ISSN:0008-4034    

DOI:10.1002/cjce.5450380301

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1960

数据来源: WILEY

摘要:

AbstractThe effect of natural convection on transition to a disturbed flow in a heat transfer section of a vertical pipe has been investigated. The transition is related to the distortions of the velocity profile caused by natural convection. When natural convection is in the direction of forced flow the transition appears to occur through the growth of small disturbances. Transition occurs suddenly when natural convection is opposite the direction of forced flow and it appears to be associated with a separation of the flow at the wall.

ISSN:0008-4034    

DOI:10.1002/cjce.5450380302

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1960

数据来源: WILEY

摘要:

AbstractExpression of critical velocity, based on thermodynamic consideration was obtained and is given by the following equation:or the ratio between the critical velocity and that of a corresponding ideal gas is given byNumerical values ofXandYwere computed and presented on the generalized plot basis. Together with the value of heat capacity, this method enables the rapid calculation of critical velocity of real gas when the deviation from ideal gas behavior is significant.

ISSN:0008-4034    

DOI:10.1002/cjce.5450380303

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1960

数据来源: WILEY

摘要:

AbstractPrevious work in the field of salt effect in vapor‐liquid equilibrium and the theory involved are reviewed briefly. Vapor‐liquid equilibrium data at atmospheric pressure are reported for the systems methanol‐water, ethanol‐water, and n‐propanol‐water, each saturated with a variety of common inorganic salts. A simple equation is proposed for the representation of salt effect. An attempt is made to ascertain the theoretical significance of this equation, and in so doing, to relate salt effect in vapor‐liquid equilibrium to the properties of the syst

ISSN:0008-4034    

DOI:10.1002/cjce.5450380304

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1960

数据来源: WILEY

ISSN:0008-4034    

DOI:10.1002/cjce.5450380305

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1960

数据来源: WILEY

ISSN:0008-4034    

DOI:10.1002/cjce.5450380306

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1960

数据来源: WILEY

摘要:

AbstractA suitable polymeric material offers several advantages over metals and alloys normally used for self‐sealing or friction‐fit trays in distillation and extraction columns, by reducing the capital cost and maintenance charges and by improving the efficiency of small diameter columns. The hydrophobic nature of polymeric materials also increases the plate efficiency of an extractor when the plate is wetted by a continuous organic phase which passes to a dispersed water phase.The plate efficiency and performance of a small column are often reduced by leakage or by passing of vapor and liquor at the periphery of the trays. This problem can be overcome by using self‐sealing polymeric trays arranged in cartridges which are assembled and inserted into the column shell as a unit. The flexible nature of polymers ensures a tight fit between the trays and the shell of the column, notwithstanding normal out‐of‐roundness of

ISSN:0008-4034    

DOI:10.1002/cjce.5450380307

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1960

数据来源: WILEY