[1
]}

Gastelurrutia, Jon ^{[1
]}

Rivas, Alejandro ^{[1
]}

Anton, Raul ^{[1
]}

Larraona, Gorka S. ^{[1
]}

de Miguel, Ivan ^{[2
]}

机构：

[1] Univ Navarra, TECNUN, Dept Mech Engn, Thermal & Fluids Engn Div, San Sebastian 20018, Spain

[2] Ormazabal Distribuc Secundaria, Igorre 48140, Spain

来源：

APPLIED THERMAL ENGINEERING | 2013年 / 51卷 / 1-2期

关键词：

Thermal modelling; Transformer substation; Natural ventilation; CFD; THERMAL-MODEL; CONVECTION;

D O I：

10.1016/j.applthermaleng.2012.10.032

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Ventilation by natural convection of two underground transformer substations has been numerically modelled. The model has been verified in terms of discretization errors and it has been validated with the experimental results of eight temperature rise tests carried out under different conditions of ventilation and transformer power losses. The results of the simulations serve to analyse the air flow pattern and the air temperature distributions inside the substation. A correlation for the air mass flow rate as a function of the ventilation conditions (discharge coefficient and area of the grilles) and the heat dissipated by the transformer has been fitted. The heat transfer coefficients on the surfaces of the transformer and the walls of the enclosure can also be obtained from the simulations of the model. All this information will be used in a future paper to develop a zonal thermal model of the ventilation of the substations that can be employed as a design and optimisation tool. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：852 / 863

页数：12

共 26 条

[1]

[Anonymous], 2006, US GUID

[2]

[Anonymous], 2006, 622712022006 IEC

[3]

[Anonymous], 1997, 6007621997 IEC

[4] A modified low-Reynolds-number turbulence model applicable to recirculating flow in pipe expansion [J].

Chang, KC ;

Hsieh, WD ;

Chen, CS .

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 1995, 117 (03) :417-423

[5]

Choudhury D., 1973, INTRO RENORMALIZATIO

[6]

Ferziger J.H., 2002, COMPUTATIONAL METHOD, P157, DOI 10.1007/978-3-642-56026-2{\\\\_{7

[7] Zonal thermal model of distribution transformer cooling [J].

Gastelurrutia, Jon ;

Carlos Ramos, Juan ;

Rivas, Alejandro ;

Larraona, Gorka S. ;

Izagirre, Josu ;

del Rio, Luis .

APPLIED THERMAL ENGINEERING, 2011, 31 (17-18) :4024-4035

[8] Numerical modelling of natural convection of oil inside distribution transformers [J].

Gastelurrutia, Jon ;

Carlos Ramos, Juan ;

Larraona, Gorka S. ;

Rivas, Alejandro ;

Izagirre, Josu ;

del Rio, Luis .

APPLIED THERMAL ENGINEERING, 2011, 31 (04) :493-505

[9] COMPARISON EXERCISE FOR COMPUTATIONS OF TURBULENT NATURAL-CONVECTION IN ENCLOSURES [J].

HENKES, RAWM ;

HOOGENDOORN, CJ .

NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS, 1995, 28 (01) :59-78

[10]

HUTCHINSON BR, 1986, NUMER HEAT TRANSFER, V9, P511, DOI 10.1080/10407788608913491

← 1 2 3 →