摘要:

The interdependence of the main heat engineering parameters of dehydration and the quality indices of materials is analyzed. The classification of different microbiological materials as drying objects is proposed and based on their thermo-and xerolability. The critical residual moisture content is proved to be one of the main factors predetermining the choice of the dehydration method for living systems. Of special interest is the comparison of the experimental data for the effect of residual moisture content, the microorganism viability and for the behaviour of sorption isotherms, which would reveal a possible physical mechanism of the microorganism death when moisture is removed from biomass.

ISSN:0737-3937    

DOI:10.1080/07373938308959824

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

A sorption-sublimation mathematical model for a freeze dryer is presented, and is used to investigate the design and operation of a freeze dryer, in which a frozen liquid enclosed in a phial is dried.

ISSN:0737-3937    

DOI:10.1080/07373938308959825

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Removal of moisture in steam-fluidized, mainly steam-heated, fluidized beds makes possible significant energy savings over conventional forms of large-scale drying. The systems are described and their application to brown coal is reviewed. In this application the use of the system to permit meeting diurnal variation in power-station output, and the use of triple-effect drying to minimise coal usage and to avoid the necessity of recovering in the turbines the energy in the steam from the last dryer are discussed. Moisture-equilibrium of brown coal in superheated steam is reported. To facilitate the rapid adoption of the systems proposed, studies are being made of heat-transfer to dried coal, of moisture equilibrium in pressurized and vacuum systems, and of the use of carrier solids for drying lump materials.

ISSN:0737-3937    

DOI:10.1080/07373938308959826

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

This paper reviews the technology of wood drying and recent developments in the field. The importance of drying is reviewed first. Then the fundamentals of wood properties as they relate to drying are discussed, including how water is held in wood, how it moves through wood, and how drying stresses that lead to drying defects develop. Traditional drying technology for lumber, veneer, and heavy timbers is then presented. With this background, the discussion moves to recent developments in drying technology that have been implemented commercially, such as high-temperature drying, low-temperature drying, continuously rising temperature drying, vacuum drying, and advances in process control. Finally, a discussion is presented on drying technology of the future. This topic describes processes that offer potential improvements in drying technology, but are still in the research and development stage.

ISSN:0737-3937    

DOI:10.1080/07373938308959827

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

ISSN:0737-3937    

DOI:10.1080/07373938308959828

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

ISSN:0737-3937    

DOI:10.1080/07373938308959829

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

ISSN:0737-3937    

DOI:10.1080/07373938308959830

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

ISSN:0737-3937    

DOI:10.1080/07373938308959822

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor