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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Construction and testing of a hydrogen liquefier

Newell, Oswald 08 1900 (has links)
No description available.
2

Measurement of total emissivity of surfaces at low temperatures

Cheung, Harry 08 1900 (has links)
No description available.
3

Gas liquefaction using a Ranque-Hilsch vortex tube : design criteria and bibliography

Hellyar, Kenneth G January 1980 (has links)
Thesis (Chem.E)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1980. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE. / Includes bibliographies. / by Kenneth George Hellyar. / Chem.E
4

An economic evaluation of the recovery of krypton and xenon from nuclear fuels reprocessing plants

Boyum, Bruce Montgomery, 1947- January 1971 (has links)
No description available.
5

The erection of a liquid oxygen producing plant and the redesign of this plant to produce liquid nitrogen

Phillips, Weller Abner 08 1900 (has links)
No description available.
6

Cellulose liquefaction under mild conditions

Sabade, Sanjiv B. (Sanjiv Balwant) January 1983 (has links)
No description available.
7

Cellulose liquefaction under mild conditions

Sabade, Sanjiv B. (Sanjiv Balwant) January 1983 (has links)
No description available.
8

Experimental Studies Of Liquefaction And Densification Of Liquid Oxygen

Partridge, Jonathan Koert 01 January 2010 (has links)
Rocketry employs cryogenic refrigeration to increase the density of propellants, such as oxygen, and stores the propellant as a liquid. In addition to propellant liquefaction, cryogenic refrigeration can also conserve propellant and provide propellant subcooling and densification. Previous studies analyzed vapor conditioning of a cryogenic propellant, which occurred by either a heat exchanger positioned in the vapor or by using the vapor as the working fluid in a refrigeration cycle. This study analyzes the refrigeration effects of a heat exchanger located beneath the vapor-liquid interface of liquid oxygen. This study predicts the mass liquefaction rate and heat transfer coefficient for liquid oxygen using two different models, a Kinetic Theory Model and a Cold Plate Model, and compares both models to experimental data. The Kinetic Theory Model overestimated the liquefaction rate and heat transfer coefficient by five to six orders of magnitude, while the Cold Plate Model underestimated the liquefaction rate and heat transfer coefficient by one to two orders of magnitude. This study also suggested a model to predict the densification rate of liquid oxygen, while the system is maintained at constant pressure. The densification rate model is based on transient heat conduction analysis and provides reasonable results when compared to experimental data.

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