Civil Engineering - Water Supply Engineering - Discussion
Discussion Forum : Water Supply Engineering - Section 1 (Q.No. 13)
13.
Distribution mains of any water supply, is normally designed for its average daily requirement
Discussion:
23 comments Page 2 of 3.
Dvs said:
7 years ago
For flushing systm the water requirement is 200 lpcd.
Hamid raza hashmi said:
7 years ago
180% is correct. I agree with it.
Arpit Dubey said:
6 years ago
Maximum daily discharge is 1.5 of avg daily discharge.
And Maximum hourly discharge is 1.5 of maximum daily discharge. (OR). 2.25 of avg daily discharge.
And Maximum hourly discharge is 1.5 of maximum daily discharge. (OR). 2.25 of avg daily discharge.
Vinay Kumar said:
5 years ago
Maximum daily demand = 1.8 x average daily demand.
Maximum hourly demand of maximum day i.e. Peak demand.
= 1.5 x average hourly demand.
= 1.5 x Maximum daily demand/24.
= 1.5 x (1.8 x average daily demand)/24.
= 2.7 x average daily demand/24.
= 2.7 x annual average hourly demand.
Maximum hourly demand of maximum day i.e. Peak demand.
= 1.5 x average hourly demand.
= 1.5 x Maximum daily demand/24.
= 1.5 x (1.8 x average daily demand)/24.
= 2.7 x average daily demand/24.
= 2.7 x annual average hourly demand.
(1)
Jay said:
5 years ago
Can anyone justify it, please?
Aravind said:
5 years ago
Design criteria - coincidental draft or max hourly demand.
Max hourly demand = 1.5 x max daily demand.
= 2.7 x avg daily demand.
= 270%.
Max hourly demand = 1.5 x max daily demand.
= 2.7 x avg daily demand.
= 270%.
Monika said:
5 years ago
I don't understand? Please explain me clearly.
Chaman said:
5 years ago
Thanks everyone for explaining it.
Ashwani Kumar said:
5 years ago
The question is wrong.
Generally distribution system should be designed for maximum hourly consumption of maximum day i.e. Peak Demand or Coincident draft, whichever is more.
God-rich formula to find peak demand to an average demand ratio.
P = 180 x t^ (-0. 1)
Where P = percent of the annual average draft for the time 't' in days.
So, I think 180% is the right answer.
Generally distribution system should be designed for maximum hourly consumption of maximum day i.e. Peak Demand or Coincident draft, whichever is more.
God-rich formula to find peak demand to an average demand ratio.
P = 180 x t^ (-0. 1)
Where P = percent of the annual average draft for the time 't' in days.
So, I think 180% is the right answer.
Abhishek Das said:
4 years ago
If daily then 180% and if hourly then 150%.
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