  We propose and theoretically investigate the behavior of a ballistic
Aharonov-Bohm (AB) ring when embedded in a N-S two-terminal setup, consisting
of a normal metal (N) and superconducting (S) leads. This device is based on
available current technologie and we show in this work that it constitutes a
promising hybrid quantum thermal device, as quantum heat engine and quantum
thermal rectifier. Remarkably, we evidence the interplay of single-particle
quantum interferences in the AB ring and of the superconducting properties of
the structure to achieve the hybrid operating mode for this quantum device. Its
efficiency as a quantum heat engine reaches $55\%$ of the Carnot efficiency,
and we predict thermal rectification factor attaining $350\%$. These
predictions make this device highly promising for future phase-coherent
caloritronic nanodevices.
