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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3665/CH14 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3665/CH14')
| -rw-r--r-- | 3665/CH14/EX14.1/Ex14_1.sce | 18 | ||||
| -rw-r--r-- | 3665/CH14/EX14.2/Ex14_2.sce | 15 | ||||
| -rw-r--r-- | 3665/CH14/EX14.3/Ex14_3.sce | 13 | ||||
| -rw-r--r-- | 3665/CH14/EX14.4/Ex14_4.sce | 16 | ||||
| -rw-r--r-- | 3665/CH14/EX14.5/Ex14_5.sce | 16 | ||||
| -rw-r--r-- | 3665/CH14/EX14.6/Ex14_6.sce | 18 |
6 files changed, 96 insertions, 0 deletions
diff --git a/3665/CH14/EX14.1/Ex14_1.sce b/3665/CH14/EX14.1/Ex14_1.sce new file mode 100644 index 000000000..b63a731ca --- /dev/null +++ b/3665/CH14/EX14.1/Ex14_1.sce @@ -0,0 +1,18 @@ +clc//
+//
+//
+
+//Variable declaration
+V=475; //volume(m^3)
+aw=200; //area of wall(m^2)
+ac=100; //area of ceiling(m^2)
+ac_w=0.025; //absorption coefficient of wall
+ac_c=0.02; //absorption coefficient of ceiling
+ac_f=0.55; //absorption coefficient of floor
+
+//Calculation
+sigma_as=(aw*ac_w)+(ac*ac_c)+(ac*ac_f);
+T=0.165*V/sigma_as; //reverberation time of hall(s)
+
+//Result
+printf("\n reverberation time of hall is %0.3f s",T)
diff --git a/3665/CH14/EX14.2/Ex14_2.sce b/3665/CH14/EX14.2/Ex14_2.sce new file mode 100644 index 000000000..15b5c44c1 --- /dev/null +++ b/3665/CH14/EX14.2/Ex14_2.sce @@ -0,0 +1,15 @@ +clc//
+//
+//
+
+//Variable declaration
+V=12500; //volume(m^3)
+T1=1.5; //reverberation time(sec)
+n=200; //number of cushioned chairs
+
+//Calculation
+sigma_as=0.165*V/T1;
+T2=0.165*V/(sigma_as+n); //new reverberation time(s)
+
+//Result
+printf("\n new reverberation time is %0.2f s",T2)
diff --git a/3665/CH14/EX14.3/Ex14_3.sce b/3665/CH14/EX14.3/Ex14_3.sce new file mode 100644 index 000000000..ff3f8ff17 --- /dev/null +++ b/3665/CH14/EX14.3/Ex14_3.sce @@ -0,0 +1,13 @@ +clc//
+//
+//
+
+//Variable declaration
+V=5000; //volume(m^3)
+T=1.25; //time(s)
+
+//Calculation
+sigma_as=0.165*V/T; //total absorption in the hall(OWU)
+
+//Result
+printf("\n total absorption in the hall is %0.3f OWU",sigma_as)
diff --git a/3665/CH14/EX14.4/Ex14_4.sce b/3665/CH14/EX14.4/Ex14_4.sce new file mode 100644 index 000000000..b7bfcb747 --- /dev/null +++ b/3665/CH14/EX14.4/Ex14_4.sce @@ -0,0 +1,16 @@ +clc//
+//
+//
+
+//Variable declaration
+V=9500; //volume(m^3)
+T=1.5; //time(s)
+x=100; //absorption(sabines)
+
+//Calculation
+sigma_as=0.165*V/T; //total absorption in the hall(OWU)
+T=0.165*V/(sigma_as+x); //new period of reverberation(s)
+
+//Result
+printf("\n total absorption in the hall is %0.3f OWU",sigma_as)
+printf("\n new period of reverberation is %0.3f s",T)
diff --git a/3665/CH14/EX14.5/Ex14_5.sce b/3665/CH14/EX14.5/Ex14_5.sce new file mode 100644 index 000000000..52fb55ba8 --- /dev/null +++ b/3665/CH14/EX14.5/Ex14_5.sce @@ -0,0 +1,16 @@ +clc//
+//
+//
+
+//Variable declaration
+V=20*15*5; //volume(m^3)
+T=3.5; //time(s)
+A=950; //surface area(m^2)
+
+//Calculation
+sigma_as=0.165*V/T; //total absorption in the hall(OWU)
+ac=sigma_as/A; //average absorption coefficient
+
+//Result
+printf("\n total absorption in the hall is %0.3f OWU",sigma_as)
+printf("\n average absorption coefficient is %0.3f sabine/m^2",ac)
diff --git a/3665/CH14/EX14.6/Ex14_6.sce b/3665/CH14/EX14.6/Ex14_6.sce new file mode 100644 index 000000000..4f2f9ab4e --- /dev/null +++ b/3665/CH14/EX14.6/Ex14_6.sce @@ -0,0 +1,18 @@ +clc//
+//
+//
+
+//Variable declaration
+V=2265; //volume(m^3)
+sigma_as=92.9; //absorption(m^2)
+a=18.6; //area(m^2)
+
+//Calculation
+T=0.165*V/sigma_as; //reverberation time of hall(s)
+T1=0.165*V/2;
+inc=T1-sigma_as; //increase in absorption(OWU)
+n=inc/a; //number of persons to be seated
+
+//Result
+printf("\n reverberation time of hall is %0.3f s",T)
+printf("\n number of persons to be seated is %0.3f ",n)
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