Amixing chamber operating at steady state at 100 kpa receives a saturated liquid-vapor mixture of water at a first inlet at 0.8 kg/s and a quality of 0.9, steam enters at a second inlet at 2 kg/s and 200°c, and liquid water enters at a third inlet at 1.2 kg/ h2o leaves through a single exit at 100 kpa. unfortunately, the insulation fell off part of the mixing chamber, so heat is lost from the chamber at a rate of 60 kw. a. determine the mass flow rate of the stream leaving. b. determine the temperature of the stream leaving. c. draw the four state points on a t-v diagram. d. draw the four state points on a p-v diagram. e. determine the temperature of the stream leaving if the insulation is fixed.

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.