Section: Thermodynamics | Type: NAT | Marks: 2
In an air-conditioning system, air enters at 20 ℃ and 30% relative humidity at a steady rate of 30 m3/min in a humidifier and it is conditioned to 25 ℃ and 60% relative humidity. Assuming entire process takes place at pressure of 100 kPa, the mass flow rate of the steam added to air in the humidifier is ____________ kg/min (rounded off to three decimal places). Use the following property data: At 20 ℃ and 25 ℃, saturation pressures of water are 2.3392 kPa and 3.1698 kPa, respectively. For air, R = 0.287 kJ/kg-K
Answer: 0.262 to 0.290