initial commit / add all books

1 files changed, 29 insertions, 0 deletions

diff --git a/746/DEPENDENCIES/10_12.sce b/746/DEPENDENCIES/10_12.sce
new file mode 100755
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+++ b/746/DEPENDENCIES/10_12.sce
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+//Power required//

+pathname=get_absolute_file_path('10.12.sce')

+filename=pathname+filesep()+'10.12-data.sci'

+exec(filename)

+//From given graph, for maximum delivery condition, Q=48.5gpm.

+//Volume of oil per revolution delivered by the pump(in in^3/rev):

+vc=Qe/N*231

+//Volumetric Effciency of pump at max flow:

+Effv=vc/va

+//Operating point of the pump is found to be at 1500 psig,Q=46.5gpm

+//Power delivered by the fluid(in hp):

+Pf=Qo*po1/7.48/60*144/550

+//Input power(in hp):

+Pi=Pf/Effp

+//The power delivered to the load(in hp):

+Pl=Q*(po1)/7.48/60*144/550

+//Power dissipated by throttling(in hp):

+Pd=Pf-Pl

+//The dissipation with the variable displacement pump(in hp):

+Pvd=Q*(po2-po1)/7.48/60*144/550

+//Power required for te load sensing pump if pump pressure is 100psi above that required by the load(in hp):

+Pls=Q*100/7.48/60*144/550

+printf("\n\nRESULTS\n\n")

+printf("\n\nVolume of oil per revolution delivered by the pump: %.3f in^3/rev\n\n",vc)

+printf("\n\nRequired pump power input: %.3f hp\n\n",Pi)

+printf("\n\nPower deliverd to the load: %.3f hp\n\n",Pl)

+printf("\n\nPower dissipated by throttling: %.3f hp\n\n",Pd)

+printf("\n\nThe dissipation with the variable displacement pump: %.3f hp\n\n",Pvd)

+printf("\n\nPower required for te load sensing pump if pump pressure is 100psi above that required by the load: %.3f hp\n\n",Pls)