ISSN:
1750-3841
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
,
Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
Notizen:
— The cooling effectiveness during pneumatic transport of a spray-dried food product has been investigated. Differential equations which describe the product and air temperatures as a function of distance from the initial mixing point have been derived and solved. The predicted results have been compared to experimental data obtained in a conveying tube equipped with thermocouples. The results indicated the equilibrium temperature of the air-product mixture could be predicted and was a function of loading ratio. Increased loading ratio decreased the distance required to reach the equilibrium temperature. The effectiveness of product cooling after reaching the equilibrium temperature was a function of conditions at the conveying tube wall. Results indicated that a water spray over the exterior surface was more effective than forced-air circulation which, in turn, was more effective than natural air circulation.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1365-2621.1971.tb04049.x
Permalink