The Use of Methanol Vapour for Effective Drying of Cellulose Insulation
The paper deals with a new method of drying cellulose insulation, which uses methanol vapour present in nitrogen as a drying medium. Compared to the insulation drying methods currently used in the industry, the method presented in the article has the following advantages: there is no cellulose depol...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/11/4465 |
| _version_ | 1797597528273715200 |
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| author | Piotr Przybylek Jaroslaw Gielniak |
| author_facet | Piotr Przybylek Jaroslaw Gielniak |
| author_sort | Piotr Przybylek |
| collection | DOAJ |
| description | The paper deals with a new method of drying cellulose insulation, which uses methanol vapour present in nitrogen as a drying medium. Compared to the insulation drying methods currently used in the industry, the method presented in the article has the following advantages: there is no cellulose depolymerization because there is no need to heat the insulation, there is no need to use large-size and energy-intensive dryers because the whole process takes place in the tank of the transformer. Important parameters of the drying process, such as methanol concentration in the nitrogen, flow rate, and process duration, were determined in four separate experiments. For the purposes of these experiments, a special system was constructed to control and measure the flow of drying medium. Controlling the flow rate of the carrier gas (nitrogen) made it possible to obtain different concentrations of methanol in nitrogen. Such values of concentration and flow rate were determined that allow drying of pressboard and paper in less than 144 h to a level lower than 1%. |
| first_indexed | 2024-03-11T03:07:20Z |
| format | Article |
| id | doaj.art-204b0788c89949e3ad8ff4a07f9d396c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T03:07:20Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-204b0788c89949e3ad8ff4a07f9d396c2023-11-18T07:49:11ZengMDPI AGEnergies1996-10732023-05-011611446510.3390/en16114465The Use of Methanol Vapour for Effective Drying of Cellulose InsulationPiotr Przybylek0Jaroslaw Gielniak1Institute of Electric Power Engineering, Faculty of Environmental Engineering and Energy, Poznan University of Technology, 60-965 Poznan, PolandInstitute of Electric Power Engineering, Faculty of Environmental Engineering and Energy, Poznan University of Technology, 60-965 Poznan, PolandThe paper deals with a new method of drying cellulose insulation, which uses methanol vapour present in nitrogen as a drying medium. Compared to the insulation drying methods currently used in the industry, the method presented in the article has the following advantages: there is no cellulose depolymerization because there is no need to heat the insulation, there is no need to use large-size and energy-intensive dryers because the whole process takes place in the tank of the transformer. Important parameters of the drying process, such as methanol concentration in the nitrogen, flow rate, and process duration, were determined in four separate experiments. For the purposes of these experiments, a special system was constructed to control and measure the flow of drying medium. Controlling the flow rate of the carrier gas (nitrogen) made it possible to obtain different concentrations of methanol in nitrogen. Such values of concentration and flow rate were determined that allow drying of pressboard and paper in less than 144 h to a level lower than 1%.https://www.mdpi.com/1996-1073/16/11/4465dryingmoisturemethanol vapourcellulose insulationpower transformer |
| spellingShingle | Piotr Przybylek Jaroslaw Gielniak The Use of Methanol Vapour for Effective Drying of Cellulose Insulation Energies drying moisture methanol vapour cellulose insulation power transformer |
| title | The Use of Methanol Vapour for Effective Drying of Cellulose Insulation |
| title_full | The Use of Methanol Vapour for Effective Drying of Cellulose Insulation |
| title_fullStr | The Use of Methanol Vapour for Effective Drying of Cellulose Insulation |
| title_full_unstemmed | The Use of Methanol Vapour for Effective Drying of Cellulose Insulation |
| title_short | The Use of Methanol Vapour for Effective Drying of Cellulose Insulation |
| title_sort | use of methanol vapour for effective drying of cellulose insulation |
| topic | drying moisture methanol vapour cellulose insulation power transformer |
| url | https://www.mdpi.com/1996-1073/16/11/4465 |
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