نتایج جستجو برای: hydrogen liquefaction
تعداد نتایج: 149298 فیلتر نتایج به سال:
Heat exchangers are the critical components of refrigeration and liquefaction processes. Selection of appropriate operational conditions for cryogenic recuperative heat exchanger and expansion valve operating in Joule-Thomson cooling system results in improving the performance and efficiency. In the current study, a straightforward procedure is introduced to design an efficient Joule-Thomson co...
Hydrogen is an unusual substance in that its molecule exists in two forms, known as ortho and para, with markedly different properties. Energy level of the ortho molecule is higher than para, therefore, the latter is employed for industrial purposes. Consequently, for a high conversion of ortho to para hydrogen a catalyst reactor must be employed. Therefore, one of the main obj...
hydrogen is an unusual substance in that its molecule exists in two forms, known as ortho and para, with markedly different properties. energy level of the ortho molecule is higher than para, therefore, the latter is employed for industrial purposes. consequently, for a high conversion of ortho to para hydrogen a catalyst reactor must be employed. therefore, one of the main objectives of th...
The article summarizes the research and development of magnetic refrigeration for hydrogen liquefaction, Active Magnetic Regenerative Refrigeration (AMRR) developed by National Institute Materials Science (NIMS). NIMS-AMR consists optimized AMR beds, a superconducting solenoid with correction coils, dedicated liquid vessel level sensor. This also reports first successful demonstration liquefacti...
abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...
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