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

Fluid mechanics, how to calculate atmospheric pressure?

how to calculate atmospheric pressure?

Assigment.., Describe the internal structure, bonding of atoms and molecule...

Describe the internal structure, bonding of atoms and molecules and to understand the mechanical properties of materials. Comprehensive understanding of properties of materials, at

Magnitude of the normal force, A Mercedes-Benz 300SL (m = 1600 kg) is parke...

A Mercedes-Benz 300SL (m = 1600 kg) is parked on a road that rises 20° above the horizontal. (a) What is the static frictional force that the ground exerts on the tires? (b) Wh

Horizontal curves - railways, Horizontal Curves - Railways In railwa...

Horizontal Curves - Railways In railway engineering, the horizontal curve is defined by its degree as well as by its radius. The degree is the angle subtended at the centre

Battery-electrical system , Battery: Battery is a device that produces dir...

Battery: Battery is a device that produces direct current (DC). The chemical energy of battery ingredients converts into electrical energy in the form of direct current. This is a

Piston and piston rings - part of combustion engine, Piston and Piston Ring...

Piston and Piston Rings - Part of combustion engine: Piston: The piston reciprocates within cylinder and transmits force exerted by expanding gases to crank by means of conn

What do you mean by rigid bed models, Q. What do you mean by Rigid bed mode...

Q. What do you mean by Rigid bed models? Models with rigid boundary and geometrically similar form are used in studies connected with outlet works, stilling basins, spillways

What is coated electrode, Q. What is coated electrode? These types of e...

Q. What is coated electrode? These types of electrodes are prepared by coating of flux on metal wire. Due to arc metal electrode melts and used as filler metal. Flux melts and

Introduction to motorcycle repairing , INTRODUCTION: Here, we shall study ...

INTRODUCTION: Here, we shall study about the repairing of motorcycle. Automobile technicians should acquire basic troubleshooting and repairing skills for attending various breakd

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