Forced-convective turbulent-flows through horizontal ducts with isosceles-triangular internal cross-sections

C. W. Leung and S. D. Probert

Applied Energy, 1997, vol. 57, issue 1, 13-24

Abstract: Three electrically heated triangular ducts were used to simulate the thermal behaviours of turbulent air-flows through triangular passages in compact heat-exchangers (Fig. 1). Three sharp-cornered isosceles-triangular duralumin ducts were fabricated, each of the same length of 2.4 m and hydraulic diameter of 0.44 m, but with three different apex-angles, namely 40°, 60° and 90°. The experimental investigations were performed over a wide range of Reynolds number (Re), namely 5000

Date: 1997
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