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A home's temperature is maintained at 25°C by an AC system with a COP of 3.2...
PROBLEM 2. (20 POINTS) A space to be maintained at 25 C dB (dry bulb) temperature and 18°C wB (we...
PROBLEM 2. (20 POINTS) A space to be maintained at 25 C dB (dry bulb) temperature and 18°C wB (wet bulb) has a rate of sensible-heat gain of 25 kWand a rate of moisture gain of20 kg/hr. Moist air enters the space at a dry-bulb temperature of 15°C. Outdoor air at 35 C dB temperature and 25 C wB is supplied for ventilation purposes at a rate of 400 Us (litres per second) of standard air. After leaving the room,...
Question NO. 3 (25 points) A space to be maintained at 27°C dry-bulb temperature has a rate of sensible-heat gain of 13 kW and a rate of latent heat gain of 8.5 kW. The system used to condition t...
Question NO. 3 (25 points) A space to be maintained at 27°C dry-bulb temperature has a rate of sensible-heat gain of 13 kW and a rate of latent heat gain of 8.5 kW. The system used to condition the space to the required conditions. The mass flow rate of air supplied to the space is 1.1 kg/s. Outdoor air at 38 °C dry-bulb temperature and 17 ℃ dew-point temperature is introduced into the system at a rate of 0.28 kg/s....
Q.3 Outside air at 90°F, 1 atm, and 95% relative humidity with a flow rate of...
Q.3 Outside air at 90°F, 1 atm, and 95% relative humidity with a flow rate of 4000 cfm is blown over an evaporator of a refrigeration system and exits at 75°F and 60% relative humidity. The refrigeration system has operating with the COP of 2.5. Determine (a) the amount of cooling provided by the evaporator Btu/hr (b) the amount of water condensed in the evaporator, lbm/hr and (c) the power required by the compressor of the refrigerator in kW. 1...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 mº/min of room return air at 30°C, 50% relative humidity is first mixed with 40 mº/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. (Note that air...
- What is the physical interpretation of the wet-bulb temperature During winter time a room is...
- What is the physical interpretation of the wet-bulb temperature During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 min of room return air at 30°C. SON relative humidity is first mixed with 40 m/min of outdoor at 10°C. 20% relative humidity: The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. Note that air and...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 m/min of room return air at 30°C, 50% relative humidity is first mixed with 40 m/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. [Note that air...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 m/min of room return air at 30°C, 50% relative humidity is first mixed with 40 m/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. (Note that air...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 m/min of room return air at 30°C, 50% relative humidity is first mixed with 40 m/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. [Note that air...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 m3/min of room return air at 30°C, 50% relative humidity is first mixed with 40 m/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. [Note that air...
Question 1 (10 marks) As shown in Fig. Q1, a house is cooled by an air...
Question 1 (10 marks) As shown in Fig. Q1, a house is cooled by an air conditioning system to maintain the temperature inside the house to be 25 °C during the summer. When the ambient temperature outside is 45 °C, the rate at which heat is transferred to the house is estimated to be Qleak .u HP 30 kW 1.1 Calculate the coefficient of performance (COP) of this air conditioning system if it operates on a Carnot cycle? Fig. Q1...
PROBLEM 2. (20 POINTS) A space to be maintained at 25 C dB (dry bulb) temperature and 18°C wB (wet bulb) has a rate of sensible-heat gain of 25 kWand a rate of moisture gain of20 kg/hr. Moist air enters the space at a dry-bulb temperature of 15°C. Outdoor air at 35 C dB temperature and 25 C wB is supplied for ventilation purposes at a rate of 400 Us (litres per second) of standard air. After leaving the room,...
Question NO. 3 (25 points) A space to be maintained at 27°C dry-bulb temperature has a rate of sensible-heat gain of 13 kW and a rate of latent heat gain of 8.5 kW. The system used to condition the space to the required conditions. The mass flow rate of air supplied to the space is 1.1 kg/s. Outdoor air at 38 °C dry-bulb temperature and 17 ℃ dew-point temperature is introduced into the system at a rate of 0.28 kg/s....
Q.3 Outside air at 90°F, 1 atm, and 95% relative humidity with a flow rate of 4000 cfm is blown over an evaporator of a refrigeration system and exits at 75°F and 60% relative humidity. The refrigeration system has operating with the COP of 2.5. Determine (a) the amount of cooling provided by the evaporator Btu/hr (b) the amount of water condensed in the evaporator, lbm/hr and (c) the power required by the compressor of the refrigerator in kW. 1...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 mº/min of room return air at 30°C, 50% relative humidity is first mixed with 40 mº/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. (Note that air...
- What is the physical interpretation of the wet-bulb temperature During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 min of room return air at 30°C. SON relative humidity is first mixed with 40 m/min of outdoor at 10°C. 20% relative humidity: The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. Note that air and...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 m/min of room return air at 30°C, 50% relative humidity is first mixed with 40 m/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. [Note that air...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 m/min of room return air at 30°C, 50% relative humidity is first mixed with 40 m/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. (Note that air...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 m/min of room return air at 30°C, 50% relative humidity is first mixed with 40 m/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. [Note that air...
a) What is the physical interpretation of the wet-bulb temperature? b) During winter time a room is maintained at a steady temperature and humidity by an air-conditioning system shown. 200 m3/min of room return air at 30°C, 50% relative humidity is first mixed with 40 m/min of outdoor at 10°C, 20% relative humidity. The mixed air is then introduced to a heater where the temperature of the air is raised to 45°C and supplied to the room. [Note that air...
Question 1 (10 marks) As shown in Fig. Q1, a house is cooled by an air conditioning system to maintain the temperature inside the house to be 25 °C during the summer. When the ambient temperature outside is 45 °C, the rate at which heat is transferred to the house is estimated to be Qleak .u HP 30 kW 1.1 Calculate the coefficient of performance (COP) of this air conditioning system if it operates on a Carnot cycle? Fig. Q1...
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