Ericsson Cycle

Ericsson cycle was devised by J. Ericsson in 1840. It consists of two isothermal and two constant pressure processes.

This cycle is made reversible by the action of a regenerator. The p-v and T-s diagrams of this  cycle are shown in Fig 5.9 (a) and (b) respectively. This cycle is mostly used in closed - cycle gas turbines.

The efficiency of the Ericsson cycle is same as that of Carnot cycle, i.e.