مهندسی شیمی ایران

مهندسی شیمی ایران

بررسی آزمایشگاهی عملکرد حرارتی- هیدرولیکی چند مایع یونی درون میکرومبدل دولوله‌ای جریان ناهمسو

نوع مقاله : مقاله پژوهشی

نویسندگان
1 دانشجوی کارشناسی ارشد مهندسی شیمی، دانشگاه رازی
2 استادیار مهندسی شیمی، دانشگاه رازی
چکیده
در این تحقیق، اثر مایعات یونی مختلف در تبادل حرارتی، در یک میکرومبدل دولوله­ای جریان ناهمسو به‌صورت آزمایشگاهی در دبی­های مختلف سیال گرم و دو دمای ورودی بررسی‌شده‌است. آزمایش‌ها در یک میکرومبدل دولوله­ای با قطر پوستۀ mm 6 و قطر داخلی میکرولولۀ mm 91/0 و طول cm 50 انجام‌شد. تبادل حرارت میان مایعات یونی 1- هگزیل 3- متیل امیدازولیوم تترافلوئورو بورات ([HMIM] BF4) و 
1- هگزیل3- متیل امیدازولیوم کلراید ([HMIM] Cl)، محلول شورابۀ نمکی، محلول سنگ نمک دریاچۀ ارومیه و آب شهری به‌عنوان سیال گرم درون میکرولوله و آب شهری به‌عنوان سیال سرد درون پوسته بررسی‌شد. برای سیال گرم درون لوله، دو دمای ورودی 60 و °C 70 و دبی حجمی در محدودۀ 0/5 تا mL/min 3/3 درنظرگرفته‌شد. نتایج مربوط‌به ارزیابی ضریب کلی انتقال حرارت نشان‌داد که در دبی‌های مختلف، بیشترین ضریب کلی انتقال حرارت به‌ترتیب مربوط‌به محلول شورابۀ نمکی، [HMIM] BF4،[HMIM] Cl ، محلول سنگ نمک دریاچۀ ارومیه و آب بوده‌است. درحالی­که، بهترین عملکرد حرارتی- هیدرولیکی به‌ترتیب مربوط‌به محلول شورابۀ نمکی، محلول آب نمک دریاچۀ ارومیه، مایعات یونی [HMIM] BF4 و [HMIM] Cl است.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Experimental Study of the Thermal-Hydraulic Performance of Several Ionic Liquids in a Counter-Current Double-Tube Micro Heat Exchanger

نویسندگان English

.Kh Darabi 1
.A Parvareh 2
1 MSc. Student of Chemical Engineering, Razi University,
2 Assistant Professor of Chemical Engineering, Razi University
چکیده English

In this study, the effect of different ionic liquids on heat transfer in a counter-current double tube micro heat exchanger has been investigated. Experiments were performed in double-tube heat exchanger with a shell diameter of 6 mm, and the tube inner and outer diameter of 0.91 and 2 mm, and the length of 50 cm. Heat transfer using two ionic liquids ([HMIM] BF4 and [HMIM] Cl), saline water, Urmia brine, and tap water as hot streams in the tube side and the tap water as the cold stream in the shell side was studied. Two inlet temperatures of 60 and 70 °C was considered for the hot stream and its volume flow rate varied from 0.5 to 3.3 mL/min. The evaluation of the overall heat transfer coefficient indicated that, at different flow rates, the highest coefficients were observed in the following order: saline water solution, [HMIM] BF4, [HMIM] Cl, Urmia brine, and tap water. Additionally,
the best thermal-hydraulic performance was achieved in the following order: saline water solution, Urmia brine, and the ionic liquids [HMIM] BF4 and [HMIM] Cl.

کلیدواژه‌ها English

Ionic Liquid
Heat Transfer
Micro Heat Exchanger
Thermal-Hydraulic Performance Coefficient
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