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Can hydrogen be the transportation fuel in an otherwise nuclear economy?
Let’s face it: The global economy should be powered primarily by nuclear power. And it probably will by the end of this century, with a still-significant assist from renewables and hydro. Once nuclear systems are dominant, the costs come down to where gas is now; and when carbon emissions are reduced to a small portion of their present state, it will become obvious that most other sources are only good in niche settings. I mean, why use small modular reactors to load-follow when they can just produce that power instead of buffering it?
John H. Pendergrass
Fusion Science and Technology | Volume 11 | Number 3 | May 1987 | Pages 732-748
Technical Paper | KrF Laser | doi.org/10.13182/FST87-A25045
Articles are hosted by Taylor and Francis Online.
KrF laser intrinsic efficiency increases modestly with increase in losing medium temperature up to at least a few hundred degrees Celsius. Such temperatures are high enough to permit efficient generation of electric power from the large amounts of heat that must be continuously removed from the losing medium of a repetitively pulsed KrF laser in an inertial confinement fusion power plant. The effects of power generation from losing medium heat on netplant efficiency and effective laser efficiency were investigated in a generic systems analysis. Two approaches to efficient, cost-effective generation of electric power from losing medium heat were analyzed in detail: (a) dedicated power generation systems that use losing medium heat as the sole thermal energy source and (b) the use of lasing medium thermal energy to heat main-plant steam cycle feedwater. Feedwater heating gives higher generation efficiencies and is more cost-effective than a dedicated system. Electric power generated from lasing medium heat typically increases power plant efficiency by 2 to 3% absolute and the effective KrF laser efficiency by 2 to 3% absolute. Electric power from losing medium can be used to reduce the fusion power required for a fixed netplant electric power typically by 4 to 5%.