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 --- 2969/CH7/EX7.7/Ex7_7.sce | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100755 2969/CH7/EX7.7/Ex7_7.sce (limited to '2969/CH7/EX7.7') diff --git a/2969/CH7/EX7.7/Ex7_7.sce b/2969/CH7/EX7.7/Ex7_7.sce new file mode 100755 index 000000000..0f0b951a5 --- /dev/null +++ b/2969/CH7/EX7.7/Ex7_7.sce @@ -0,0 +1,18 @@ +clc +clear +//DATA GIVEN +IP=30; //indicted power in kW +BP=26; //Brake Power in kW +N=1000; //engine speed in R.P.M. +F=0.35; //fuel per brake power hour in kg/BP/h +C=43900; //calorific value of fuel used in kJ/kg + +Fc=F*BP; //fuel consumption per hour +Mf=Fc/3600; +ETAti=IP/(Mf*C); //Indicted thermal eficiency +ETAtb=BP/(Mf*C); //Brake thermal efficiency +ETAm=BP/IP; //Mechanical efficiency + +printf(' (i) The Indicted thermal eficiency is: %5.3f or %2.1f percent. \n',ETAti,(ETAti*100)); +printf(' (ii) The Brake thermal efficiency is: %5.3f or %2.1f percent. \n',ETAtb,(ETAtb*100)); +printf('(iii) Mechanical efficiency is: %5.3f or %2.1f percent. \n',ETAm,(ETAm*100)); -- cgit