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Analysis of thermal efficiency for hydrogasification and gasification/methanation

Description: To confirm the potentially greater thermodynamic efficiency of hydrogasification, a study was made of carbon conversion and resulting thermal efficiency of methane production via hydrogasification as compared to gasification/methanation. The alternative systems were first compared on an ideal process basis. This approach neglects limitations imposed by the thermodynamics and kinetics of the various chemical reactions and indicates maximum potential conversion of coal to methane. These results w… more
Date: December 21, 1979
Creator: DiNapoli, R.N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Segregation effects in JBK-75

Description: Chemical segregation of alloying elements, can be a severe problem in complex alloys. Many problems have been experienced with developing fabrication processes for JBK-75 and it is suggested that these difficulties may be related in part to the degree of chemical heterogeneity that exists in the alloy. Early testing and qualification of the alloy was made on relatively homogeneous samples, which came from small diameter ingots. In large size ingots used for production, it is more difficult to a… more
Date: December 21, 1979
Creator: Mataya, M. C.; Edstrom, C. M.; Krenzer, R. W. & Doyle, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

General Dynamics Convair Division approach to structural analysis of large superconducting coils

Description: Most of the procedures and techniques described were developed over the past three years. Starting in late 1976, development began on high-accuracy computer codes for electromagnetic field and force analysis. This effort resulted in completion of a family of computer programs called MAGIC (MAGnetic Integration Calcaultion). Included in this group of programs is a post-processor called POSTMAGIC that links MAGIC to GDSAP (General Dynamics Structural Analysis Program) by automatically transferrin… more
Date: March 21, 1979
Creator: Baldi, R.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reactor for simulation and acceleration of solar ultraviolet damage

Description: An environmental test chamber providing acceleration of uv radiation and precise temperature control (+- 1/sup 0/C) has been designed, constructed and tested. This chamber allows acceleration of solar ultraviolet up to 30 suns while maintaining temperature of the absorbing surface at 30/sup 0/C to 60/sup 0/C). This test chamber utilizes a filtered medium pressure mercury arc as the source of radiation, and a combination of selenium radiometer and silicon radiometer to monitor solar ultraviolet … more
Date: September 21, 1979
Creator: Laue, E. & Gupta, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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