𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The effect of acoustic vibration on forced convective heat transfer

✍ Scribed by Robert Lemlich; Chung-Kong Hwu

Publisher
American Institute of Chemical Engineers
Year
1961
Tongue
English
Weight
568 KB
Volume
7
Category
Article
ISSN
0001-1541

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

In an effort to study the effect of acoustic vibration on forced convective heat transfer, sound at resonant frequencies of 198, 256, and 322 c./sec., as well as sound at nonresonant frequencies, was imposed on air flowing at Reynolds numbers of 560 to 5,900 in the core of a horizontal, double pipe, steam to air, heat exchanger. Increases in Nusselt number of up to 51% in the nominally laminar region and up to 27% in the nominally turbulent region were obtained. The improvement peaked sharply at resonance and increased with both amplitude and resonant frequency. A qualitative dual mechanism is suggested, and correlations for the experimental results are presented.

πŸ“œ SIMILAR VOLUMES

Effects of an unsteady thermal boundary
Effects of an unsteady thermal boundary condition on forced convection heat transfer
✍ Kazunari Momose; Hideo Kimoto πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 356 KB πŸ‘ 1 views

## Abstract A numerical analysis based on adjoint formulation of unsteady forced convection heat transfer is proposed to generally evaluate effects of the thermal boundary condition on the heat transfer characteristics. A numerical solution of the adjoint problem enables us to predict the heat tran

Effect of suspended particles on convect
Effect of suspended particles on convective heat transfer enhancement
✍ M. AydΔ±n; A. Heitor Reis; AntΓ³nio F. Miguel πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 118 KB

In this paper we numerically study the influence of particles suspended in flows on heat transfer enhancement. We consider two flat horizontal parallel plates kept at the same temperature, where hot air with particles flows in between. High-conductive and low-conductive particles are assumed to acco

Evaluating the performance of forced con
Evaluating the performance of forced convection heat transfer enhancement
✍ Ichimiya, Koichi ;Morimoto, Shunichi ;Miyazawa, Toshiyoshi πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 207 KB πŸ‘ 2 views

Two methods for assessing thermal performance were evaluated for four kinds of forced convective heat transfer augmentations. On method uses the first law of thermodynamics, i.e., the heat transfer improvement at (1) constant Reynolds number, (2) constant pressure loss, and (3) constant pumping powe