Question

The fluid flows through an open system with flow rate of 5 kg/s. It enters the

system at a pressure of 600 kN/m2

, velocity 200 m/s, internal energy 2100 kJ/kg

and specific volume 0.45 m3

/kg. The fluid leaves the system at a pressure of

150 kN/m2

, velocity of 145 m/s, internal energy 1600 kJ/kg and specific volume

1.5 m3

/kg. The heat loss through the system is 40 x 103

J/kg to the surroundings.

By neglecting potential energy change, calculate power of the system.​

Answer 1

Gravity is a physical connection between space and matter that is precisely described by Einstein's 1915 geometric theory of gravity known as general relativity. Put simply, that theory says, "Space acts on matter, telling it how to move. In turn, matter reacts back on space, telling it how to curve."