Design and development of Phase Change Material (PCM) based hybrid solar dryer for herbs and spices
Herbs (green leafy plant mass) are highly perishable in nature containing more than 80% moisture. Moisture needs to be removed to less than 11% for storing it for longer period of time. A phase change material (PCM) based solar dryer was developed consisting of collector of area 0.64m2 and three tra...
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| Format: | Article |
| Language: | English |
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Indian Council of Agricultural Research
2020-12-01
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| Series: | The Indian Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/108599 |
| _version_ | 1811164810948116480 |
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| author | SILPA MANDAL P K SHARMA INDRA MANI H L KUSHWAHA ARUN KUMAR T V SUSHEEL SARKAR |
| author_facet | SILPA MANDAL P K SHARMA INDRA MANI H L KUSHWAHA ARUN KUMAR T V SUSHEEL SARKAR |
| author_sort | SILPA MANDAL |
| collection | DOAJ |
| description | Herbs (green leafy plant mass) are highly perishable in nature containing more than 80% moisture. Moisture needs to be removed to less than 11% for storing it for longer period of time. A phase change material (PCM) based solar dryer was developed consisting of collector of area 0.64m2 and three trays of 0.42 m2 of area each in the drying chamber. The dryer consists of a real time data acquisition system for recording the temperature, humidity and moisture loss. Collector was also filled with 20 kg paraffin wax as a latent heat storage material for continuous drying after sunshine. Performance of the developed dryer was evaluated by drying fresh mint and coriander leaves having initial moisture content of 82–86 % ( wb) and compared with developed dryer without PCM and shade drying considering both the drying parameters and quality parameters of the dried herbs. The developed dryer with PCM was found to produce significant difference in drying rate (P<0.0001) for both herbs compared to dryer without PCM and shade drying. All the quality parameters in terms of retention of the total phenolic content and flavonoid, magnesium and iron content found to have significance difference (P<0.0001) compared to without PCM and shade drying. The developed solar dryer provides a promising alternative for continual drying of other materials also including herbs even after sunshine hours with real time data acquisition system and also found to be superior in retaining quality. |
| first_indexed | 2024-04-10T15:27:16Z |
| format | Article |
| id | doaj.art-b359317c7b33471baf1eb2c210c46a53 |
| institution | Directory Open Access Journal |
| issn | 0019-5022 2394-3319 |
| language | English |
| last_indexed | 2024-04-10T15:27:16Z |
| publishDate | 2020-12-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | The Indian Journal of Agricultural Sciences |
| spelling | doaj.art-b359317c7b33471baf1eb2c210c46a532023-02-14T08:13:03ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192020-12-01901110.56093/ijas.v90i11.108599Design and development of Phase Change Material (PCM) based hybrid solar dryer for herbs and spicesSILPA MANDAL0P K SHARMA1INDRA MANI2H L KUSHWAHA3ARUN KUMAR T V4SUSHEEL SARKAR5Research Scholar, Division of Agricultural Engineering, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, IndiaPrincipal Scientist, Division of Agricultural Engineering, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, IndiaHead, Division of Agricultural Engineering, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, IndiaSenior Scientist, Division of Agricultural Engineering, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India Scientist, Division of Agricultural Engineering, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India Division of Agricultural Engineering, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, IndiaHerbs (green leafy plant mass) are highly perishable in nature containing more than 80% moisture. Moisture needs to be removed to less than 11% for storing it for longer period of time. A phase change material (PCM) based solar dryer was developed consisting of collector of area 0.64m2 and three trays of 0.42 m2 of area each in the drying chamber. The dryer consists of a real time data acquisition system for recording the temperature, humidity and moisture loss. Collector was also filled with 20 kg paraffin wax as a latent heat storage material for continuous drying after sunshine. Performance of the developed dryer was evaluated by drying fresh mint and coriander leaves having initial moisture content of 82–86 % ( wb) and compared with developed dryer without PCM and shade drying considering both the drying parameters and quality parameters of the dried herbs. The developed dryer with PCM was found to produce significant difference in drying rate (P<0.0001) for both herbs compared to dryer without PCM and shade drying. All the quality parameters in terms of retention of the total phenolic content and flavonoid, magnesium and iron content found to have significance difference (P<0.0001) compared to without PCM and shade drying. The developed solar dryer provides a promising alternative for continual drying of other materials also including herbs even after sunshine hours with real time data acquisition system and also found to be superior in retaining quality.https://epubs.icar.org.in/index.php/IJAgS/article/view/108599HerbsPhase change materialSolar dryerSpices |
| spellingShingle | SILPA MANDAL P K SHARMA INDRA MANI H L KUSHWAHA ARUN KUMAR T V SUSHEEL SARKAR Design and development of Phase Change Material (PCM) based hybrid solar dryer for herbs and spices The Indian Journal of Agricultural Sciences Herbs Phase change material Solar dryer Spices |
| title | Design and development of Phase Change Material (PCM) based hybrid solar dryer for herbs and spices |
| title_full | Design and development of Phase Change Material (PCM) based hybrid solar dryer for herbs and spices |
| title_fullStr | Design and development of Phase Change Material (PCM) based hybrid solar dryer for herbs and spices |
| title_full_unstemmed | Design and development of Phase Change Material (PCM) based hybrid solar dryer for herbs and spices |
| title_short | Design and development of Phase Change Material (PCM) based hybrid solar dryer for herbs and spices |
| title_sort | design and development of phase change material pcm based hybrid solar dryer for herbs and spices |
| topic | Herbs Phase change material Solar dryer Spices |
| url | https://epubs.icar.org.in/index.php/IJAgS/article/view/108599 |
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