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

Variables and quantifiers in first-order logic, Variables and Quantifiers i...

Variables and Quantifiers in First-Order Logic - Artificial intelligence: Now suppose that we wanted to say that there is a meal at the Red Lion which costs only three pounds.

Aircraft engine, what is the basic operation of gas turbine engine?

what is the basic operation of gas turbine engine?

Uses of iodoform, what is the role of iodoform in chemistry?

what is the role of iodoform in chemistry?

Water treatment plant , i need to design a water treatment plant with raw w...

i need to design a water treatment plant with raw water entering ph of 10 and needs to have a ph of 7 when leaving the treatment process the rate of flow 260lt/sec

Engineering economy , A project has a first cost of $2000. There is another...

A project has a first cost of $2000. There is another cost at the end of year 1 of $500 and the income for year 3 until 6 year is $1000 per year. If the compounding is quarterly, c

System dynamics , System Dynamics  Crucial to the development of a guid...

System Dynamics  Crucial to the development of a guidance system is an understanding of the dynamics of the system. In particular, it is necessary to understand how the acceler

Question for wator resources engineering, Compute the motor size required t...

Compute the motor size required to pump 28.3 cms through a 3,050 m long, 3.66 m diameter pipeline to an upper reservoir 610 m above the lower reservoir. Use a friction facter of 0.

Capital budgeting, what things require for finance project on capital budge...

what things require for finance project on capital budgeting?

Microprocessor, software development cycle for 8086

software development cycle for 8086

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