• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology

Article

Indian Journal of Science and Technology

Year: 2020, Volume: 13, Issue: 43, Pages: 4446-4453

Original Article

Performance of paddy dryer with screw conveyor assisted parabolic cylinder collector as thermal generator

Received Date:31 October 2020, Accepted Date:16 November 2020, Published Date:09 December 2020

Abstract

Objectives: This study aims to develop better solar dryer for paddy drying. Methods and Analysis:The design and fabrication of a parabolic cylinder type collector-drying unit has been developed. Paddy is dried by the variation which took place into four batches starting from batch 1 (08:30 - 09:20), batch 2 (09:30- 10:10), batch 3 (10:20 - 11:10) and batch 4 (11:40 - 12:20) Western Indonesia Time (GMT +7), with a capacity of 5 kg of paddy/batch and solar radiation is in the range of 408.5 - 547.2 Watt/m2. The highest irradiation takes place in batch 2 with the maximum temperature inside the dryer reaching 74◦C. Findings: Overall the experiments achieved that paddy temperature are in the range of 43 – 45◦C, with the shortest drying time achieved in batches 2 and batch 4 i.e. 40 minutes. Thermal efficiency are in the range of 37.91% - 50.35%, SEC of 5.318 - 7.042 MJ/kg H2O evaporated and drying rate of 1.06 - 1.38 kg/hrs. Thus, this solar dryer is more effective than industrial inclined bed dryer or theindustrial horizontal rotary dryer. Novelty: The solar dryer using a parabolic cylinder type solar collector with a screw conveyor has been designed which can reduce drying time and moisture content better.

Keywords: Solar dryer; parabolic collector; paddy; efficiency

References

  1. Zheng X, Lan Y. Effects of Drying Temperature and Moisture Content on Rice Taste Quality. Agricultural Engineering International: the CIGR Ejournal. Manuscript FP07 023. 2007;9.
  2. Mehdizadeh Z, Zomorodian A. A Study of the Effect of Solar Drying System on Rice Quality. Journal Agricultural Science and Technology. 2009;11:527–534.
  3. Gazor HR, Alizadeh MR. Comparison of rotary dryer with conventional fixed bed dryer for paddy drying, milling quality and energy consumption. Agriculture Engineering International: CIGR Journal. 2020;22(2):264–271.
  4. Udomkun P, Romuli S, Schock S, Mahayothee B, Sartas M, Wossen T, et al. Review of solar dryers for agricultural products in Asia and Africa: An innovation landscape approach. Journal of Environmental Management. 2020;268. Available from: https://dx.doi.org/10.1016/j.jenvman.2020.110730
  5. Salvatierra-Rojas A, Nagle M, Gummert M, Bruin TD, Muller J. Development of an inflatable solar dryer for improved postharvest handling of paddy rice in humid climates. International Journal Agriculture & Biology Engineering. 2017;10(3):269–282. Available from: https://doi.org/10.3965/j.ijabe.20171003.2444
  6. Gazor HR, Alizadeh MR. Comparison of rotary dryer with conventional fixed bed dryer for paddy drying, milling quality and energy consumption. Agriculture Engineering International: CIGR Journal. 2020;22(2):264–271.
  7. I Y, YA R. Design, Construction and Testing of Parabolic Solar Oven. Journal of Applied Mechanical Engineering. 2016;5(4). Available from: https://dx.doi.org/10.4172/2168-9873.1000212
  8. Craig OO, Dobson RT, Niekerk Wv. A Novel Indirect Parabolic Solar Cooker. J. of Electrical Engineering. 2017;5(3):2168–9873. Available from: https://dx.doi.org/10.17265/2328-2223/2017.03.003
  9. Dina SF, Ilmi A, Masriani RS, Putra MS. Design of Parabolic Solar Cooker: As Alternative Cooker Trough Go Green In Medan. Indonesia, Indian Journal of Science and Technology. 2019;12(10). Available from: https://doi.org/10.17485/ijst/2019/v12i10/142206
  10. Iguaz A, Martin MBS, Arroqui C, Fernendez T, Mate JI, Virseda P. Thermophysical properties of medium grain rough rice ( LIDO cultivar ) at medium and low temperatures. European Food Research and Technology. 2003;217(3):224–229. Available from: https://dx.doi.org/10.1007/s00217-003-0760-x

Copyright

© 2020 Dina et al.This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)

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