Analysis of external heat dissipation enhancement of oil-immersed transformer based on falling film measure

Li, Yingguang; Zhou, Zeru; Lin, Biren; Zhang, Hao; Huo, Weifeng; Deng, Honglei; Liu, Gang

doi:10.2298/tsci211015041l

Cited by 2 publications

(1 citation statement)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Liu [8] and Liang [9] , for the heat dissipation effect of the transformer, adopt forced air cooling measures, and use aerodynamics to control the temperature or speed of the wind to achieve the purpose of cooling. Li [10] and others use the falling film method to cool the top oil temperature and hot spot temperature. This falling film method can reduce the above temperature by a large extent and meet the load requirements of oil-immersed transformer.…”

Section: Introductionmentioning

confidence: 99%

Research on control of indoor temperature of transformer based on model prediction

Zhao,

Liu,

Guo

et al. 2023

Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023)

View full text Add to dashboard Cite

With the increasing demand for power supply, it is particularly important to control the indoor temperature of substations in summer. In this paper, the temperature in the transformer room is studied: firstly, the transfer function of the transformer room ambient temperature is given, in which the influence of the transformer heat loss on the output variation is fully considered. Secondly, the model prediction method is used to control the input and output changes of the mathematical model. In order to achieve the control objectives, the constraint conditions of the variables are given in the control process. Finally, the experiment shows that the model predictive control method can control the output variation in a small range, which proves the effectiveness and accuracy of the model predictive control method for transformer room temperature.

show abstract

Section: Introductionmentioning

confidence: 99%

Research on control of indoor temperature of transformer based on model prediction

Zhao,

Liu,

Guo

et al. 2023

Second International Conference on Energy, Power, and Electrical Technology (ICEPET 2023)

View full text Add to dashboard Cite

show abstract

Numerical study of cooling performance augmentation for panel-type radiator under the chimney effect

Si,

Jin,

Shou

et al. 2024

THERM SCI

View full text Add to dashboard Cite

In order to augment cooling performance of transformer panel-type radiators under natural convection, the fluid flow and heat transfer for a novel panel-type radiator and its surrounding air are numerically studied in this paper. The novel radiator is equipped with wind deflectors on both lateral sides and a chimney cap on the top. Then the effects of the height and channel number of the chimney cap on the cooling performance of the radiator are simulated. The results show that wind deflectors can form several enclosed air channels with radiator fins. The airflow can be accelerated under the chimney effect generated in these channels, and the cooling capacity of the radiator can be increased by 12.75%. The addition of a chimney cap can further extend the chimney channels and increase its cooling capacity by 15.74%. Furthermore, with the increase of the height and channel number, the total cooling capacity of the panel-type radiator increases first and then decreases. In this study, when the chimney cap has five channels and a height of 700 mm, the novel radiator can obtain the best cooling performance, where its cooling capacity and overall heat transfer coefficient can be increased by 26.54% and 28.21%, respectively, as compared with traditional panel-type radiators, and the temperature difference between the inlet and outlet insulating oil is 7.1?C.

show abstract

Analysis of external heat dissipation enhancement of oil-immersed transformer based on falling film measure

Cited by 2 publications

References 26 publications

Research on control of indoor temperature of transformer based on model prediction

Research on control of indoor temperature of transformer based on model prediction

Numerical study of cooling performance augmentation for panel-type radiator under the chimney effect

Contact Info

Product

Resources

About