Numerical investigation of heat transfer and pressure drop in shell tube heat exchanger with double segmental baffle
سال انتشار: 1402
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 81
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شناسه ملی سند علمی:
CONFITC09_006
تاریخ نمایه سازی: 14 مرداد 1403
چکیده مقاله:
In this study, a shell-and-tube type heat exchanger with double segmental baffles inside the shell is investigated by numerical simulation (CFD) methods. In the shell of the heat exchanger, the water fluid with a temperature of ۳۰۰ k and a specific mass flow rate is flowing, while the tubes are held steadily at ۴۵۰ K. Additionally, the baffles are located at fixed numbers, heights, and intervals. The results reveal that an increase in the mass flow rate of the water fluid within the shell leads to a direct improvement in heat transfer rates and pressure drops. In this research, for increasing the mass flow rate from ۰.۵ to ۱, ۱.۵ and ۲ kg/s, the heat transfer rate are increased by ۷۹.۷۵%, ۱۴۶.۰۳% and ۲۱۵.۸%, respectively, and the pressure drop are also increased by ۲۹۷.۴۷%, ۸۲۷.۷% and ۱۵۴۱.۸%.
کلیدواژه ها:
shell and tube heat exchanger ، pressure drop ، double segmental interrupted baffle ، heat transfer ، Computational fluid dynamics (CFD).
نویسندگان
Mehdi Hasanzatirostami
Department of Mechanical Engineering, Islamic Azad University, Science and Research Branch, Tehran, Iran
Iman Bazari
Department of Mechanical Engineering, Islamic Azad University, Sari Branch, Iran,
Davood Domiri Ganji
Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran
Mohammad Nimafar
Department of Mechanical Engineering, Islamic Azad University Central Tehran Branch, Tehran, Iran