From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 1922/CH4/EX4.9/4_9.sce | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100755 1922/CH4/EX4.9/4_9.sce (limited to '1922/CH4/EX4.9/4_9.sce') diff --git a/1922/CH4/EX4.9/4_9.sce b/1922/CH4/EX4.9/4_9.sce new file mode 100755 index 000000000..7fed8f217 --- /dev/null +++ b/1922/CH4/EX4.9/4_9.sce @@ -0,0 +1,28 @@ +clc +clear +//Initialization of variables +R=8.314 +cp=35.58 +n=100/16 +T1=300 //K +T2=500 //K +k=1.305 +P2=3 //Mpa +P1=0.5 //Mpa +Ts=290 //K +//calculations +cv=cp-R +Wi=n*R*T1/(k-1) *((P2/P1)^((k-1)/k) -1) +Hi=Wi +Ha=n*cp*(T2-T1) +eta=abs(Hi/Ha) +dss1=cp*log(T2/T1) - R*log(P2/P1) +Wl1=Ts*dss1 +dss2=n*cp*log(T2/T1) +dss3=abs(Ha/Ts) +dsst=dss2+dss3 +Wl2=-Ts*dss2 +Ha +Wlost=Wl1+Wl2 +//results +printf("Thermodynamic efficiency = %.3f",eta) +printf("\n Net work lost = %d kJ",Wlost) -- cgit