Suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green building
This paper investigates the adsorption capacity of the organic cow dung desiccant and its composites for application as a desiccant for desiccant dehumidification systems. The composite desiccants of cow dung with calcium chloride (CDC) and with silica gel (CDS) were prepared as a solution with Hydr...
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| Language: | English |
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Elsevier
2025-06-01
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| Series: | Solar Compass |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772940025000165 |
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| author | Harish Kumar U Lakshmi Kanthan Bharathi A Saravanan R Kalaiselvam S |
| author_facet | Harish Kumar U Lakshmi Kanthan Bharathi A Saravanan R Kalaiselvam S |
| author_sort | Harish Kumar U |
| collection | DOAJ |
| description | This paper investigates the adsorption capacity of the organic cow dung desiccant and its composites for application as a desiccant for desiccant dehumidification systems. The composite desiccants of cow dung with calcium chloride (CDC) and with silica gel (CDS) were prepared as a solution with Hydroxyethylcellulose and coated on a Wood Pulp Fiber Paper (WPFP) substrate and their adsorption ability was studied for different temperatures (25, 35 and 45 °C) and RH (75, 85 and 95 %). The desiccant bed of size 30 × 30 cm with desiccant CD, CDS, and CDC coated on the Wood Pulp fiber paper was prepared and subjected to dehumidification and regeneration. The dehumidification capacity (DC) and dehumidification coefficient of performance (DCOP) of the CD, CDC, and CDS composite desiccant beds were analyzed. The composite CDC performed better than others with a moisture uptake capacity of 0.643 g/g by reaching saturation in 80 min. CD, CDC, and CDS desiccants show faster regeneration within 30 min at the regeneration temperature of 80 °C. The CDC-coated Wood Pulp Fiber Paper performed better and the DCOP was maximum with a value of 2.52 at 50 °C regeneration temperature considering 50, 60, 70, and 80 °C. |
| format | Article |
| id | doaj-art-23743cac855a411586debe5f641cc08d |
| institution | DOAJ |
| issn | 2772-9400 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Solar Compass |
| spelling | doaj-art-23743cac855a411586debe5f641cc08d2025-08-20T03:12:19ZengElsevierSolar Compass2772-94002025-06-011410012110.1016/j.solcom.2025.100121Suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green buildingHarish Kumar U0Lakshmi Kanthan Bharathi A1Saravanan R2Kalaiselvam S3Department of Mechanical Engineering, College of Engineering Guindy, Anna University, Chennai, Tamil Nadu, 600025, India; Centre for Industrial Safety, Anna University, Chennai, Tamil Nadu, 600025, IndiaDepartment of Mechanical Engineering, College of Engineering Guindy, Anna University, Chennai, Tamil Nadu, 600025, India; Centre for Industrial Safety, Anna University, Chennai, Tamil Nadu, 600025, IndiaDepartment of Mechanical Engineering, College of Engineering Guindy, Anna University, Chennai, Tamil Nadu, 600025, IndiaDepartment of Mechanical Engineering, College of Engineering Guindy, Anna University, Chennai, Tamil Nadu, 600025, India; Centre for Industrial Safety, Anna University, Chennai, Tamil Nadu, 600025, India; Corresponding author.This paper investigates the adsorption capacity of the organic cow dung desiccant and its composites for application as a desiccant for desiccant dehumidification systems. The composite desiccants of cow dung with calcium chloride (CDC) and with silica gel (CDS) were prepared as a solution with Hydroxyethylcellulose and coated on a Wood Pulp Fiber Paper (WPFP) substrate and their adsorption ability was studied for different temperatures (25, 35 and 45 °C) and RH (75, 85 and 95 %). The desiccant bed of size 30 × 30 cm with desiccant CD, CDS, and CDC coated on the Wood Pulp fiber paper was prepared and subjected to dehumidification and regeneration. The dehumidification capacity (DC) and dehumidification coefficient of performance (DCOP) of the CD, CDC, and CDS composite desiccant beds were analyzed. The composite CDC performed better than others with a moisture uptake capacity of 0.643 g/g by reaching saturation in 80 min. CD, CDC, and CDS desiccants show faster regeneration within 30 min at the regeneration temperature of 80 °C. The CDC-coated Wood Pulp Fiber Paper performed better and the DCOP was maximum with a value of 2.52 at 50 °C regeneration temperature considering 50, 60, 70, and 80 °C.http://www.sciencedirect.com/science/article/pii/S2772940025000165DehumidificationDesiccantAdsorption capacityFiber papersCow dungEvaporative cooling |
| spellingShingle | Harish Kumar U Lakshmi Kanthan Bharathi A Saravanan R Kalaiselvam S Suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green building Solar Compass Dehumidification Desiccant Adsorption capacity Fiber papers Cow dung Evaporative cooling |
| title | Suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green building |
| title_full | Suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green building |
| title_fullStr | Suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green building |
| title_full_unstemmed | Suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green building |
| title_short | Suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green building |
| title_sort | suitability of natural composite desiccant assisted evaporative cooling for sustainable net zero energy green building |
| topic | Dehumidification Desiccant Adsorption capacity Fiber papers Cow dung Evaporative cooling |
| url | http://www.sciencedirect.com/science/article/pii/S2772940025000165 |
| work_keys_str_mv | AT harishkumaru suitabilityofnaturalcompositedesiccantassistedevaporativecoolingforsustainablenetzeroenergygreenbuilding AT lakshmikanthanbharathia suitabilityofnaturalcompositedesiccantassistedevaporativecoolingforsustainablenetzeroenergygreenbuilding AT saravananr suitabilityofnaturalcompositedesiccantassistedevaporativecoolingforsustainablenetzeroenergygreenbuilding AT kalaiselvams suitabilityofnaturalcompositedesiccantassistedevaporativecoolingforsustainablenetzeroenergygreenbuilding |