networks questions

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networks questions

Post by bassem zakarya on Mon 29 Dec 2008, 11:08 am

salamo 3alikom

ya gama3a ana ba3tazer l 2ay 7ad kan taleb menny enny 2a3od ma3ah ashra7loh networks bas ana fe3lan maznoo2 filwa2t la2enn howa dah
l wa2t elly bazaker feeh fe3lan Very Happy

fa momken law 7ad 3ando so2al yes2alo 3al l forum hena wana 2a7awel agawboh w rabbena ywaffa2na game3an insha2allah
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Re: networks questions

Post by abo sabry on Mon 29 Dec 2008, 10:20 pm

انا عندى سؤال

ازيك؟؟؟؟
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Re: networks questions

Post by bassem zakarya on Mon 29 Dec 2008, 10:50 pm

الحمد لله
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Re: networks questions

Post by amelsakka on Tue 30 Dec 2008, 3:06 am

Excuse me, Bassem.
I'm available if anyone needs any clarifications in Networks. I'm available Tuesday and Wednesday.

..
Also I'm ready for any questions here, if Bassem was not available for some time.


Last edited by amelsakka on Thu 01 Jan 2009, 1:41 am; edited 1 time in total
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Re: networks questions

Post by bassem zakarya on Tue 30 Dec 2008, 6:50 am

thx Sakka for ur help Smile
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Re: networks questions

Post by Mana on Thu 01 Jan 2009, 3:44 pm

hya elmafrod el Qmin=0.5 to 0.7 Qaverage
wala elmafrod en Qmin=1.5 to 1.7 Qaverage .......asl el dr fe el lecturelma ad ymlena el gadwel 2al enha mn 1.5 to 1.7 Qaverage bs fe nafs el lecture la2et karm katb fe war2o enha mn 0.5 to 0.7 Qaverage......
7ad y3rf hya elmafrod b2a kam????
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Re: networks questions

Post by kujo on Thu 01 Jan 2009, 4:31 pm

Qmin =0.5 to 0.7 Qavg
1.7 Qavg is the max-daily cant be taken Qmin

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Re: networks questions

Post by Mana on Thu 01 Jan 2009, 4:34 pm

asl lo ana katbha 3'alt yb2a ezay karm howa kman 7ayktbha 3a'lt fe el lecture eltanya fe el gadwelela7'er....yb2a m3ana kda en Dr yehia w howa fe el lecture 2alha 3'alt la2n ana makontsh a3da ganb karm w now m3aya el lecture bta3ty w bta3t karm w el 2 maktob fehom en Min Demand=1.5 to 1.7 Qaverage....
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Re: networks questions

Post by bassem zakarya on Thu 01 Jan 2009, 6:08 pm

im with u kujo
1.7Qave = Qmax daily which can't be takes as minimum demand
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Re: networks questions

Post by tatooo on Fri 02 Jan 2009, 1:38 am

take Qmin=.6Qav
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Re: networks questions

Post by engy on Fri 02 Jan 2009, 1:19 pm

so2al fe sheet 2 :
Q=RCn * Pn
RCn ba2a =???
w el I hatb2a tarakomeya wala ha5od talet wa7da

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Re: networks questions

Post by kujo on Fri 02 Jan 2009, 1:32 pm

i use this :
r: rate of increase in water consumption
R: rate of increase in population
n=target year - current year
r=R/10 .................say R=2% then r= 2/1000
RCn=RCo*(1+r)^n

plz correct me if i am wrong ^^

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Re: networks questions

Post by Mana on Fri 02 Jan 2009, 2:44 pm

Ana bs 3ayaza as2l 7aga first dah
RCn=RCo*(1+r)^n
ana msh katbah 7'als 3andy plz dah sa7 first...tany 7aga msh elmafrod en zay ma el dr edana fe el lecrure ne7l .....
tayb el mas2laa bta3t el sheet deh ezay ana 7a7elha mn 3'er ma a7sb el population ...e7na a7'dna fe el lecture en Population fe el fueture tet7asb b arithematic aw geomteric ...tayb fen b2a el Ka aw kg....
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Re: networks questions

Post by engy on Fri 02 Jan 2009, 3:12 pm

kalamek sa7 haguib el Pn using ka or Kg
ana batkalem 3ala el RCn moch3arfa aguibha
laenha fe3lan mech fel lect. ely ana katbaha
fehmty so2aly ...??

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Re: networks questions

Post by Mana on Fri 02 Jan 2009, 3:13 pm

aywa fahma ...la2n hya kman msh 3andy...w msh 3and karm fe el lecture bardo Very Happy:D:D ana 3andy 7al e7na nshof 78ad bta3 sy7ya y7elha Very Happy:D
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Re: networks questions

Post by maged on Fri 02 Jan 2009, 3:48 pm

RCn=consumption rate=I=((1+r)^n) -1
where:
n : no. of years & r=(rate of pop.increase/10)
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Re: networks questions

Post by amelsakka on Fri 02 Jan 2009, 3:54 pm

I can't understand which problem you are talking about ??
Is that the same sheet2 I have ??

In sheet2, the problem gives the rates of population increase and it didn't mention the rate of water consumption increase, so I think we will simply ignore the water consumption increase and use the given consumption rate.

Why do I feel that you are talking about totally different problem ?
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Re: networks questions

Post by amelsakka on Fri 02 Jan 2009, 3:56 pm

maged wrote:RCn=consumption rate=I=((1+r)^n) -1
where:
n : no. of years & r=(rate of pop.increase/10)

Really ??
I didn't attend that lecture, but are you sure that the Dr told us to use this formula if not mentioned ???
I thought that those formulas are empirical and should be given in exam.
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Re: networks questions

Post by Mana on Fri 02 Jan 2009, 4:00 pm

Hya walahy nafs el problem ...bs fe 7al en fe nas ma3mltsh ignore ll water consumption increse w kman e7na kona bnklm en Dr YEhia edana bs 3 laws fe el lecture deh...dah ely ana katbah w ay 7ad katbo
Pn=Pnode+Ka(Tn-Tnode)Pnode
I(Rc=increse of rate of consumption)=(1+r)^n -1
r=rate of population increse /10
Qaverage=Rcn *Pn
dah ely Dr elmafrod 2alo fe ellecture.....
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Re: networks questions

Post by maged on Fri 02 Jan 2009, 4:04 pm

والله ده اللي مكتوب في المحاضره
2)consumption rate (RCn)

--------------------------
I=((1 r)^n)-1

;r=rate of pop. increase/10
n=no. of years
I=indrease of rate consumption
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Re: networks questions

Post by Mana on Fri 02 Jan 2009, 4:06 pm

lo sure ok bs asl now ana m3aya war2y w m3aya mo7drat karm w engy kman kolna katben en el Rc hya el consumption rate...
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Re: networks questions

Post by engy on Fri 02 Jan 2009, 4:09 pm

ana katba en I : increase of CR
mech CRn

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Re: networks questions

Post by Mana on Fri 02 Jan 2009, 4:12 pm

Crn hya cnsumption rate fe el target year
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Re: networks questions

Post by amelsakka on Fri 02 Jan 2009, 4:14 pm

Wallahi mesadda2ko Smile

My simply question is:
Do the dr said that this relations are empirical or we can use it in any problem ??

For example, the first lecture of Dr Ali, he used an empirical equation to calculate the cost. This equation won't be used in any problem, and the cost equation should be given.
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Re: networks questions

Post by Mana on Fri 02 Jan 2009, 4:20 pm

dah ely et2al fe ellecture 3ala el goz22 dah
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Re: networks questions

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