A Carnot heat engine operates between temperature levels of 600 K and 300 K with 8...

A Carnot heat engine operates between temperature levels of 600 K and 300 K with 8 MW heat transferred in the boiler. It drives a compressor, which compresses steam from 200 kPa, 200°C to 1 MPa, 500°C. If mass flow rate of the steam is 5 kg/s. determine the following:

(a) The power output of the heat engine (kW).

(b) The power input of the compressor (kW).

(c) The efficiency of the compressor.

Expert Solution

Amanda K answered 6 months ago

A heat engine operates between two reservoirs at T2 = 600 K and T1 = 350...

A heat engine operates between two reservoirs at T2 = 600 K and T1 = 350 K. It takes in 1 000 J of energy from the higher-temperature reservoir and performs 250 J of work. Find (a) the entropy change of the Universe delta SU for this process and (b) the work W that could have been done by an ideal Carnot engine operating between these two reservoirs. (c) Show that the difference between the amounts of work done in...

A heat engine operates between a high-temperature reservoir at 610 K and a low-temperature reservoir at...

A heat engine operates between a high-temperature reservoir at 610 K and a low-temperature reservoir at 320 K. In one cycle, the engine absorbs 6800 J of heat from the high-temperature reservoir and does 2200 J of work. A) What is the net change in entropy as a result of this cycle?

A Carnot heat engine receives heat at 850 K and rejects the waste heat to the...

A Carnot heat engine receives heat at 850 K and rejects the waste heat to the environment at 298 K. The entire work output of the heat engine is used to drive a Carnot refrigerator that removes heat from the cooled space at -17⁰C at a rate of 450 kJ/min and rejects it to the same environment at 298 K. Determine; (a) the rate of heat supplied to the heat engine and (b) the total rate of heat rejection to...

A Carnot engine operates between temperatures of 200 K and 350 K. In each cycle, 4000...

A Carnot engine operates between temperatures of 200 K and 350 K. In each cycle, 4000 J of heat is added to the ideal gas. This engine works on 0.5 mols of a diatomic gas. A) Calculate the volume ratio for just the adiabatic expansion. B) Determine the compression ratio - the highest volume divided by the lowest. C) If you reversed the cycle, how much work would be necessary to pull 100 J of heat from the cold temperature...

A Carnot heat engine operates between two thermal reservoirs ( T1 > T2 ) to generate...

A Carnot heat engine operates between two thermal reservoirs ( T1 > T2 ) to generate as much power as required as to drive a machine ( input power requirement of 30 kW ) plus to drive an ideal heat pump working between 2 temperature limits ( T3 and T4 ) ( T3 > T4 ) . The pump takes 17 kW of heat from the low temperature reservoir where T1 = 1200K, T2= T3 =335 K, T4 = 278...

8-12)A heat engine operates in a Carnot cycle between 84.0°C and 355°C. It absorbs 21,600 J...

8-12)A heat engine operates in a Carnot cycle between 84.0°C and 355°C. It absorbs 21,600 J of energy per cycle from the hot reservoir. The duration of each cycle is 3.00 s. (a) What is the mechanical power output of this engine? kW (b) How much energy does it expel in each cycle by heat? kJ 12)A Carnot engine operates between 105°C and 18°C. How much ice can the engine melt from its exhaust after it has done 4.0 ✕...

A Carnot engine uses air as the working substance, receives heat at a temperature of 315oC,...

A Carnot engine uses air as the working substance, receives heat at a temperature of 315oC, and rejects it at 65oC. The maximum possible cycle pressure is 6.0MPa and the minimum volume is 0.95 liters. When heat is added, the volume increases by 250%. Determine the pressure and volume at each state in the cycle.

A heat engine operates between a source and a sink. The source temperatures vary from 300...

A heat engine operates between a source and a sink. The source temperatures vary from 300 to 1000°C. Heat is supplied to the heat engine at a steady rate of 1200 kJ/min. Using Matlab or Excel (or other) software, study the effects of the temperatures of the heat source and the heat sink on the maximum power produced and the cycle thermal efficiency. Plot the power produced and the cycle efficiency against the source temperature for sink temperatures of 0°C,...

A heat engine operates by extracting 2,000 KJ of heat from a source at 1500 K,...

A heat engine operates by extracting 2,000 KJ of heat from a source at 1500 K, and dumping 800 of waste heat into a sink at 300 K. a) Does this engine violate any known laws of thermodynamics? b) How much work does this engine produce? c) What are the first and second law efficiencies?

A "Carnot" refrigerator (reverse of a Carnot engine) absorbs heat from the freezer compartment at a...

A "Carnot" refrigerator (reverse of a Carnot engine) absorbs heat from the freezer compartment at a temperature of -17

Question