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RESEARCH PAPERS

Application of Noncircular Primary-Air Inlet Geometries in the Inshot Burners of Residential Gas Furnaces

[+] Author and Article Information
P. Kolluri, A. Kamal, S. R. Gollahalli

School of Aerospace and Mechanical Engineering, The University of Oklahoma, Norman, OK 73019

J. Energy Resour. Technol 118(1), 58-64 (Mar 01, 1996) (7 pages) doi:10.1115/1.2792694 History: Received July 24, 1993; Revised October 19, 1995; Online December 05, 2007

Abstract

Experiments with an inshot burner used in residential natural gas furnaces are presented. The concentrations of NOx , NO, and CO in the combustion products of partially aerated natural gas flames were measured in a laboratory combustion chamber. When the conventional circular venturi inlet of the inshot burner was replaced by elliptic venturi inlets, an increase of up to 30 percent in the primary-air entrainment and a decrease of up to 20 percent in the NOx emission index were observed. Temperature field measurements in the flames were in conformity with the emission index measurements.

Copyright © 1996 by The American Society of Mechanical Engineers
Topics: Furnaces
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