Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of Flow Characteristics of Forced Ventilated Pre-drying Facility for Mandarin

강제 통풍식 감귤 예건시설의 유동 해석

  • Received : 2010.10.05
  • Accepted : 2010.11.02
  • Published : 2010.12.25
Download PDF
⟨ Previous Next ⟩

Abstract

Uniform and rapid pre-drying of mandarin is important to improve the storage quality. The aim of this study was to suggest the basic design of forced ventilated pre-drying facility for mandarin by thermal flow analysis using computational fluid dynamics software (FLUENT 6.2). Developed CFD simulation model was verified by comparison with experimental data. Airflows and temperature distributions in the five conceptional designs including existing ordinary temperature storage rooms were analyzed and appropriate basic design was determined. Analysis of the effect of arrangement of windows and exhaust fans on thermal flow in facility was carried out for more detailed design. The results of this investigation showed that the predicted airflow velocity by CFD simulation showed a good agreement with the measured value and optimum design condition for simulated forced ventilated pre-drying facility of mandarin has two exhaust fans and two windows on both sidewalls and cover on loaded mandarin.

Keywords

References

  1. American Society of Heating, Refrigerating and Air-Conditioning Engineers Handbook. 1989. Atlanta, American society of heating, refrigerating and air-conditioning engineers Inc.
  2. Chourasia, M. K., P. Maji, A. Baskey and T. K. Goswami. 2005. Estimation of moisture loss from cooling data of potatoes. J. Food Process Eng. 28:397-416. https://doi.org/10.1111/j.1745-4530.2005.00031.x
  3. Chourasia, M. K. and T. K. Goswami. 2007. Simulation of effect of stack dimensions and stacking arrangement on cool down characteristics of potato in a cold store by computational fluid dynamics. Biosystems Engineering 96(4):503-515. https://doi.org/10.1016/j.biosystemseng.2006.12.010
  4. Ergun, S.. 1952. Fluid flow through packed columns. Chemical Engineering Progresses 48:89-94.
  5. FLUENT 6.2. 2005. User’s Guide, FLUENT Inc., New Hampshire, USA.
  6. Hoang, M. L., P. Verboven, J. De Baermaeker and B. M. Nicolai. 2000. Analysis of air flow in a cold store by means of computational fluid dynamics. Int. J. Ref. 23:127-140. https://doi.org/10.1016/S0140-7007(99)00043-2
  7. Kader, A. A.. 2002. Postharvest technology of horticultural crop. 3rd edition. University of California, Division of Agricultural and Natural Resource. USA
  8. Moureh, J., N. Menia and D. Flick. 2002. Numerical and experimental study of airflow in a typical refrigerated truck configuration loaded with pallets. Computer and Electronics in Agriculture 34:25-42. https://doi.org/10.1016/S0168-1699(01)00178-8
  9. Okushima, L., S. Sase and M. Nara. 1989. A Support system for natural ventilation design of greenhouses based on computational aerodynamics. Acta Horticulturae. 248:129-136.
  10. Van Gerwen. R. J. M. and H. Van Oort. 1990. Optimization of cold store using fluid dynamics models. Proceedings of IIF/IIR Commissions B2, C2, D1, D2/3. 4:473-480.
  11. Wang, H. and S. Touber. 1988. Distributed dynamics modelling of a refrigerated room. International Journal of Refrigeration 13:214-222. https://doi.org/10.1016/0140-7007(90)90033-S
  12. Yun, H. S., Y. K. Cho, P. K. Park and K. K. Park. 1995. Resistance to air flow through fruits and vegetables in bulk. J. of Biosystems Eng. 20(4):333-342. (In Korean)
  13. Yun, H. S., J. K. Kwon, H. Jeong, H. D. Lee, Y. K. Kim. 2008. Design of heat and fliud flow in cold container using CFD simulation. J. of Biosystems Eng. 33(6):396-403. (In Korean) https://doi.org/10.5307/JBE.2008.33.6.396

Cited by

  1. Analysis of Air Circulation in Oyster Mushroom Farm vol.37, pp.2, 2012, https://doi.org/10.5307/JBE.2012.37.2.075