title: A high-efficiency power cycle in which hydrogen is compressed by absorption in metal hydrides.
abstract: A high-efficiency power cycle is proposed in which molecular hydrogen gas is used as a working fluid in a regenerative closed Brayton cycle. The hydrogen gas is compressed by an absorption-desorption cycle on metal hydride (FeTiH(x)) beds. Low-temperature solar or geothermal heat (temperature about 100 degrees C) is used for the compression process, and high-temperature fossil fuel or nuclear heat (temperature about 700 degrees C) supplies the expansion work in the turbine. Typically, about 90 percent of the high-temperature heat input is converted to electricity, while about 3 kilowatts of low-temperature heat is required per kilowatt of electrical output.
authors.forename: J R
authors.initials: JR
authors.lastname: Powell
authors.forename: F J
authors.initials: FJ
authors.lastname: Salzano
authors.forename: W S
authors.initials: WS
authors.lastname: Yu
authors.forename: J S
authors.initials: JS
authors.lastname: Milau