* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project
HOMEWORK SET #3 ME 252 - Thermal-Fluid Systems Fall Semester 2004 Due Tuesday, Nov 9 1. Determine the specific humidity, relative humidity, enthalpy, dew point temperature, and specific volume of moist air at 1 atm if the dry bulb and wet bulb temperatures are 28C and 25C, respectively. Use the following methods for each quantity: a. “Exact” equations, b. Psychrometric chart – show results on a copy of the chart, c. Interactive Thermodynamics (IT) – include print-out of equations and results. Moran & Shapiro text: 2. 12.76 3. 12.79 4. 12.86 Cengel & Boles text: 2. 13-73 3. 13-77 4. 13-93 5. Cooling water from the condenser of a power plant enters a forced-draft cooling tower at 40C at a rate of 90 kg/s. The water is cooled to 25C in the cooling tower by air that enters the tower at 1 atm, 23C, and 60% relative humidity and leaves saturated at 32C. Neglecting the power input to the fan, determine the (a) volume flow rate of air into the cooling tower, (b) mass flow rate of the required make-up water, and (c) the tower effectiveness.