Determine piston displacement of compressor and expender, Mechanical Engineering

Assignment Help:

(a) Explain various types of methods of refrigeration.

(b) Write the factors consideration for the selection of refrigerant for a system.

A 5 tonne refrigerating machine operating Bell Coleman cycle has an upper limit of pressure of 12 bar. The pressure and temperature at the start of the compression are 1 bar and 17oC respectively. The compressed air cooled at constant pressure to a temperature of 40oC enters the expansion cylinder.

Assuming both the expansion and compression processes to be isentropic with λ = 1.4; Determine

(i) C.O.P.

(ii) Piston displacement of compressor and expender.

(iii) Quantity of air in circulation per minute

(iv) Bore of compressor and expansion cylinders.

The unit run at 250 r.p.m. and is double acting. Stroke length is 200 mm.

(v) Power required to drive the Unit.

Take Cp = 1KJ/KgK; Cv = 0.71 KJ/Kgk; R = 0.287 Kj/KgK


Related Discussions:- Determine piston displacement of compressor and expender

Explain the semi universal drilling machine, Explain the semi universal dri...

Explain the semi universal drilling machine The semi universal drilling machine this machines, in addition to the above three basic movements, carry provision for swinging of

Numerical problems based on overhanging beam, Numerica l Problems Based on...

Numerica l Problems Based on Overhanging Beam: Q: Draw Shear force diagram for the simply supported beam loaded as shown in the figure given below. Sol.: Let the

Projection welding, Projection Welding Projection welding is similar to...

Projection Welding Projection welding is similar to spot welding but for the fact that the welding takes place at the projections on the surface of the metals and flat shaped e

Swing arm shock absorber , Swing Arm Shock Absorber :   This type of suspe...

Swing Arm Shock Absorber :   This type of suspension is used to serve for rear part of motorcycle. The advantage of this type of suspension is that large deflections are absorbed.

I.c.engine, compression ignition engine fore stork with neat daysgram

compression ignition engine fore stork with neat daysgram

Determine the maximum profit value, A company makes two types of sofas, reg...

A company makes two types of sofas, regular and long, at two locations, one in Nottingham and one in London. The plant in Nottingham has a daily operating budget of £45,000 and can

Cold pierce, Material S48C thickness 4mm pierce hole daimeter 4 mm can do o...

Material S48C thickness 4mm pierce hole daimeter 4 mm can do or not? please advise

Simulate the compression test, This assignment will simulate large deformat...

This assignment will simulate large deformations (nonlinear geometry) and occurrence of necking and buckling due to static tensile and compressive loading of a given elastic-plasti

Moment of resistance, Explain the Moment of resistance? Sol.: The two...

Explain the Moment of resistance? Sol.: The two equal and unlike parallel forces, the lines of action of which are not same, form couple. The resultant compressive force ( P

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