What is the ratio of chilled air to warm air

Assignment Help Chemical Engineering
Reference no: EM131172224

A device with no moving parts provides a steady stream of chilled air at 248.15 K (-25°C) and 1 bar. The feed to the device is compressed air at 298.15 K (25°C) and 5 bar. In addition to the stream of chilled air, a second stream of warm air flows from the device at 348.15 K (75°C) and 1 bar. Assuming adiabatic operation, what is the ratio of chilled air to warm air that the device produces? Assume that air is an ideal gas for which Cp = (7/2)R.

Reference no: EM131172224

Questions Cloud

Whether the claimed performance of process is consistent : Determine whether the claimed performance of the process is consistent with the second law. Assume that air is an ideal gas for which Cp = (7/2)R.
Are isentropic processes necessarily reversible : Reversible adiabatic processes are isentropic. Are isentropic processes necessarily reversible and adiabatic? If so, explain why; if not, give an example illustrating the point.
What will happen in the gasoline market if oil prices rise : What will happen in the gasoline market if oil prices rise? What will happen in the cell phone market as technology improvements bring costs down? What will happen in the syrup market if honey prices rise?
Review the operational analysis done through the interview : In the design phase of Fabrics, Inc. Blanchard and Thacker (2013) only developed objectives for conflict resolution. Choose one of the other training requirements and develop three to four learning objectives. Critique the design component and ide..
What is the ratio of chilled air to warm air : Assuming adiabatic operation, what is the ratio of chilled air to warm air that the device produces? Assume that air is an ideal gas for which Cp = (7/2)R.
How would you assess business risk of hih insurance limited : How would you assess the business risk of HIH Insurance Limited? List several inherent risk factors effecting HIH at the financial report level and whether they would have contributed to an increase or decrease in the inherent risk assessment
Determine a numerical value for the ratio of heat : Determine a numerical value for the ratio of heat extracted by the refrigerator ("cooling load") to the heat delivered to the engine ("heating load").
Write business proposal for any organisational issue : Task: Write a business proposal for any significant organisational issue. It could be any hypothetical or real issue in the organisation
What is the total rate of entropy generation in w k-1 : An electric motor under steady load draws 9.7 amperes at 110 volts; it delivers 0.93 Kw of mechanical energy. The temperature of the surroundings is 300 K. What is the total rate of entropy generation in W K-1?

Reviews

Write a Review

Chemical Engineering Questions & Answers

  Show that the thermal efficiency of this cycle

In an optimum countercurrent exchanger, the temperature of the air leaving the compressor is raised to that of point D in Fig. 8.12, and the temperature of the gas leaving the turbine is cooled to that of point B in Fig. 8.12. Show that the therma..

  What is the nature of the process fluid

What is the nature of the process fluid and what are the objectives of the two sample points and in what way do the samples reaching the instruments differ?

  Calculate the reactor volumes required to process

3.5 Calculate the reactor volumes required to process I043 liter/min of 3 molar .4 in the aqueous reaction A -+ 2B for PFTR and CSTR reactors. (a) 90% conversion, k 2 min-I (b) 99% conversion, k = 2 mole liter-' min-(c) 99.9% conversion, k 2 mole lit..

  Draw a catalytic cycle for one initermolecular

Analysis of these publications outline the chiral ligands used and draw a catalytic cycle for one initermolecular and one intramolecular reaction - the asymmetric Heck reaction

  Calculate the amount of work

Steam in a closed system is compressed by reversible isothermal process in a heat bath at 250 °C, starting from an initial pressure of 15 bar. During the process, the steam transfers 2000 kJ/kg of heat to the bath. Determine the final state and th..

  Determine the air-gap flux density

If the bore of the machine is 42 cm in diameter, its axial length is 28 cm, and each pole subtends an angle of 60°, determine the air-gap flux density. (Note that the number of parallel paths is equal to the number of poles for lap windings.)

  Discuss the consequent effects on real and reactive power

Discuss the consequent effects on the real and reactive power losses, and on the voltage drop across the series impedance of the transmission system.

  Aqueous sulfuric solutions containing

Aqueous sulfuric solutions containing 15.0 wt% H2SO4 and 80.0 wt% H2SO4 are mixed to form a 30.0 wt% product solution. The 15 % solution was in a lab in which the temperature was 77 F. The 80% solution had just been taken from a storage cabinet in an..

  Calculate the steam consumption

The specific heat of the feed solution is 3.77 J/g_OC, and the latent heat of vaporization of the solution may be taken equal to that of water. Radiation losses may be neglected.

  Perform the energy and entropy balances

The precooler uses cold vapor from the separator as the cooling medium; this vapor leaves the precooler at 20 °C (stream). Perform the energy and entropy balances on the basis of 1 kg/s of liquid nitrogen produced.

  Baffled tank with a six blade turbine agitator

Equal rates of mass transfer for the production of the fine chemical are required. This is often required for certain types of organic synthesis.

  Describe how these limestone objects are corroded by the

when sulfuric acid is a component of polluted air it chemically attacks statues memorials and monuments made from

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