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Influence of relative humidity and temperature on human whole blood drying
- Source :
- Drying Technology, Drying Technology, 2022, 41 (3), pp.434-443. ⟨10.1080/07373937.2022.2095400⟩
- Publication Year :
- 2022
- Publisher :
- Informa UK Limited, 2022.
-
Abstract
- The drying of human whole blood pools has been studied experimentally to improve the understanding of drops and pools of human whole blood. Here blood is assimilated to a complex fluid made of several bio-colloids. The blood pools were created inside a glove box under controlled conditions. We performed experiments at temperatures of 21 °C, 29 °C, and 37 °C, and relative humidity ranging from 20 % to 70 %. The air inside the glove box was still, and the evaporation process was mainly purely diffusive. A human blood diffusion coefficient of (1.08 ± 0.02) × 10 −9 m 2 /s was obtained. This value is in agreement with literature values for polymers and colloidal films. Moreover, we elaborated an updated model using Page's model to describe the drying kinetics of human blood pools. The effect of the surface area of pools was considered using a diffusive characteristics time. These findings are of interest for biomedical and forensic applications.
- Subjects :
- Human blood
Fick's law
General Chemical Engineering
Drying kinetics
Pool and film
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]
[PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph]
Physical and Theoretical Chemistry
Diffusion coefficient
Subjects
Details
- ISSN :
- 15322300 and 07373937
- Volume :
- 41
- Database :
- OpenAIRE
- Journal :
- Drying Technology
- Accession number :
- edsair.doi.dedup.....771ef67aaa361500e770876b8df320c6