Specific heat of gases, Specific Heat at Constant Volume (cv), Specific Heat at Constant pressure (cP), Why Cp is greater than Cv, Applications of First Law oF Thermodynamics, Mayer's relation, Indicator diagram (P-V diagram)
Work done during an Isothermal Change, Relation between P & V for Adiabatic Process, Relation between T & V for Adiabatic Process, Relation between P & T for Adiabatic Process, Work done during an Adiabatic Change, Thermodynamic Equilibrium, Reversible Process, Irreversible Process, Difference between Reversible Process and Irreversible Process,
Specific heat of gases, Specific Heat at Constant Volume (cv), Specific Heat at Constant pressure (cP), Why Cp is greater than Cv, Applications of First Law oF Thermodynamics, Mayer's relation, Indicator diagram (P-V diagram)
Work done during an Isothermal Change, Relation between P & V for Adiabatic Process, Relation between T & V for Adiabatic Process, Relation between P & T for Adiabatic Process, Work done during an Adiabatic Change, Thermodynamic Equilibrium, Reversible Process, Irreversible Process, Difference between Reversible Process and Irreversible Process,
Thermodynamics is a branch of science concerned with heat and temperature and their relation to energy and work.he behavior of these quantities is governed by the four laws of thermodynamics.
For more such informative content, go to https://scifitechify.blogspot.com/.
This PPT is about thermodynamics. It explains isothermal, isobaric, adiabatic, and isochoric processes. In-depth explanation of formulae and derivation is provided.
Basic Terminology,Heat, energy and work, Internal Energy (E or U),First Law of Thermodynamics, Enthalpy,Molar heat capacity, Heat capacity,Specific heat capacity,Enthalpies of Reactions,Hess’s Law of constant heat summation,Born–Haber Cycle,Lattice energy,Second law of thermodynamics, Gibbs free energy(ΔG),Bond Energies,Efficiency of a heat engine
Subject: ME8391 Engineering Thermodynamics
Topic: Basic Concepts & First law of Thermodynamics
B.E. Mechanical Engineering
Second year, III Semester.
[Anna University R-2017]
Thermodynamics is a branch of science concerned with heat and temperature and their relation to energy and work.he behavior of these quantities is governed by the four laws of thermodynamics.
For more such informative content, go to https://scifitechify.blogspot.com/.
This PPT is about thermodynamics. It explains isothermal, isobaric, adiabatic, and isochoric processes. In-depth explanation of formulae and derivation is provided.
Basic Terminology,Heat, energy and work, Internal Energy (E or U),First Law of Thermodynamics, Enthalpy,Molar heat capacity, Heat capacity,Specific heat capacity,Enthalpies of Reactions,Hess’s Law of constant heat summation,Born–Haber Cycle,Lattice energy,Second law of thermodynamics, Gibbs free energy(ΔG),Bond Energies,Efficiency of a heat engine
Subject: ME8391 Engineering Thermodynamics
Topic: Basic Concepts & First law of Thermodynamics
B.E. Mechanical Engineering
Second year, III Semester.
[Anna University R-2017]
process, Thermodynamic process,workdone, relation between pressure volume,first law of thermodynamic,need of second law,statement of second law,carnot heat engine,efficiency,numericals
Wind Energy harvesting: Fundamentals of Wind energy, Wind Turbines and different
electrical machines in wind turbines, Power electronic interfaces, and grid
interconnection topologies
b. Piezoelectric Energy harvesting: Introduction, Physics and characteristics of
piezoelectric effect, materials and mathematical description of piezoelectricity,
Piezoelectric parameters and modeling piezoelectric generators, Piezoelectric energy
harvesting applications, Human power
c. Electromagnetic Energy Harvesting: Linear generators, physics mathematical models,
recent applications,
d. Carbon captured technologies, cell, batteries, power consumption
e. Environmental issues and sustainability of renewable energy sources,.
3.ocean, geothermal, hydro and biomass energy resourcesDrPriteeRaotole
Ocean Energy: Ocean Energy Potential against Wind and Solar, Wave Characteristics
and Statistics, Wave Energy Devices.
Tidal energy,Tide characteristics and Statistics, Tide Energy Technologies, Ocean
Thermal Energy, Osmotic Power.
b. Geothermal Energy: Geothermal Resources, Geothermal Technologies.
c. Hydro Energy: Hydropower resources, hydropower technologies, environmental impact
of hydro power sources.
d. Biomass energy: biomass, biochemical conversion, biogas generation, Ocean biomass
Solar energy, its importance, storage of solar energy, solar pond, non convective solar pond,
applications of solar pond and solar energy, solar water heater, flat plate collector, solar
distillation, solar cooker, solar green houses, solar cell, absorption air conditioning. Need and
characteristics of photovoltaic (PV) systems, PV models and equivalent circuits, and sun
tracking systems. Solar energy utilization by Solar roof panels.
Classification of Instruments 2 and Dynamic Characteristics of InstrumentDrPriteeRaotole
Classification of Instruments -
Self-generating and
power-operated types,
Contacting and
Non-contacting types
Dynamic Characteristics of Instrument-
Dynamic Characteristics of Zero order Instrument
Dynamic Characteristics of First order Instrument
example of resistance transducer connected to display unit
Dynamic Characteristics of second order Instrument
example of U-Tube Manometer
Functional elements of measurement system-
Basic Functional Elements-
1.Primary sensing element
2. Variable conversion element
3. Variable manipulation element
4. Data transmission element
5. Data storage and playback element
6. Data presentation element
Auxiliary elements-
1. calibration element
2. External power element
3. feedback element
4.microprocessor element
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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.
For more information, visit-www.vavaclasses.com
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
3. Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
4. Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
5. Thermodynamic temperature is the
absolute measure
of temperature and is one of the
principal parameters
of Thermodynamics.
The temperature is a
thermodynamic variable which is
used to represent degree of hotness
or coldness of a body.
Thermodynamic temperature isDr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
6. At this point, absolute zero, the particle
constituents of matter have minimal
motion.
In the quantum mechanical description,
matter at absolute zero is in its ground
state, which is its state of lowest energy.
Thermodynamic temperature is often
also called absolute temperature, for
two reasons:
1.Proposed by Kelvin, that it does not
depend on the properties of a particular
material;
2. That it refers to an absolute zero
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
7. A number of measurement scales have been
invented to measure temperature.
Measurement
Scale
Steam Point
of Water
Ice Point of
Water
Absolute Zero
Fahrenheit 212 32 -460
Celsius 100 0 -273
Kelvin 373 273 0
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
8. Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
9. We know 1st law of thermodynamics
𝑑𝑄 = 𝑑𝑈 + 𝑑𝑊 ---------(1)
Now consider the Isothermal Process
T = constant
For ideal gas
We know U= f(T) so U is also constant
Hence 𝑑𝑈 = 0
So equation (1) becomes
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
10. 𝑑𝑄 = 𝑑𝑊 ---------(2)
This is a process that has 100%
conversion of heat into work.
The gas enclosed in cylinder and
fitted with piston undergoes a
change in its volume from state A to
B.
work done in this process can beDr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
11. During this process due to pressure P some
force is acting on piston is given by F= P x A
by this force piston displace by small
distance dx then work is done
dW= force x displacement
dW= F x dx
dW= P A dx (Adx= dv = change in volume)
dw=pdv
Put this value of dW in equation 2
𝑑𝑄 = 𝑃𝑑𝑉 ---------(3)
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
12. The system has certain properties like
temperature, pressure, volume, etc. The
present values of the properties of the
system are called as thermodynamic
state of system.
Thermodynamic Process
When the system undergoes change from
one thermodynamic state to final state
due change in properties like
temperature, pressure, volume etc, the
system is said to have undergoneDr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
13. Various types of thermodynamic processes
are:
Isothermal process,
Adiabatic process,
Isochoric process,
Isobaric process
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
14. It is change in state of system during which
temperature of system remains constant is
called isothermal change
(T= constant and dT=0).
As temperature remains constant during
this process it obeys the Boyle’s law .i.e.
PV= constant.
In order to perform isothermal process will
have to either add or remove heat from the
gas during the change adding heat energy if
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
15. Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
16. If the gas is compressed dW is positive and
so dQ must be negative as heat energy must
be removed from the gas to keep its
temperature constant.
If the gas is expanded dW is negative and so
dQ must be positive as heat energy must be
supplied to the gas to keep its temperature
constant.
Since the temperature of the gas remains
constantDr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
17. dU = 0.
The first law of Thermodynamics for such a
change becomes
dQ=W ------------(4)
Hence in isothermal process heat absorbed
totally get converted to workdone.
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
18. An adiabatic process is change in state of
system during which amount of heat
remains constant (Q = constant, dQ = 0).
This change occurs without transfer of heat
or mass of substances between a
thermodynamic system and its
surroundings.
Any process that occurs within a container
that is a good thermal insulator is also
adiabatic.Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
19. Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
20. A system that expands under adiabatic
conditions does positive work, so the internal
energy decreases, and a system that contracts
under adiabatic conditions does negative work,
so the internal energy increases.
Since the amount of heat of gas remains
constant
dQ = 0.
The first law of thermodynamics for such a
change becomes 0=dU+W
Therefore
W= -dU --------------- (5)
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
21. An isochoric process is one where the
volume of the system stays constant.
Again, 'iso' means the same and 'choric'
means volume.
Volume is the amount of space the material
takes up.
So this would be like heating a gas in a
solid, non-expandable container.
The molecules would move faster and the
pressure would increase, but the size of theDr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
22. Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
23. A quantity of heat dQ is supplied to the gas.
To keep the volume of the gas constant, a
small weight is placed over the piston.
The pressure and the temperature of the
gas increase to P + dP and T + dT
respectively.
This heat energy dQ is used to increase the
internal energy dU of the gas.
If heat dQ is absorbed at constant volume
i.e.Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
24. Isochoric change, as dV = 0
(but W=pdV)
so gas does not do any work (dW = 0)
dQ = CvdT
for one mole of a gas
Now, So equation 1.2 becomes
CvdT = dU -----------
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
25. An isobaric process is one where the
pressure of the system stays constant. Iso
means the same, and baric means pressure.
Pressure is related to the amount of force
that the molecules apply to the walls of the
container.
Imagine that you have a gas inside a
movable piston and you heat that gas up.
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
26. Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
27. By heating the gas up you make the
molecules move faster, which would
normally increase the pressure.
But at the same time the piston expands,
increasing the volume and giving the
molecules more room to move.
Since the walls of the container are now
bigger, the pressure can stay the same even
though the molecules are moving faster.
That makes it an isobaric process.
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
28. The additional weight is now removed from the
piston.
The piston now moves upwards through a
distance dx, such that the pressure of the
enclosed gas is equal to the atmospheric
pressure P.
The temperature of the gas decreases due to
the expansion of the gas.
Now a quantity of heat ‘dQ’ is supplied to the
gas till its temperature becomes T + dT.
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,
29. This heat energy is not only used to
increase the internal energy dU of the
gas but also to do external work dW in
moving the piston upwards
Now, heat dQ is absorbed at constant
pressure,
Then dQ = CpdT --------------- (6)
CpdT = dU+ PdV --------------- (7)
Dr. Mrs. Pritee M. Raotole, MGSM’s Arts Science and Commerce,