An isothermal compression process is used in air flowing at 10 kg mol/s at 28°C and 25 psia to 75 psia. Determine the power (in MW) required if the mechanical efficiency is 60% and Cp/Cv = 1.4.

Q: Steam enters an adiabatic turbine at 6 MPa and 300°C and exits at 20 kPa pressure and x=0.75…

A: Ideal gas equation:- Ideal Gas Equation is the equation defining the states of the hypothetical…

Q: Superheated steam enters turbine at 360 oC and 500 kPa and exits at 8 kPa. Calculate the state at…

A:

Q: An isentropic steam turbine processes 2 kg/s of steam at 3 MPa, which is exhausted at 100 kPa and…

A:

Q: A car wash service uses 150 litre of pressurized (3 bar) warm water (45oC) to wash each car. It…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: Water initially at 20 °C and having a mass of 100 kg is to be heated to 100°C in a boiler using…

A:

Q: For an adiabatic air compressor that has an inlet temperature of 300 K and exit temperature of 500…

A:

Q: Consider the turbocharger of an internal combustion engine. The exhaust gases enter the turbine at…

A:

Q: A passive solar house that is losing heat to the outdoors at an average rate of 50,000 kJ/h is…

A: Given data: Let us consider that the density of the water is 1000 kg/m3 and specific heat capacity…

Q: A gasoline engine is at a location where the temperature is measured to be 14.2 °C and produces 347…

A: Gasoline engine: The gasoline engine is an internal combustion engine in which the air-fuel…

Q: A pipeline carries a flow of 60.34 m3/min of steam at 1.00 MPa and 20.09°C superheat. Determine the…

A:

Q: The suction fan of a building heating system draws ambient air at 100 kPa and 30 °C into a duct of…

A: Given Data:-

Q: Before the widespread use of mechanical refrigeration, cooling was provided by ice, which was…

A:

Q: .2 kg/min of air (R=0.287, Cp=1.0062 kJ/kg.K and k =1.4) are compressed isothermally from 30 deg C…

A:

Q: Refrigerant 12 is expanded steadily in an isothermal (constant temperature) process. The flow rate…

A:

Q: Determine the ratio of work steady flow for isobaric process to the work steady flow for polytropic…

A:

Q: At P = 0.5 MPa and H = 990 kJ/kg, explain why steam exists as a wet steam.

A: Given Data P = 0.5 MPa  H = 990 kJ/kg,

Q: A gasoline engine is at a location where the temperature is measured to be 14.2 °C and produces 347…

A: Gasoline engine:The gasoline engine is an internal combustion engine in which the air-fuel…

Q: a turbine at 1100 kpa , dry and saturated . The steam is exhausted from the turbine at 200 kpa and…

A:

Q: Helium (R=0.4968 BTU/lbm-R) is compressed isothermally from 14.7 psią and 68°F. The compressed…

A:

Q: An underground cavern will be used to store energy of compressed air. the cavern has a volume of…

A: Given:Volume of the cavern, V=150000 ft3Initial pressure of the air, Pi=15 psiaFinal pressure of the…

Q: A compressor handles 3500 cfm of air as measured at intake of 14.5 psia and 75°F. At discharge, p2 =…

A:

Q: Before entering the engine of a BMW320D, air drawn in at 20°C and atmospheric pressure enters the…

A: Given:- At Inlet:-Pressure =1 atm=101.325 kPa,Temperature=20° C=293.15 K,Volume flow rate=120…

Q: Gazprom company in Russia required to compress the gas by using a single stage compressor to…

A: Given that: P1 = 100 psia P2 = 600 psia T1 = 150oF k = 1.4 psc = 14.7 Z1 = 0.43 Z2 = 0.44 Bg = 0.160…

Q: Refrigerant-134a at 1.4 MPa and 90°C is throttled to a pressure of 0.6 MPa. The temperature of the…

A: Throttling is a process in which the fluid is allowed to pass through a restricted passage and…

Q: psia to a saturated steam with a quality of  x= 93% in an isentropic process.  What is the pressure…

A:

Q: Refrigerant R-134a at 1.2 MPa and 75 °C is condensed to a saturated liquid in a condenser at…

A:

Q: It is well-known that the temperature of a gas rises while it is compressed as a result of the…

A: Given: The maximum temperature of the compressor, Te = 250oC The maximum recorded temperature in Los…

Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

A:

Q: Estimate the specific heat relationship R = Cp - Cv (kJ/kg°C), for R134a at 0.24MPa and 40°C. Using…

A: Given Data⇒ Refrigerant R-134a Pressure(P)=0.24 MPa Temperature(T)=400C

Q: At the beginning of a cycle using air, the pressure, volume and temperature are 550 kN/m 2 , 0.025 m…

A: The given values are- P1=550kPa , V1=0.025 m3, T1=288 KT2=477 K, T3=393 K, T4=288 K,  Cp= 1  kJ/kgK…

Q: Air is compressed in an adiabatic compressor. Inlet and outlet conditions are 120kPa, 30 oC and 20…

A:

Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

A:

Q: Water is heated with the aid of a diesel furnace. 2kg of diesel fuel is required for every 300…

A:

Q: Air (R = 0.3074 psia.cf/lbm.R) is compressed from 14.7 psia and 60°F to a pressure of 150 psia while…

A: Given data P1=14.7 psiaT1=60°F

Q: Rod AB is bent into the shape of an arc of circle and is lodged between two pegs D and E. . It…

A: Draw the F.B.D of the bend rod AB. As,

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.