Disclosed herein is an electromagnetic shielding housing including a housing body, and a fan unit coupled to the housing body, wherein an electromagnetic shielding layer is provided on an inner surface of the housing body, and the fan unit includes a fan configured to generate an air flow into an internal space of the housing body, and a Peltier element configured to cool air flowing into the internal space of the housing body.

An apparatus for waste heat recovery is provided. The apparatus includes a base block disposed adjacent to a heat source, a thermoelectric generator including a first end and a second end, the first end being thermally coupled to the base block and configured to receive heat from the heat source, and a thermoelectric cooler including a third end and a fourth end, the third end being thermally coupled to the second end. The thermoelectric cooler is configured to receive an electric current, which causes the third end to cool and the fourth end to heat such that the third end conducts heat from the second end. Related apparatus, systems, techniques, and articles are also described.