performance coefficient used to heat house
The inside is kept at 24^circ{rm C} while the outside is -24^circ{rm C}.
Express your answer using two significant figures.
COP(max)=???
Homework Answers
Find the maximum possible coefficient of performance for a heat pump used to heat a house...
Find the maximum possible coefficient of performance for a heat pump used to heat a house in a northerly climate in winter. The inside is kept at 21 ∘C while the outside is -25 ∘C. COPmax = ??
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...
What is the coefficient of performance of an ideal heat pump that extracts heat from 5.0...
What is the coefficient of performance of an ideal heat pump that extracts heat from 5.0 ∘C air outside and deposits heat inside a house at 23 ∘C ? (The answer is 16. COP=16.) If this heat pump operates on 1200 W of electrical power, what is the maximum heat it can deliver into the house each hour? (This is what I am having trouble answering. The answer is not to multiply 16 and 1200 to get 19,200 J, nor...
An ideal heat pump is used to maintain the inside temperature of a house at Tin...
An ideal heat pump is used to maintain the inside temperature of a house at Tin = 20 ∘C when the outside temperature is Tout. Assume that when it is operating, the heat pump does work at a rate of 1700 W . Also assume that the house loses heat via conduction through its walls and other surfaces at a rate given by (650W/∘C)(Tin−Tout). For what outside temperature would the heat pump have to operate at all times in order...
An ideal vapor-compression heat pump cycle using R-134a is used to heat a house. The inside...
An ideal vapor-compression heat pump cycle using R-134a is used to heat a house. The inside temperature is 22 ℃; the outside temperature is 0 ℃ Saturated vapor at 2.2 bar enters the compressor, and saturated liquid leaves the condenser at 3 ba. The mass ow rate is 0.2 kg/s. Detemine: a the power iput to the compressor (in kw) b. the coefficient of performance c. the coefficient of performance if the system were used as a refrigeration cycle d....
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...
Lol Question 4 1 pts A heat pump is used to maintain a temperature of 17°...
Lol Question 4 1 pts A heat pump is used to maintain a temperature of 17° C inside a house while the temperature outside is 6°C. What is the maximum theoretical COP of this heat pump under these conditions?
termo QUESTION 4 (a) Derive and expression for the coefficient of performance (COP) of a completely...
termo
QUESTION 4 (a) Derive and expression for the coefficient of performance (COP) of a completely reversible heat pump in terms of the thermal energy reservoir, high temperatures T, and low temperature 1, respectively. Draw a diagram that support the COP derivation. [7 marks] (b) A Heat Pump (HP) is to be used for heating a bouse in winter as illustrated in Figure Q4(b). The house is to be maintained at 26°C at all times. When the temperature outdoors drop...
A Review | Constants | Periodic Table Air conditioners are rated by their coefficient of performance...
A Review | Constants | Periodic Table Air conditioners are rated by their coefficient of performance at 77 °F inside temperature and 99 °F outside temperature. An efficient but realistic air conditioner has a coefficient of performance of 3.2. Part A What is the maximum possible coefficient of performance? ΑΣφ COP max Submit Request Answer
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
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...
An ideal vapor-compression heat pump cycle using R-134a is used to heat a house. The inside temperature is 22 ℃; the outside temperature is 0 ℃ Saturated vapor at 2.2 bar enters the compressor, and saturated liquid leaves the condenser at 3 ba. The mass ow rate is 0.2 kg/s. Detemine: a the power iput to the compressor (in kw) b. the coefficient of performance c. the coefficient of performance if the system were used as a refrigeration cycle d....
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...
Lol Question 4 1 pts A heat pump is used to maintain a temperature of 17° C inside a house while the temperature outside is 6°C. What is the maximum theoretical COP of this heat pump under these conditions?
termo
QUESTION 4 (a) Derive and expression for the coefficient of performance (COP) of a completely reversible heat pump in terms of the thermal energy reservoir, high temperatures T, and low temperature 1, respectively. Draw a diagram that support the COP derivation. [7 marks] (b) A Heat Pump (HP) is to be used for heating a bouse in winter as illustrated in Figure Q4(b). The house is to be maintained at 26°C at all times. When the temperature outdoors drop...
A Review | Constants | Periodic Table Air conditioners are rated by their coefficient of performance at 77 °F inside temperature and 99 °F outside temperature. An efficient but realistic air conditioner has a coefficient of performance of 3.2. Part A What is the maximum possible coefficient of performance? ΑΣφ COP max Submit Request Answer
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