An office is occupied by 30 persons who each produce 200 Btu/h (58W) of sensible heat and 0.25 lb/h (0.1kg/h) of moisture. The office is to be maintained at 72F (22C) and 50 percent relative humidity. Conditioned air is supplied at 60F (15C) to meet the sensible and latent loads. What is the sensible heat ratio (SHR) to meet the loads

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1

The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?