1. An engine developer proposes one that has an operating temperature of 28°C surface of the water body and 8°C underwater. It produces 120 kW by pumping 23 kg of water. Determine if the invention is possible.
Q: A piston–cylinder device initially contains 1.4 kg of refrigerant-134a at 100 kPa and 20°C. Heat is…
A: Given data
Q: Derive the formula for the nonflow work in terms of P1,P2, V1 and V2 only for a process involving…
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Q: 5. A 4-m x 5-m × 6-m room is to be heated by a baseboard resistance heater. It is desired that the…
A: find the required power of the resistance heater.
Q: Consider a classroom that is losing heat to the outdoors at a rate of 12,000 kJ/h. If there are 40…
A: Given, Qout = 12,000 kJ/h = 12,000/(3600) kJ/Sec = 3.33 kJ/Sec= 3.3 kW Heat Generated by…
Q: A piston-cylinder device contains 0.35 kg of air initially at 2423 kPa and 321 oC. The air is first…
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Q: Determine the internal energy of compressed liquid at P= 5000 psia and T = 320°C Select one: O a.…
A: As per given question P=5000 psia T=320°c We have to find internal energy of compressed liquid
Q: Air is compressed in a piston-cylinder device in a eversible isothermal process. If the work done by…
A: first law of thermodynamics: The first law of thermodynamics is stated as energy can neither be…
Q: An ideal gas in a piston/cylinder is heated with 2 kJ during an isobaric process. Is the work…
A: Given data An ideal gas in a piston/cylinder is heated with 2 kJ during an isobaric process. Is the…
Q: Question No 1: An office worker claims that a cup of cold coffee on his table warmed up to 80 C by…
A: In this question an office worker claims that a cup of cold cofee on his table warmed upto the…
Q: If the steam undergoes a process under Pv1.319 = C, and the work steady flow is found to be 372.75…
A: Given data, Pv1.319 = C Here n= 1.319 , and process is polytropic, When the flow is steady - W=…
Q: Exercise-2 Steam enters a nozzle at 400 deg C and 800 kPa with a velocity of 10 m/s, and leaves at…
A: Given : At inlet of nozzle 1 : At exit of nozzle 2: here negative sign represent the heat loss .…
Q: A Car with a relief valve-equipped tires start its travel near equatorial sea level at 301.325 kPaa…
A: Given, Absolute pressure before drive = P1 = 301.325 kPa Temperature before drive = T1 = 23.3 oC =…
Q: A rigid chamber contains 100 kg of water at 500 kPa, 100°C. A paddle wheel stirs the water at 1025…
A: φ. Rigid chamber, m=100kg of water N=1025 r.p.m; T=145 N-m; I=8.5 a.m.p; V=110V;…
Q: An air compressor handling 300 m³/min increases the pressure from 1 bar to 2.3 bars and heat is…
A: Given Data Discharge rate, Q=300 m3/min=5m3/s Inlet pressure, P1=100Kpa Outlet pressure, P2=230KPa…
Q: An ideal compressor compresses 12 kg/min of air isothermally from 99 kPa and a specific volume of 1…
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Q: The approach and efficiency of cooling tower are 10 oC and 65 %, respectively. If the temperature of…
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Q: Consider an environment of zero absolute pressure (such as outer space). How will the actual work…
A: Given: The absolute pressure of the environment is PO=0 kPa.
Q: The Carnot efficiency of a heat engine running between two temperature limits 30 °C and 550 °C is…
A: Given: Higher Temperature = 550 deg or 823 K Lower Temperature = 30 deg or 303 K To Find: Carnot…
Q: 3. A closed rigid container of Im³ holding air at 380kPa and 269K is being added by heat until the…
A: Given data:
Q: An ice block at -12 oC, and of mass 3kg is completely converted into steam at 120 oC. Determine the…
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Q: Q1. Considering the example of refrigerator as system, define and provide the example from the…
A: As per the Bartleby answering guidelines we are supposed to answer first Question only. Please…
Q: If the steam undergoes a process under Pv1.141 = C, and the work steady flow is found to be 451.99…
A:
Q: The Refrigerating Effect of 94 tons of refrigeration is 127.75 kJ/kg. Determine
A: given:refrigeration effect =127.75kj/kgrffrigerator of 94 tons
Q: A pump handling a liquid raises its pressure from 1 bar to 30 bar. Take the density of the liquid as…
A: Given, Initial pressure = P1 = 1 bar = 1 x 105 Pa Final pressure = P2 = 30 bar = 30 x 105 Pa Density…
Q: A piston-cylinder device contains 6 kg of air at 440 kPa and 32°C. During an isothermal expansion…
A:
Q: -2 ) Determine the heat need to be supplied for a Carnot engine operating between 600°C and 40°C…
A:
Q: 2 lbm of refrigerant-134a occupy a 3 ft^3 system at 50 psia. In what state is the refrigerant…
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Q: Sensible heat transfer from a warm body to a cold body is only possible when
A: Sensible heat: The heat that is required to increase unit temperature of unit mass of any object is…
Q: The efficiency of a heat engine is working between temperature T1 and T2 (T1 > T2) is
A: Given:- Heat engine Higher temperature=T1 Lower temperature=T2 T1>T2 To find:- Efficiency
Q: Supplementary Problems 1 3. A piston-cylinder device contains 6 kg of refrigerant-134a at 800 kPa…
A:
Q: A 2 ft ^ 3 rigid tank with 134a refrigerant is initially at 100 psia and 40% quality. Heat is…
A: Write the given data with suitable variables. V=2 ft3P1=100 psiax=0.4P2=300 psiaT=120 lbf-ftN=1000…
Q: A passive solar house that was losing heat to the outdoors at 5°C at an average rate of 50,000 kJ/h…
A: Given: N=50 V=20 lt P= 15 kW T1=80°C T2=22°C t=10 h Q=50000 kJ/h
Q: A 250 HP motor is used to drive a compressor. If the heat loss from the compressor is 25 KW and the…
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Q: Q3// An experimentalist claims that, based on his measurements, a heat engine receives 300 Btu of…
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Q: Four pounds of steam initially dry and saturated expand isentropically in a non-flow process from an…
A: Given: Mass of the steam, ms=4 lb initial pressure, P1=275 psia final pressure, P2=125 psia
Q: A piston–cylinder device initially contains 1.4 kg of refrigerant-134a at 100 kPa and 20°C. Heat is…
A: Given data m=1.4 kgP1=100 kPaT1=20°cP2=120 KPa
Q: A student living in a 4m x 6m x 6m dormitory room turns on her 150 W fan before she leaves the room…
A: GivenV = 4 x 6 x 6 = 144 m3 1 or i - initial ; F - FinalP = 150 w , SQ = 0t = 10 h , R…
Q: A passive solar house that is losing heat to the outdoors at an average rate of 50,000 kJ/h is…
A: Heat transfer,Qout=50000 kJ/hr×10hrQout=500000 kJ Number of containers, N=50 Volume of water,…
Q: A 800 J of work is done by a system, while 500 J of heat is removed from the system.
A: Given that, Work done by the systen, W=800 J,Heat removed from the system, Q=-500 JNegative sign is…
Q: The kitchen, bath, and other ventilation fans in a house should be used sparingly since these fans…
A: Calculate the density of air in the room, Calculate the volume of the room as,
Q: A refrigeration plant produces 0.139 kg/s of ice at -5°C from water at 30°C. If the power required…
A: Given data: m˙=0.139 kgsT1=30°CT2=0°CT3=-5°CPin=22 kWCpice=2.1 kJkgK
Q: Wet steam at 200°C and 20% moisture is compressed in an irreversible adiabatic process to a pressure…
A: Given details: T1=200°CT1=225°Cmoisture=20%P2=2.3 MPa Note:Given answer is not correct go through…
Q: A passive solar house that is losing heat to the outdoors at 3C at an average rate of 50,000 kJ/h is…
A: Write the expression of the energy balance of the house.
Q: Air is compressed polytropically in a cylinder according to PV1.314 = C. The work is required is…
A:
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- 1. An engine from a quarry vehicle used in the Build a Beach program of DEMR has a power requirement of 560 kW. Per hour of its operation, it ejects 234 MJ into its surroundings at 50 °C. If it behaves like a Carnot engine, answer the questions below. A. How much work (MJ) is done by the engine per hour of operation? B. What is the efficiency (%) of the engine?C. What is the temperature (°C) of the hot reservoir? 2. Determine the entropy change (kJ/K) associated to the conversion of 10 kg of ice at -11 °C to steam at 121 °C. 3. Anna and Beth are using another rare metal, the nth metal (c = 0.600 J/g-℃), to build the 5-kg cuirass of their design. Initially, the metal is at 2250 K. It is then submerged to 10 kg of water at 15 °C. If the remaining liquid water after submerging the metal is 8.5 kg, solve for the net entropy change (kJ/K) of the system.Q2. Thermal power station contains three units, one 700kw and two units with 500kw for cach one. The fuel consumption is 0.5kg/kwh and the calorific value of fuel oil is 12000kcal/kg. If the plant capacity factor is 40%, estimate : 1. The fuel oil required for a week. 2. Overall efficiency.5. An engine trom a quary vehicle used in the Buid a Beach program of DEMR has a power requirement of 560 kw. Per hour of its operation. it ejects 234 MJ into its suroundings at 50 °C. If it behaves like a Carnot engine, answer the questions below. a. How much work (MJ) s done by the engine per hour? b. What is the efficiency (%) of the engine? c. What is the temperature ("C) of the hot reservoir?
- A circular container has a diameter of 3.5 m. How many hours can this storage supply an engine having 25-degree API with fuel consumption of 1434 kg/day?a steam engine operation between 150C and 550C. ehat is theorithical maximum thermal effciency?3. A water-tube boiler having a heating surface of 325.23 m² evaporates 6349.21 kg of water in an hour from a feed temperature of 66 °C. Boiler pressure is at 1.04 MPaa and the steam quality at the boiler outlet is 99 %. What percent of its rated Bo. Hp was the boiler developing?
- Air is used as a working substance in a given internal combustion engine, which is supplied with heat at a constant volume. Based on the data, calculate the The work of the cycle.Q/ A piston'cylinder arrangement, contains CO2 at 200 kPa. 350°C. The 40-kg piston has a diameter of 0.2 m and initially pushes against the stops. The atmosphere is at 100 kPa and 20°C. The cylinder now cools as heat is transferred to the ambient. a. At what temperature does the piston begin to move down? b. How far has the piston dropped when the temperature reaches ambient? c. Draw P-v diagram CO 20 onBook - Advance Energy Systems, 2ed, Khartchenko
- .The thermal efficiency of a heat engine is 30%, the heat rejected from the engine is 30kJ, evaluate the heat input to the engine.Q1 Explain the following sub steps breifly. (a) Explain The Following Terms: Isolated System, Open System And Closed System And Give Example Where Ever Possible (b)Explain the following with the help of diagram: Extensive properties, Intensive properties and specific properties. Enthalpy, Entropy and Internal energy. (c) What Happens If Petrol (Gasoline) Is Used In A Diesel Engine, Siesel Engine Will Work?Steam is throttled to 0.15 MPa, 140 0C. What is the quality of throttled steam if its pressure is 0.85MPa?