КПД=P1/P2
P1=A/t
A=Q=cpVT
P2=1000 Bт
t=720 c
V=0.0015 м3
P1=(4200*1000*0.0015*88)/720=554400/720=770 Вт
КПД=770/1000=0.77*100=77%
КПД=P1/P2
P1=A/t
A=Q=cpVT
P2=1000 Bт
t=720 c
V=0.0015 м3
P1=(4200*1000*0.0015*88)/720=554400/720=770 Вт
КПД=770/1000=0.77*100=77%