Energy saving in ceramic tile kilns: Cooling gas heat recovery
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Other documents of the author: Mezquita, Ana; Boix, Juan; Monfort, Eliseo; Mallol Gasch, Gustavo
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comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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Title
Energy saving in ceramic tile kilns: Cooling gas heat recoveryDate
2014-04Publisher
ElsevierISSN
1359-4311Type
info:eu-repo/semantics/articlePublisher version
http://www.sciencedirect.com/science/article/pii/S1359431114000088#Version
info:eu-repo/semantics/submittedVersionSubject
Abstract
A great quantity of thermal energy is consumed in ceramic tile manufacture, mainly in the firing stage.
The most widely used facilities are roller kilns, fuelled by natural gas, in which more than 50% of the
energy ... [+]
A great quantity of thermal energy is consumed in ceramic tile manufacture, mainly in the firing stage.
The most widely used facilities are roller kilns, fuelled by natural gas, in which more than 50% of the
energy input is lost through the flue gas and cooling gas exhaust stacks.
This paper presents a calculation methodology, based on certain kiln operating parameters, for
quantifying the energy saving obtained in the kiln when part of the cooling gases are recovered in the
firing chamber and are not exhausted into the atmosphere. Energy savings up to 17 % have been
estimated in the studied case.
Comparison of the theoretical results with the experimental data confirmed the validity of the proposed
methodology. The study also evidenced the need to improve combustion process control, owing to the
importance of the combustion process in kiln safety and energy efficiency. [-]
Is part of
Applied Thermal Engineering Vol. 65, no. 1–2, 2014Rights
Copyright © 2015 Elsevier B.V.
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info:eu-repo/semantics/openAccess
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