Cryogenic systems

Ebook Mechanical engineers’ handbook - Volume 4: Energy and power (Fourth Edition) – Part 1 includes contents: Chapter 1 thermophysical properties of fluids; chapter 2 mechanics of incompressible fluids; chapter 3 thermodynamics fundamentals; chapter 4 exergy analysis, entropy generation minimization, and the constructal law; chapter 5 heat transfer fundamentals; chapter 6 temperature measurement; chapter 7 heat flux measurement; chapter 8 furnaces; chapter 9 heat exchangers, vaporizers, and condensers; chapter 10 heat pipes; chapter 11 air heating; chapter 12 cooling electric equipment; ch...

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The results obtained with each experimental configuration are highly consistent for both the Al and Ti centres. In particular, equivalent dose values obtained from eleven of the twelve samples analysed agree at a 1σ confidence level. The various cryogenic systems do no induce any significant systematic bias for ESR dose evaluation.

7p vironald 15-12-2022 7 3   Download

Energy content of biogas is directly proportional to the methane concentration thus, removing impurities increases the energy content of the gas so that it can be used as vehicle fuel or pooled into gas grid. Removing impurities is regarded as biogas upgrading, in doing so, cryogenic method is among different enrichment methods. Cryogenic method involves the subsequent compression and expansion of biogas until the suitable pressure and temperature is attained (in other words until the required purity is attained).

5p quenchua2 18-12-2019 18 0   Download

(bq) part 1 book "thermodynamics and chemistry" has contents: introduction, systems and their properties, the first law, the first law, thermodynamic potentials, the third law and cryogenics, pure substances in single phases, phase transitions and equilibria of pure substances.

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(bq) part 2 book "the crc handbook of thermal engineering" has contents: water desalination, environmental heat transfer, bioheat transfer, cryogenic systems, heat transfer enhancement, direct contact heat transfer, finite difference methods, finite difference methods,... and other contents.

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When large dew-point depressions are required, specialized dehydration systems using highly concentrated glycol will be necessary. If limited space is available, special systems may be used to achieve the required dew point depressions. Normal dehydration systems with TEG glycol purity of 98.5% are capable of achieving dew point depressions up to 70
F. Stripping gas may be used to obtain higher dew point depressions. Vacuum-operated glycol units can achieve glycol purities of up to 99.9% but are rarely used because of:...

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Since the advent of magnetic resonance (MR) imaging, systems with amagnetic field intensity of 1.5 tesla (T) have been deemed the gold standard for different clinical applications in all body areas. Ongoing advances in hardware and software have made theseMRsystems increasingly compact, powerful and versatile, leading to the development of higher magnetic field strength MRsystems (3.0 T) for use in clinical practice and for research purposes. As usually occurs with a new technology, 3.0 T MR imaging units will probably follow the same development trends in the years to come....

247p echbuon 02-11-2012 74 11   Download

CHAPTER 63 CRYOGENIC SYSTEMS Leonard A. Wenzel Lehigh University Bethlehem, Pennsylvania 63.1 63.2 CRYOGENICS AND CRYOFLUID PROPERTIES CRYOGENIC REFRIGERATION AND LIQUEFACTION CYCLES 63.2.1 Cascade Refrigeration 63.2.2 The Linde or JouleThomson Cycle 63.2.3 The Claude or Expander Cycle 63.2.4 Low-Temperature Engine Cycles CRYOGENIC HEATTRANSFER METHODS 63.3. 1 Coiled-Tube-in-Shell Exchangers 63.3.2 Plate-Fin Heat Exchangers 63.3.3 Regenerators INSULATIONSYSTEMS 63.4.1 Vacuum Insulation 63.4.2 Superinsulation 63.4.3 Insulating Powders and Fibers MATERIALSFOR CRYOGENIC SERVICE ...

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CHAPTER 4 2 EXERGY ANALYSIS AND ENTROPY GENERATION MINIMIZATION Adrian Bejan Department of Mechanical Engineering and Materials Science Duke University Durham, North Carolina 42.1 42.2 42.3 42.4 42.5 INTRODUCTION PHYSICAL EXERGY CHEMICAL EXERGY 1 5 3 1 42.6 1 5 3 3 1 5 3 5 42.7 42.8 HEAT TRANSFER STORAGE SYSTEMS SOLAR ENERGY CONVERSION POWER PLANTS 1 5 3 9 1 6 3 1 1 6 3 2 1 6 3 2 ENTROPY GENERATION MINIMIZATION 1 5 3 7 42.9 CRYOGENICS 1 5 3 8 42.1 INTRODUCTION In this chapter, we review two important methods that account for much of the newer work in engineering thermodynamics...

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Water solubility in any open or semi-open system can be important. The dilution of a salt or glycol brine, or of alcohol by entering moisture, merely necessitates strengthening of the brine.

33p liemthanh 16-12-2009 72 6   Download

The science and technology of deep refrigeration processing occurring at temperatures lower than about 150 K is the field of cryogenics (from the Greek kryos, icy cold).

25p liemthanh 16-12-2009 79 7   Download