Fig. 4: The design and performance of the cooling devices.
From: Shearo-caloric effect enhances elastocaloric responses in polymer composites for solid-state cooling
a Ideal schematic diagram of a single cooling cycle for the designed double-unit cooling device under the strain level from 0% to 600%, where, M represents the servo motor, U1 and U2 represent unit 1 and 2, respectively, D1 and D2 represent the driving wheels of U1 and U2, respectively, S1 represents 1GNS/HH sample, S2 represents traction rope made of ultra-high molecular weight polyethylene fiber, V represents one-way pump, the white dashed arrows represent the directions of the water flow and directions of the rotation of driving wheels. U1 and U2 are coaxially connected to the right-angle conversion gearbox via two couplings. b ΔT of water versus time of the single-unit and the double-unit cooling devices under the flow rate of 1.2 mL min−1 when the heat sink was maintained in an ambient environment and the heat source with different power values was kept in an insulated reservoir. c COPsys, \(\dot{Q}\)c, and \(\dot{W}\)in as a function of Tspan for the single-unit and double-unit cooling devices under a flow rate of 1.2 mL min−1.
