Answer:
638.8kW
Explanation:
The flow rate of the steam m = 22kg/s
The Pressure of the steam at the inlet of the turbine P1 = 1.6MPa
The temperature of the steam at the inlet of the turbine T1 = 350*C
Steam quality at the exit of the turbine x2 = 1.0
The temperature of the steam at the exit of the turbine T2 = 30*C
Power produced = 12,350kW
Assuming the turbine is running on a steady state, hence we neglect the effect of kinetic and potential energy we get:
If you refer to the superheated steam table for the specific enthalpy at a pressure of 1.6MPa and temperature of 350*C, we get
h1 = 3,146kJ/kg
Refer to the steam table for saturated gas at temperature 30*C to get the specific enthalpy value h2 = 2,556.81kJ/kg
The heat that comes out from the turbine can be defined from the balance of energy in the system, and is represented as
Ein - Eout = change in system Energy = 0
Thus Ein = Eout
mh1 = mh2 + Wout + Qout
Qout = m(hi-h2) - Wout
Qout = 22 x (3146-255.6) - 12350
Qout = 638.8kW
If an object is moving with a constant velocity, then by definition it has zero acceleration. So there is no net force acting on the object. The total work done on the object is thus 0 (that's not to say that there isn't work done by individual forces on the object, but the sum is 0 ).
<span><span>3,730 W is equal to about 5 horsepower. (4.9982 hp)</span></span>
B
Bias is an inclination towards one way of thinking due to inherent factors in our environment, such as how one was brought up.
Explanation:
In science, biases, conscious or unconscious, tend to make experiments’ results to incline in particular way rather than being impartial. Peer- review of scientific journals by the scientific community is meant to be a quality assurance measure to detect such biases. The students should check reviews of the scientific community on the article and see if any biases have been pointed out. Probably the institution that the scientist works for is in competition with another institution that deals with gamma rays.
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