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 --- 1026/CH5/EX5.1/Example5_1.sce | 15 +++++++++++++++ 1026/CH5/EX5.2/Example5_2.sce | 29 +++++++++++++++++++++++++++++ 1026/CH5/EX5.3/Example5_3.sce | 33 +++++++++++++++++++++++++++++++++ 3 files changed, 77 insertions(+) create mode 100755 1026/CH5/EX5.1/Example5_1.sce create mode 100755 1026/CH5/EX5.2/Example5_2.sce create mode 100755 1026/CH5/EX5.3/Example5_3.sce (limited to '1026/CH5') diff --git a/1026/CH5/EX5.1/Example5_1.sce b/1026/CH5/EX5.1/Example5_1.sce new file mode 100755 index 000000000..2eeb72cd0 --- /dev/null +++ b/1026/CH5/EX5.1/Example5_1.sce @@ -0,0 +1,15 @@ +//chapter5,Example5_1,pg 97 + +T1=1.5 + +T2=1 + +A=20 + +V=10*8*6 + +a=((0.161*V)/(2*A))*((1/T2)-(1/T1)) + +printf("absorption coefficient\n") + +printf("a=%.3f Sabines",a) \ No newline at end of file diff --git a/1026/CH5/EX5.2/Example5_2.sce b/1026/CH5/EX5.2/Example5_2.sce new file mode 100755 index 000000000..be7b20a5a --- /dev/null +++ b/1026/CH5/EX5.2/Example5_2.sce @@ -0,0 +1,29 @@ +//chapter5,Example5_2,pg 97 + +V=3000 + +T1=3.5//reverberation time + +A=(0.161*V)/T1 + +l=20 + +b=15 + +h=10 + +S=2*((l*b)+(b*h)+(h*l)) + +sum_a=A/S + +am=0.5 + +a=0.106 + +T2=2.5//reverberation time after cloth use + +S1=(((0.161*V)/(am-a))*((1/T2)-(1/T1))) + +printf("area of wall covered by curtain cloth\n") + +printf("S1=%.3f sq.m",S1) \ No newline at end of file diff --git a/1026/CH5/EX5.3/Example5_3.sce b/1026/CH5/EX5.3/Example5_3.sce new file mode 100755 index 000000000..5b7435d22 --- /dev/null +++ b/1026/CH5/EX5.3/Example5_3.sce @@ -0,0 +1,33 @@ +//chapter5,Example5_3,pg 98 + +V=1450 + +A1=112*0.03//absorption due to plastered wall + +A2=130*0.06//absorption due to wooden floor + +A3=170*0.04//absorption due to plastd. celing + +A4=20*0.06//absorption due to wooden door + +A5=100*1//absorption due to cushioned chairs + +sum_as=A1+A2+A3+A4+A5 + +T1=(0.161*V)/sum_as//reverberation time case-1 + +T2=(0.161*V)/(sum_as+(60*4.7))//persons=60,A=4.7 case-2 + +T3=(0.161*V)/(sum_as+(100*4.7))//seat cushioned=100 rev. case-3 + +printf("rev. time for case-1\n") + +printf("T1=%.3f sec",T1) + +printf("\nrev. time for case-2\n") + +printf("T2=%.3f sec",T2) + +printf("\nrev. time for case-3\n") + +printf("T3=%.3f sec",T3) -- cgit