Hydraulic-Thermal Performance of a Double Pipe Heat Exchanger Filled with Annular Metal Foam

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

This study is an experimental attempt to improve the performance of a double-pipe type heat exchanger, by placing copper-metal foam with various configurations inside an annular space between the inner pipe and the outer pipe of the heat exchanger. The test section consists of two concentric pipes with a length of 500 mm, the inner pipe is made of copper with nominal diameter of 18 mm, and the outer pipe is 42 mm in diameter and is made of plastic. A copper metal foam with 15 pore per inch, and a porosity of 0.95 was used.Air was used as a working fluid in both hot and cold streams. A wide range of cold air flow rate was covered, namely; (3, 6, 12, 18, 24, 30, and 36) m3/h, which corresponds to Reynolds number ranged from 2811 to 31,335. Whereas the hot air flow rate was kept constant at 3 m3/h. The temperature difference between the inlet hot air and inlet cold air was adopted to be (20°C, 30°C, 40°C, and 50°C). The results reveal that the heat transfer, pressure drop and effectiveness depend on the configuration of the metal foam. Also, the heat transfer rate of the heat exchanger with the metal foam for all the arrangements is the greater than the smooth heat exchanger. The friction factor is higher when the metal foam is used than the smooth heat exchanger. The friction factor is found to be affected strongly by the metal foam configuration more than metal foam amount. It also decreases with increasing Reynolds numbers. The results also show that the best performance evaluation criteria is 1.62 for case 7 at lowest Reynolds number 2800.

روابط وملفات

التعريف والنوع

رقم الوثيقة

fb1674a1-3882-4e02-80c0-cb8ac0b4558b

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

2300790_1.pdf

بيانات النشر

ترجمة العنوان

الاداء الهيدروليكي الحراري لمبادل حراري مزدوج الانبوب مملوء بحلقات الرغوة المعدنية

ألقاب المؤلفين

[{"name_ar":"Hameed Farhan Thaer","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"حمدي عماد الدين احمد","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"عبيد طلك فاضل","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Hydraulic-Thermal Performance of a Double Pipe Heat Exchanger Filled with Annular Metal Foam

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

حمدي عماد الدين احمد, عبيد طلك فاضل

الإعداد

Hameed Farhan Thaer

الاقتباسات الببليوغرافية