NOVELTY - The thermo-photovoltaic apparatus comprises an emitter including an exhaust duct in which fuel flows along an outer surface of the emitter towards a combustion space to form a shield portion, a reformer that is placed along a reforming space, where protonated nitrogen is injected from an outside of the combustion space along an outer portion of a thermal shield to separate nitrogen and hydrogen, and a photoelectric part located in an outer surface of the reforming unit to convert light into electricity. A fuel adapter is mounted in the shield case.    USE - The thermo-photovoltaic apparatus is useful for producing hydrogen (claimed).    ADVANTAGE - The apparatus can produce hydrogen through a combustion reaction with high energy utilization efficiency and without generating greenhouse gas so as to produce ammonia and hydrogen energy sources in an environment-friendly manner. The residence time of the combustion gas within the heating area can be increased so that the photoelectric conversion efficiency can be increased.    DETAILED DESCRIPTION - The thermo-photovoltaic apparatus comprises an emitter including an exhaust duct in which fuel flows along an outer surface of the emitter towards a combustion space to form a shield portion, a reformer that is placed along a reforming space, where protonated nitrogen is injected from an outside of the combustion space along an outer portion of a thermal shield to separate nitrogen and hydrogen, and a photoelectric part located in an outer surface of the reforming unit to convert light into electricity. A fuel adapter is mounted in the shield case. The combustion space includes a fuel supply route. Multiple fuel inlets face different directions for connecting the fuel supply route to the exterior and the vortex. A virtual straight line is extended from a center portion of the inlets parallelly. The exhaust duct exhausts the burnt fuel between the emitter and the reforming unit while heat-exchanging the injected fuel between the separate space and the shield case. A short diameter portion has smaller diameter as compared to a large diameter part. A flame maintenance unit is located mounted on the outer periphery of the short diameter portion so that the residence time of the flame is increased after fuel is burnt. A catalyst is placed between the shield case and reformer for inducing the reformate reaction of the hydrogen nitrogen to produce ammonia. The reforming unit is made of quartz material.