Fig. 1: Principle of the roller-driven eC refrigerator.

a driving mechanism. b illustration of cascaded eC cooling with two ribbons using direct contact heat exchange. c principle of work recovery. d 3-D model of the roller. e photo of the prototype. f infrared image of the heat sink, heat source, and intermediate heat exchanger (IHX) in the prototype. The horizontal bars are part of a frame that mounts the IHX, the heat sink, and the heat source.