Question

In: Physics

Atmospheric air, at constant conditions, 102 kPa pressure and 30 ° C to a air conditioning...

Atmospheric air, at constant conditions, 102 kPa pressure and 30 ° C to a air conditioning system
enters at 60% relative humidity at temperature. The volumetric flow of atmospheric air is 100 L / s. Air,
It is separated from the air conditioning system at a pressure of 95 kPa and a temperature of 15 ° C at 100% relative humidity.
In this process, the temperature of the condensing water is 15 ° C. This air conditioning
Calculate the heat thrown in the process in kW.

Solutions

Expert Solution


Related Solutions

An adiabatic air compressor with inlet conditions of 100 kPa, 27 C and an exit pressure...
An adiabatic air compressor with inlet conditions of 100 kPa, 27 C and an exit pressure of 500 kPa has an inlet volume flow rate of 5 m3/s and operates in steady flow. Calculate the minimum power required to drive the compressor.
A mass of 0.07 kg of air at a temperature of 30°C and pressure 100 kPa...
A mass of 0.07 kg of air at a temperature of 30°C and pressure 100 kPa is compressed to a pressure of 600 kPa, according to the law: (i.e. Polytropic process, n=1.3). Determine: i.The final volume ii.The final temperature iii.The work transfer iv.The change in internal energy v.The heat transfer
Air is at 100 kPa and 150°C, and undergoes a constant pressure process. The final temperature...
Air is at 100 kPa and 150°C, and undergoes a constant pressure process. The final temperature of the air is 1000°C. a) Compute the specific volume ratio. b) Compute the boundary work (kJ/kg) c) Compute the change in specific internal energy by: 1. Using the tables. 2. Integrating the polynomial (cp) 3. Assuming constant specific heat. d) Repeat c for specific enthalpy e) Compute the heat
In a supermarket, air at atmospheric pressure and 25 °C is supplied to an air handling...
In a supermarket, air at atmospheric pressure and 25 °C is supplied to an air handling unit through a rectangular duct with a cross section of 0.5 m x 0.1 m. The air handling unit will distribute 2/3 of the air to the large shopping area of the supermarket at 25 °C, and it will cool the remaining air to -5 °C and distribute it to a walk-in refrigerator. To avoid frictional pressure losses, the average air velocity in the...
Humid air at 155 kPa, 40°C, and 70 percent relative humidity is cooled at constant pressure...
Humid air at 155 kPa, 40°C, and 70 percent relative humidity is cooled at constant pressure in a pipe to its dew-point temperature. Calculate the heat transfer, in kJ/kg dry air, required for this process. Use data from the tables. The heat transfer is  kJ/kg dry air.
Air enters a constant diameter pipe at a pressure of 200 kPa. At the exit of...
Air enters a constant diameter pipe at a pressure of 200 kPa. At the exit of the pipe the pressure is 120 kPa, the Mach number is 0.75, and the stagnation temperature is 330°C. Determine the inlet Mach number and the heat transfer per unit mass of air.
In an air conditioning system, the inside and outside conditions of air are 25 °C DBT...
In an air conditioning system, the inside and outside conditions of air are 25 °C DBT and 50% RH, and 40 °C DBT and 27 °C WBT, respectively. The room sensible heat ratio is 0.8, while 50% of the room air is rejected to atmosphere and replaced with an equal quantity of fresh air before entering the air conditioning apparatus. If the fresh air added is 100 m3 /min and the air density is 1.2 kg/ m3 with zero air...
Air at a pressure of 350 kPa, a temperature of 80°C, and a velocity of 180...
Air at a pressure of 350 kPa, a temperature of 80°C, and a velocity of 180 m/s enters a convergent–divergent nozzle. A normal shock occurs in the nozzle at a location where the Mach number is 2. If the air mass flow rate through the nozzle is 0.7 kg/s, and if the pressure on the nozzle exit plane is 260 kPa, find the nozzle throat area, the nozzle exit area, the temperatures upstream and downstream of the shock wave, and...
a tire is filled with air at 14 ∘c to a gauge pressure of 230 kpa...
a tire is filled with air at 14 ∘c to a gauge pressure of 230 kpa If the tire reaches a temperature of 35 ∘C∘C, what fraction of the original air must be removed if the original pressure of 230 kPakPa is to be maintained?
The dry- and wet-bulb temperatures of atmospheric air at 98 kPa are 28 and 14°C, respectively....
The dry- and wet-bulb temperatures of atmospheric air at 98 kPa are 28 and 14°C, respectively. Determine the following values.   1. The specific humidity in  kg H2O/kg dry air 2. The relative humidity in % 3. The enthalpy of air in  kJ/kg dry air
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT