diff options
Diffstat (limited to '3814/CH7/EX7.8')
| -rw-r--r-- | 3814/CH7/EX7.8/Ex7_8.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/3814/CH7/EX7.8/Ex7_8.sce b/3814/CH7/EX7.8/Ex7_8.sce new file mode 100644 index 000000000..0f2b32b45 --- /dev/null +++ b/3814/CH7/EX7.8/Ex7_8.sce @@ -0,0 +1,17 @@ +// to find JOR power station
+// ex 7.8 pgno.179
+clc
+P=26.1e6 // power in mega watts
+H=587.3 // m
+N=428 // revloution /minutes
+Q=6.85 // m3/s
+w=(2*N*%pi)/60
+g=9.8
+mprintf('\n W= %f rad/s',w)
+wt=(w*(sqrt(P/10^3)))/((g*H)^(5/4))
+mprintf('\n wt =%f',wt)
+Ns=(N*(sqrt(26.1e6)))/(H^(5/4)) // speed
+mprintf('\n Ns = %f',Ns)
+mprintf('\n error in text book they have taken p=26.1e3 instead of 26.1 e6')
+n0=P/(9800*Q*H) // overall efficiency
+mprintf(' \nOverall efficiency n0= %f percentage',n0*100)
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