Dynamic properties in an endoreversible Curzon-Ahlborn engine using a van der Waals gas as working substance

► A Curzon-Ahlborn engine with a different work substance. ► We examine the engine's dynamic and thermodynamic properties. ► Both power output and efficiency of the engine are decreasing functions of τ. ► This engine has half of Carnot's efficiency when λvW=1. ► A critical point of stability is found.