کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
644795 | 1457134 | 2016 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Full surface heat transfer characteristics of rotor ventilation duct of a turbine generator
ترجمه فارسی عنوان
خصوصیات انتقال حرارت کامل سطحی از کانال تهویه روتور یک ژنراتور توربین
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کلمات کلیدی
خنک کننده ژنراتور، مجرای روتاری کانال نسبتا بالا، تست انتقال حرارت گذرا،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The present work reports the investigation on the cooling performance of rotor ventilation duct of turbine generator. An investigation using experimental and analytical approaches was carried out to understand the flow and heat transfer characteristics of a single rotor ventilation duct. For the investigation, the stationary experiments are carried out for the three different conditions of (1) no cross flow (2) inlet cross flow (3) inlet and outlet cross flow followed by CFD analysis for each case. Transient heat transfer experiment using thermochromic liquid crystal (TLC) technique was carried out for measuring heat transfer characteristics. Furthermore, pressure losses are measured. A series of CFD analysis is carried out for validating modeling approach. The CFD results show good agreement with experimental data. Since the experiments were carried out on the stationary condition, the effect of rotation is examined using validated CFD model. Reynolds number is varied in the range of 13100 ~ 21000.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 94, 5 February 2016, Pages 385-394
Journal: Applied Thermal Engineering - Volume 94, 5 February 2016, Pages 385-394
نویسندگان
Wonkyung Yoo, Shinyoung Jeon, Changmin Son, Jangsik Yang, Daihyun Ahn, Sungha Kim, Kyeha Hwang, Sunghoon Ha,