This document summarizes an industrial seminar on rheology presented by Modh Sudipkumar. It discusses the importance of rheology in industrial processes and its effect on product cost, stability, and recalls. It outlines different types of viscometers and rheometers used in industry and their applications in evaluating stability of formulations like suspensions, emulsions, and ointments. Newer instruments like interfacial shear rheometers and stress rheometers are able to characterize more complex fluid behaviors at interfaces and under varying stresses. Rheology is presented as a rapid screening method to test stability by monitoring changes in storage and loss modulus.
Rheological test can be very helpful tools for polymer processing and development. This presentation is designed to be an informative introduction and guide to rheological tests, and finding correlations between equipment and processing techniques.
This presentation related to molecular diffusion of molecules in gases and liquids. Also includes inter-phase mass transfer and various theories related to it like two film theory, penetration theory and surface renewal theory.
Rheology model 900 viscometer Mud Engineering Exp.Jarjis Mohammed
Rheology model 900 viscometer by jarjis
Experiment Number 7: Rheological Properties using Model 900 Viscometer.
Koya University.
Faculty of Engineering.
Drilling Lab
Supervised By Muhammad Jamal
=============
This a report about Rheological Properties using Model 900 Viscometer.. written by Jarjis Muhammad, Petroleum Engineering Dep. Koya University. For more Information please contact me: www.facebook.com/Jarjis.shaqlawaee
Rheological test can be very helpful tools for polymer processing and development. This presentation is designed to be an informative introduction and guide to rheological tests, and finding correlations between equipment and processing techniques.
This presentation related to molecular diffusion of molecules in gases and liquids. Also includes inter-phase mass transfer and various theories related to it like two film theory, penetration theory and surface renewal theory.
Rheology model 900 viscometer Mud Engineering Exp.Jarjis Mohammed
Rheology model 900 viscometer by jarjis
Experiment Number 7: Rheological Properties using Model 900 Viscometer.
Koya University.
Faculty of Engineering.
Drilling Lab
Supervised By Muhammad Jamal
=============
This a report about Rheological Properties using Model 900 Viscometer.. written by Jarjis Muhammad, Petroleum Engineering Dep. Koya University. For more Information please contact me: www.facebook.com/Jarjis.shaqlawaee
A modern viscometer is a device used to measure the viscosity of a fluid. It works by applying a shear force to the fluid and measuring the resulting torque. The torque is then converted into a viscosity value using a calibration equation. Modern viscometers are highly accurate and can measure viscosity over a wide range of values. They are commonly used in industries such as food, pharmaceuticals, and petrochemicals to ensure the consistency and quality of their products.
Butterfly valves are widely used in hydro power plants to regulate and control the flow
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characteristics. This is a time consuming and costly process. High computing facility along with the use
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such as flow coefficient and head loss coefficient has been determined using CFX 12 for different valve
opening angle as 30°,60°,75°, and 90° (taking 90°as full opening of the valve) for incompressible fluid.
Value of head loss coefficient obtained from numerical analysis has been compared with the
experimental results.
Viscosity and yield point exp. by jarjis
Experiment Number 5: Yield Point.
Koya University.
Faculty of Engineering.
Drilling Lab
Supervised By Muhammad Jamal
Determine Plastic Viscosity, Apparent Viscosity, And Yield point of a drilling fluid (mud) by using Fann VG viscometer.
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This a report about Filtration. written by Jarjis Muhammad, Petroleum Engineering Dep. Koya University. For more Information please contact me: www.facebook.com/Jarjis.shaqlawaee
Analyzing Contact Angle of Different Fluids Present In Petroleum ReservoirsIRJESJOURNAL
Abstract:- The idea behind the current work is determining the contact angle of few different fluids namely water, oil, detergent water and mixture of oil cum water using imaging method. Imaging method provides wettabillity of rock or formation information. Analysis were carried out using metal plate made up of silver. Since contact angle measurement is an important parameter for petroleum reservoir fluids we used contact angle goniometer for accurate analysis.
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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Group Presentation 2 Economics.Ariana Buscigliopptx
Rheology pdf
1. A seminar on
Industrial Aspect
of Rheology
Presented by
Modh Sudipkumar c.
PA /2010 /11
2. Introduction
Rheology is Responsible for any formulation, production, appearance, usage, and
finally affect stability
Affects final cost of product
Class I recalls of Fentanyl Reservoir patches from Innovator and generic
manufacturers
In short………
If a material is pumped, sprayed, extended, extruded, molded, coated, mixed,
chewed, swallowed, rubbed, transported, stored, heated, cooled, aged …
RHEOLOGY is important ….!!
sudip kumar modh 2
3. contents
Viscometer vs. Rheometer
Types of the viscometer used in industry
Characteristics
Application of viscometer in stability and evaluation
Rheology: A Rapid Screening Method for Testing Stability
Latest types of viscometers and Rheometers
sudip kumar modh 3
4. Viscometer vs. Rheometer
• Viscometer: instrument that measures:
viscosity over a limited shear rate range
• Rheometer: instrument that measures:
• Viscosity over a wide range of shear rates, and…
• Viscoelasticity of fluids, semi-solids and solids
http://pioneer.netserv.chula.ac.th/~sanongn1/course.html
sudip kumar modh 4
5. Types of the viscometer used in industry:
Capillary viscometer
Falling sphere viscometer
Cup and bob viscometer
cone and plate viscometer
How will you choose appropriate viscometer?
•Newtonian types of fluids shear rate directly proportional to shear stress
•Instrument are operated at single shear rate can be used
-Capillary viscometer
-Falling sphere viscometer
but these give erroneous result
•Non Newtonian types of fluids shear rate not directly proportional to shear stress
•Instrument are operated at variety of shear rate can be used
-Cup and bob viscometer
-cone and plate viscometer
sudip kumar modh 5
6. Characteristics:
Capillary viscometer
Exp Ostwald viscometer
Based on poiseuille’s equation
According to US pharmacopeia capillary apparatus used for high viscous
methyl cellulose type of solution
Falling sphere viscometer
Exp hoeppler viscometer
Cup and bob viscometer
Exp Couette type
McMichael searle type
Roto viscometer
Brookfield viscometer(rotational type of viscometer)
cone and plate viscometer
Exp ferranti-shirley
sudip kumar modh 6
7. Application of viscometer in stability and evaluation:
1) Polaxomer vehicles
Used in tear solution for treating “dry eye syndrome “
For evaluation computer controlled couette viscometer is used
2) Suppositories
Release and absorption is depend on rectal temperature,
Brookfield viscometer is used study characteristic of triglycerides base at various
temperature
3) Emulsion
Stabilized with triethanolamine stearate at various temperature
Brookfield viscometer is used
4) cosmetic sticks
Ferranti-shirley cone plate viscometer used
Physical pharmacy by martin page 581-582
sudip kumar modh 7
8. 5) Tablet Excipient
Microcrystalline cellulose is used as granulating agent
Mixture torque rheometer is used to measure torque changes as water is added
6)Lamination *
process of lamination various stages
a) softening point of the resin -resin starts to soften and flow as elastic material
drops of viscosity (~107 poise down to 100 to 5000 poise)
b) material is most fluid, and reaction rates start to increase as viscosity starts to build
as the resin starts to gel.
at gel point tan delta is one
parallel plate Rheometer+ is used
*Focus on Rheology By Arlon, Materials for Electronics, Inc .
sudip kumar modh 8
9. +parallel plate Rheometer:
upper plate is attached to transducer to measure torque resulting from
strain upon the sample
system computer compares material stress to input strain and
determines tan delta
or phase angle along with the storage and loss modulus components
sudip kumar modh 9
12. Rheology: A Rapid Screening Method for Testing Stability
• To understand rheology of viscoelastic fluids, frequency dependence of their G'
and G" material functions to be measured
shear storage modulus G'
shear loss modulus G“
sudip kumar modh 12
14. An oscillatory (sinusoidal)
G’
deformation (stress or strain)
is applied to a sample.
the material response
G”
(strain or stress) is measured.
The phase angle δ, or phase
shift, between the deformation
and response is measured.
shear storage modulus G'
shear loss modulus G“
ideal solid, elastic Tan delta= 0º high viscosity
Newtonian fluid Tan delta= 90º low viscosity
http://pioneer.netserv.chula.ac.th/~sanongn1/course.html
sudip kumar modh 14
15. • The ratio of G"/G', known as tandelta is predictive parameter for studying
the storage stability of suspensions
• single rheological test can rapidly predict the stability of a drug suspension
by monitoring the value of a well-defined parameter tan delta#
Tan delta= G"/G'
Tan delta
• *http://www.pharmaceutical-int.com/article/rapid-screening-methods.html
• # http://ciks.cbt.nist.gov/~garbocz/SP946/node11.htm
sudip kumar modh 15
17. Significance of Helipath Stand
substances with yield values unsuitable for viscosity or consistency measurements
with rotational viscometers
rotating spindle, be it cylinder, disc, or paddle, will create channel
Produce negligible and meaningless torque
The Brookfield Helipath™ Stand is designed to slowly lower or raise rotating T-bar spindle
By always cutting into fresh material, the problem of channelling or separating is
eliminated
sudip kumar modh 17
http://www.brookfieldengineering.com/products/accessories/helipath-stand.asp
19. Interfacial Shear Rheometer
Viscoelastic films relationships are nonlinear
intermediate between purely viscous and purely elastic responses in industry and in
biologicals
To define product stability in different industries such as food, petrochemical, cosmetics,
and pharmaceuticals
Application:
Prediction of emulsion, froth and foam stability
Determination of thin film structure
Examination of phase transitions
Real time monitoring of surface reactions
Continuous monitoring of molecule adsorption into interfaces
sudip kumar modh 19
20. 4) STRESSTECH
Where flow characteristic of a material determines its processibility, performance,
and/or consumer acceptance.
Rheological instrumentation for the characterization of polymers-BY STEVEN M. COLO,
sudip kumar modh 20
21. I never did anything worth doing by accident, nor did any of
my inventions come by accident; they came by work
- Thomas Alva Edison
I'm a great believer in luck, and I find, the harder I work, the
more I have of it.
-Thomas Jefferson
Thank u………
sudip kumar modh 21