A well-established way of power generation involves the utilization of geothermal energy—the energy of hot water that exists naturally underground—as the heat source. If a supply of hot water at 140o C is discovered at a location where the environmental temperature is 20o C, determine the maximum thermal efficiency a geothermal power plant built at that location can have.

Q: Q2: Source 1 can supply energy at the rate of 12000 kJ/min at 320°C. A second source 2 can supply…

A: When the source 1 is used means at the temperature of So the efficiency of the source 1 is

Q: A power plant has an overall efficiency of 30%. The plant generates 30 MW of electricity, and uses…

A: Given data: Efficiency of power plant η = 30% Energy generated EG = 30 MW The energy input for fuel…

Q: a) A heat engine takes 325 kJ of heat from a 1000 K energy reservoir and also 125 kJ of waste heat…

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Q: A Carnot heat engine receives heat from a reservoir at 900°C at a rate of 800 kJ/min and rejects the…

A:

Q: A heat pump operating based on the Carnot cycle receives heat from a reservoir at 278K and the heat…

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Q: is the net work for any cycle Zero? why

A: Yes, it is possible the net work for any cycle is zero. if the process is an adiabatic process.

Q: When a man returns to his well-sealed house on a summer day, he finds that the house is at 35°C. He…

A: Given data : initial temperature (Ti) = 35oC final temperature (Tf) = 20oC time required (t) = 30…

Q: What are limitations of micro hydro-electric power stations?

A: limitations of micro hydro-electric power stations - it deliver the electrical energy upto 1KM -Not…

Q: A completely reversible heat engine operates with a source at 1500 R and a sink at 500 R. At what…

A: Write the formula for thermal efficiency of a reversible heat engine in terms of source and sink…

Q: A power plant is operating with a heat-source reservoir at 350°C and a heat-sink reservoir at 30°C.…

A: Given data: The initial temperature of the heat source, TH = 350°C. The temperature of the sink…

Q: A system executes a power cycle while receiving 1000 Btu by heat transfer at a temperature of 900°R…

A:

Q: 3. A heat engine operates between two reservoirs at 700°C and 20°C. One-half of the work output of…

A: Find , Minimum rate of heat supply to heat engine.

Q: In an analysis, a heat engine based on the Carnot cycle operating between 1000 0C and 300 0C. The…

A:

Q: A heat engine that receives heat from a furnace at 1200°C and rejects waste heat to a river at 20°C…

A: Given data TH=1200 °c=1473 KTo=20 °c=293 Kηth=0.4

Q: A dam with a hydraulic turbine–generator located 40 m below the water surface has a rate of 4600…

A: Given that: Elevation = 40 m Mass flow rate = 4600 kg/s Electric power output = 1400 kW Generator…

Q: A heat engine operating between two reservoirs receives energy Q;=2100 KJ by heat transfer from a…

A:

Q: Define as energy systems that have the capability to produce two useful outputs simultaneousty.…

A: Define as energy systems that have the capability to produce two useful outputs simultaneously.

Q: A nonpolluting power plant can be constructed using the temperature difference in the ocean. At the…

A:

Q: A Simple Steam Power Plant under the conditions shown in the diagram. Neglect Kinetic Energy and…

A: Solution:

Q: (c) An air conditioner in a house removes heat steadily at a rate of 750 kJ/min while drawing…

A: The heating and cooling capacity of ac can be known by its Coefficient of performance (COP). It is…

Q: A 160 MW power plant consumes fuel at a rate of 60 tons/h. if the chemical energy released by the…

A:

Q: 5.) Does a refrigerator full of food consume more power if the room temperature is 200C than if it…

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Q: A paddle wheel stirs a water tank at 505 rpm. The torque transmitted by the shaft is 21N-m. At the…

A: N = 505 rpm T = 21 Nm Current I = 4 A Source = 110 V

Q: An air conditioner is removing heat at a rate of 3424 W from a room that is maintained at 22 C and…

A: Calculated power consume by the air conditioner in Watt.

Q: Gaseous nitrogen actuates a Carnot power cycle in which the volume at the beginning of the…

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Q: 22. Two (2) Carnot engines are arranged in the manner that the latter engine receives the heat…

A: Given Data: Temperature limits of both engines, 35 C and 400 C

Q: The net work output of this power plant is simply the difference between the total work output of…

A: The work-producing device that best fits into the definition of a heat engine is the steam power…

Q: A claim states that a power cycle has been invented that produces work of 400KJ and requires energy…

A: Such device is impossible, because in the system heat supplied is 300J but amount of work produce is…

Q: heat engine receives heat from a source at 1000 K at a rate of 450 kJ/s and rejects the waste heat…

A:

Q: A/A heat pump is used to meet the heating requirements of a house and maintain it at 20 C°. On a day…

A: Given Data A heat pump is maintaining a house at 20oC. TH=20+273=293 K The outdoor temperature…

Q: A heat engine operates between two reservoirs at 8000 C and 200 C. One-half of the work output of…

A: Consider the diagram shown below for the given system.

Q: Q#3: a. With the help of schematic diagram explain the Steam power plant. b. How we can improve the…

A: The steam power plant is a power station that generates electricity using water. This water converts…

Q: A heat pump operates on a Carnot heat pump cycle with a COP of 8.87. It keeps a space at 27.97 C by…

A:

Q: cycle thermal efficiency. Use the Clausius Inequality to determine σcycle, in Btu/oR. Determine if…

A:

Q: A heat pump is used to heat a house and maintain it at 24°C. On a winter day when the outdoor air…

A: Given: The temperature of house is T1=24°C. The outdoor air temperature is T2=-5°C. The rate of loss…

Q: Compare wind, solar, and power generation systems with each other and write down their advantages…

A: Wind energy:-wind energy describes the process by which the wind is used to generate mechanical…

Q: An innovative way of power generation involves the utilization of geothermal energy—the energy of…

A:

Q: An air-conditioner removes heat from a room at 20°C at a rate of 9000 kJ/hr and rejects the heat to…

A:

Q: A heat engine operating between two reservoirs receives energy Q;=2100 KJ by heat transfer from a…

A: Given, Heat received from reservoir 1, Q1 = 2100 KJ. Temperature of reservoir  1 , T1 = 2000 K Heat…

Q: Cold water at 10°C enters a water heater at the rate of 0.02 m3 /min and leaves the water heater at…

A: Given data: Water is heated from, Tin=10 °C to Tout=50 °C in the water heater. Flow of water in the…

Q: A freezer sustains a cold environment of -24°C and exhausts its heat at 36°C. Assume a Carnot cycle.…

A:

Q: A heat engine that receives heat from a furnace at 1200°C and rejects waste heat to a river at 20°C…

A: A heat engine is a heat-transforming device. It draws heat in a reservoir, then does a certain…