THERMAL SCIENCE

International Scientific Journal

Ioannis Dolianitis

,

Nikolaos Giannoulas

,

Nikolaos Christodoulou

,

Georgios Skarpetis

,

Evelina Nikolova

,

Emmanouil Kakaras

,

Sotirios Karellas

,

Christina-Stavrula Hatzilau

,

Dionysios Giannakopoulos

,

Theodoros Zitounis

WASTE HEAT RECOVERY AT THE GLASS INDUSTRY WITH THE INTERVENTION OF BATCH AND CULLET PREHEATING

ABSTRACT
A promising option to reduce the specific energy consumption and CO2 emissions at a conventional natural gas fired container glass furnace deals with the advanced utilization of the exhaust gases downstream the air regenerators by means of batch and cullet preheating. A 3-dimensional computational model that simulates this process using mass and heat transfer equations inside a preheater has been developed. A case study for an efficient small-sized container glass furnace is presented dealing with the investigation of the impact of different operating and design configurations on specific energy consumption, CO2 emissions, flue gas energy recovery, batch temperature and preheater efficiency. In specific, the effect of various parameters is studied, including the preheater’s dimensions, flue gas temperature, batch moisture content, glass pull, combustion air excess and cullet fraction. Expected energy savings margin is estimated to 12-15%.
KEYWORDS
energy efficiency, waste heat recovery, batch preheating, modeling, glass industry, CO2 emissions
PAPER SUBMITTED: 2015-11-27
PAPER REVISED: 2016-02-06
PAPER ACCEPTED: 2016-02-12
PUBLISHED ONLINE: 2016-04-09
DOI REFERENCE: https://doi.org/10.2298/TSCI151127079D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Issue 4, PAGES [1245 - 1258]
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Waste heat recovery at the glass industry with the intervention of batch and cullet preheating

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence