Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters

Grate coolers are widely used in cement industries to recover heat from hot clinker, coming out from the rotary kiln. This study focuses on improving the energy, exergy and recovery efficiencies of a grate cooling system through the optimization of its operational parameters such as masses of coolin...

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Main Authors: Ahamed, Jamal Uddin, Madlool, N.A., Saidur, Rahman, Shahinuddin, M.I., Kamyar, A., Masjuki, Haji Hassan
Format: Article
Published: Elsevier 2012
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Online Access:http://eprints.um.edu.my/6596/
https://doi.org/10.1016/j.energy.2012.06.074
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author Ahamed, Jamal Uddin
Madlool, N.A.
Saidur, Rahman
Shahinuddin, M.I.
Kamyar, A.
Masjuki, Haji Hassan
author_facet Ahamed, Jamal Uddin
Madlool, N.A.
Saidur, Rahman
Shahinuddin, M.I.
Kamyar, A.
Masjuki, Haji Hassan
author_sort Ahamed, Jamal Uddin
building UM Library
collection Institutional Repository
content_provider Universiti Malaya
content_source UM Research Repository
continent Asia
country Malaysia
description Grate coolers are widely used in cement industries to recover heat from hot clinker, coming out from the rotary kiln. This study focuses on improving the energy, exergy and recovery efficiencies of a grate cooling system through the optimization of its operational parameters such as masses of cooling air and clinker, cooling air temperature, and grate speed. It has been found that the energy and recovery energy efficiencies of a cooling system can be increased by 1.1 and 1.9, respectively, with every 5 mass increases of cooling air. Similarly, it has been estimated that energy and recovery energy efficiencies can be increased by 2.0 and 0.4 with every 5 increase of cooling temperature. The exergy and its recovery efficiencies found to be increased by 3.6 and 2.2, respectively, for the same condition. Energy efficiency and energy recovery efficiencies are increased by 3.5 and 1.4 with every 9.1 increase of grate speed. Using heat recovery from the exhaust air, energy and exergy recovery efficiencies of the cooling system found to be increased by 21.5 and 9.4, respectively. It has been found that about 38.10 and 30.86 energy cost can be saved by changing mass flow rate of clinker and mass flow rate of cooling air, respectively.
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publisher Elsevier
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spelling my.um.eprints-65962018-10-18T02:11:23Z http://eprints.um.edu.my/6596/ Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters Ahamed, Jamal Uddin Madlool, N.A. Saidur, Rahman Shahinuddin, M.I. Kamyar, A. Masjuki, Haji Hassan TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery Grate coolers are widely used in cement industries to recover heat from hot clinker, coming out from the rotary kiln. This study focuses on improving the energy, exergy and recovery efficiencies of a grate cooling system through the optimization of its operational parameters such as masses of cooling air and clinker, cooling air temperature, and grate speed. It has been found that the energy and recovery energy efficiencies of a cooling system can be increased by 1.1 and 1.9, respectively, with every 5 mass increases of cooling air. Similarly, it has been estimated that energy and recovery energy efficiencies can be increased by 2.0 and 0.4 with every 5 increase of cooling temperature. The exergy and its recovery efficiencies found to be increased by 3.6 and 2.2, respectively, for the same condition. Energy efficiency and energy recovery efficiencies are increased by 3.5 and 1.4 with every 9.1 increase of grate speed. Using heat recovery from the exhaust air, energy and exergy recovery efficiencies of the cooling system found to be increased by 21.5 and 9.4, respectively. It has been found that about 38.10 and 30.86 energy cost can be saved by changing mass flow rate of clinker and mass flow rate of cooling air, respectively. Elsevier 2012 Article PeerReviewed Ahamed, Jamal Uddin and Madlool, N.A. and Saidur, Rahman and Shahinuddin, M.I. and Kamyar, A. and Masjuki, Haji Hassan (2012) Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters. Energy, 46 (1). pp. 664-674. ISSN 0360-5442, DOI https://doi.org/10.1016/j.energy.2012.06.074 <https://doi.org/10.1016/j.energy.2012.06.074>. https://doi.org/10.1016/j.energy.2012.06.074 doi:10.1016/j.energy.2012.06.074
spellingShingle TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
Ahamed, Jamal Uddin
Madlool, N.A.
Saidur, Rahman
Shahinuddin, M.I.
Kamyar, A.
Masjuki, Haji Hassan
Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters
title Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters
title_full Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters
title_fullStr Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters
title_full_unstemmed Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters
title_short Assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters
title_sort assessment of energy and exergy efficiencies of a grate clinker cooling system through the optimization of its operational parameters
topic TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
url http://eprints.um.edu.my/6596/
https://doi.org/10.1016/j.energy.2012.06.074
url_provider http://eprints.um.edu.my/