PROBLEM 2 A household refrigerator has a coefficient of performance of 3 and requires a net power input of 0.8 kW. Question: (a) Determine the rate of heat transfer removed from the refrigerated space. (b) Determine the rate of heat transfer discharged from the refrigerator to the surrounding kitchen. (c) Determine the annual cost in $ for supplying power to the refrigerator assuming 24/7 operation and a cost of 12 cents per kWh.

Q: Thermal efficiency of a power cycle is 0.8. For the cycle, Wnet = 250 kJ. Determine Qout in kJ.

A: Thermal efficiency = 0.8 Wnet = 250 kJ Find Qout

Q: 7. A bank of solar cells supplies power to a 95% efficient electric water heater. The area of the…

A: → for the solar cell bankIncident solar flux (Sf)I = 150 w/m2The area of solar cell bank (a) =…

Q: SL-3 A refrigerator with K-4 and a reversible heat engine operate between two heat reservoirs at…

A: Solution: Given Data: COP = 4 Tc = 300 K Th = 400 K Wen = 500 J   Note: Dear Student! As per our…

Q: Exercise 5. We was to regulate the temperature of the water heater of a bungalow (ive keep it fixed)…

A: For the solution refer below images.

Q: 1 out of 3 attempts When a man returns to his well-sealed house on a summer day, he finds that the…

A:

Q: A Carnot refrigerator operates in a room in which the temperature is (Tµ = 25 °C). The refrigerator…

A:

Q: A refrigerator working between 283 K to 310K and extracting 340 J of heat. How much work required to…

A: Given data: -  The higher temperature is TL = 310 K. The lower temperature is TL = 283 K. The…

Q: You are considering adding a water-based thermal store work in combination with the heat pump. What…

A: Given Data: t=2.5 hrsQ=7 kWT=22oC   To Find: The volume of store.

Q: cold Depicted in Fig. Q1 is an irreversible refrigerator whose compressor is powered by a reversible…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: - (II) An ideal heat pump is used to maintain the inside temperature of a house at Tin = 22°C when…

A: Given data Inside temperature of house = Tin = 22 °Cheat pump does a work rate = 1700 WThe heat loss…

Q: Thermodynamics review that I cannot solve! Would appreciate some or all done out  A heat engine…

A: Note: As per our guidelines we are supposed to answer only the first 3 sub-parts. Kindly repost…

Q: SL-4 A reversible refrigerator is driven by a (non-reversible) heat engine with e-0.250. Both…

A: Since you have asked a multi-part question which contains more than 3 sub-parts, thus we can only…

Q: - A heat rate of 36,000 kJ/hr. a. What is the COP of the heat pump if the power consumed is 1.7 kW?…

A:

Q: A SYStem executes a power cycle while recieving 750 k) by heat transfer at a temperature of 1500°k…

A: GivenQ1=750kJT1=1500kQ2=-100kJT2=500KQ3=?T3=1000K

Q: AC/ pump analysis System 2 tons operating steadily to maintain 60 F inside. Temperature outside:…

A:

Q: A heat engine absorbs 20 kJ of heat from a source at 500°C and rejects 10 kJ of heat to a sink at…

A:

Q: A heat pump is used to heat a house. When the outside air temperature is 266K and the inside is…

A:

Q: A heat pump produces 10.8372 kW of heat while taking in 7.28103 kW of heat from a reservoir…

A:

Q: As an ECM it is proposed to decrease yoa by 1/4. Assuming that the interior temperature is Ti=21°C,…

A: GivenTI =21°C = 294KTOAV =5°C = 278KHeating hours Nh=3500hoursCpa =1.005kj/kg.cρa =1.2kg/m3heating…

Hydronics