An air-conditioning system operates at a total pressure of 1 atm and consists of a heating section and an evaporative cooler. air enters the heating section at 15°c and 55 percent relative humidity at a rate of 30 m5/min, and it leaves the evaporative cooler at 25°c and 45 percent relatively humidity. using appropriate software, study the effect of total pressure in the range 94 to 100 kpa and plot the results as functions of total pressure.

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Burgers vector is generally parallel to the dislocation line. a)-true b)-false