Heat Transfer in Disperse Systems of Various Structures and Configurations

Influence of internal heat sources on nonstationary heat transfer in disperse systems

Journal of Engineering Physics ◽

10.1007/bf00870089 ◽

1986 ◽

Vol 50 (2) ◽

pp. 202-207

Author(s):

A. Yu. Zubarev

Keyword(s):

Heat Transfer ◽

Internal Heat ◽

Nonstationary Heat ◽

Heat Sources ◽

Disperse Systems ◽

Nonstationary Heat Transfer ◽

Internal Heat Sources

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INFLUENCE OF MALTODEXTRIN AS A STRUCTURAL ADDITIVE ON THE PROCESS OF DRYING DROPS OF PHOSPHOLIPID SUSPENSIONS

Industrial Heat Engineering ◽

10.31472/ihe.4.2018.03 ◽

2018 ◽

Vol 40 (4) ◽

pp. 19-24

Author(s):

T.Y. Turchina ◽

E.K. Zhukotskiy ◽

L. Y. Avdeeva ◽

A.A. Makarenko

Keyword(s):

Heat Transfer ◽

Spray Drying ◽

Dry Matter ◽

Powder Form ◽

Disperse Systems ◽

Drying Time ◽

Adhesion Properties ◽

Engineering Parameters ◽

Single Droplets ◽

Gas Medium

Emulsions with phospholipid nanostructures are heterogeneous disperse systems, which, when dried, show thermoplastic and adhesion properties. Improvement of their structure-forming and conducting properties in spray drying requires the use of structuring additives. The purpose of the work was to investigate the effect of maltodextrin on the process of heat transfer by drying single droplets of emulsions with phospholipid nanostructures in order to determine the rationale heat-engineering parameters of powder form production. Emulsions with phospholipid nanostructures and maltodextrin in different proportions of solids from 10% to 40% were investigated on the system of "drop-vapor-gas medium" in the stream of heated heat-carrier. The processes of forming, structuring and deformation changes of droplets during drying, the manifestation of thermoplastic and adhesion properties of dried particles under the influence of high temperatures and cooling were studied. It was established that with the content of dry matter of 20-30% and the ratio of lecithin and maltodextrin-trine as 1: 1, it is achieved by reducing the drying time of droplets of emulsions with phospholipid nanostructure-ram by 25-30%, and the strengthening of the structure of dried particles is provided by cooling them. References9, figures 3.

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