(A) A piston-cylinder device initially contains steam at 3.0 MPa, superheated by 16.1°C with a volume of 0.4m ^ 3 . At its initial condition (State 1), the piston (weighing 12445 kg with a diameter of 0.3 m), is 30 cm above the stops at an equilibrium condition. The arrangement is open to an outside pressure of 90 kPa. Determine , () The initial temperature of steam [1] Mass of the steam[1] () Force balance diagram at this condition [1] (iv) Total enthalpy and Total internal energy (kJ) [2] (Bthe moves

What is the main objective of using reheat rankine cycle?

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.

Apreheater involves the use of condensing steam at 100°c on the inside of a bank of tubes to heat air that enters at 1 atm and 25°c. the air moves at 5 m/s in cross flow over the tubes. each tube is 1 m long and has an outside diameter of 10 mm. what is the minimum value of nl needed to achieve an outlet temperature of t 75 c? what is the corresponding pressure drop across the tube bank?