A Numerical Simulation of the Thermal Process in Controlled Atmosphere Brazing (CAB) of an Aluminum Heat Exchanger University of Michigan - Dearborn

Format:

Conference/Event

Author/Creator:

Ratts, Eric B., author.

Conference Name:

International Congress & Exposition (1998-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

This paper describes a heat transfer model currently being developed for a next generation controlled atmosphere brazing furnace for production of automotive aluminum heat exchangers. This furnace will be numerically controlled to improve product yield. Part of the control loop decision will be based on predicted heat exchanger temperatures for set operating conditions. The numerical program is a transient heat transfer model simulating the radiant heat transfer between the furnace and the heat exchanger and the conduction heat transfer within the heat exchanger.The program solves the three-dimensional conduction equation for a solid using an implicit finite difference method. The boundary conditions to the solid is the radiant heat exchange. The program determines the radiant heat exchange based on the assumption of gray diffuse surfaces. Using an existing viewfactor program that uses contour integration, viewfactors are used to determine modified configuration factors to ultimately determine the boundary heat fluxes

Notes:

Vendor supplied data

Publisher Number:

980053

Access Restriction:

Restricted for use by site license