Dept.of Power & Environment,Zhongyuan Inst.of Technology,Zhengzhou 450007,China;
Inst.of Refrigeration and Cryogenics,Shanghai Jiaotong Univ.,Shanghai 200030;
Inst.of Refrigeration and Cryogenics,Shanghai Jiaotong Univ.,Shanghai 200030;
Fujitsu General Inst.of Air-Conditioning Technology Limited,Kawasaki,Japan;
refrigerant; flow boiling; pressure drop performance; small tube;