Structure Improvement and Flow Field Analysis of Condenser in Freeze - drying Equipment

DOI

10.2991/mcei-16.2016.251How to use a DOI?

Keywords

Condenser; Freeze - dry; Finite element; Flow field

Abstract

The condenser of freeze-dryer is used to capture the water vapor from the drying chamber. A common problem of the condenser is that the frost is non-uniform and prone to "ice plugs". This paper studies the condenser of large food freeze-drying equipment, the structure of the condenser shell is changed from cylindrical to cone-cylinder, and the arrangement of condensing pipes in the condenser is changed to the non-uniform, condensing pipes is relatively sparse near the inlet, and it is relatively dense close to the outlet. The flow field in the condenser was analyzed by the finite element analysis method. The simulated result indicated that the vapor in the cone-cylinder shell is easy to form vortex, the streamline is uniform and long, and prolong the residence time of water vapor in the condenser, which is conducive to the uniform frosting and increase water vapor condensation rate.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Runling Peng
AU  - Shasha Yin
AU  - Hao Zhang
AU  - Wei Cao
AU  - Ning Wang
PY  - 2016/12
DA  - 2016/12
TI  - Structure Improvement and Flow Field Analysis of Condenser in Freeze - drying Equipment
BT  - Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)
PB  - Atlantis Press
SP  - 1220
EP  - 1224
SN  - 1951-6851
UR  - https://doi.org/10.2991/mcei-16.2016.251
DO  - 10.2991/mcei-16.2016.251
ID  - Peng2016/12
ER  -