Refrigerant 134a flows at steady state through a horizontal tube having an inside diameter of 0.05m. the refrigerant enters the tube with a quality of 0.1, temperature of 36? , and velocity of 10 m/s. the refrigerant exits the tube at 9 bar as a saturated liquid. determine (a) the mass flow rate of the refrigerant, in kg/s. (b) the velocity of refrigerant at the exit, in m/s (c) the rate of heat transfer, in kw, and its associated direction with respect to the refrigerant. the correct answer is: a)6.54 b)2.86m/s c)113.5kw (show work )

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.