منابع مشابه
Analysis of a Supercritical Hydrogen Liquefaction Cycle
A supercritical hydrogen liquefaction cycle is proposed and analyzed numerically. If hydrogen is to be used as an energy carrier, the efficiency of liquefaction will become increasingly important. By examining some difficulties of commonly used industrial liquefaction cycles, several changes are suggested and a readily scalable, supercritical, helium-cooled hydrogen liquefaction cycle is propos...
متن کاملKinetics of Coal Liquefaction
Information on t h e r a t e s o f coa l d i s s o l u t i o n which i s needed i n t h e design o f r e a c t o r s i n a c o a l l i q u e f a c t i o n p l a n t has been very l i m i t e d ; t h e r e f o r e , mcthods a r e needed by which d i s s o l u t i o n r a t e d a t a can be ex t r apo la t ed t o o t h e r o p e r a t i o n cond i t ions . In t h i s s e c t i o n , t h e r a t e...
متن کاملReaction Engineering of Coal Liquefaction
INTRODUCTION A Brief History of Coal Liquefaction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Process Overview: What Goes In and What Goes Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Need to Motivate Remaining Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
متن کاملDesign of the Reactor, Selection of Catalyst for Ortho to Para Hydrogen Conversion and Preliminary Design of Cryogenic System for its Liquefaction
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...
متن کاملLiquefaction of Earth Embankment Dams
Paul C. Rizzo Associates, Inc. (RIZZO) has developed efficient computational tools to evaluate the liquefaction potential of earth embankment dams located within high risk seismic regions. Two relevant case histories are the Saluda Dam and the Santee Cooper East Dam Extension, both structures susceptible to liquefaction, and located in South Carolina. Saluda Dam presents liquefaction risks with...
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ژورنال
عنوان ژورنال: Nature
سال: 1898
ISSN: 0028-0836,1476-4687
DOI: 10.1038/058077c0