ISSN:0009-286X    

DOI:10.1002/cite.330660502

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330660503

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

摘要:

AbstractNew Technologies – New Corrosion Problems. Adequate resistance of materials to corrosion is equally important for classical and for new technologies. This article considers the economic consequences of corrosion damage and, in addition to the longknown GNP orientation, presents a new approach to the estimation of the costs of corrosion and corrosion protection via maintenance and especially corrosionrelated maintenance. The significance of “high‐tech”, “medium‐tech” and “low‐tech” material and corrosion problems is assessed. Selected examples taken from new technologies in the areas of power engineering, environmental engineering, chemical engineering, and biotechnology demonstrate the great significance of the problems. It is concluded that corrosion research and corrosion prevention technology will never come to an end but will constantly face new problems. Two technologies are of particular interest since they focus attention on new methods of investigation: microelectronics and final disposal of radioactive wastes. The article closes by considering the importance of the transfer of experience and technology. Since the manufacturs and operators of machines and plant do not generally have access to the very latest knowledge, they should be kept informed through advisory services, experimental studies, databases, an

ISSN:0009-286X    

DOI:10.1002/cite.330660504

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

摘要:

AbstractSimulation of Transient Hydraulic Behaviour Process Engineering Plant with Long Pipes. A knowledge of transient flow processes is becoming increasingly important for the reliable design and control of process engineering plant. Transient flow processes occur, of example, in long liquid‐carrying pipes: on start‐up and shut‐down of plant, in emergency shut‐downs and fast closure, i.e. when liquid is rapidly decelerated or accelerated. The consequence of such an event is a hammer effect, i.e. a short, often violent change of pressure placing considerable stress on structures. Such hammer effects are readily calculated by numerical methods in single phase media. Technical devices for prevention of inadmissibly high pressures surges can also be designed by means of simulation calculations. However, hammer effects also occur by sudden condensation of vapours. A number of systems in which condensation hammer effects can occur are considered at the end of this contribution. Two special damping measures are pr

ISSN:0009-286X    

DOI:10.1002/cite.330660505

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

摘要:

AbstractDivision and Separation in the Recycling Process. The recycling process comprises a preparation and a reutilization step. This article describes preparation processes which are of importance for the recycling of used products and production wastes. The goal is to provide a clear presentation of the individual processes of division and separation and their mode of functioning with the aid of the systematic classification discussed in the paper. This is important for the overall process of recycling since combinations of various processes are usually employed. A systematic classification thus also provides a basis for new processes and combinations of processes.

ISSN:0009-286X    

DOI:10.1002/cite.330660506

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330660507

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330660508

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330660509

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330660510

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330660511

出版商:WILEY‐VCH Verlag    

年代:1994

数据来源: WILEY