An air-conditioning system takes in outdoor air at 10 celsius and 30% relative humidity at a steady rate of 45 m 3 /min, and conditions it to 25 celsus and 60% relative humidity. the outdoor air is first heated to 22 celsius in the heating section and then humidified by the injection of hot steam in the humidifying section. assume that the entire process takes place at a pressure of 100 kpa.

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit. explain why the pneumatic piston stumbles when it hits an obstacle.

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?