Answer:
The heater load =35 KJ/kg
Explanation:
Given that
At initial condition
Temperature= 15°C
RH=80%
At final condition
Temperature= 50°C
We know that in sensible heating process humidity ratio remain constant.
Now from chart
At temperature= 15°C and RH=80%
At temperature= 50°C
The heater load = 73 - 38 KJ/kg
The heater load =35 KJ/kg
Answer:
final pressure = 0.7 MPa
quality = 20 degree super heat.
Explanation:
Given data:
water temperature 120 degree celcius
quality
we know that from saturated water temperature table . for T =120 DEGREE
we know that
= 0.001060 + 0.33(0.89133- 0.001060)
= 0.29485 m^3/kg
frinal temperature of water is
= 120 + 65 = 185 Degree
from saturated water temp. table
for T = 185 degree, VG = 0.17390 m^3/kg
from super heated table by interpolation
final pressure = 0.7 MPa
quality = 20 degree super heat.
Answer:
1. Oil
2. Grease
3. Penetrating Lubricants
4. Dry Lubricants
Answer:
mV
Explanation:
The voltage across a capacitor at a time t, is given by:
----------------(i)
Where;
v(t) = voltage at time t
= initial time
C = capacitance of the capacitor
i(t) = current through the capacitor at time t
v(t₀) = voltage at initial time.
From the question:
C = 2μF = 2 x 10⁻⁶F
i(t) = 3 mA
t₀ = 0
v(t₀ = 0) = 0
Substitute these values into equation (i) as follows;
[Solve the integral]
Therefore, the voltage across the capacitor is mV