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

Explain how chips are formed, Explain how chips are prepared in cutting and...

Explain how chips are prepared in cutting and how are they classified with sketches. What are the factors responsible for creation of different forms of chips?

Explain about postweld heat treatment, Q. Explain about Postweld Heat Treat...

Q. Explain about Postweld Heat Treatment? Pressure vessels shall be postweld heat treated per applicable sections, in accordance with applicable material specifications or when

Types of coated electrodes-rutile electrode, Rutile Electrode This type h...

Rutile Electrode This type has thicker coating than cellulosic coated and the flux is mainly composed of rutile (titanium di - oxide) and silicates, with a negligible amount of c

Computerized scheduling and control manufacturing systems, Characteristics...

Characteristics Computerized Scheduling And Control Manufacturing Systems Introduction This section illustrates the unique characteristics of CCS or Computer Controlled Sc

Calculate the significant figure, Do not round intermediate calculations, h...

Do not round intermediate calculations, however for display purposes report intermediate steps rounded to four significant figures. Give your final answer(s) to three significant f

Check ferrite content of austenitic stainless steel weld, Q. Check ferrite ...

Q. Check ferrite content of austenitic stainless steel weld? Check the ferrite content of each austenitic stainless steel weld, including overlay welds, in the as-welded condit

Find out angular displacement of a partical, Find out angular displacement ...

Find out angular displacement of a partical: The angular displacement of a rotating body starting from rest is defined by φ (t ) = 4 t 3   - 3 t 2 . Find out its angular di

What is a positive displacement pump, A positive displacement pump is a liq...

A positive displacement pump is a liquid or gas to move by trapping a fixed amount of fluid or gas and then forcing (displacing) that trapped volume into the discharge pipe. Positi

What is mapp gas welding, Q. What is MAPP Gas Welding? Methyl acetylene...

Q. What is MAPP Gas Welding? Methyl acetylene-propadiene-petroleum (M inert than other gas mixtures, making it safer for use and store. MAPP can also be used at very h high-vol

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