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

Calculate the machine power factor, A 3-phase, 15-kV, 4-pole, cylindrical r...

A 3-phase, 15-kV, 4-pole, cylindrical rotor synchronous generator is connected to a 50-Hz infinite bus. The synchronous reactance of the machine is X s = 0.6 ohms per phase and th

Maximum bending moment, Maximum Bending Moment: The SF changes sign at...

Maximum Bending Moment: The SF changes sign at A, among A and B and at B. Let a section XX at a distance x from the end C as illustrated in Figure SF at section XX, F x

Transverse electric field, Transverse Electric Field Consider a charged...

Transverse Electric Field Consider a charged particle (e.g. an electron) moving along  X-axis  with constant velocity  v ,  i . At  x = 0 , it enters into a region where a unif

What do you mean by forging, With the help of neat diagrams show various ro...

With the help of neat diagrams show various roll arrangement used in rolling mills. What do you mean by forging? With the help of a diagram differentiate between press forging and

Calculate the survival function and expected value, Question Suppose T ...

Question Suppose T 1 and T 2 are independent and identically distributed Exponential variables with common hazard λ. What is the density of T = T 1 + T 2 ? What is the E(T-1

Jominy test, Jominy Test: Additionally convenient laboratory test for ...

Jominy Test: Additionally convenient laboratory test for harden-ability is Jominy test. A standard test piece of steel as illustrated in figure of The Jominy Test of Harden-ab

Constant pressure cycle, Diesel (Constant Pressure Cycle): 5-1...

Diesel (Constant Pressure Cycle): 5-1 Suction Stroke at constant pressure 1-2 Adiabatic Compression 2-3 Heat Addition at constant pressure 3-4 Adiabatic Expan

Two possible materials for casing, Two Possible Materials for Casing T...

Two Possible Materials for Casing Two possible materials for the casing would be a. Polypropylene or b. An aluminium 1/3 per cent silicon-casting alloy (LM6). Conclu

Compare petrol engine with diesel engine, Compare Petrol engine with Diesel...

Compare Petrol engine with Diesel engine with each other ( i ) Basic cycle: Petrol Engine work on Otto cycle whereas Diesel Engine work on diesel cycles. ( i i )

Explain the intensive properties of a system, Explain the Intensive Propert...

Explain the Intensive Properties of a System Intensive properties are those, which have similar value for any part of the system or the properties which are independent of the

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