Working substance:p-h diagram 4000 3000 2000 R134a Tcond:A0-55C ressure 198 ratio 600 500 2.0-3.0 LLL100LOC00bo06066600 300 200 0900 Enthalpy [kJ/kg] x=0.10 00 030 040 050 060 0,70 0.80 40 =0.20 040 0.50 50 2--100 120 140 160T 130 200220 300 150-250W △h≈120~150k/kg 20020 T△h≈2535k/kg 三im,△h WFm,△h/ comp,e/ ←≈65% 3.5-6.0kg/hr no.is 50-80W 上游充通大率 3.0-5.0 compe May11,2018 5 SHANGHA BAO TONG LINIERSITYMay 11, 2018 5 comp,e evap,r COP W Q MSRS  150‐250 W Enthalpy [kJ/kg]  Pressure ratio  2.0 ‐3.0  h  120~150 kJ/kg Qevap ,r  m r h Tevap: 10 ‐25  C Tcond: 40 ‐55  C  h  25~35 kJ/kg  r comp,e o,is m h W     65% 3.5‐6.0 kg/hr 50 ‐80 W 3.0 ‐5.0 R134a Working substance: p‐h diagram