This document discusses fluid mechanics and properties of liquids. It provides definitions for key terms:
- Fluid mechanics is the study of fluids at rest or in motion. Hydraulics focuses on water behavior.
- Liquids have definite volume and density while gases are readily compressible and can expand.
- Important liquid properties include density, specific weight, viscosity, compressibility, and surface tension.
- Pressure in fluids is caused by the weight of the fluid and depends on depth. It can be measured using devices like manometers.
Strength of Materials Lecture - 2
Elastic stress and strain of materials (stress-strain diagram)
Mehran University of Engineering and Technology.
Department of Mechanical Engineering.
SHEAR STRENGTH THEORY
the shear strength of any material is the load per unit area or pressure that it can withstand before undergoing shearing failure.
Strength of Materials Lecture - 2
Elastic stress and strain of materials (stress-strain diagram)
Mehran University of Engineering and Technology.
Department of Mechanical Engineering.
SHEAR STRENGTH THEORY
the shear strength of any material is the load per unit area or pressure that it can withstand before undergoing shearing failure.
Strength of Materials all formulas in pdf
it subject iosd also klnown as mechanics of Soilid.
in this pdf there are formulas of stress strain springs - closed coil helical spring , open coil helical Springs etc.
Design of riveted joint failures may 2020Gaurav Mistry
Design of rivet joint, failure of rivet and plate under tensile load, rivet joint efficiency, unwin's formula for rivet diameter standard sizes of rivet and rivet holes
. Differentiate Between Column & strut
2. Buckling Load
3. Limitations of Euler’s Formula
CONTENTS
Strut
Column
Differentiate Between Column & Strut
Failure Of Column Or Strut
Long Column
Short Column
Buckling Load
Column End Condition And Effective Length
What Is Euler’s Formula
Some Assumptions Of The Euler’s Formula
Euler’s Formula
Limitation Of Euler’s Formula
Bending Stresses are important in the design of beams from strength point of view. The present source gives an idea on theory and problems in bending stresses.
Strength of Materials all formulas in pdf
it subject iosd also klnown as mechanics of Soilid.
in this pdf there are formulas of stress strain springs - closed coil helical spring , open coil helical Springs etc.
Design of riveted joint failures may 2020Gaurav Mistry
Design of rivet joint, failure of rivet and plate under tensile load, rivet joint efficiency, unwin's formula for rivet diameter standard sizes of rivet and rivet holes
. Differentiate Between Column & strut
2. Buckling Load
3. Limitations of Euler’s Formula
CONTENTS
Strut
Column
Differentiate Between Column & Strut
Failure Of Column Or Strut
Long Column
Short Column
Buckling Load
Column End Condition And Effective Length
What Is Euler’s Formula
Some Assumptions Of The Euler’s Formula
Euler’s Formula
Limitation Of Euler’s Formula
Bending Stresses are important in the design of beams from strength point of view. The present source gives an idea on theory and problems in bending stresses.
everything about fluids including the instruments used to calculate press. ,temp.,density etc. Enjoy the presentation. I hope you are satisfied with it . And please let me know about how was the power point presentation. Thank You.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
2. Fluid Mechanics :- It is a branch of Science which
deals with the study regarding the behavior of fluids
at rest or in motion.
Hydraulics :- It is a branch of fluid mechanics which
deals with study regarding the behavior of water etheir
in rest or in motion.
3. SL.NO LIQUIDS GASES
1 Liquids are compressible Gases are readily compressible
2 Liquids Can’t expand Gases can expand to fill any
volume
3 Liquids have definite volume Gases don’t have definite volume
4 It’s properties don’t affects due to
change in temperature
Properties get affected due to
change in temperature
5 Liquids form free surface in
gravitational field
Gases don’t form free surface
4. Following are the important properties of Liquids.
1) Mass Density or Density :- It is the ratio of mass
per unit volume at standard temperature &
pressure.
it is denoted by ʃ & its unit is Kg/m3
ʃ = m/v
Mass density of water is 1000 Kg/m3
5. 2) Specific Weight or Weight density :- It is defined
as weight per unit volume at standard
temperature & pressure.
It is denoted by “w”
Therefore w= Weight/volume
= mass X g/Volume
w= ʃ x g
Its unit is Kn/m3
The specific weight if water is 9.81 Kn/m3
6. 3)Specific Gravity :- It is the ratio of specific weight of
liquid to the specific weight of water.
It is denoted by “ s ”
Specific gravity = s = Sp. Wt of liquid / Sp. Wt of water
It has no unit.
The Sp. gr of water is 1 & Sp. gr of mercury is 13.6
4) Viscosity :- It is resisting property of the fluid against
the shearing force. It resist one layer over the another
layer.
it is denoted by “Ʈ”
Its unit is N.s/m2
7. 5) Compressibility :- It is the property of fluid by virtue
of which fluid undergoes change in volume under the
action of external pressure is known as compressibilty.
Its is denoted by “K”
K = Compressive stress / volumetric strain
6) Surface tension :- It is the property of liquid which
enables it to resist tensile stress which may be cohesive
or adhesive.
8. 7) Capillarity :- It is the phenomenon by which the
liquid rises or falls into a thin glass tube when it
is dipped into liquid.
It rises when tube is dipped into water.
It falls when tube is dipped into mercury.
9. 8) Vapor pressure :- Liquid evaporates at room
temperature. If the liquid is kept in a closed vessel it
evaporates & the vapor occupies the space above the
liquid surface. This vapor applies a pressure on the
surface of the liquid. This pressure is called vapor
pressure.
9) Specific Volume:- The volume occupied by unit mass
is called Specific volume.
Specific volume is reciprocal of density. It is denoted by
“ v ” therefore v = Vol / mass
Its unit is m3 / Kg
10. When a fluid is contained in a vessel it exerts force at all
points on the sides & at the bottom of container, the
direction force is normal to the surface.
Fluid pressure is the force per unit area
Pressure , p = F / A
The unit of pressure is kilo pascal or N/mm2
The fig shows different shapes of
containers which is filled with same
liquid , even though the shape is
different it exerts same pressure at a
particular depth of liquid.
therefore
intensity pressure = p = w X h
& pressure head = h = p / w
11. The pressure at any point on the earth surface depends
upon height of air column above it. The pressure is
measured with reference to some arbitrary datum.
The different types of pressures are
1) Atmospheric pressure:- The air & other gases
possess weight & hence it must exert some intensity of
pressure.
the weight of air column above unit area of earth’s
surface is called atmospheric pressure. It varies with
the height. It measured by Barometer.
Atmospheric Pressure = 101.3 kn/m2 or 101.3 Kpa
= 10.33 metres of water
= 760 mm of mercury
12. 2)Absolute Pressure :- When the pressure is
measured above the absolute zero as a datum,
then the pressure is called absolute pressure.
3) Gauge Pressure : - When the pressure is
measured above or below the atmospheric
pressure, then such a pressure is called Gauge
pressure. It is measured with the help of pressure
measuring devices in which the atmospheric
pressure is taken as datum.
4) Vacuum pressure :- The pressure of the fluid
below the atmospheric pressure is know as
vacuum pressure.
13. The relation between absolute pressure, gauge pressure &
Vacuum pressure is as follows.
Absolute Pressure = Atmospheric Pressure + Gauge Pressure
14. The pressure of the fluid is measured by the following
devices.
1) Manometer
2) Mechanical Gauges
1) Manometers :- Manometers are the devices which
are used for measuring the pressure of a fluid at a
point by balancing the another of fluid.
The manometers classified as
a) Piezometer (b) U-tube manometer (c)Differential
manometer
15. a) Piezometer :- Piezometer is the simplest form os
manometer used for measuring low pressure of
liquids. It consists of a glass tube whose one end is
connected to a point where pressure is to be
measured & other end remains open to atmosphere
as shown below.
The pressure at any point in the
liquid is determined by the
height of the liquid in the
tube above that point.
Pressure at a point ‘A’ = p = wh
Where, w = Sp.wt of liquid
h = Ht of liquid column.
16. b) U-Tube Manometer :- It consists of U shape glass
tube whose one end is connected to a point where
pressure is to be measured & the other end
remains open to atmosphere as shown below.
The tube contains mercury whose Sp.gr is 13.6.
the positive gauge pressure of the manometer is
given by
h = h2s2 – h1s1 mtr of water
17. For negative gauge pressure of the manometer
h = -(h1s1 +h2s2) mtr of water
c) Differential manometer :- It is used to measure
the pressure difference between two points of the
same pipe or different pipe. The manometer
consist of a U-tube containing mercury.
The difference of pressure between the two points
is calculated by using the formula
hA – hB = h(s-s1) mtr of water
18. Advantages of Manometer :-
1) Manometers have good accurcy.
2) These are not affected by vibration.
3) They are easy to fabricate.
4) They are inexpensive.
5) They have high sensitivity.
6) They requires less maintenance.
7) They are suitable for low pressure.
19. Difference between Simple manometer &
Differential Manometer
Sl.No Simple manometer Differential manometer
1 One limb is connected to the
point & another is open to air.
Both limbs are connected to
the points
2 It is used to measure pressure at a
point .
It is used to measure
pressure between two
points.
3 The pressure at a point is
obtained in terms of difference of
level of fluid flowing in the pipe.
The difference of pressure is
obtained in terms of
difference of levels of
manometric liquid.
4 It can be manometers like
piezometer or U-tube
manometer.
It can be manometer like
Differential U-tube.
20. When the lamina or body is immersed in
fluid, it exerts a pressure on the body which
depends upon the depth of immersion, area of
body & specific weight of fluid. The whole pressure
will act at a single point on the body. So we have to
calculate the total pressure on the body & the
position of center of pressure.
21. Total Pressure :- It is defined as the force exerted by a
static fluid on a surface either plane or curved, when the
fluid makes contact with the surface. It is always
perpendicular to the surface.
Total pressure P = wAẌ
Where , W = Sp.wt of liquid
A = Area of lamina ,
Ẍ = Depth of center of gravity of area from free liquid
surface.
Center of Pressure :- It is a point on the immersed surface
at where the resultant of all the hydrostatic pressure acts.
It is expressed in terms of depth from the free liquid
surface.
Depth of center pressure = Ћ = (IG / AẌ) + Ẍ