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 by-passing, determine: a) Room sensible and latent load, b)
Sensible and latent heat due to the fresh air, c) Apparatus due point, d) Humidity ratio and dry
bulb temperature of the air entering to the air conditioning apparatus. Ans. a) 53.96 kW,
14.04 kW; b) 30.67 kW, 39.73 kW; c) 11.8 °C; d) 0.0138 kg/ kg dry air, 32.5 °C

Expert Solution

Ally Wells answered 2 years ago

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...

If the temperature inside a room is 25°C and the temperature outside is ?10°C: a. What...

If the temperature inside a room is 25°C and the temperature outside is ?10°C: a. What is the maximum relative humidity that can be accommodated inside the room before the window fogs over? (Assume the inside of the window is not insulated from the outside temperature). b. If it is a double-pane window such that the inside of the window is perfectly insulated from the outside, what will the maximum relative humidity be?

Moist air enters an air-conditioning system as shown in the figure below at T1 = 28°C,...

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Q2/ In one of applications, wanted to condition laboratory at inside design condition DBT-24 °C and...

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Air (cp = 1.0 kJ/kgK) enters an air conditioning system at 40C with a mass flow...

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A thermometer is taken from an inside room to the outside, where the air temperature is...

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The flow rate of warm air into the air conditioning is 5,000 cfm. An air conditioning...

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Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C...

Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a low velocity and exits at 1 MPa and 347°C with a velocity of 90 m/s. The compressor is cooled at a rate of 1500 kJ/min, and the power input to the compressor is 235 kW. Determine the mass flow rate of air through the compressor. The inlet and exit enthalpies of air are 298.2 kJ/kg and 628.07 kJ/kg. The mass flow rate...

An air conditioning system is to take outdoor air at 30 oC and 70% relative humidity...

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In an air-conditioning system, dry air flows over tubes carrying refrigerant R134a. The air is cooled...

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