The Transient Response of Gas Turbine Plant Heat Exchangers—Additional Solutions for Regenerators of the Periodic-Flow and Direct-Transfer Types

Solutions are provided in nondimensional graphical form for the transient response of the outlet fluid temperatures of a counterflow gas turbine regenerator arising from a step input change of one (either one) of the inlet fluid temperatures. Both direct-transfer and periodic-flow regenerators are considered. The periodic-flow regenerator solutions are derived as a generalized result from a limited number of computer solutions for special cases. The direct-transfer regenerator solutions are derived as a generalized result from a limited number of special case solutions obtained from an electromechanical analog. This report is a continuation and extension of previous work covered in [1, 2, 3, and 4].