Niu Meimei, Zhang Shaozhi, Hong Daliang, et al. Theoretical analysis of freeze-drying apparatus driven by low-grade heat source[J]. Journal of refrigeration, 2013, 34(4).
Niu Meimei, Zhang Shaozhi, Hong Daliang, et al. Theoretical analysis of freeze-drying apparatus driven by low-grade heat source[J]. Journal of refrigeration, 2013, 34(4). DOI: 10.3969/j.issn.0253-4339.2013.04.010.
Theoretical analysis is made for a freeze dryer driven by low-grade heat source. Its condenser utilizes LiCl solution which is continuously regenerated
and its refrigeration system adopts ammonia-water absorption type. Through thermodynamic analysis
it is demonstrated that 13573~20747kJ heat is needed for the removal of 1kg water from the material which eutectic temperature varies between -10 and -35℃
if the freeze dryer is used in summer in east China. The energy saving potential is thus significant.