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 --- 2762/CH4/EX4.3.2/4_3_2.sce | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100755 2762/CH4/EX4.3.2/4_3_2.sce (limited to '2762/CH4/EX4.3.2/4_3_2.sce') diff --git a/2762/CH4/EX4.3.2/4_3_2.sce b/2762/CH4/EX4.3.2/4_3_2.sce new file mode 100755 index 000000000..897e92923 --- /dev/null +++ b/2762/CH4/EX4.3.2/4_3_2.sce @@ -0,0 +1,25 @@ +//Transport Processes and Seperation Process Principles +//Chapter 4 +//Example 4.3-2 +//Principles of Steady State Heat Transfer +//given data +//si units +//nomenclature of unmentioned specifications similar to previous example +ka=21.63; +kb=0.2423; +T1=811; +T3=310.8; +r1=0.0254/2; +r2=0.0508/2; +r3=0.0508; +L=0.305; +A1=2*3.14*L*r1;//area of inner surface of cylinder +A2=2*3.14*L*r2; +A3=2*3.14*L*r3; +A1m=(A2-A1)/(log(A2/A1)/log(2.71828183));//log mean of inner surface area and outer surface area +A2m=(A3-A2)/(log(A3/A2)/log(2.71828183)) +Ra=(r2-r1)/(ka*A1m); +Rb=(r3-r2)/(kb*A2m); +q=(T1-T3)/(Ra+Rb); +T2=T1-(q*Ra); +mprintf("the intermediate wall temp is %f K",T2) -- cgit