Sorption Study on Developed Low-cost Solid Desiccant Material for Solar Dryer


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Authors

  • Arun Kumar Attkan Assistant Professor, CCS Haryana Agricultural University, Hisar, Haryana, India
  • Nitesh Nitesh P.G. Student, Haryana Agricultural University, Hisar, Haryana, India
  • Y. K. Yadav Professor, CCS Haryana Agricultural University, Hisar, Haryana, India

Keywords:

Bentonite - CaCl2 des iccant, solar drying, regeneration, adsorption, desorption

Abstract

A study was attempted to develop a solar regenerative Bentonite - CaCl2 based
solid desiccant material, and examine it's moisture sorption performance and
regeneration characteristics. The desiccant was developed from 60 % bentonite,
20 % vermiculite, 10 % CaCl2 and 10 % cement. Regeneration studies on the
desiccant were carried out for moisture adsorption at 30 °C and 96 % R.H. for
144 h; and moisture desorption at 40 °C, 50 °C, 60 °C, 70 °C and 80 °C for 8 h.
Regeneration temperature and time significantly affected the moisture sorption and
desorption of the solid desiccant, and their combined impact was meaningful (p ≤
0.05). Maximum adsorption capacity of the desiccant was 35.12 % (d.b.), and was
efficiently regenerated by solar energy.

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Submitted

2019-01-23

Published

2019-01-23

Issue

Vol. 55 No. 3 (2018)

Section

Articles

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How to Cite

Attkan, A. K., Nitesh, N., & Yadav, Y. K. (2019). Sorption Study on Developed Low-cost Solid Desiccant Material for Solar Dryer. Journal of Agricultural Engineering, 55(3). https://epubs.icar.org.in/index.php/JAE/article/view/86409