풍력발전기 나셀 내부 전장 시스템 하네스 모듈 대상 열적 민감도 분석Thermal Sensitivity Analysis of Harness Module of Electric Field System Inside Wind turbine Nacelle
- Other Titles
- Thermal Sensitivity Analysis of Harness Module of Electric Field System Inside Wind turbine Nacelle
- Authors
- 문현기; 유병진; 정재호
- Issue Date
- Sep-2021
- Publisher
- 한국풍력에너지학회
- Keywords
- Wind turbine; Nacelle; CFD; Harness module; Thermal sensitivity; 풍력 터빈; 나셀; 전산유체해석; 하네스 모듈; 열적 민감도
- Citation
- 풍력에너지저널, v.12, no.3, pp.19 - 24
- Journal Title
- 풍력에너지저널
- Volume
- 12
- Number
- 3
- Start Page
- 19
- End Page
- 24
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82259
- DOI
- 10.33519/kwea.2021.12.3.003
- ISSN
- 2093-5099
- Abstract
- In this study, thermal sensitivity analysis of the harness module in a wind turbine nacelle was performed through computational fluid dynamics (CFD) using a general-purpose code, ANSYS CFX, based on experimental results. Reynolds-averaged Navier-stokes (RANS) steady flow mulation results for a total of five cases and the experimental results were consistent within an error of 2.24% at the peak temperature increment. A thermal sensitivity study of the Reynolds number of the harness system operating at a low Reynolds number was performed. It was confirmed that the peak temperature increment is linearly related to the inverse of the Nusselt number. Reynolds number correlations for peak temperature and Nusselt number at low Reynolds number are presented. A thermal sensitivity study of the harness module according to the resistance of the circuit was performed, and the peak temperature was reduced by 8.3%. It is expected that decreasing the peak temperature of the harness module by optimization of circuit resistance significantly reduces the probability of fire in a wind turbine nacelle.
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