Answer:
Q=260.96W/m
Explanation:
you should raise the heat transfer equation between the inner part of the tube and the outer part taking into account the convection and conduction resistances
as they are asking us for the heat per unit length, then the conduction and convection resistances are like this
Rh=1/(hDpi)
Rc=ln(De/Di)/2piK
I attached the complete procedure
Answer:
Failure Rate
Explanation:
Failure rate is the frequency with which an engineered system or component fails, expressed for example in failures per hour.
It is often denoted by the Greek letter λ (lambda) and is important in reliability theory.
Failure rate is usually time dependent, and an intuitive corollary is that the rate changes over time versus the expected life cycle of a system
Answer:
i have no clue brother i just came here for points
Explanation:
Answer:
a) 6.4 mg/l
b) 5.6 mg/l
Explanation:
Given data:
effluent Discharge Q_w = 1.0 m^3.s
Ultimate BOD L_w = 40 mg/l
Discharge of stream Q_r = 10 m^3.s
Stream ultimate BOD L_r = 3 mg/l
a) Ultimate BOD of mixture
b) utlimate BOD at 10,000 m downstream
putting
t = 0.578 days
we know