Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis
Drying and firing of ceramic products are processes that require high energy consumption. Making these processes more efficient can improve product quality, reduce processing time and energy consumption, and promote economic and environmental gains. In this sense, this work aims to quantify heat tra...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/8/1568 |
| _version_ | 1811304585693757440 |
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| author | Ricardo S. Gomez Túlio R. N. Porto Hortência L. F. Magalhães Gicelia Moreira Anastácia M. M. C. N. André Ruth B. F. Melo Antonio G. B. Lima |
| author_facet | Ricardo S. Gomez Túlio R. N. Porto Hortência L. F. Magalhães Gicelia Moreira Anastácia M. M. C. N. André Ruth B. F. Melo Antonio G. B. Lima |
| author_sort | Ricardo S. Gomez |
| collection | DOAJ |
| description | Drying and firing of ceramic products are processes that require high energy consumption. Making these processes more efficient can improve product quality, reduce processing time and energy consumption, and promote economic and environmental gains. In this sense, this work aims to quantify heat transfer in an intermittent ceramic kiln during the heating and cooling stages, with and without thermal insulation. All mathematical formulation is based on the first law of thermodynamics. From the results, we conclude that the greatest heat loss occurs by radiation in the sidewalls of the equipment, and that a considerable amount of energy is required to heat the sidewalls, base, and ceiling of the kiln. Further, with the use of thermal insulation, it was concluded that a high reduction in the heat lost through the sidewalls was achieved, thus providing a global energy gain of approximately 35% and a reduction in the maximum external surface temperature from 249.34 to 79.47 °C when compared to the kiln without thermal insulation, reducing the risks of work accidents and thermal discomfort when in operation. |
| first_indexed | 2024-04-13T08:09:56Z |
| format | Article |
| id | doaj.art-25e4819a7463426e96619ea23a5391b5 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T08:09:56Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-25e4819a7463426e96619ea23a5391b52022-12-22T02:55:01ZengMDPI AGEnergies1996-10732019-04-01128156810.3390/en12081568en12081568Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal AnalysisRicardo S. Gomez0Túlio R. N. Porto1Hortência L. F. Magalhães2Gicelia Moreira3Anastácia M. M. C. N. André4Ruth B. F. Melo5Antonio G. B. Lima6Department of Mechanical Engineering, Federal University of Campina Grande, Campina Grande 58429-900, BrazilDepartment of Mechanical Engineering, Federal University of Campina Grande, Campina Grande 58429-900, BrazilDepartment of Chemical Engineering, Federal University of Campina Grande, Campina Grande 58429-900, BrazilDepartment of Chemical Engineering, Federal University of Campina Grande, Campina Grande 58429-900, BrazilDepartment of Mechanical Engineering, Federal University of Campina Grande, Campina Grande 58429-900, BrazilDepartment of Physics, State University of Paraiba, Campina Grande 58431-410, BrazilDepartment of Mechanical Engineering, Federal University of Campina Grande, Campina Grande 58429-900, BrazilDrying and firing of ceramic products are processes that require high energy consumption. Making these processes more efficient can improve product quality, reduce processing time and energy consumption, and promote economic and environmental gains. In this sense, this work aims to quantify heat transfer in an intermittent ceramic kiln during the heating and cooling stages, with and without thermal insulation. All mathematical formulation is based on the first law of thermodynamics. From the results, we conclude that the greatest heat loss occurs by radiation in the sidewalls of the equipment, and that a considerable amount of energy is required to heat the sidewalls, base, and ceiling of the kiln. Further, with the use of thermal insulation, it was concluded that a high reduction in the heat lost through the sidewalls was achieved, thus providing a global energy gain of approximately 35% and a reduction in the maximum external surface temperature from 249.34 to 79.47 °C when compared to the kiln without thermal insulation, reducing the risks of work accidents and thermal discomfort when in operation.https://www.mdpi.com/1996-1073/12/8/1568ceramic materialdryingfiringenergythermal efficiency |
| spellingShingle | Ricardo S. Gomez Túlio R. N. Porto Hortência L. F. Magalhães Gicelia Moreira Anastácia M. M. C. N. André Ruth B. F. Melo Antonio G. B. Lima Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis Energies ceramic material drying firing energy thermal efficiency |
| title | Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis |
| title_full | Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis |
| title_fullStr | Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis |
| title_full_unstemmed | Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis |
| title_short | Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis |
| title_sort | natural gas intermittent kiln for the ceramic industry a transient thermal analysis |
| topic | ceramic material drying firing energy thermal efficiency |
| url | https://www.mdpi.com/1996-1073/12/8/1568 |
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