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

Two coplanar forces are acting on the rigid body, Steps for solving the pro...

Steps for solving the problems when more than two coplanar forces are acting on the rigid body: The steps are as; 1. Check the Problem for the concurrent or Non concurren

Corollaries of first law of thermodynamics, Corollaries of first law of the...

Corollaries of first law of thermodynamics: First law of thermodynamics has significant corollaries. Cor ollary 1: (First Law for process). There exists property of

Brazing vs welding, Brazing Vs Welding Following are the differences be...

Brazing Vs Welding Following are the differences between brazing and welding. (i)  In brazing, the joint surfaces are not raised to fusion point (or melted) and the joint is

Agriculture, i am thinking that neglecting the foot gears and put hand gear...

i am thinking that neglecting the foot gears and put hand gears instead of it in two wheelers .so what is the procedure

Define properties of system, Define Properties of System For defining a...

Define Properties of System For defining any type of system particular parameters are required. Properties are those observable characteristics of the system, which can be util

Deflection at the centre - simply supported beam, Deflection at the centre:...

Deflection at the centre: A simply supported beam of span 6 m is subjected to Udl of 24 kN/m for a length of 2 m from left support. Discover the deflection at the centre, maxi

Explain external pressure design, Q. Explain External Pressure Design? ...

Q. Explain External Pressure Design? Determine requirements for external pressure based on the expected operation of the vessel, and add a suitable operating margin to establis

Scope of work for a project in mechanical engineering, Q. Scope of work for...

Q. Scope of work for a project in Mechanical Engineering? The Mechanical Engineering scope of work for a project involves the design and specification of mechanical equipment a

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