An experimental investigation of the heat transfer and pressure drop characteristics of a circular tube fitted with rotating turbine-type swirl generators

บทความในวารสาร


ผู้เขียน/บรรณาธิการ


กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง


รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่งDuangthongsuk W., Wongwises S.

ผู้เผยแพร่Elsevier

ปีที่เผยแพร่ (ค.ศ.)2013

วารสารExperimental Thermal and Fluid Science (0894-1777)

Volume number45

หน้าแรก8

หน้าสุดท้าย15

จำนวนหน้า8

นอก0894-1777

eISSN1879-2286

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84871688669&doi=10.1016%2fj.expthermflusci.2012.09.009&partnerID=40&md5=571b90b3c63f413c15bbef5f27bc1261

ภาษาEnglish-Great Britain (EN-GB)


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บทคัดย่อ

Heat transfer enhancement and flow behaviors in horizontal circular tubes installed with five rotating turbine-type swirl generators (RTSG) are presented experimentally. This type of RTSG is an innovative design that has not been seen in the previous research. Deionized water is used as a working fluid and flows through the test section under turbulent flow conditions. A smooth, stainless steel tube 9.2 mm in ID, 0.4 mm in thickness, and 2.3 m in length is used as the test section. RTSG made from aluminum, with a twisted angle of 60ฐ and a length of 2 cm, are located at 0.46 m equally distant along the test section. When fluid flows through the RTSG, continuously free rotations are observed, and swirl flow after RTSG is created. A DC power supply is used to supply heat load to the test section. Compared with a common, plain tube (without rotating swirl devices), the experimental results indicate that the local heat transfer coefficient of the tube with RTSG inserts is higher than that of the common, plain tube, and they increase when the working fluid flows through the RTSG. Similarly, the wall temperatures of the tube with RTSG inserts are lower than those of the common tube. However, the pressure drop of the tube fitted with RTSG is significantly greater than that of the common, plain tube. ฉ 2012 Elsevier Inc.


คำสำคัญ

Passive techniqueSwirl generator


อัพเดทล่าสุด 2023-26-09 ถึง 07:36