Title: MCL 140 : Engineering Thermodynamics
1MCL 140 Engineering Thermodynamics
Collection of Concepts Evolved out of Biological
Characteristic of Humans Lead to Creation of
Human Dominated Planet..
2An Engineering Domination to Natural
ExpertsRunning Faster
350 km/hr
40 48 km/hr
3An Engineering Domination to Natural
ExpertsSwimming Faster
4An Engineering Domination to Natural
ExpertsFlying Faster
5A Engineering Domination to Natural ExpertsLoad
Carriers
6Cow Brain Protein Could Build Better Batteries
and Solar Cell Cow
- Researchers at Stanford are exploring the idea
that clathrin, a protein found in cow brains, can
form nanostructured inorganic material for use in
solar cells and batteries. - Unlike synthetic materials used in energy tech
that require nasty chemicals and high
temperatures to form specific shapes, clathrin
can be tweaked at room temperature and pressure. - If all goes well, next-generation solar panels
may very well contain traces of cow brain.
7Continuous Evolution of Homo Sapients
- Raw food eating habits to Micro wave based
cooking. - Human and animal vehicles to Automobiles.
- Watching a flying bird to flying like a bird at
high speeds. - Manual machines to Electric appliances.
- Living with available seasonal food to eating
anything at any time. - Spending hours on paper note book calculations to
High speed computing note book. -
-
8Human impact on the environment
- Human impact is called as an anthropogenic
impact. - The term anthropogenic designates an effect or
object resulting from human activity. - The anthropogenic impact on the environment
includes impacts on biophysical environments,
biodiversity and other resources. - The atmospheric scientist Paul Crutzen introduced
the term "anthropocene" in the mid-1970s. - The term is sometimes used in the context of
pollution emissions that are produced as a result
of human activities but applies broadly to all
major human impacts on the environment.
9State of ecosystems, habitats and species
- In the past, human interaction with nature,
enriched the quality and variety of the living
world and its habitats, although having a
disruptive effect on nature. - Today, however, human pressure on natural
environments is greater than before in terms of
magnitude and efficiency in disrupting nature. - The policies pursued in the industry, transport
and energy sectors having a direct and damaging
impact on the nature. - The strong focus of forestry management on
economic targets primarily causes the decline in
biodiversity, soil erosion and other related
effects.
10Manifestations of the degradation
- The clearest manifestations of the degradation of
the natural environment are - Reduction and fragmentation of habitats and
landscapes. - A decreased species diversity, due to reduced
habitable surface area which corresponds to a
reduced "species carrying capacity". - The reduction of the size of habitats also
reduces the genetic diversity of the species
living there. - Loss of Species of Fauna and Flora.
- http//www.hobart.k12.in.us/jkousen/Biology/impact
.html
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12Assam, India Micro Hydro Power Project to
Benefit 38 Families
13 - Inhabitants of a remote village in the rugged,
mountainous terrain of North Cachar Hills are
getting uninterrupted power supply even though it
is not connected by conventional power grid. - This has been made possible by the States first
micro hydro-electricity. - The project generates 6.8 KVA power from a hilly
stream called Boro Robi nullah near the hamlet. - It has a 12-foot-high water reservoir and a
turbine. - This was started as a pilot project with support
from the Army, and following its successful
implementation, we plan to set up more such micro
hydel projects in similar terrain in the
district, HP Rajkumar, Project Director,
District Rural Development Agency (DRDA), NC
Hills, said, adding that a couple of sites had
already been identified for the purpose. - Rajkumar said that the Army engineers designed
the turbine, which cost Rs 1.25 lakh. The Army
has been very enthusiastic about the project and
extended every possible cooperation to us. - We got technical expertise from the IIT-Delhi as
well, he said. - At the moment the project is illuminating 38
households of the village besides a school, a
church, a temple and an auditorium. The
households have two bulbs each.
14Are the Humans created to disrupt the
Nature????!!!???
- Let us understand the special bio-energetic
characteristic of Humans.
15Thermodynamic Classification Living Species
Life on Earth
Autotrophs
Heterotrophs
16Earth, Life and Energy
- Life on Earth is driven by energy.
- Autotrophs take it from solar radiation and
create Energy Reservoirs on Earth.
17Creators and Exploiters of Energy Reservoirs
Heterotrophs take it from autotrophs.
18Carbon Cycle With Autotrophs and Somatic
Heterotrophs
19Energy and Human Evolution
- The humans are extrasomatic heterotrophs.
- The ability to use energy extrasomatically
enables human beings to use far more energy than
any other heterotroph that has ever evolved. - The human population modified more and more of
its environment by using extrasomatic energy to
suit human needs. - The world's present population of over 5.5
billion is sustained and continues to grow
through the use of extrasomatic energy. - The human race expanded its resource base so that
for long periods it has exceeded contemporary
requirements.
20ONE TIME RESOURCE
SOLAR ENERGY
INCOMING RESOURCE
CO2 H2O
PHTOSYNTHESIS
SOLAR RADIATION
WINDS
VEGETATION
Heating of OCEAN S
CLOUDS
CHEMICAL ENERGY
RAINS
FOSSILIZATION
COAL
FOSSIL FUEL
PETROLEUM
NATURAL GAS
21ONE TIME RESOURCE
SOLAR ENERGY
INCOMING RESOURCE
CO2 H2O
PHTOSYNTHESIS
SOLAR RADIATION
WINDS
VEGETATION
OCEAN THERMAL ENERGY
CLOUDS
CHEMICAL ENERGY
RAINS
HYDRO ENERGY
FOSSILIZATION
COAL
FOSSIL FUEL
PETROLEUM
NATURAL GAS
Calorific Value
22Technology Vs Power
Water Mills
Wind Mills
Mechanical Machine free?
Heat Engines
Steam /gas turbines
23Origin of Engineering Thermodynamics
24The Greatest Extra-somatic Action
Discovery of FIRE, FLAME and TORCH
- Fire is a discovery rather than an invention.
- Homo erectus probably discovered fire by
accident. - Fire was most likely given to man as a 'gift from
the heavens' when a bolt of lightning struck a
tree or a bush, suddenly starting it on fire. - The flaming touch and the campfire probably
constituted early man's first use of 'artificial'
lighting. - As early as 400,000 BC, fire was kindled in the
caves of Peking man. - Prehistoric man, used primitive lamps to
illuminate his cave. - Various Oils were used as fuels.
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