Journal Title Materials Engineering - Materiálové in?inierstvo (MEMI) Journal Abbreviation Mateng Publisher Group The University of Žilina Website http://ojs.mateng.sk

PDF (1,137 kb)

Title	Experimental and numerical investigation of a simplified exhaust model
Authors	Vehovszky, Balázs
Abstract	A simplified experimental equipment was built to investigate heat radiation and free convection around hot exhaust pipe. Temperatures were measured on the surface of the pipe as like as on heat insulating and -reflecting aluminum shield. Special care was taken to the temperature measuring method: result proved that inappropriate fixing of measuring thermocouples lead to an error of up to 30 % in the temperature-increase values. A detailed 1D numerical model was set up and parametrized so as to the calculation results can be fitted to measured temperature values. In this way thermal properties of the surfaces – as emissivities, absorption coefficients and convective heat transfer coefficients – were determined for temperature sweeps and stationary state cases. The used methods are to be further improved for real automotive parts and higher temperatures.
Publisher
Date	2016-10-22
Source
Rights	http://creativecommons.org/licenses/by-nc-nd/3.0/

 

See other article in the same Issue