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Problem 14.7: An air-conditioning system operates at a total pressure of 95kPa and consists of a...
An air conditioning system operates at a total pressure of 95 kPa and consists of a...
An air conditioning system operates at a total pressure of 95 kPa and consists of a heating section and a humidifier that supplies wet steam (saturated water vapor) at 100°C. Air enters the heating section at 10°C and 70 percent relative humidity at a rate of 35 m/min, and it leaves the humidifying section at 20°C and 60 percent relative humidity. Determine (a) the temperature and relative humidity of air when it leaves the heating section, (b) the rate of...
Please DO NOT use the psychrometric chart to solve the following: An air-conditioning system operates at...
Please DO NOT use the psychrometric chart to solve the following: An air-conditioning system operates at a total pressure of 95kPa and consists of a heating section and a humidifier that supplies wet steam (saturated water vapor) at 100°C. Air enters the heating section at 10°C and 70 percent relative humidity at a rate of 35 m3/min, and it leaves the humidifying section at 20°C and 60 percent relative humidity. Determine (a) the temperature and relative humidity of air when...
Anair-conditioning system operates at a total pressure of 1 atm and consists of a heating section...
Anair-conditioning system operates at a total pressure of 1 atm and consists of a heating section and a humidifier that supplies wet steam (saturated water vapor) at 100° C. Air enters the heating section at 10°C and 70 percent relative humidity at a rate of 35 mP/min, and it leaves the humidifying section at 20°C and 60 percent relative humidity. Determine (a) the temperature and relative humidity of air when it leaves the heating section, (b) the rate of heat...
Supplies An air-conditioning process consists of a heating section followed by a humidifier that ...
supplies An air-conditioning process consists of a heating section followed by a humidifier that saturated steam at 100°C. Air enters the heater at 10°C and 70% RII at a rate of 35 m3/min. The air leaves the humidifier at 20°C and 60% RH. The system operates at a barometric pressure of 1 atm. Determine: a) the temperature and RH% of the air leaving the heater, b) the rate of heat transfer in the heater, and e) the rate of water...
Problem 4- A HVAC system is operating in heating mode with a steam humidification system, as...
Problem 4- A HVAC system is operating in heating mode with a steam humidification system, as shown below. Air enters the system at 10°C and 70% relative humidity at a rate of 35m3/min. After heating and subsequent humidification by saturated water vapor at 100°C, the air leaves the system at 20°C and 60% relative humidity. Find (1) the temperature and relative humidity of the air when it leaves the heating section, (2) the heat transferred to the air in the...
3. The outdoor air enters an AC system at 10°C and 75% relative humidity at a...
3. The outdoor air enters an AC system at 10°C and 75% relative humidity at a steady rate of 26 m3/ min, and it leaves at 25°C and 45% relative humidity. The outdoor air is first heated to 21°C in the heating section and then humidified by injection of hot steam in the humidifying section. Assuming the entire process takes place at 1 atm, determine (a) the rate of heat supply in the heating section, and (b) the mass flow...
1. Air at latm, 15C and 70% relative humidity and volumetric flow rate of 10m /min...
1. Air at latm, 15C and 70% relative humidity and volumetric flow rate of 10m /min is first heated to 19C in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 24C and 65% relative humidity. Determine: a) The mass flow rate of steam added to the air. b) The heat flow rate transferred to the air in the heating section Heating coils 100.000 1 atm T1 = 15°C T3 = 24°C...
a) Define relative humidity (2 marks) b) Describe the relation between relative humidity, the capacity of...
a) Define relative humidity (2 marks) b) Describe the relation between relative humidity, the capacity of air to hold moisture a ambient temperature. (2 marks) c) Moist air at 22°C and a wet bulb temperature of 9°C enters a steam spray humidifier. The mass flow of the dry air is 90 kg/min. Saturated water vapor at 110 °C is injected into the mixture at a rate of 52 kg/hr. There is no heat transfer with the surroundings, and the pressure...
please solve it quickly ignore p=75 Problem 3 Part a P=57 Moist air enters the cooler...
please solve it quickly
ignore p=75
Problem 3 Part a P=57 Moist air enters the cooler of an air conditioning unit at 25 °C and a relative humidity of 70%. The cooled and dehumidified air leaves the cooler saturated at 18 °C. The temperature of condensed water is 18 °C. The pressure is constant at 101.325 kPa. The mass flow rate of the dry air is mda=67 kg/s. Use the psychometric chart to determine a) The humidity ratio at the...
2. An air conditioning system is to take in air at latm 33C, 70% relative humidity...
2. An air conditioning system is to take in air at latm 33C, 70% relative humidity and flow rate of 50m3/min and deliver it 23C and 60% relative humidity. The air first flows over the cooling coils, where it is cooled and dehumidified, and then over the resistance heating wires, where it is heated to the desired temperature. Assuming that the condensate is removed from the cooling section at 10C, determine: a) The temperature of the air before it enters...
An air conditioning system operates at a total pressure of 95 kPa and consists of a heating section and a humidifier that supplies wet steam (saturated water vapor) at 100°C. Air enters the heating section at 10°C and 70 percent relative humidity at a rate of 35 m/min, and it leaves the humidifying section at 20°C and 60 percent relative humidity. Determine (a) the temperature and relative humidity of air when it leaves the heating section, (b) the rate of...
Anair-conditioning system operates at a total pressure of 1 atm and consists of a heating section and a humidifier that supplies wet steam (saturated water vapor) at 100° C. Air enters the heating section at 10°C and 70 percent relative humidity at a rate of 35 mP/min, and it leaves the humidifying section at 20°C and 60 percent relative humidity. Determine (a) the temperature and relative humidity of air when it leaves the heating section, (b) the rate of heat...
supplies An air-conditioning process consists of a heating section followed by a humidifier that saturated steam at 100°C. Air enters the heater at 10°C and 70% RII at a rate of 35 m3/min. The air leaves the humidifier at 20°C and 60% RH. The system operates at a barometric pressure of 1 atm. Determine: a) the temperature and RH% of the air leaving the heater, b) the rate of heat transfer in the heater, and e) the rate of water...
Problem 4- A HVAC system is operating in heating mode with a steam humidification system, as shown below. Air enters the system at 10°C and 70% relative humidity at a rate of 35m3/min. After heating and subsequent humidification by saturated water vapor at 100°C, the air leaves the system at 20°C and 60% relative humidity. Find (1) the temperature and relative humidity of the air when it leaves the heating section, (2) the heat transferred to the air in the...
3. The outdoor air enters an AC system at 10°C and 75% relative humidity at a steady rate of 26 m3/ min, and it leaves at 25°C and 45% relative humidity. The outdoor air is first heated to 21°C in the heating section and then humidified by injection of hot steam in the humidifying section. Assuming the entire process takes place at 1 atm, determine (a) the rate of heat supply in the heating section, and (b) the mass flow...
1. Air at latm, 15C and 70% relative humidity and volumetric flow rate of 10m /min is first heated to 19C in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 24C and 65% relative humidity. Determine: a) The mass flow rate of steam added to the air. b) The heat flow rate transferred to the air in the heating section Heating coils 100.000 1 atm T1 = 15°C T3 = 24°C...
a) Define relative humidity (2 marks) b) Describe the relation between relative humidity, the capacity of air to hold moisture a ambient temperature. (2 marks) c) Moist air at 22°C and a wet bulb temperature of 9°C enters a steam spray humidifier. The mass flow of the dry air is 90 kg/min. Saturated water vapor at 110 °C is injected into the mixture at a rate of 52 kg/hr. There is no heat transfer with the surroundings, and the pressure...
please solve it quickly
ignore p=75
Problem 3 Part a P=57 Moist air enters the cooler of an air conditioning unit at 25 °C and a relative humidity of 70%. The cooled and dehumidified air leaves the cooler saturated at 18 °C. The temperature of condensed water is 18 °C. The pressure is constant at 101.325 kPa. The mass flow rate of the dry air is mda=67 kg/s. Use the psychometric chart to determine a) The humidity ratio at the...
2. An air conditioning system is to take in air at latm 33C, 70% relative humidity and flow rate of 50m3/min and deliver it 23C and 60% relative humidity. The air first flows over the cooling coils, where it is cooled and dehumidified, and then over the resistance heating wires, where it is heated to the desired temperature. Assuming that the condensate is removed from the cooling section at 10C, determine: a) The temperature of the air before it enters...
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