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Evaluation of an Indirect Solar Dryer with Integrated Heat Exchanger

Davidsson, Henrik LU ; Jamtsho, Tandin ; Om, Dechen and Andersson, Martin LU orcid (2025) EuroSun 2024
Abstract (Swedish)
Solar drying, utilizing solar energy to extract moisture from foodstuff, is a highly effective method for extending the shelf life of for instance fruits and vegetables. The utilization of solar dryers brings numerous benefits, e.g., it reduces reliance on fossil fuels and electricity and establishing an environmentally sustainable and relatively cheap option for food preservation. In this research we present key findings from measurements perform on a solar dryer with a built-in heat exchanger. Our solar dryer was constructed with the goal to keep it both as simple and as cheap as possible. The results show that the dryer outperforms open sun drying while simultaneously protecting the food stuff from the surrounding environment. Filling... (More)
Solar drying, utilizing solar energy to extract moisture from foodstuff, is a highly effective method for extending the shelf life of for instance fruits and vegetables. The utilization of solar dryers brings numerous benefits, e.g., it reduces reliance on fossil fuels and electricity and establishing an environmentally sustainable and relatively cheap option for food preservation. In this research we present key findings from measurements perform on a solar dryer with a built-in heat exchanger. Our solar dryer was constructed with the goal to keep it both as simple and as cheap as possible. The results show that the dryer outperforms open sun drying while simultaneously protecting the food stuff from the surrounding environment. Filling the dryers with more trays, and consequently more food, increases the difference in drying rate between the trays, which could be a concern for the end user as more attention needs to be paid to the drying process. This problem clearly indicates where future research must be carried out, i.e. in reducing this uneven drying. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
alternative title
Utvärdering av en indirekt soltork med inbyggd värmeväxlare
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
solar drying, measurements, indirect solar dryer
host publication
Proceedings of the EuroSun 2024 : ISES and IEA SHC International Conference on Solar Energy for Buildings and Industry in Limassol, Cyprus - ISES and IEA SHC International Conference on Solar Energy for Buildings and Industry in Limassol, Cyprus
pages
9 pages
publisher
International Solar Energy Society
conference name
EuroSun 2024
conference location
Limassol, Cyprus
conference dates
2024-08-26 - 2024-08-30
ISBN
978-3-9826306-0-1
DOI
10.18086/eurosun.2024.09.03
language
English
LU publication?
yes
id
93f5daca-8c09-4605-991e-63bd0a56a1e0
date added to LUP
2025-03-04 10:54:57
date last changed
2025-04-04 14:26:30
@inproceedings{93f5daca-8c09-4605-991e-63bd0a56a1e0,
  abstract     = {{Solar drying, utilizing solar energy to extract moisture from foodstuff, is a highly effective method for extending the shelf life of for instance fruits and vegetables. The utilization of solar dryers brings numerous benefits, e.g., it reduces reliance on fossil fuels and electricity and establishing an environmentally sustainable and relatively cheap option for food preservation. In this research we present key findings from measurements perform on a solar dryer with a built-in heat exchanger. Our solar dryer was constructed with the goal to keep it both as simple and as cheap as possible. The results show that the dryer outperforms open sun drying while simultaneously protecting the food stuff from the surrounding environment. Filling the dryers with more trays, and consequently more food, increases the difference in drying rate between the trays, which could be a concern for the end user as more attention needs to be paid to the drying process. This problem clearly indicates where future research must be carried out, i.e. in reducing this uneven drying.}},
  author       = {{Davidsson, Henrik and Jamtsho, Tandin and Om, Dechen and Andersson, Martin}},
  booktitle    = {{Proceedings of the EuroSun 2024 : ISES and IEA SHC International Conference on Solar Energy for Buildings and Industry in Limassol, Cyprus}},
  isbn         = {{978-3-9826306-0-1}},
  keywords     = {{solar drying; measurements; indirect solar dryer}},
  language     = {{eng}},
  month        = {{03}},
  publisher    = {{International Solar Energy Society}},
  title        = {{Evaluation of an Indirect Solar Dryer with Integrated Heat Exchanger}},
  url          = {{http://dx.doi.org/10.18086/eurosun.2024.09.03}},
  doi          = {{10.18086/eurosun.2024.09.03}},
  year         = {{2025}},
}