Fridge, engineering, Other Engineering

Assignment Help:
R-134a is compressed in an adiabatic compressor from saturated vapor at 100kPa to a final state at 1 MPa and 50 degrees Celcius. Before entering the compressor, the R-134a receives heat from air in a heat exchanger (evaporator). At the inlet of t he evaporator, the R-134a is at 100kPa and has quality 20%. The air flowing through the heat exchanger can be treated as an ideal gas with cp = 1.00 kJ/kg-K, and decreases 20K in temperature as it transfers heat to the R-134a. Assume that all flows are steady, all changes in kinetic and potential energy are negligible, and the heat exchanger involves no work.
Find:
R-134a temperature at evaporator inlet
R-134a temperature at evaporator outlet
R-134a mass flow rate through evaporator
R-134a mass flow rate through compressor
Phase of R-134a at compressor exit
Work input required for compressor
Air mass flow rate through evaporator

Related Discussions:- Fridge, engineering

Full-authority digital electronic control, Full-authority digital electroni...

Full-authority digital electronic control: The supervisory control was a step toward the full-authority, fully redundant EEC. It controls all engine functions and eliminates th

LIBS, Laser induced breakdown spectroscopy

Laser induced breakdown spectroscopy

AVIATION, CONSTRUCTION, OPERATION, AND MAINTENANCE OF AVIATION METAL PROPEL...

CONSTRUCTION, OPERATION, AND MAINTENANCE OF AVIATION METAL PROPELLER

Calculate the relative load of mobile broadband subscribers, Question: ...

Question: (a) A mobile operator wants to weigh and allocate cost towards mobile broadband subscribers with mobile broadband at 80% of the traffic and 15% of the subscribers. H

Aerofoil aerodynamics , We now have some idea about what models are availab...

We now have some idea about what models are available to simulate the flow over an aerofoil, and also how to use the Hanley package to apply these methods. Keep referring to you

Civil engg projects, wat r d new transportation based projects for d civil ...

wat r d new transportation based projects for d civil engg. students..??

Define instant demit account?, What is Demit Account? What is the use of...

What is Demit Account? What is the use of it? Demit indicates Dematerialization of reveal, in easy it is an account with which a individual can business in protection industry w

Financial econometric , need solution in Financial econometric, Do you have...

need solution in Financial econometric, Do you have an expert in Financial econometric

Limitations of the powder metallurgy process, Q. What are the limitations o...

Q. What are the limitations of the powder metallurgy process ? How are some of these overcome ? Ans. Limitations : 1. Dies and equipment costs are high. So, the process

Shift registers, Shift registers A register is a number of flip-flops a...

Shift registers A register is a number of flip-flops arranged in a circuit used for storing data.  A shift register is one that is designed to move the data along the register.

Write Your Message!

Captcha
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