What are the temperature and pressure at the nozzle exit

Assignment Help Mechanical Engineering
Reference no: EM13710309

Room temperature atmospheric air is accelerated by a nozzle steadily from a low velocity to a velocity of 220 m/s. If the nozzle diameter decreases by a factor of 2:

a. What is the inlet velocity of the air?

b. What is the enthalpy change during the process?

c. What are the temperature and pressure at the nozzle exit?

Notes: Assume room temperature specific heats

Reference no: EM13710309

Questions Cloud

Hot water is provided to a house by an electric water heater : Hot water is provided to a house by an electric water heater which uses a 60L tank. The electric heater is rated for a 1.6kW. The hot water tank is completely full with water at 80°C when someone starts a shower. The shower faucet mixes cold water at..
Saturated water vapor is contained in a rigid container : Saturated water vapor is contained in a rigid container. Heat is then added until the the pressure and temperature become 812.075 MPa and 400 °C, respectively. What was the initial temperature of the steam in °C?
Separation of variables method to the schrodinger equation : Apply the separation of variables method to the Schrodinger equation for the hydrogen atom in spherical coordinates. The solutions for the three ordinary differential equations obtained in step 1 should be found in a Math textbook. Please make sure t..
What is the value of maximum stress and nominal stress : A circular rod with a diameter of 32.4mm has a groove cut to a diameter of 27mm. A full radius of 2.97mm is produced at the bottom of the groove. Compute the maximum stress in the rod when an axial tensile force of 42kN is applied.
What are the temperature and pressure at the nozzle exit : Room temperature atmospheric air is accelerated by a nozzle steadily from a low velocity to a velocity of 220 m/s. If the nozzle diameter decreases by a factor of 2:
Pressure difference between the inlet and the test section : A water filled manometer is attached to the inlet and the test section of a low speed wind tunnel which has the contraction ratio of 3. what would be the pressure difference between the inlet and the test section in terms of inches of water in order ..
Living plant leaf is an open system that exchanges energy : A living plant leaf is an open system that exchanges energy (sunlight and thermal flows) + matter (O2, CO2, water vapor, etc.) with the surroundings (the exterior). Even with irreversible processes (energy dissipation) we find that the net entropy ch..
Refrigerant is saturated at the inlet to the compressor : A vapor compression refrigeration cycle using R-134a as the working fluid has an evaporator temperature of -20°F, and a condenser pressure of 140 psia. The refrigerant is saturated at the inlet to the compressor and at the exit of the condenser. The..
Steam turbine operating at steady state produces : A steam turbine operating at steady state produces 6,000 hp with a heat transfer to the surroundings at a rate of 360,000 Btu/hr. Steam enters at 600 F, at 200 psi and exits as a saturated vapor at 8 psi. Neglecting the KE and PE determine the volume..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  What is the maximum power output of the turbine

An energy conscious couple decides to dam up the creek flowing next to their cabin and estimates that a head of 7m can be established above the exit to a turbine they bought on eBay. The creek is estimated to have a flow rate of 0.9 m3/s. What is the..

  What is the initial temperature of the water

A piston-cylinder device contains 0.005 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 600 kPa. Heat is transferred at constant pressure until the temperature reaches 200°C.

  Determine a the degrees of subcooling of the refrigerant in

a heat pump with refrigerant-134 as the working fluid is used to keep a space at 25 celsius by absorbing heat from

  If the maximum cycle temperature at the heater exit is

a closed-cycle gas turbine power plant use air as the working fluid . air is compressed in a compressor heated in an

  Parallel plates form a solar collector that covers a roof

parallel plates form a solar collector that covers a roof with a 4m long plates and 1m between plates. the plates are

  A nylon thread is subjected to a 10-n tension knowing that

a nylon thread is subjected to a 10-n tension. knowing that e 3.2 gpa that the maximum allowable normal stress is 40

  Five kilograms of water initially a saturated vapor at 100

five kilograms of water initially a saturated vapor at 100 kpa is cooled to saturated liquid while the pressure is

  Calculate the number of vacancies per cubic meter

Calculate the number of vacancies per cubic meter in gold at 900°C. The energy for vacancy formation is 0.98 eV/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900°C) and 196.9 g/mol, respectively.

  Steam in a piston-cylinder assembly undergoes a polytropic

steam in a piston-cylinder assembly undergoes a polytropic process with n2 from an initial state where p 500 psia and

  High-speed elevator problem

A high-speed elevator is being designed that must be able to travel at a maximum speed of 11.5 fts. You are asked to recommend the lift motor to use. The completely furnished carriage will have a mass of 3500 pounds. The design occupancy limit will b..

  The roof will be a poured concrete slab 4in thick the

the roof of an industrial building is to be supported by wide-flange beams spaced 4ft on centers across a 20ft span.

  Determine the angular velocity

At a given instant in time, flywheel OA is caused to rotate with angular velocity of w=2rad/sec and angular acceleration of alpha=6rad/s2. determine the angular velocity of links AB and BC at this instant in time. AB=.5m, BC=.4m, OA=.3m

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd