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 maximum allowable internal pressure, Calculate the maximum al...

Calculate the maximum allowable internal pressure to which a cylinder with an internal diameter of 200 mm and external diameter of 300 mm may be subjected if the cylinder is to hav

Objectives of motorcycle repairing , Objectives: After studying this unit ...

Objectives: After studying this unit and subsequent practicing, you should be able to acquire the skills required for troubleshooting of a motorcycle and identify different

Yes, Which type of study require for mechanial engineering

Which type of study require for mechanial engineering

Stress strain curves, Stress Strai n Curves (Tension): When a bar or ...

Stress Strai n Curves (Tension): When a bar or specimen is subjected to a gradually increasing axial tensile load, the strains and stresses can be found out for number of loa

Group technology, what are the limitations of group technology and life cyl...

what are the limitations of group technology and life cyle issues in group technology

Determine product data exchange specifications, Product Data Exchange Speci...

Product Data Exchange Specifications (PDES) By 1984, many of these international efforts had produced enough results to be compared, and an international community was preparin

Numerical problems based on overhanging beam, Numerica l Problems Based on...

Numerica l Problems Based on Overhanging Beam: Q: Draw Shear force diagram for the simply supported beam loaded as shown in the figure given below. Sol.: Let the

Stroke and clearance volume - thermodynamics, Stroke and Clearance Volume: ...

Stroke and Clearance Volume: Stroke The distance traveled by piston from the topmost positions of it (also called Top dead centre TDC ), to its bottom most position (or

Multiple spot welding, Multiple Spot Welding This is a modification of sp...

Multiple Spot Welding This is a modification of spot welding, in which two or more than two welds can be obtained simultaneously from each transformer secondary. For specific pro

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