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ch4aika [34]
3 years ago
7

The TSS concentration in the primary treated effluent is 150 mg/L, and TSS removal is 63 percent. The sludge has an average soli

ds concentration of 6 percent and specific gravity of 1.045. What is the capacity of the sludge pump in m3/min per basin if the pump is used on a 15-min pumping cycle per h

Engineering
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

The capacity of the sludge pump is 0.217 m3/min

Explanation:

Solution is attached below

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An electrical current of 700 A flows through a stainlesssteel cable having a diameter of 5 mm and an electricalresistance of 610
KatRina [158]

Answer:

778.4°C

Explanation:

I = 700

R = 6x10⁻⁴

we first calculate the rate of heat that is being transferred by the current

q = I²R

q = 700²(6x10⁻⁴)

= 490000x0.0006

= 294 W/M

we calculate the surface temperature

Ts = T∞ + \frac{q}{h\pi Di}

Ts = 30+\frac{294}{25*\frac{22}{7}*\frac{5}{1000}  }

Ts=30+\frac{294}{0.3928} \\

Ts =30+748.4\\Ts = 778.4

The surface temperature is therefore 778.4°C if the cable is bare

6 0
3 years ago
Steam enters a heavily insulated throttling valve at 11 MPa, 600°C and exits at 5.5 MPa. Determine the final temperature of the
7nadin3 [17]

Answer: the final temperature of the steam 581.5 °C

Explanation:

Given that;

P₁ = 11 MPa

T₁ = 600°C

exit at; P₂= 5.5 MPa

Now from superheated steam table( p=11 MPa, T=600°C)

h₁ = 3615 kJ/kg  

h₁ = h₂ ( by throttling process and adiabatic isentholpic )

from saturated steam table at; ( h= 3615 kJ/kg, P= 5.5 MPa )

Temperature = 581.5 °C

Therefore the final temperature of the steam 581.5 °C

8 0
3 years ago
To solve the problem, make assumptions for missing data and justify. Given:
finlep [7]

Answer:

5,4,1, this is a explication

6 0
3 years ago
Which of the following statements are true of computer hardware engineers?
9966 [12]

Answer:

you never mentioned the options

3 0
4 years ago
A mass of 5 kg of saturated water vapor at 100 kPa is heated at constant pressure until the temperature reaches 200°C.
Alex73 [517]

Answer: you can watch a video on how to solve this question on you tube

6 0
4 years ago
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