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Heat transfer augmentation in gas turbine blade rectangular passages using circular ribs with fins
المؤلفون المشاركون
Husayn, Hasan Qahtan
Rashid, Farhan Laftah
al-Jabburi, Muhammad Wahhab
المصدر
Journal of University of Babylon for Engineering Sciences
العدد
المجلد 26، العدد 1 (31 يناير/كانون الثاني 2018)، ص ص. 247-258، 12ص.
الناشر
تاريخ النشر
2018-01-31
دولة النشر
العراق
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
In this paper, an experimental system was designed and built to simulate conditions in the gas turbine blade cooling and run the experimental part.
Boundary conditions are: inlet coolant air temperature is 300K with Reynolds numbers (Re=7901) .The surrounding constant hot air temperatures was (673 K).The numerical simulations were done by using software FLUENT version (14.5), in this part, it was presented the effect of using circular ribs having middle fin fitted in rectangular passage channel on fluid flow and heat transfer characteristics.
Ribs used with pitch-rib height of 10, rectangular channel of (30x60 mm) cross section, 1.5 mm duct thickness and 0.5 m long.
The temperature, velocity distribution contours, cooling air temperature distribution at the duct centerline, the inner wall surface temperature of the duct, and thermal performance factor are presented in this paper.
it can be seen that the duct with all ribs with middle fins was the better case which leads to increase the coolant air temperature by (10.22 %) and decrease the inner wall temperature by (6.15 % ).
The coolant air flow velocity seems to be accelerated and decelerated through the channel in the presence of ribs, so it was shown that the thermal performance factor along the duct is larger than 1, this is due to the fact that the ribs create turbulent conditions and increasing thermal surface area, and thus increasing heat transfer coefficient than the smooth channel.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Jabburi, Muhammad Wahhab& Rashid, Farhan Laftah& Husayn, Hasan Qahtan. 2018. Heat transfer augmentation in gas turbine blade rectangular passages using circular ribs with fins. Journal of University of Babylon for Engineering Sciences،Vol. 26, no. 1, pp.247-258.
https://search.emarefa.net/detail/BIM-918135
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Jabburi, Muhammad Wahhab…[et al.]. Heat transfer augmentation in gas turbine blade rectangular passages using circular ribs with fins. Journal of University of Babylon for Engineering Sciences Vol. 26, no. 1 (2018), pp.247-258.
https://search.emarefa.net/detail/BIM-918135
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Jabburi, Muhammad Wahhab& Rashid, Farhan Laftah& Husayn, Hasan Qahtan. Heat transfer augmentation in gas turbine blade rectangular passages using circular ribs with fins. Journal of University of Babylon for Engineering Sciences. 2018. Vol. 26, no. 1, pp.247-258.
https://search.emarefa.net/detail/BIM-918135
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 257-258
رقم السجل
BIM-918135
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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