Download or read book Heat Transfer in a Climbing Film Evaporator microform written by Jean Bourgois and published by National Library of Canada. This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Different flow patterns are encountered in the calandria of a climbing film evaporator when the feed is introduced cold. The lower part where the feed is brought to boiling temperature is filled with liquid. The remainder of the tube where evaporation occurs contains liquid and vapor phases. The local heat transfer coefficient and temperature profile were investigated separately for the liquid zone present in the lower part and for the boiling zone present in the upper part of a single tube glass evaporator. A study of the heat transfer in the liquid zone, where the process liquid is brought to its boiling temperature, showed that the presence of dissolved gases affects appreciably the efficiency when the operation is carried out under vacuum as compared to an operation at atmospheric pressure. In the boiling zone where two phase-flow is present (liquid and vapor phases), a heat transfer study permits the correlation of the pressure in the tube with the evaporating rate and the position along the evaporator tube. A model to determine the position where boiling begins, the temperature at any position in the tube, the vapor rate and the void fraction at the exit of the evaporator tube given the initial conditions (feed rate, feed temperature, vacuum in the system and thermal properties of the feed) was set up. Its validity was demonstrated by the results obtained with sugar solutions and tomato juice. The model was also successfully applied to an industrial scale example.

Download or read book Studies in Heat Transfer in the Climbing Film Evaporator written by N. I. Dunsmoir and published by . This book was released on 1958 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer in the Climbing Film Evaporator written by Keith James Cathro and published by . This book was released on 1956 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Boiling Film Heat Transfer Coefficients in a Pyrex Glass Climbing Film Evaporator written by Graeme John Kelly and published by . This book was released on 1964 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer Characteristics of a Climbing Film Evaporator for Use in a Solar assisted Absorption Air Conditioning written by Apostolos Economou and published by . This book was released on 1978 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer in Black Liquor Climbing film Evaporators written by Lars Olauson and published by . This book was released on 1980 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer in the Falling film Evaporator written by R. Staker and published by . This book was released on 1959 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer in Falling Film Evaporator and Condenser with Externally Fluted Surfaces written by Shyam Vasant Dighe and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer Analysis of a Falling Film Evaporator with Dropwise Condensation written by Bruce Broker and published by . This book was released on 1960 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer Aspects of a Wiped Wall Thin Film Evaporator written by Hassan Tchehrazi and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer in an LTV Falling Film Evaporator written by J. E. Kroll and published by . This book was released on 1967 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer in a Single Vertical Tube Falling Film Evaporator with Dropwise Condensation written by Bruce Broker and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer of a Wiped Wall Thin Film Evaporator written by H. Tchehrazi and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Variation of the Heat Transfer with Length Pressure Flow Rate and Temperature Difference in an LTV Falling Film Evaporator written by John Ernest Kroll and published by . This book was released on 1966 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer to Pure Liquids in a Falling Film Evaporator Concurrent Liquid and Vapor Flow written by Swei-yun Lung and published by . This book was released on 1969 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Heat Transfer in Horizontal Tube Falling Film Evaporators written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A model of combined boiling and evaporation of liquid films on horizontal tubes was developed. Specifically, this work was directed toward developing a heat transfer model applicable to the design of horizontal tube falling film evaportors for OTEC. The heat transfer process is modelled as combined boiling and evaporation of the liquid film. In modelling the behavior of single tubes special account is taken of heat transfer in the initial thermal developing region of the film. Predictions were found to agree favorably with the published experimental data for boiling and evaporation of thin water films on single horizontal tubes. The predicted upper and lower limits of heat transfer for ammonia on a vertical bank of plain horizontal tubes are 5.4 kW/m2-K and 3.1 kW/m2-K, respectively. The upper limit will be approached when the influence of between-tube evaporation and turbulence created by the liquid falling from one tube to the next are important. For an OTEC evaporator with plain tubes, the upper and lower limits of the overall U are 2.33 kW/m2-K and 1.82 kW/m2-K, respectively. With ammonia-side boiling enhancement, the overall U can be increased to about 3.8 kW/m2-K.

Download or read book Heat Transfer Analysis of a Falling film Horizontal Tube Evaporator written by Ing-Youn Chen and published by . This book was released on 1984 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: