Degree of supercooling of liquid refrigerant was increased in subcooled finned tube heat exchanger by heat conduction transfer along transverse direction and forced convective heat transfer.

• 过冷段翅片管换热器通过横向导热和强制对流换热可增大制冷剂液体过冷度，制热工况下，可使系统性能系数COP提高约19%25，并有效降低翅片表面结霜。