THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

online first only

Drying of mint leaves in forced convection solar dryer

ABSTRACT
In this present work, performance study on drying mint leaves under the metrological conditions. Intensity of radiation falls on the absorber plate which transfers heat to forced air flow inside the GI tube. Drying experiment carried out with 1kg of mint leaves taken for drying process under the different mass flow rate of 0.75 m/s and 1.25m/s in serpentine flow of air. Performance of the collector and drying efficiency were 30.33 % and 1.63% in first day at 0.75 m/s mass flow rate and in the second day collector, the drying efficiency were 29.41% and 1.89 % at the mass flow rate of 1.25m/s. The mass flow rate of air decreased with increasing collector and drying efficiency.
KEYWORDS
PAPER SUBMITTED: 2017-12-30
PAPER REVISED: 2018-07-04
PAPER ACCEPTED: 2018-10-18
PUBLISHED ONLINE: 2018-11-04
DOI REFERENCE: https://doi.org/10.2298/TSCI171230303S
REFERENCES
  1. Kavak Akpinar.E, Drying of mint leaves in a solar dryer and under open sun: Modelling, performance analyses. Energy Conversion and Management, Vol 51(2010), pp 2407-2418.
  2. El-Sebaii A.A and Shalaby S.M "Experimental investigation of an indirect-mode forced convection solar dryer for drying thymus and mint", Energy conversion and management, Vol 74(2013), pp.109-116.
  3. Ehsan mohseni-languri, Hessam Taherian, Reza Masoodi, and John R. Reisel "An energy and exergy study of a solar thermal air collector", Thermal science, Vol. 13 (2009),1, pp. 205-216.
  4. Kesavan Seshachalam, Arjunan Thottipalayam Velliangiri, And Vijayan Selvaraj, Drying of Carrot Slices in a Triple Pass Solar Dryer, Thermal Science, Vol. 21(2017), pp. S389-S398.
  5. Davide Del Col, Andrea Padovan, Matteo Bortolato, Marco Dai Prè, Enrico Zambolin, Thermal performance of flat plate solar collectors with sheet-and-tube and roll-bond absorbers, Energy, Vol 58(2013) pp 258-269.
  6. D.K. Rabha, P. Muthukumar, Performance studies on a forced convection solar dryer integrated with a paraffin wax-based latent heat storage system, Solar Energy, Vol 49 (2017) pp 214-226.
  7. Bhardwaj.A.K, Ranchan Chauhan, Raj Kumar, Muneesh Sethi, Adit Rana, Experimental investigation of an indirect solar dryer integrated with phase change material for drying valeriana jatamansi (medicinal herb), Case Studies in Thermal Engineering, Vol 10 (2017), pp 302-314.
  8. S. M. Shalaby, Effect of Using Energy Storage Material in an Indirect-mode Forced Convection Solar Dryer on the Drying Characteristics of Grapes, Journal of Medical and Bioengineering,vol (2012), pp 56-58.
  9. Y.I. Sallam, M.H. Aly, A.F. Nassar, E.A. Mohamed Solar drying of whole mint plant under natural and forced convection, Journal of Advanced Research vol (2013).
  10. John A Duffie and William A Beckman, Solar engineering of thermal processes, John Wiley & Sons, New Jersey,Canada,copywrite 2013.
  11. M. Mohanraj1, p. Chandrasekar, Performance of a Forced Convection Solar Drier Integrated with Gravel as Heat Storage Material, 2009, pg no 305 - 314.
  12. S.Vijayana, T.V.Arjunana, AnilKumarb, Mathematical modeling and performance analysis of thin layer drying of bitter gourd in sensible storage based indirect solar dryer, Innovative Food Science and Emerging Technologies, Vol 36 (2016), pp 59-67.
  13. C.D. Ho and T.C.Chen, Collector efficiency improvement of recycle double-pass sheet and tube solar water heater with internal fins attached, Renewable Energy, Vol 33(2008), pp 655-664.
  14. Abdel-Khalik S I, Heat removal factor for a flat-plate solar collector with a serpentine tube, Solar Energy, Vol. 18, pp. 59-64.
  15. Ehsan Baniasadi, saeed Ranjbar and Omid Boostanipour, Experimental investigation of the performance of mixed-mode dryer with thermal energu storage, Renewable Energy, Vol 33(2018)