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Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators

This paper presents a nanofluid-based cooling method for a brushless synchronous generator (BLSG) by using Al(2)O(3) lubricating oil. In order to demonstrate the superiority of the nanofluid-based cooling method, analysis of the thermal performance and efficiency of the nanofluid-based cooling syste...

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Autores principales: Xiong, Kai, Li, Yunhua, Li, Yun-Ze, Wang, Ji-Xiang, Mao, Yufeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7514910/
https://www.ncbi.nlm.nih.gov/pubmed/33267134
http://dx.doi.org/10.3390/e21040420
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author Xiong, Kai
Li, Yunhua
Li, Yun-Ze
Wang, Ji-Xiang
Mao, Yufeng
author_facet Xiong, Kai
Li, Yunhua
Li, Yun-Ze
Wang, Ji-Xiang
Mao, Yufeng
author_sort Xiong, Kai
collection PubMed
description This paper presents a nanofluid-based cooling method for a brushless synchronous generator (BLSG) by using Al(2)O(3) lubricating oil. In order to demonstrate the superiority of the nanofluid-based cooling method, analysis of the thermal performance and efficiency of the nanofluid-based cooling system (NBCS) for the BLSG is conducted along with the modeling and simulation cases arranged for NBCS. Compared with the results obtained under the base fluid cooling condition, results show that the nanofluid-based cooling method can reduce the steady-state temperature and power losses in BLSG and decrease the temperature settling time and changing ratio, which demonstrate that both steady-state and transient thermal performance of NBCS are improved as nanoparticle volume fraction (NVF) in nanofluid increases. Besides, although the input power of cycling pumps in NBCS has ~30% increase when the NVF is 10%, the efficiency of the NBCS has a slight increase because the 4.1% reduction in power loss of BLSG is bigger than the total incensement of input power of the cycling pumps. The results illustrate the superiority of the nanofluid-based cooling method, and it indicates that the proposed method has a broad application prospect in the field of thermal control of onboard synchronous generators with high power density.
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spelling pubmed-75149102020-11-09 Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators Xiong, Kai Li, Yunhua Li, Yun-Ze Wang, Ji-Xiang Mao, Yufeng Entropy (Basel) Article This paper presents a nanofluid-based cooling method for a brushless synchronous generator (BLSG) by using Al(2)O(3) lubricating oil. In order to demonstrate the superiority of the nanofluid-based cooling method, analysis of the thermal performance and efficiency of the nanofluid-based cooling system (NBCS) for the BLSG is conducted along with the modeling and simulation cases arranged for NBCS. Compared with the results obtained under the base fluid cooling condition, results show that the nanofluid-based cooling method can reduce the steady-state temperature and power losses in BLSG and decrease the temperature settling time and changing ratio, which demonstrate that both steady-state and transient thermal performance of NBCS are improved as nanoparticle volume fraction (NVF) in nanofluid increases. Besides, although the input power of cycling pumps in NBCS has ~30% increase when the NVF is 10%, the efficiency of the NBCS has a slight increase because the 4.1% reduction in power loss of BLSG is bigger than the total incensement of input power of the cycling pumps. The results illustrate the superiority of the nanofluid-based cooling method, and it indicates that the proposed method has a broad application prospect in the field of thermal control of onboard synchronous generators with high power density. MDPI 2019-04-19 /pmc/articles/PMC7514910/ /pubmed/33267134 http://dx.doi.org/10.3390/e21040420 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Xiong, Kai
Li, Yunhua
Li, Yun-Ze
Wang, Ji-Xiang
Mao, Yufeng
Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators
title Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators
title_full Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators
title_fullStr Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators
title_full_unstemmed Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators
title_short Numerical Investigation on the Thermal Performance of Nanofluid-Based Cooling System for Synchronous Generators
title_sort numerical investigation on the thermal performance of nanofluid-based cooling system for synchronous generators
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7514910/
https://www.ncbi.nlm.nih.gov/pubmed/33267134
http://dx.doi.org/10.3390/e21040420
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