Hydrogen to be ideal gas with constant specific heats

Assignment Help Mechanical Engineering
Reference no: EM13719901

Hydrogen gas at 35ºC and unknown pressure (State 1) enters a steady, insulated system which has no work interaction with the surroundings.

Half of the gas exits at 2 bars and 90ºC (State 2) and the other half exits at 2 bar and -20ºC (State 3).

Consider hydrogen to be ideal gas with constant specific heats.

Calculate the minimum possible inlet pressure (bar) of hydrogen gas.

Reference no: EM13719901

Questions Cloud

Determine the specific heat transfer for the compressor : Air is compressed in a steady-flow compressor via a polytropic process from 15 psia and 60ºF (State 1) to 75 psia and 294ºF (State 2). Calculate the specific work (Btu/lbm) for the compressor. Determine the specific heat transfer (Btu/lbm) for the co..
Determine the entropy generation for the pump : Saturated liquid water is compressed from 100 kPa (State 1) to 2.5 MPa (State 2) in an adiabatic pump having 85% isentropic efficiency. Calculate the specific work (kJ/kg) required for the compression of liquid water. Determine the entropy generation..
Explain the moment of inertia : You are given a disc of uniform density and need to design an experiment to determine its moment of inertia, I
Calculate the mass flow rate through the two-stage turbine : Steam enters a two-stage adiabatic turbine at 8 MPa and 550ºC (State 1) and is expanded to 2 MPa (State 2) in the first stage of expansion. This steam is reheated at constant pressure to 550ºC (State 3) before entering the second stage of expansion. ..
Hydrogen to be ideal gas with constant specific heats : Hydrogen gas at 35ºC and unknown pressure (State 1) enters a steady, insulated system which has no work interaction with the surroundings. Half of the gas exits at 2 bars and 90ºC (State 2) and the other half exits at 2 bar and -20ºC (State 3).
What is the rate of entropy generation within the turbine : Air at 5 bar and 177°C (State 1) is expanded through a turbine to 1 bar and 27°C (State 2). The mass flow rate of air through the turbine is 2 kg/s. Stray heat loss of 53.22 kW occurs to a surrounding at 27°C. Calculate the power (kW) developed by th..
Rigid tank is divided into two equal parts by a partition : A rigid tank is divided into two equal parts by a partition. One part of the tank contains 3.1 kg of compressed liquid at 400 kPa and 60 degrees Celcius while the other part is evacuated. The partition is now removed, and the water expands to fill th..
Multiplied by to give teh drag of the full-scale submarine : Consider a submarine cruising at 0.18 m/s far below the surface in sea water at 20 degree C. A 1:50-scale model of the submarine is to be tested in a towing tank. The tests are performed in fresh water at 20 degree C. At what speed should the model b..
Assuming no friction losses in the bend : A pipe transports water in a 4-cm-diameter pipe with an average velocity of 10 m/s. The pipe undergoes a 90 degree bend and exits out a 2-cm-diameter nozzle. Assuming no friction losses in the bend, the total force of teh water on the bend is nearest..

Reviews

Write a Review

 

Mechanical Engineering Questions & Answers

  Phase change from the saturated liquid to saturated vapor

Consider a Refrigerant 22 at 0oC that is going through a phase change from the saturated liquid to saturated vapor. Using T-dS equations, calculate the entropy change between these two phases.

  Electronic components of computer are cooled by air flowing

The electronic components of a computer are cooled by air flowing through a fan mounted at the inlet of the electronic enclosure. At steady state, air enters at 18oC, 1 atm. For noise control, the velocity of the entering air cannot exceed 0.9 m/s. F..

  The temperature and pressure of the stream entering the

a stream containing 57 mol n-octane and the remainder ethylene is to be separated by flash distillation. the molar

  Initially the nitrogen is at 110kpa and 25 celcius and then

there is 0.7kg of nitrogen in a piston-cylinder device. initially the nitrogen is at 110kpa and 25 celcius and then it

  Regenerative steam cycle has boiler pressure and temperature

A single-stage ideal regenerative steam cycle has a boiler pressure and temperature of 5000 kPa and 500 C, and a condensing pressure of 10 kPa. The extraction pressure is 500 kPa. Find (i) the net work, in kJ/kg, (ii) the work ratio, and (iii) the th..

  The system is cooled in a two-step process i 1-2 constant

a piston-cylinder assembly of initial volume of 0.6 m3 contains h2o at 500 kpa and 280oc. the system is cooled in a

  What is the indentation diagonal length when a load of 075

what is the indentation diagonal length when a load of 0.75 kg produces a vickers hv of 510? calculate the vickers

  Calculate the work for the entire process

A frictionless piston-cylinder contains 3.0 kg of H2O and is initially at 300 kPa. The initial volume is 1.0 m3. The water is heated until the temperature is 300 C. If the volume within the system reaches 1.5 m3, the piston hits a set of stops and is..

  Gas turbine engine has a pressure ratio

A gas turbine engine has a pressure ratio of 10, and the intake air is at 90 kPa and 280K. Both the compressor and turbine have an isentropic efficiency of 100% and a regenerator with an effectiveness of 0.8 is used. The highest temperature in the cy..

  The barometric pressure is reported to be 6055 torr and the

1 the barometric pressure is reported to be 605.5 torr and the temperature of the water is 22.5 c what is the pressure

  An air conditioner uses r134 the condenser pressure is 1400

an air conditioner uses r134 the condenser pressure is 1400 kpa and the evaporator pressure is 201 kpa. find the cycle

  The retarding force due to the fluid is proportional to the

a pendulum consisting of a bob of mass m is suspended from a massless inextensible string of length l in a viscous

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