Affiliation:
1. Dipartimento di Ingegneria Meccanica, Energetica, Gestionale e dei Trasporti (DIME), Università degli Studi di Genova, Via Montallegro 1, 16145 Genoa, Italy
Abstract
A glass production furnace requires a considerable amount of energy to allow the correct glass melting process. In this work, a CFD model has been developed in order to simulate the convective flow movements within the molten glass bath of the glass furnace. A heat flux profile has been assigned to the glass free surface to model the combustion process, and the glass has been modelled with thermophysical properties variable with temperature based on its chemical composition. The model has been validated by comparing the flow structure and temperature with a reference work. Subsequently, a flow analysis has been carried out by using different shapes for the heat flux profile and by varying its main parameters. The above heat release profiles are representative of different settings of the combustion operating points and can be useful to understand the effects of different flames (i.e., from different fuels also) on the glass flow structure. It has been demonstrated that only the thermal distribution with a maximum generates two convective macro-cells: the first is necessary for the glass melting, the second for its homogenization. It has also been observed that the length of these vortices is related to the flame length. However, a portion of the flow exits directly from the throat (furnace exit port) without entering into the second cell; a low-quality product will be generated in this case.
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference40 articles.
1. Energy consumption and CO2 emissions of the European glass industry;Schmitz;Energy Policy,2011
2. Modelling operation of system of recuperative heat exchangers for aero engine with combined use of porosity model and thermos-mechanical model;Koshelnik;Glass Ceram.,2008
3. CFD Analysis of Regenerative Chambers for Energy Efficiency Improvement in Glass Production Plants;Basso;Energies,2015
4. Waste heat recovery from metal casting and scrap preheating using recovered heat;Selvaray;Procedia Eng.,2014
5. (2023, May 14). LIFE Project “LIFE 12ENV/IT/001020”. Available online: http://ec.europa.eu/environment/life/project/Projects.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献