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

Kennedy Theorem, the movability of 3 bar mechanism is zero then how can we ...

the movability of 3 bar mechanism is zero then how can we comment on instantaneous centre of it?

Determine the location of the hydraulic jump, A rectangular channel of widt...

A rectangular channel of width 12ft has an upstream slope of 0.02ft/ft and a downstream slope of 0.0005 ft/ft. Both reaches have lengths of 500 ft. The upstream reach has a Manning

Desirable characteristics of the piston , Desirable Characteristics of the ...

Desirable Characteristics of the Piston Silent in operation. Seizure between piston surface and inside of cylinder should not occur. Sufficiently resistant to co

Explain soft or flexible automation, Explain Soft or Flexible Automation? ...

Explain Soft or Flexible Automation? This system uses tape, a hand-held control box, microprocessors, programmable logic controllers or computers. The system can be reprogramme

Minimal external force required to achieve alignment, Q. Minimal external f...

Q. Minimal external force required to achieve alignment? Minimal external force shall be applied to achieve alignment. Flanged joints not conforming to the dimensional toleranc

Implementation of material requirement planning, Implementation of Material...

Implementation of Material Requirement Planning: The total requirements for a material from an MRP schedule are given in the following table :

Renewable Energy, I am attending Thermodynamics class at the university. Th...

I am attending Thermodynamics class at the university. The professor asked me to write a research on Renewable Energy: Solar Power. The report should be of 10 pages and at least 10

Compressive stress, Compressive Stress: The stress induced in a body, ...

Compressive Stress: The stress induced in a body, when subjected to two equal and opposite pushes as shown in figure (a) as a result of which there is an decrease in length

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