I306 EFFECT OF FIN DIRECTION ON CONDENSATION HEAT TRANSFER AND FLOW PATTERN IN A HERRINGBONE MICRO FIN TUBE(Heat transfer in complex system-3)

スポンサーリンク

概要

• 論文の詳細を見る

• Heat transfer coefficient and pressure drop of in-tube condensation of R410A were measured with a herringbone type micro fin tube, a helical micro fin tube, and a smooth tube. Flow state of the herringbone micro fin tube was observed by using R123 as a working fluid. The heat transfer coefficient of the herringbone micro fin tube is higher than that of the helical micro fin tube under high mass velocity conditions. In the case of low mass velocity, however, the heat transfer enhancement rate is slightly lower than that of the helical micro fin tube. The enhancement rate is affected by the fin direction in the intermediate mass velocity range, while it is negligible in the low and high mass velocity regions. The fin direction has also effects on the pressure drop. The heat transfer enhancement mechanism and the effect of fin direction are discussed with the flow state observation.

• 2000-10-01

著者

• Takei Koji

  Graduate School Of Science And Engineering Saga University

• MIYARA Akio

  Dept. of Mechanical Engineering, Saga Universit

• OTSUBO Yusuke

  Graduate School of Science and Engineering, Saga University

• TANIGUCHI Mitsunori

  Refrig. Research Lab., Matsushita Refrig. Co.

• Taniguchi Mitsunori

  Refrig. Research Lab. Matsushita Refrig. Co.

• Miyara Akio

  Dept. Of Mechanical Engineering Saga Universit

• Otsubo Yusuke

  Graduate School Of Science And Engineering Saga University

関連論文

• I306 EFFECT OF FIN DIRECTION ON CONDENSATION HEAT TRANSFER AND FLOW PATTERN IN A HERRINGBONE MICRO FIN TUBE(Heat transfer in complex system-3)

スポンサーリンク