Respuesta :
Answer:
(a). The average daily demand of this subdivision is 2444.44 gallon/min.
(b). The design-demand used to design the distribution system is 2444.44 gallon/min.
Explanation:
Given that,
Area = 1100 acres
Number of house in 1 acres = 4
[tex]\text{Number of house in 1100 acres} = 4\times1100[/tex]
[tex]\text{Number of house in 1100 acres} = 4400[/tex]
Per house water demand = 800 g/day/house
(a). We need to calculate the average daily demand of this subdivision
Using formula for average daily demand
[tex]\text{average daily demand}=house\times\text{Per house water demand}[/tex]
[tex]\text{average daily demand}=4400\times800\ gallon/day[/tex]
[tex]\text{average daily demand}=3520000\ gallon/day[/tex]
[tex]\text{average daily demand}=\dfrac{3520000}{24\times60}\ gallon/min[/tex]
[tex]\text{average daily demand}=2444.44\ gallon/min[/tex]
The average daily demand of this subdivision is 2444.44 gallon/min.
(b). We need to calculate the design-demand used to design the distribution system
Using formula for the design-demand
[tex]\text{design demand}=(Q_{max})daily\times\text{fire flow}[/tex]
[tex]\text{design demand}=1.64\times2444.4\times1000[/tex]
[tex]\text{design demand}=4008816\ gallon/m[/tex]
Hence, (a). The average daily demand of this subdivision is 2444.44 gallon/min.
(b). The design-demand used to design the distribution system is 2444.44 gallon/min.
