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Diffstat (limited to '3814/CH7/EX7.7/EX7_7.sce')
| -rw-r--r-- | 3814/CH7/EX7.7/EX7_7.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/3814/CH7/EX7.7/EX7_7.sce b/3814/CH7/EX7.7/EX7_7.sce new file mode 100644 index 000000000..52f5252d2 --- /dev/null +++ b/3814/CH7/EX7.7/EX7_7.sce @@ -0,0 +1,16 @@ +// design of termengor power stations
+// ex 7.7 pgno.178
+ clc
+ Q=125.4 // flow rate at m3/s
+ H=101 // m
+ N=214.3 // speed in rev/min
+ p=90e6 // power to turbine in wattsr
+ g=9.8
+ w=(2*N*%pi)/60
+ mprintf('\n Wt =%f rad/s',w)
+ wt=(w*(sqrt(p/10^3)))/((g*H)^(5/4))
+ mprintf('\n wt= %f',wt)
+ Ns=(N*sqrt(90*1000))/((H)^(5/4))// specific speed
+ mprintf('\n Ns = %f ',Ns)
+ n0=p/(9800*Q*H) // overall efficiency
+ mprintf('\n Over all efficiency n0= %f percentage',n0*100)
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