From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 3685/CH20/EX20.14/Ex20_14.sce | 18 ++++++++++++++++++ 3685/CH20/EX20.14/Ex20_14.txt | 5 +++++ 2 files changed, 23 insertions(+) create mode 100644 3685/CH20/EX20.14/Ex20_14.sce create mode 100644 3685/CH20/EX20.14/Ex20_14.txt (limited to '3685/CH20/EX20.14') diff --git a/3685/CH20/EX20.14/Ex20_14.sce b/3685/CH20/EX20.14/Ex20_14.sce new file mode 100644 index 000000000..97c8e6042 --- /dev/null +++ b/3685/CH20/EX20.14/Ex20_14.sce @@ -0,0 +1,18 @@ + +clc +// Given that +n=1.3 // Polytropic index +p1 = 140 // Pressure at point one in kN/m^2 +p2 = 360 // Pressure at point two in kN/m^2 +r_e = 0.4 // Relative efficiency +cv = 18840 // Calorific value in kJ/m^2 +printf("\n Example 20.14\n") +r = (((p2/p1)^(1/n))-1)/((0.75-0.25*((p2/p1)^(1/n)))) +r_k = r+1 +n_ase = 1-(1/((r_k)^(0.4))) +n_th = r_e*n_ase +V_f = n_th*cv/3600 +printf("\n Thermal efficiency = %f percent,\n Gas consumption per kWh on indicated power basis = %f m^3/kWh",n_th*100,V_f) +//The value of answer is different because of round off error + + diff --git a/3685/CH20/EX20.14/Ex20_14.txt b/3685/CH20/EX20.14/Ex20_14.txt new file mode 100644 index 000000000..c69753599 --- /dev/null +++ b/3685/CH20/EX20.14/Ex20_14.txt @@ -0,0 +1,5 @@ + + Example 20.14 + + Thermal efficiency = 19.893582 percemt, + Gas consumption per kWh on indicated power basis = 1.041097 m^3/kWh \ No newline at end of file -- cgit