3D-FEM Simulation of a MEMS-Based Electrocaloric Ba(Zr0.2Ti0.8)O-3 Thin-Film Microfluidic Refrigeration Device

作者：Liebschner Rocco^*; Gerlachi Gerald

来源：Energy Technology, 2018, 6(8): 1553-1559.

DOI：10.1002/ente.201800257

• barium titanate
• electrocaloric devices
• ferroic cooling
• microelectromechanical systems
• refrigeration

A microelectromechanical system (MEMS)-based (4x4x2.5mm(3)) active electrocaloric (EC) regenerator (AER) microfluidic system is modeled by a 3D transient thermal and fluid-dynamic finite-element (FE) simulation. Special attention is given to the possibility of connecting individual devices to adapt the cooling performance to particular needs. Three different working fluids and three different fluid velocities are considered. A device using silicone oil as the working fluid at a flow rate of 0.1ms(-1) is proven to be the most promising design candidate. The refrigeration capacity for a single EC cell is 0.223Wcm(-2) and the coefficient of performance (COP) is 0.52.

• 出版日期2018-8