1 files changed, 35 insertions, 0 deletions
diff --git a/551/CH12/EX12.20/20.sce b/551/CH12/EX12.20/20.sce
new file mode 100755
index 000000000..7d3d6a631
--- /dev/null
+++ b/551/CH12/EX12.20/20.sce
@@ -0,0 +1,35 @@
+clc
+
+h1=3250; //kJ/kg
+h2=2170; //kJ/kg
+h_f2=173.9; //kJ/kg
+
+W=h1-h2;
+Q=h1-h_f2;
+
+n_thermal=W/Q;
+disp("Thermal effifciency=")
+disp(n_thermal);
+
+x2=0.83; //From mollier chart
+disp("x2=")
+disp(x2)
+
+
+disp("Second case")
+
+h1=3250; //kJ/kg
+h2=2807; //kJ/kg
+h3=3263; //kJ/kg
+h4=2426; //kJ/kg
+h_f4=173.9; //kJ/kg
+W=h1-h2+h3-h4;
+Q=h1-h_f4+h3-h2;
+
+n_thermal=W/Q;
+disp("Thermal effifciency=")
+disp(n_thermal);
+
+x4=0.935; //From mollier chart
+disp("x4=")
+disp(x4)