Customer Login Shopping Cart
Library Subscription: Guest
Home Archives Thermal Letter Officers Future meetings Assembly for International Heat Transfer Conferences
International Heat Transfer Conference 4
1970, 31 August - 5 September, Paris-Versailles, France

AUGMENTATION OF SINGLE-PHASE HEAT TRANSFER IN TUBES BY USE OF HELICAL VANE INSERTS

Get access DOI: 10.1615/IHTC4.2150
pages 1-11

Abstract

The pressure drops and heat transfer coefficients of helical vane inserts of four different pitch-tube diameter ratios were measured over a Reynolds number range of about 30,000 to 300,000. The heat transfer coefficients and the pressure drops increased with increasing mass flow rate and decreasing insert pitch-tube diameter ratio. A momentum analysis, based on solid body rotation, resulted in new expressions for the momentum and frictional pressure drops for fully-developed flow in these inserts. Helical vane friction factors and Stanton numbers, computed from the experimental data in accordance with parameters derived from the analysis, correlated with conventional plain tube expressions.
Home Archives Thermal Letter Officers Future meetings Assembly for International Heat Transfer Conferences English Русский 中文 Português Spain French German Help Contact Us Back to Begell House