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Assignment Name: The second law of Thermodynamics for a heat pump Homework Purpose: Apply the second...
We propose to heat a house in the winter with a heat pump. The house is...
We propose to heat a house in the winter with a heat pump. The house is to be maintained at 20°C at all times. When the ambient temperature outside drops to -10°C, the rate at which heat is lost from the house is estimated to be 25 kW. What is the minimum electrical power (in kW) required to drive the heat pump? Use the correct sign convention to indicate the direction of work. Hint: the minimum power happens with the...
2. A heat pump is operated to maintain a home at 25 °C when the outside temperature is only -5 °C...
2. A heat pump is operated to maintain a home at 25 °C when the outside temperature is only -5 °C. (a) If the house requires 50 kW heat, what is the power required for the heat pump? Assume the heat pump to be a Carnot heat pump (b) If an electric heater was used for this purpose instead, assuming an electric current of 5A, what would be the required resistance of the heater? (c) If electricity costs 10 cents...
A reversible heat engine receives heat of 2000 kJ from a furnace at temperature of 600...
A reversible heat engine receives heat of 2000 kJ from a furnace at temperature of 600 0C and rejects waste heat into the house. The portion of work produced by this heat engine utilized to drive a reversible heat pump to warmup the same house during the winter. The house is to be maintained at 21 0C at all times even though outside temperature drops to -15 0C. If the net-work output of the combined heat engine and heat pump...
Please Solve all the parts. if you cannot. please leave for someone who can. Also please...
Please Solve all the parts. if you cannot. please leave for
someone who can. Also please write everything clearly so I can
read. Thank you.
Task A heat pump delivers 8 kJ thermal energy to the high temperature reservoir (the inside of the house). Consider the following five cases for the power consumed in the heat pump: a) W 8 k] b) W 0 kJ c) W 1 kJ d) W 0.5 kJ e) W 0.87 kJ Using the Clausius...
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...
During winter time a heat pump is operating on a heating mode to maintain a living...
During winter time a heat pump is operating on a heating mode to maintain a living room at 23oC during which the outside temperature is -5oC. The system is using R134a as a working fluid. The refrigerant leaves the condenser at 28oC and enters a compressor at -10oC. The refrigerant flow rate is 0.12kg/s. Assume an ideal VCC to evaluate the system and report the followings: a. Process diagram b. Heating capacity kJ/hr c. Coefficient of performance of the system...
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...
Please see attached Pictures. This is a homework assignment for Legal environment of Business that i...
Please see attached Pictures. This is a homework assignment for
Legal environment of Business that i need help solving.
Stacy mails Jennifer an offer to sell Jennifer 43 bags of rice for $107.00. Jennifer replies to Stacy by mail, stating, " agree to pay $105.75 for 43 bags of rice. Neither Stacy nor Jennifer are merchants. What is the status of Stacy's offer. 1. a. Jennifer has accepted it b. Jenifer has rejected it and counteroffered c, Jennifer has breached...
Please read the article and answer about questions. You and the Law Business and law are...
Please read the article and answer about questions. You and the Law Business and law are inseparable. For B-Money, the two predictably merged when he was negotiat- ing a deal for his tracks. At other times, the merger is unpredictable, like when your business faces an unexpected auto accident, product recall, or government regulation change. In either type of situation, when business owners know the law, they can better protect themselves and sometimes even avoid the problems completely. This chapter...
We propose to heat a house in the winter with a heat pump. The house is to be maintained at 20°C at all times. When the ambient temperature outside drops to -10°C, the rate at which heat is lost from the house is estimated to be 25 kW. What is the minimum electrical power (in kW) required to drive the heat pump? Use the correct sign convention to indicate the direction of work. Hint: the minimum power happens with the...
2. A heat pump is operated to maintain a home at 25 °C when the outside temperature is only -5 °C. (a) If the house requires 50 kW heat, what is the power required for the heat pump? Assume the heat pump to be a Carnot heat pump (b) If an electric heater was used for this purpose instead, assuming an electric current of 5A, what would be the required resistance of the heater? (c) If electricity costs 10 cents...
Please Solve all the parts. if you cannot. please leave for
someone who can. Also please write everything clearly so I can
read. Thank you.
Task A heat pump delivers 8 kJ thermal energy to the high temperature reservoir (the inside of the house). Consider the following five cases for the power consumed in the heat pump: a) W 8 k] b) W 0 kJ c) W 1 kJ d) W 0.5 kJ e) W 0.87 kJ Using the Clausius...
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...
Please see attached Pictures. This is a homework assignment for
Legal environment of Business that i need help solving.
Stacy mails Jennifer an offer to sell Jennifer 43 bags of rice for $107.00. Jennifer replies to Stacy by mail, stating, " agree to pay $105.75 for 43 bags of rice. Neither Stacy nor Jennifer are merchants. What is the status of Stacy's offer. 1. a. Jennifer has accepted it b. Jenifer has rejected it and counteroffered c, Jennifer has breached...
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