  We consider a four-dimensional charged hyperbolic black hole as working
matter to establish a black hole holographic heat engine, and use the
rectangular cycle to obtain the heat engine efficiency. We find that when the
increasing of entropy is zero, the heat engine efficiency of the hyperbolic
black hole becomes the well-known Carnot efficiency. We also find that less
charge corresponds to higher efficiency in the case of q > 0. Furthermore, we
study the efficiency of the flat case and spherical case and compare the
efficiency with that of the hyperbolic charged black holes. Finally, we use
numerical simulation to study the efficiency in benchmark scheme.
