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QS. An air-conditioner with a power input of 1.5 kW is working as a refrigerator (B-3) or as a heat pump (B' 4). It...
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
The heat pump illustrated beside uses 1.5 kW mechanical power (that's is 1500 J/s) and extracts...
The heat pump illustrated beside uses 1.5 kW mechanical power
(that's is 1500 J/s) and extracts 1.2 million calories per hour
from the outside air.
• A) How much heat is pumped into the house every day?
• B) If this heat pump is made such that it is ideal and
reversible, and you decide to heat your house with a gas furnace
and use the heat pump as an heat engine to produce mechanical work,
then what would be...
Problem 3 A home in a Midwestern city is being heated with a heat pump in...
Problem 3 A home in a Midwestern city is being heated with a heat pump in a winter day where the outside temperature is 5 C. Due to poor insulation, the home loses 800 KW of heat to the outside surroundings. An space heater inside the room generates 150 KW and another 120 KW of heat is generated by all the appliances and people in the room. The home is desired to be maintained at 25°C The heat pump consumes...
The given answer is (d) (i) 15.18 kW (ii) 3.08 However, I don't know how can...
The given answer is (d) (i) 15.18 kW (ii)
3.08
However, I don't know how can I solve this question.
Could anyone please help me?
Thank you
d) A freezer maintains a temperature of -18°C inside the cabinet, while the room temperature is at 24°C. If the electrical power consumed by the refrigeration unit is 2.5 kW determine: (i) The maximum possible rate of heat removal from the cabinet at this power input. (ii) The COP of the refrigeration unit...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating at a rate of 15 kW to maintain a building at 20 °C year-round. During the heating mode in the winter, the outside temperature is 5 °C. It is also used for cooling in the summer when outside temperature is 34 °C. Saturated vapor at 2.4 bar leaves the evaporator and superheated vapor at 8 bar leaves the compressor. There is no significant heat...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating at a rate of 15 kW to maintain a building at 20 °C year-round. During the heating mode in the winter, the outside temperature is 5 °C. It is also used for cooling in the summer when outside temperature is 34 °C. Saturated vapor at 2.4 bar leaves the evaporator and superheated vapor at 8 bar leaves the compressor. There is no significant heat...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating at a rate of 15 kW to maintain a building at 20 °C year-round. During the heating mode in the winter, the outside temperature is 5 °C. It is also used for cooling in the summer when outside temperature is 34°C. Saturated vapor at 2.4 bar leaves the evaporator and superheated vapor at 8 bar leaves the compressor. There is no significant heat transfer...
Anyone can help me with this question? 2 - Heat pump .The heat pump illustrated beside...
Anyone can help me with this question?
2 - Heat pump .The heat pump illustrated beside uses 1.5 kw mechanical power (that's is 1500 J/s) and extracts 1.2 million calories per hour from the outside air . A) How much heat is pumped into the house every day? .B) If this heat pump is made such that it is ideal and reversible, and you decide to heat your house with a gas furnace and use the heat pump as an...
earning Goal: To understand that a heat engine run backward is a heat pump that can be used as a refrigerator....
earning Goal: To understand that a heat engine run backward is a heat pump that can be used as a refrigerator. By now you should be familiar with heat engines--devices, theoretical or actual, designed to convert heat into work. You should understand the following: Heat engines must be cyclical; that is, they must return to their original state some time after having absorbed some heat and done some work). Heat engines cannot convert heat into work without generating some waste...
8. A ground source heat pump requires 7.7 kW of power to provide 9 tons of...
8. A ground source heat pump requires 7.7 kW of power to provide 9 tons of heat to a commercial hot water heating system. The coefficient of performance (COP) of this system is A. 4.1 B. 18 C. 2.9 D. 1.2 E. 3.7 Calculations: n yield much more useful energy from hydrogen fuel than combustion engines because A. they have fewer moving parts. B. they are not limited by Carnot's efficiency law. C. they operate at lower temperatures D. they...
The heat pump illustrated beside uses 1.5 kW mechanical power
(that's is 1500 J/s) and extracts 1.2 million calories per hour
from the outside air.
• A) How much heat is pumped into the house every day?
• B) If this heat pump is made such that it is ideal and
reversible, and you decide to heat your house with a gas furnace
and use the heat pump as an heat engine to produce mechanical work,
then what would be...
Problem 3 A home in a Midwestern city is being heated with a heat pump in a winter day where the outside temperature is 5 C. Due to poor insulation, the home loses 800 KW of heat to the outside surroundings. An space heater inside the room generates 150 KW and another 120 KW of heat is generated by all the appliances and people in the room. The home is desired to be maintained at 25°C The heat pump consumes...
The given answer is (d) (i) 15.18 kW (ii)
3.08
However, I don't know how can I solve this question.
Could anyone please help me?
Thank you
d) A freezer maintains a temperature of -18°C inside the cabinet, while the room temperature is at 24°C. If the electrical power consumed by the refrigeration unit is 2.5 kW determine: (i) The maximum possible rate of heat removal from the cabinet at this power input. (ii) The COP of the refrigeration unit...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating at a rate of 15 kW to maintain a building at 20 °C year-round. During the heating mode in the winter, the outside temperature is 5 °C. It is also used for cooling in the summer when outside temperature is 34 °C. Saturated vapor at 2.4 bar leaves the evaporator and superheated vapor at 8 bar leaves the compressor. There is no significant heat...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating at a rate of 15 kW to maintain a building at 20 °C year-round. During the heating mode in the winter, the outside temperature is 5 °C. It is also used for cooling in the summer when outside temperature is 34 °C. Saturated vapor at 2.4 bar leaves the evaporator and superheated vapor at 8 bar leaves the compressor. There is no significant heat...
In a vapor-compression refrigeration heat pump cycle with Refrigerant 134a as the working fluid provides heating at a rate of 15 kW to maintain a building at 20 °C year-round. During the heating mode in the winter, the outside temperature is 5 °C. It is also used for cooling in the summer when outside temperature is 34°C. Saturated vapor at 2.4 bar leaves the evaporator and superheated vapor at 8 bar leaves the compressor. There is no significant heat transfer...
Anyone can help me with this question?
2 - Heat pump .The heat pump illustrated beside uses 1.5 kw mechanical power (that's is 1500 J/s) and extracts 1.2 million calories per hour from the outside air . A) How much heat is pumped into the house every day? .B) If this heat pump is made such that it is ideal and reversible, and you decide to heat your house with a gas furnace and use the heat pump as an...
8. A ground source heat pump requires 7.7 kW of power to provide 9 tons of heat to a commercial hot water heating system. The coefficient of performance (COP) of this system is A. 4.1 B. 18 C. 2.9 D. 1.2 E. 3.7 Calculations: n yield much more useful energy from hydrogen fuel than combustion engines because A. they have fewer moving parts. B. they are not limited by Carnot's efficiency law. C. they operate at lower temperatures D. they...
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