کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4991082 | 1457108 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical investigation and optimization of heat transfer and exergy loss in shell and helical tube heat exchanger
ترجمه فارسی عنوان
بررسی عددی و بهینه سازی انتقال حرارت و از دست رفتن اگزرژی در مبدل حرارتی پوسته و اسپلیت
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کلمات کلیدی
مبدل حرارتی لوله ای انتقال گرما، از دست دادن اگزرژ، رویکرد تاگوچی، بهینه سازی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In this research paper, numerical model of shell and helical tube heat exchanger is investigated to assess heat transfer coefficient and exergy loss. Four design parameters including pitch coil, tube diameter, hot and cold flow rate, which are more significant for the heat exchanger performance, were taken to consideration. Then, Taguchi approach is applied to figure out the optimum levels of the design factors. Sixteen cases with diverse design parameters are modeled and analyzed numerically. The results are indicated that tube diameter and cold flow rate are the most significant design parameters of heat transfer and exergy loss, respectively. Furthermore, the highest Nusselt number are achieved by more both cold and hot flow rates and also, heat transfer coefficient are reduced by increasing of pitch coil as well as by increasing of hot flow rate, the exergy loss increases. The optimum levels for heat transfer coefficient are: pitch 13Â mm, tube diameter 12Â mm, cold and hot flow rate 4Â LPM. Furthermore, the optimum level for exergy loss are: pitch 13Â mm, tube diameter 12Â mm, cold and hot flow rate 1Â LPM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 121, 5 July 2017, Pages 294-301
Journal: Applied Thermal Engineering - Volume 121, 5 July 2017, Pages 294-301
نویسندگان
Mir Majid Etghani, Seyed Amir Hosseini Baboli,