What is the humidity in kg h20/kg dry air tables at 305 C?
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What is the humidity in kg h20/kg dry air tables at 305 C?
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- Using the psychrometric chart, calculate the error in considering the wet bulb line to the line of constant enthalpy at the point of 35C dry bulb temperature and 50% relative humidity. Answer in detailed solution and mark the psychrometric chartAir from outside enter a car cabin with 3000 cfm at 85°F (db), 65% relative humidity, it required to cool until reached to a condition of saturation at 60°F. Assume the process accrue at sea level with PB = 29.92 in. Hg. by using the psychrometric chart calculate: 1) The heat transfer required for cooling process. 2) The rate of change in air specific humidity to the change in air enthalpy 3) Draw the process in psychrometric chart.If the relative humidity at a sea-level site is 50% for a dry-bulb temperature of 80°F (26.5°C), calcu- late the moist-air enthalpy. () find the
- Air at 35 C and 25% relative humidity is cooled (reduce in temperature) and humidified (added moisture) by means of an air washer until the relative humidity becomes 85%. How much moisture was added per kg of dry air. What was the air washer efficiency and the dew point temperature of the leaving air?Air in a room is at 35°C and 60% relative humidity saturation pressure of water at 35°C is 5.63 kPa. The humidity ratio of the air (in gram/kg of dry (RH). The pressure in the room is 0.1 MPa. The (RH), The pressure in the room is 0.1 MPa TheCooling water leaves at 35ºC and at 100 kg/s from the condenser of a thermal power station and enters a cooling tower. In this tower, the water is cooled to 22ºC with air entering at 1 atm, 20ºC and 60% relative humidity, leaving saturated at 30ºC. Determine: a) The volumetric flow rate of air entering the tower. b) The mass flow rate of the make-up water.
- Air (mass of dry air: 3 kg) with a relative humidity of 50% at 25 °C is supplied isobaric 30 kJ. What is the relative humidity after that?2,000 m3 /h of return air at 25 °C and 40% relative humidity are mixed with 500 m3 /hof outside air at 3 7 °C and 60% relative humidity before entering a cooling coil. Themixed air is then cooled sensibly to 1 7 °C.Sketch the process on the psychrometric chart and find the followings:a- Humidity ratio of mixed air before entering the cooling coil.b- Enthalpy of mixed air before entering the cooling coil.c- Relative humidity and d~w point temperature of the supply air.d- Coil cooling capacity.Use the tables of moist-air properties to find the enthalpy and specific volume for air at 125°F (51°C) if the humidity ratio is 0.040. (1) yois-
- 5. Dry winter atmospheric air at latm, 8°C and 50% bumidity enter an HVAC system at a rate of 10m/hr, where it is isobarically conditioned to 21°C, 50% humidity. A water line supplies saturated water vapour. Determine heating or cooling rate required to accomplish this process. Also determine the rate wat which water must be supplied in the system in KW. Take heat of vaporization of water to be 2539.9kJ/kg. Note IKJ/S = 1KWPls. Answer..thank you! 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 15OC and 55 percent relative humidity at a rate of 30 m3 /min, and it leaves the evaporative cooler at 25OC and 45 percent relatively humidity. Determine the TOR.A mixture consısting of air and water at 16°C and 0.72 relative humidity at a pressure of 101.3 kPa ıs heated at constant pressure to a temperature 35°C. Fill in the blanks given in Table. (Please do not use Figure A-31). (please use Çengel and Boles Thermodynamics An Engineering Approach.)