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

Entropy, Change in entropy for reversible

Change in entropy for reversible

Heat treatment, #question.what are process of annealing? .

#question.what are process of annealing? .

Can you explain investment casting, Q. Can you explain Investment casting? ...

Q. Can you explain Investment casting? -Investment casting produces very high surface quality and dimensional accuracy. -Investment casting is commonly used for precision eq

Use of high temperature materials in furnaces, Q. Use of high temperature m...

Q. Use of high temperature materials in Furnaces? Often, furnace tubing and refractory protected membrane walls are fabricated from plain carbon steel with a minimum of 0.25% c

Grinding wheels, Grinding Wheels Implicated to be rotated at relativel...

Grinding Wheels Implicated to be rotated at relatively high rotational velocities within grinding machines, grinding wheels contain a surface of rotation about a central axis.

What is precipitation, Q. What is Precipitation? Precipitation includes...

Q. What is Precipitation? Precipitation includes rain, snow and hail. The maximum, average, and storm volumes will have an impact on the size and positioning of facilities to c

Illustrate various kinds of control systems, Illustrate various kinds of co...

Illustrate various kinds of control systems. Illustrate several block diagram reduction rules with examples. Determine C/R by using block diagram reduction method.

Process of polymerization, Q. Process of polymerization? The process of...

Q. Process of polymerization? The process of linking together of monomers, that is, of obtaining macromolecules is called "polymerization". It can be achieved by one of the two

Estimate the viscosity of this diluted , A diluted polymer solution with a ...

A diluted polymer solution with a density of 1130 kg/m3 was extruded through a capillary tube of 3.5 mm internal diameter and 1 m long. The following results were obtained at 25°C.

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