How can you implement permeability test, Mechanical Engineering

Assignment Help:

Q. How can you implement Permeability test 

As already defined, permeability of porosity of the moulding sand is the message of its ability to permit air to flow through it. It is measured in terms of "Permeability number." In this test, a test specimen of moulding sand (50.8 mm dia. × 50.8 mm long) is placed in a tube. Time taken for 2000 cm3 of air at a pressure of 10 g/cm3  to pass through the specimen is noted. Then, the permeability number is given as:

P = V × h

p ×A× t

Where,                   P = Permeability number

V = Volume of a air passing through test

Specimen

h = Height of specimen p = Pressure of air

A = Cross-sectional area of specimen

t = time taken by air to flow through the

Specimen

Under standard conditions, the formula becomes

P   = 2000 × 5.08

10 × ?/4 × (5.08)2 × t

= 50.128/t


Related Discussions:- How can you implement permeability test

Ideal speed circuit, Ideal Speed Circuit ( 36 to 40 kmph ) : Motorcycle i...

Ideal Speed Circuit ( 36 to 40 kmph ) : Motorcycle is brought into this condition by raising the throttle valve and an incorporated jet needle. The air enters through the main pa

Tempering and stabilization, Tempering and Stabilization: Tempering o...

Tempering and Stabilization: Tempering of tool steel in heat treatment is again a significant step. The quenching of such steels reasons the existence of untempered martensit

Alternating current -fundamentals of electricity , Alternating Current ( A...

Alternating Current ( AC ) : The electricity whose direction changes at regular interval is known as alternating current. I

Main characteristics of couple - mechanics, Main characteristics of couple:...

Main characteristics of couple: Sol.: The main characteristics of couple 1. The algebraic sum of the forces, having the couple, is zero. 2. The algebraic sum of moment

Determine the maximum bending stresses, Determine the maximum bending stres...

Determine the maximum bending stresses: A rectangular beam of breadth 100 mm & depth 200 mm is simply supported over a span of 4 m. The beam is loaded with a uniformly distrib

Carburettor tuning of motorcycle, Carburettor Tuning :  It is very importa...

Carburettor Tuning :  It is very important that the carburettor is tuned properly to attain the best fuel efficiency and performance of the motorcycle. Since air screw is factory

Mechanical, mostly what aspects trouble mechanical engineers?

mostly what aspects trouble mechanical engineers?

Find out the moment of inertia of a triangular area, Find out the Moment of...

Find out the Moment of Inertia of a triangular area: Find out the Moment of Inertia of a triangular area ABC with base b and height d around its base BC. Therefore or otherwis

What is enthalpy, Enthalpy defines as heat content of a chemical system.

Enthalpy defines as heat content of a chemical system.

Tolerance analysis, Tolerance Analysis This discusses the importance o...

Tolerance Analysis This discusses the importance of assigning tolerances to the dimensions. Tolerance analysis is the process of assigning suitable tolerances. Proper assignme

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