Modeling of subcooled flow boiling with nanoparticles under the influence of a magnetic field

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Jamalabadi M.Y.A., Ghasemi M., Alamian R., Wongwises S., Afrand M., Shadloo M.S.

ผู้เผยแพร่: MDPI AG

ปีที่เผยแพร่ (ค.ศ.): 2019

Volume number: 11

Issue number: 10

นอก: 2073-8994

eISSN: 2073-8994

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85074300894&doi=10.3390%2fsym11101275&partnerID=40&md5=4811414787acada03d079bc9b39c91c3

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

Subcooled flow boiling is one of the major issues in the nuclear and power generation industries. If the fluid inlet temperature in the boiling area is less than the boiling temperature, the boiling process is called subcooled boiling. The symmetry of a physical system is a constant property of the system and is fixed by deformation. Using magnetohydrodynamic (MHD) forces and broken symmetry induced by nanosized particles, fluid and thermal systems can be more controlled. In this study, the effect of a magnetic field and nanoparticles on subcooled flow boiling in a vertical tube was investigated. For this purpose, a one-dimensional numerical code was used to simulate the flow and variations of various parameters that have been investigated and evaluated. The results showed that as the flow entered the heated area, the vapor volume fraction, Froude number, fluid cross-sectional area forces, mixture velocity, fluid velocity, bubble departure diameter, liquid and vapor Reynolds numbers, squared ratio of the Froude number to the Weber number, and fluid cross-sectional area forces coefficient increased. In the same region, the E๖tv๖s number, root mean square (RMS) of the fluid cross-sectional area force, sound velocity, liquid superficial velocity, critical tube diameter, bubble departure frequency, and density of the active nucleation site were reduced. It was also observed that after the heated area and under the influence of the magnetic field and the nanoparticles, the values of the vapor volume fraction, Froude number, fluid cross-sectional area force, mixture velocity, fluid velocity, vapor, liquid Reynolds number, and squared ratio of the Froude number to theWeber number were decreased. Moreover, there was no significant effect on the E๖tv๖s number, liquid superficial velocity, Taylor bubble Sauter mean diameter, bubble departure diameter, critical tube diameter, bubble departure frequency, or density of the active nucleation site. ฉ 2019 by the authors.

คำสำคัญ

Subcooled flow boiling, Vapor volume fraction