Asteam turbine operates with 1.6 mpa and 350°c steam at its inlet and saturated vapor at 30°c at its exit. the mass flow rate of the steam is 22.4 kg/s, and the turbine produces 12,350 kw of power. determine the rate at which heat is lost through the casing of this turbine. the enthalpies are h1 = 3146 kj/kg and h2 = 2555.6 kj/kg

Explanation:

given,

steam turbine operates at P₁ = 1.6 MPa

steam inlet temperature T₁= 350°C

saturation vapor T₂= 30°C

the enthalpies (h₁) = 3146 kJ/kg

h₂ = 2555.6 kJ/kg

assuming no change in internal energy

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force