ISSN:0009-286X    

DOI:10.1002/cite.330710802

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

摘要:

AbstractIncreasing Productivity through Integrated Production Engineering and Processing ExpertiseThe future of production engineering is interdisciplinary. Between product innovation and product marketing there lies a design process which has to be optimised and which is interdisciplinary in character. The design process has to satisfy the demands of global markets on chemical products, which lead, for example, to shorter and shorter product life cycles, and to demands for low production costs, high and consistent product quality, and faster market launches.

ISSN:0009-286X    

DOI:10.1002/cite.330710803

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330710804

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

摘要:

AbstractPossible Approaches to the Prediction of Residence Time DistributionsAlthough the experimental determination of residence time distributions is based on a black‐box method, the signal shape also permits certain conclusions to be drawn about the internal conditions. However, if it is to provide a sole basis for elucidating process steps in a plant this method is soon overtaxed. A deeper theoretical penetration of the pertinent transport processes opens up the way ahead. However, since residence time distributions are based on mass‐oriented considerations, substantial advances in fluid mechanics, where location‐based considerations predominate, have not led to improved predictive capability. Yet the computer power now available offers a variety of ways of calculating residence‐time distributions for a known flow profile, thus permitting a step in the direction of better predictability of residence time distributions. This article presents utilisable methods and evaluates them with regard to their demands on time and effort and their predictive power. Problems arising in connection with the models are di

ISSN:0009-286X    

DOI:10.1002/cite.330710805

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

摘要:

AbstractBasic Research on Ultrasonic Production of Oil‐in‐Water‐EmulsionsThis article presents basic research results for production of oil in water emulsions under ultrasonic irradiation. A new theoretical model supports experimental work. Special attention is given to the transfer of batch experiments to continuous emulsification processes. Our experimental findings prove that final drop size essentially depends on specific power density. Drop size decreases with increasing residence time in the ultrasonic field until a system specific, minimum drop size is obtained. Ultrasonic irradiation leads to turbulent flow conditions on a macroscopic and a microscopic scale. Our model based on the theory of turbulent drop break up predicts drop size and can be used to design equipment for ultrasonic emulsific

ISSN:0009-286X    

DOI:10.1002/cite.330710806

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330710807

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330710808

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330710809

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330710810

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330710811

出版商:WILEY‐VCH Verlag    

年代:1999

数据来源: WILEY