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Comparison of three methods for natural gas dehydration

Journal of Natural Gas Chemistry 2011年第5期20卷 471-476页

作者： michal netusil Pavel Ditl Department of Process Engineering Czech Technical University

This paper compares three methods for natural gas dehydration that are widely applied in industry：（1） absorption by triethylene glycol, （2） adsorption on solid desiccants and （3） condensation. A comparison is made according to their energy demand and suitability for use. The energy calculations are performed on a model where 105 Nm3/h water saturated natural gas is processed at 30 °C. The pressure of the gas varies from 7 to 20 MPa. The required outlet concentration of water in natural gas is equivalent to the dew point temperature of -10 °C at gas pressure of 4 MPa.

关键词： gas reservoir underground gas storage natural gas gas dehydration

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Design of the Composite Steel-Glass Beams with Semi-Rigid Polymer Adhesive Joint

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Journal of Civil Engineering and Architecture 2012年第8期6卷 1059-1069页

作者： michal netusil Martina Eliasova Department of Steel and Timber Structures Faculty of Civil Engineering Czech Technical University in Prague Prague 14000 Czech Republic

New and high transparent structural element, steel-glass composite beam was developed in respect to fabrication, static-structural and architectural criteria and consists of steel flanges and glass web assembled together by semi-rigid polymer adhesive, which is the key element of whole composite system. These beams can be used mainly as members of high transparent roof or floor structure as well as stiffening fins for large area glass facades. This paper deals with experimental research performed at CTU （Czech Technical University） Prague, which started by adhesive selection and initial material tests by ISO527, continued via small-scale steel-glass connection tests and graduated by full-scale tests of hybrid beams with the span of 4 m. Generalized results of these experiments, analytical and numerical studies serve as device, how to accurately predict the behavior of the beam, describe the stress distribution along the cross section and safely and economically design such a kind of structure with semi-rigid shear connection, made by polymer adhesive.

关键词： Steel-glass composite beam polymer adhesive FE modeling semi-rigid joint.

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