Answer:
Check the explanation
Explanation:
First of all the initial or primary and final masses can be calculated with the use of the ideal gas relations.
The net It transfer is determined from the energy balance. The initial and final internal energies and the enthalpy of the air in the supply line are obtained from A-I] for the given temperatures.
kindly check the attached image below to see working.
Answer:
(a) Indicating power(IP)=6000 KW
(b) =0.833
(c) Consumption of air per hour =46000 kg/hr
(d) =0.1865
Explanation:
Break power(BP) =5000 KW
Friction power(FP)=1000 KW
Consumption of fuel per hour=2300 kg/hr
CV=42000 KJ/kg
We know that
Indicating power(IP)=Break power(BP)+Friction power(FP)
⇒IP=5000+1000 KW
IP=6000 KW
(a)
Indicating power(IP)=6000 KW
(b)
Mechanical efficiency
=0.833
(c)
Air fuel ratio=
consumption of air per hour=202300 kg/hr
So consumption of air per hour =46000 kg/hr
(d)
Break thermal efficiency
=0.638 kg/s
=0.1865
Answer:
Time taken by the diameter droplet is 60 ns
Solution:
As per the question:
Diameter of the droplet, d = 1 mm = 0.001 m
Radius of the droplet, R = 0.0005 m
Time taken for complete evaporation, t = 1 min = 60 s
Diameter of the smaller droplet, d' =
Diameter of the smaller droplet, R' =
Now,
Volume of the droplet, V =
Volume of the smaller droplet, V' =
Volume of the droplet ∝ Time taken for complete evaporation
Thus
where
t' = taken taken by smaller droplet
t' =