Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 298 for “"refrigeration"”.
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Cryogenic optical refrigeration
… thesis compiles recent achievements in optical refrigeration, cooling a 5 wt. % ytterbium doped yttrium lithium fluoride (Yb+3:YLF) crystal through anti-Stokes fluorescence to a new record low temperature. This is the coldest temperature to date, without the use of cryogens or mechanical …
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Centrifugal refrigeration with ammonia
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1947
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Condensation in refrigeration condensers.
Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Thesis. 1972. Ph.D.
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Magnetically augmented cryogenic refrigeration
Thesis (Mech. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Hybrid thermoelectric-ejector refrigeration system /
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Progressively, there has been a substantial shift in emphasis with regards to forest governance and management. Forests management policies are directed toward conserving biodiversity and maintaining ecosystem services rather …
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Experimental investigation of vortex refrigeration
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1947
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An Investigation of Electrochemical Processes for Refrigeration
A number of indirect methods for refrigeration are reviewed.
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Active Insulin Analogs That Do Not Require Refrigeration
… sensitive process, and thus do not require refrigeration. Solid phase peptide synthesis techniques and the incorporation of backbone modified amino acids into peptide sequences will be used to design novel insulin analogs.
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Theoretical and experimental analysis of the thermoacoustic refrigeration
… is studied in detail and its application to refrigeration is analyzed. This new refrigerator which uses resonant high amplitude sound in inert gases to pump heat will be described. It will be seen that without any moving parts, except the driver (speaker diaphragm), this refrigerator is as …
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Refrigerant charge reduction in small commercial refrigeration systems
This paper presents analysis of location of refrigerant inventory and numerical results of charge reduction in a typical bottle cooler. The original unit was first characterized by determining its capacity, the coefficient of performance (COP), pull-down characteristics, and total charge using …
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Theoretical aspects of sorption refrigeration using organic compounds
Refrigeration devices for essential food storage and preservation of medicine are among the most significant techniques developed in the past few decades. In many regions of Africa, the shortage of sustainable power sources and the abundance of solar energy make solar refrigerators a promising …
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Studies of superfluid stirling and pulse tube refrigeration
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Laser (Cooling) Refrigeration in Erbium Based Solid State Materials
… of erbium based solid state materials for laser refrigeration in bulk material. A great deal of work in the field has been focused on the use of ytterbium based ZBLAN glass. Some experiments have also reported cooling in thulium based solid state materials but with considerably less success. We …
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Investigation of miniature lithium-bromide/water absorption refrigeration systems
… which are associated with vapour compression refrigeration systems, alternative cooling means, like the Lithium-Bromide/Water (LiBr/H2O) absorption refrigeration system, are being investigated and produced in developed countries. However, the majority of these LiBr/H2O absorption refrigeration …
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Thermodynamic analysis of a three-fluid absorption refrigeration machine
… thesis investigates the three-fluid absorption refrigeration system operating on lowgrade (heat) energy. In particular the temperature-time response of the various components of a domestic size absorption unit were investigated with respect to the pressure of hydrogen in the system under varying …
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