An Ideal gas is being heated in a circular duct as while flowing over an electric heater of 130 kW. The diameter of duct is 500 mm. The gas enters the heating section of the duct at 100 kPa and 27 deg C with a volume flow rate of 15 m3/s. If heat is lost from the gas in the duct to the surroundings at a rate of 80 kW, Calculate the exit temperature of the gas in deg C. (Assume constant pressure, ideal gas, negligible change in kinetic and potential energies and constant specific heat; Cp =1000 J/kg K; R = 500 J/kg K)

Q: Helium gas is to be heated steadily by a 3-kW (3-kJ/s) electric resistance heater as it flows…

A: Given: Helium gas heated by Q=3 KW, initial temperature at which helium enters is…

Q: (Q3) Refrigerant-134a enters a compressor at 320 kPa and 90°C at a rate of 2.15 m'is and leaves at a…

A:

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A: To find: The electrical power produced. Given: The seam enters the turbine at P1=8 MPa. The exit…

Q: (0.1 kg/s) of water enters a boiler at (323°K & 5 Mpa), and leaves as steam at (673°K & 5 Mpa). For…

A:

Q: 1. Air enters a compressor steadily at the ambient conditions of 100 kPa and 22°C and leaves at 800…

A:

Q: Refrigerant-134a enters a compressor at 200 kPa as a saturated vapor with a flow rate of 0.45 m3…

A: Given Data Refrigerant Inlet: 200 kPa, saturated vapor P=3 kW

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

A: Given data At turbine inlet At turbine exit At compressor inlet At compressor exit

Q: An air compressor receives 272 kg/min of air at 99.29 kPa and a specific volume of 0.026 m3/kg. The…

A:

Q: Refrigerant R-134a at 500 kPa and 171 enters an adiabatic nozzle steadily  with a velocity of 15…

A:

Q: The mass flow rate of the gas in a gas turbine is 40 kg/s. The specific enthalpy and velocity in the…

A:

Q: What is the the volume flow rate (m³/s) and the mass flow rate (kg/s) at the inlet at the duct exit…

A: Given data: d=50 cmP1=2.4 barT1=298.15 KV1=8 m/sP2=2 barT2=312.15 K Need to determine the volume…

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

A:

Q: (Q3) Refrigerant-134a enters a compressor at 400 kPa and 100°C at a rate of 2.2 m'is and leaves at a…

A:

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A: Answer: The electrical power produced is 21507.3 kW.

Q: Steam enters a nozzle at 350C and 800 kPa with a velocity of 12 m/s, and leaves at 250C and 200 kPa…

A:

Q: Steam enters a nozzle at 400°C and 700 kPa with a velocity of 10 m/s, and leaves at 320°C and 150…

A:

Q: Steam enters a turbine steadily at 7 MPa and 600°C with a velocity of 60 m/s and leaves at 25 kPa…

A: Given From steam table

Q: A parking garage ventilation system draws 2.5 m^3/s of air at 100 kPa and 17 C into a furnace, warms…

A:

Q: a) A diffuser is used to reduce the velocity of fluid by inducing a pressure change across the inlet…

A:

Q: A desktop computer is to be cooled by a fan whose flow rate is 0.40 m3/min. Determine the mass flow…

A:

Q: Saturated vapor enters the turbine at 8.0 MPa and exits 0.008 MPa. The turbine has an isentropic…

A:

Q: Refrigerant R-134a at 500 kPa and 120 digits enters an adiabatic nozzle steadily with a velocity of…

A:

Q: Air at temperature 27 oC and pressure 66.3 kPa enters the diffuser steadily with a velocity of 190…

A:

Q: Air is compressed from 0.1 MPa and 22 °C to a pressure of 1.0 MPa while being Last one digit of your…

A:

Q: Steam enters a long, insulated pipe at 1200 kPa, 250°C, and 4 m/s and exits at 1000 kPa. The…

A: Given data as per question Pressure of steam at entry =1200 kpa Temperature at entry = 250°Cvelocity…

Q: Q4/Air enters the compressor of a gas-turbine engine at 300 K and 100 kPa, where it is compressed to…

A:

Q: Air flows steadily adiabatically through a pipe with a constant cross-sectional area. Air is fed…

A: Given data as per question The temperature at the exit of dut =275 k Pressure at the inlet of duct…

Q: The work required for compressing a gas from an initial condition of 100 kPa and 300 K to a final…

A: Given data: Let us consider that the nozzle is adiabatic.

Q: flow rates at the inlet and at the outlet are the same, is the flow through this device necessarily…

A: If the flow to be steady then in that case the mass flow rate is constant at inlet and outlet.

Q: Steam at 2.5 MPa and 450C expands in a turbine adiabatically to saturated vapor at 50 kPa. determine…

A: Condition of steam before turbine, P1=2.5 MPa and T1=450oC Condition of steam after turbine, P2=50…

Q: Air flows steadily through an adiabatic compressor at a rate of 0.16 kg/s. The inlet conditions are…

A:

Q: Steam enters the condenser of a steam power plant at 50 kPa and a quality of 85 percent with a mass…

A: Given Data: The pressure of steam entering the condenser is, P1=50 kPa. The quality of steam at the…

Q: Air is heated as it flows steadily through a constant-are duct of 175 cm^2. It enters at 200 kPa,…

A:

Q: of 0.005 2. pressure of 800 kPa with a velocity of 300 m/s. The nozzle can be assumed to be steady…

A: Answer: (a) The mass flow rate of steam through the system is 0.0516 kg/s. (b) The temperature of…

Q: he refrigerant R-134a enters the compressor of a refrigeration machine at a pressure of 140kPa and a…

A:

Q: Air flows steadily through a diverging diffuser. The inlet area of the diffuser is 0.01 m^2, and the…

A:

Q: Refrigerant-134a enters a compressor at 100 kPa and –24°C with a flow rate of 1.35 m3 /min and…

A: Given data: Inlet pressure of the refrigerant, P1 = 100 kPa. The inlet temperature of the…

Q: Water vapor enters a turbine with a mass flow rate of 3 kg/s, and at a temperature and pressure of…

A:

Q: (Q3) Refrigerant-134a enters a compressor at 180 kPa and 50°C at a rate of 1.95 m/s and leaves at a…

A:

Q: Air enters a 28-cm diameter pipe steadily at 200 KPa and 20oC with a velocity of 5 m/s. Air is…

A:

Q: 2.Ammonia gas(k=1.32) flows isentropically from100kPa and 130C to 400kPa with required input…

A: Given:K=1.32P1=100 KPaT1=130°C =403 KP2=400 KPaW=360 KW

Q: A 2kg/s of steam expands in a turbine producing 560 kW of power output. The steam enters at a…

A:

Q: The refrigerant enters the evaporator at -30 °C with a quality of 34% and leaves the compressor at…

A: The saturation properties of ammonia at -30 degrees Celsius temperature are as shown below. The…

Q: Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is…

A: Given data diameter = 28 cm=0.28 m Pipe steadily at 200 kPa Velocity = 5m/s

Q: Steam enters a long, horizontal pipe with an inlet diameter of D1 =12 cm at 1 MPa and 300°C with a…

A: