Development of a compact freeze vacuum drying for jelly fish (Schypomedusae)

M. Idrus Alhamid, M. Yulianto, Nasruddin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new design of a freeze vacuum drying with internal cooling and heater from condenser's heat loss was built and tested. The dryer was used to dry jelly fish (schypomedusae), to study the effect of drying parameters such as the temperature within the drying chamber on mass losses (evaporation) during the freezing stage and the moisture ratio at the end of the drying process. The midili thin layer mathematical drying model was used to estimate and predict the moisture ratio curve based on different drying chamber temperatures. This experiment shows that decreasing the drying chamber temperature with constant pressure results in less mass loss during the freezing stage Drying time was reduced with an increase in drying temperature. Decreasing the drying chamber temperature results in lower pressure saturation of the material has no effect of drying chamber pressure on mass transfer.

Original languageEnglish
Title of host publication4th International Meeting of Advances in Thermofluids, IMAT 2011
Pages1246-1256
Number of pages11
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event4th International Meeting of Advances in Thermofluids, IMAT 2011 - Melaka, Malaysia
Duration: 2011 Oct 32011 Oct 4

Publication series

NameAIP Conference Proceedings
Volume1440
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Meeting of Advances in Thermofluids, IMAT 2011
CountryMalaysia
CityMelaka
Period11/10/311/10/4

Keywords

  • condenser's heat loss
  • Freeze vacuum drying
  • internal cooling
  • jellyfish (schypomedusae)
  • mass losses
  • moisture ratio
  • thin layer models

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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