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(d) Figure Q3 shows an air-conditioner is used to maintain a house at 15 °C by...
A residential air conditioner is removing 850 kJ/min of heat from the house to koop the...
A residential air conditioner is removing 850 kJ/min of heat from the house to koop the house at 20 °C. If the COP of the nutrigerator is 2.08, how much heat is rejected to the ambient air outside the house? O A 20.07 kW OB. 14.16 KW O 0.29.46 KW OD.6.81 kW
An air conditioner is used to maintain a house at 400C when the temperature outside is...
An air conditioner is used to maintain a house at 400C when the temperature outside is 850C. The house gains heat through the walls and the windows at a rate of 2130kJ/kg/min, and heat generation rate within the house from people, lights and appliances amounts to 120kJ/min. Determine the minimum power required for the air conditioner and cost of its operation over a three month summer at a rate of $0.15Kw Hr.
An Air conditioner maintains a house temperature of 23C while outside temp is 50C. If gbe...
An Air conditioner maintains a house temperature of 23C while outside temp is 50C. If gbe refrigeration cycle removes 8kw from the house and compressor does 2 hp of work on the refrigerent. determine 1. the heat rejected to the outside environment in kw? 2. the actual coefficient of performance for A/C unit 3. the max possible cop
5, (25 points) A Carnot heat pump is used to maintain a house at 20 °C...
5, (25 points) A Carnot heat pump is used to maintain a house at 20 °C in winter and consumes 8 kW of power (electricity) when operating. On a day temperature outside the house is -3 °C, the house is estimated to lose heat at an average rate of 80,000 kJ/h. (Sa). (2p) Please identify the hot reservoir and the cool reservoir of this heat pump. (5b). (2p) Please draw of schematic diagram of this heat pump-house heating system with...
A heat pump is to be used to heat a house in winter and then reversed...
A heat pump is to be used to heat a house in winter and then
reversed to cool the house in summer. The interior space is to be
maintained at 20oC. Heat transfer through walls and roof is
estimated to be χ = 0.525 kJ/sec per degree difference in
temperature between inside and outside. (6a) (8p) In winter if the
outside temperature is 5oC, what is the minimum power required to
drive the heat pump? (6b) (12p) For the same...
A heat pump is used to heat a house and maintain it at 24°C. On a...
A heat pump is used to heat a house and maintain it at 24°C. On a winter day when the outdoor air temperature is -5°C (negative value), the house is estimated to lose heat at a rate of 80,000 kJ/h. Determine the minimum power required to operate this heat pump if heat is extracted from (a) the outdoor air at -4 oC and (b) the well water at 12C.
4) 15% Air psychometric chart). enters and exits an air conditioner with the properties shown below...
4) 15% Air psychometric chart). enters and exits an air conditioner with the properties shown below (as determined from the Cooling cols Air Condensate Property Estering Exiting | 2S Dry bulb temperature CC)-35 ℃ Wet bulb temperature ("C1-20℃ Eethalpy (h, kJ/kg dry air)$7.5 40.9 Absolute humidity (o, kg H-O/kg dry air) 0.0085 0 0062 0.882 Specific volume (m/kg)1 0.8850 The condensate leaves volume flow rate of the air returned to the workspace is 800 m3/min. Atmospheric pressure is 9 the...
Please show all equations needed in answer and please specify which thermodynamics table is used for...
Please show all
equations needed in answer and please specify which thermodynamics
table is used for what values taken from any tables
Waeer 2C 12 MMP 25 c Problem I: 12 MP An air conditioner with R-134a as the working fluid maintains a house at a constant temperature of 23°C during the summer. The minimum temperature in the air conditioner cycle is -8°C, and the maximum temperature in the air conditioner cycle is equivalent to the outside temperature. The house...
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...
QUESTION 1 [15 marks] Due: 5 August 2020 An air conditioner operating at steady state takes...
QUESTION 1 [15 marks] Due: 5 August 2020 An air conditioner operating at steady state takes in moist air at 28°C, 1 atm and 70% relative humidity. The moist air first passes over a cooling coil in the dehumidifier unit and some water vapor is condensed. The rate of heat transfer between the moist air and the cooling coil is 38.69 kW. Both saturated moist air and condensate streams exit the dehumidifier unit at the same temperature. The moist air...
A residential air conditioner is removing 850 kJ/min of heat from the house to koop the house at 20 °C. If the COP of the nutrigerator is 2.08, how much heat is rejected to the ambient air outside the house? O A 20.07 kW OB. 14.16 KW O 0.29.46 KW OD.6.81 kW
5, (25 points) A Carnot heat pump is used to maintain a house at 20 °C in winter and consumes 8 kW of power (electricity) when operating. On a day temperature outside the house is -3 °C, the house is estimated to lose heat at an average rate of 80,000 kJ/h. (Sa). (2p) Please identify the hot reservoir and the cool reservoir of this heat pump. (5b). (2p) Please draw of schematic diagram of this heat pump-house heating system with...
A heat pump is to be used to heat a house in winter and then
reversed to cool the house in summer. The interior space is to be
maintained at 20oC. Heat transfer through walls and roof is
estimated to be χ = 0.525 kJ/sec per degree difference in
temperature between inside and outside. (6a) (8p) In winter if the
outside temperature is 5oC, what is the minimum power required to
drive the heat pump? (6b) (12p) For the same...
4) 15% Air psychometric chart). enters and exits an air conditioner with the properties shown below (as determined from the Cooling cols Air Condensate Property Estering Exiting | 2S Dry bulb temperature CC)-35 ℃ Wet bulb temperature ("C1-20℃ Eethalpy (h, kJ/kg dry air)$7.5 40.9 Absolute humidity (o, kg H-O/kg dry air) 0.0085 0 0062 0.882 Specific volume (m/kg)1 0.8850 The condensate leaves volume flow rate of the air returned to the workspace is 800 m3/min. Atmospheric pressure is 9 the...
Please show all
equations needed in answer and please specify which thermodynamics
table is used for what values taken from any tables
Waeer 2C 12 MMP 25 c Problem I: 12 MP An air conditioner with R-134a as the working fluid maintains a house at a constant temperature of 23°C during the summer. The minimum temperature in the air conditioner cycle is -8°C, and the maximum temperature in the air conditioner cycle is equivalent to the outside temperature. The house...
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...
QUESTION 1 [15 marks] Due: 5 August 2020 An air conditioner operating at steady state takes in moist air at 28°C, 1 atm and 70% relative humidity. The moist air first passes over a cooling coil in the dehumidifier unit and some water vapor is condensed. The rate of heat transfer between the moist air and the cooling coil is 38.69 kW. Both saturated moist air and condensate streams exit the dehumidifier unit at the same temperature. The moist air...
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