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Technical Note
Online Published: 30 Jun 2017
 


Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages

E. Elbenghazi, K. Agha, E. Dekam.


Abstract
This paper presents a model of indirect solar dryer augmented with pebble bed thermal storage. The thermal storage system was considered to be placed inside the drying chamber above the 47°-tilted air solar collector and below the crop bed, where an average September-daily insolation profile was given for the 32°N location. A presented mathematical model took into consideration the pressure and natural buoyancy forces, employed the basic governing equations, atmospheric-air psychometric-chart relations, and published correlation relationships. A “QBASIC” computer program was written based on the trial and error method for the calculation of different parameters. Dimensions of the dryer system, position, and characteristics of the crop and storage beds, strongly affected the behavior of the dryer system, for both rice and tomato products. Referring to the considered indirect solar dryer design type, on average two and five days were required for rice and tomatoes long-term drying, respectively. This seems to be visible in rice products, however, it is far from applicability for tomatoes mass-drying process in agricultural fields, due to its high initial moisture content.

Key words: Air collector applications, Indirect solar dryers, Rice and tomatoes preservation, Natural hot air flow, Natural buoyancy forces


 
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How to Cite this Article
Pubmed Style

Elbenghazi E, Agha K, Dekam E. Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages. Sol. Energy Sustain. Dev.. 2017; 6(1): 1-12.

Web Style

Elbenghazi E, Agha K, Dekam E. Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages. https://www.jsesd.org/?mno=302658221 [Access: November 12, 2026].

AMA (American Medical Association) Style

Elbenghazi E, Agha K, Dekam E. Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages. Sol. Energy Sustain. Dev.. 2017; 6(1): 1-12.


Vancouver/ICMJE Style

Elbenghazi E, Agha K, Dekam E. Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages. Sol. Energy Sustain. Dev.. (2017), [cited November 12, 2026]; 6(1): 1-12.


Harvard Style

Elbenghazi, E., Agha, . K. & Dekam, . E. (2017) Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages. Sol. Energy Sustain. Dev., 6 (1), 1-12.


Turabian Style

Elbenghazi, E., K. Agha, and E. Dekam. 2017. Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages. Solar Energy and Sustainable Development, 6 (1), 1-12.


Chicago Style

Elbenghazi, E., K. Agha, and E. Dekam. "Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages." Solar Energy and Sustainable Development 6 (2017), 1-12.


MLA (The Modern Language Association) Style

Elbenghazi, E., K. Agha, and E. Dekam. "Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages." Solar Energy and Sustainable Development 6.1 (2017), 1-12. Print.


APA (American Psychological Association) Style

Elbenghazi, E., Agha, . K. & Dekam, . E. (2017) Simulation Of Indirect Solar Crop Dryers Augmented With Pebble-Bed Thrmal Storages. Solar Energy and Sustainable Development, 6 (1), 1-12.



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