Good afternoon everybody, my name is Florentin Anggraini Purnama and today I'm going
to present about geothermal system. I am from group 7 and
this presentation is to fulfill my homework in scientific communication class
okay
For this presentation I am going to present 40 slides including references and the
title slides and then this presentation will take approximately 10 minutes and
This presentation is intended for beginner or undergraduate students who are interested in geothermal system
Also if you have any questions then please ask me immediately and
if you would like to know where I
got
my references from it will be provided at the end of this presentation
Now let's go to the first slide. So these are my group 7 members as you can see
with the first is Muhammed Zaki and then Rio Harapan, Venika Sefva, Nabilah Calista
Kurniawan and me Florentin and Erlina
Okay, now before we go into much stuff about geothermal system, I'm going to show you why we chose this topic
The amount of it in 10,000 meters under the earth's surface is equal to
50,000 times energy of oil oil and natural gas resources in the world so you can imagine how immense
potential is and
fortunately india has 40 percent of the world's total potential thus making us the third largest
geothermal producer in the world but there's a catch only five percent of this tremendous potential i suspect exploited
Now we are going
to dive deeper into what geothermal system is so we are going to talk about 4 sub topics. The first is introduction
second is the type of geothermal systems, the third is the automatic origin and the last is the geothermal power plant system
okay now what is geothermal energy
simply put geothermal energy is energy produced and stored in earth and as you can see this is the
picture of the geyser which is
energy when the result of geothermal energy when it comes up to the surface of the earth
and geothermal energy usually comes from the magma layer below earth's crust so you can see here
The outer layer the other two most a year of the earth is actually crust and near mantle and a course
So it's actually below the crust so many bees located around the mantle
next geothermal power is cost effective, reliable
hostile and environmentally friendly therefore making it a very popular research
field because of the tremendous potential that it has. But, there's a catch. It is expensive
to exploit, and to use it
The by done don't be discouraged it means that it is a challenge for you and there's a big chance for you to actually
contribute to this field because of this challenge
now
geothermal energy sources are usually called hot spots
they're usually found in regions with active of geologically young
Volcanoes so it which means that the people for using coal into a return home and resources you
Have to be ready to deal with dangerous situations and they're usually at a tectonic plate boundaries from crust is thin enough
and english is located at a pacific rim therefore making a tremendous source of your thermal energy
Now we are we are going to talk about the type of geothermal systems
So we divide to read about geothermal systems into two types the three types and the topography
Okay and three type i'm going to talk we are actually going to talk more into the compositions whether
there are more fluids or there are more papers and for the topography i'm going to talk about the shape of detailed thermal source
okay
Now, we are going to talk about the fluid type age system the first is dilucca dominated as you can see in the picture there?
are actually many more water in the source and
this water they are because of the heat energy they escape the surface of the earth of the earth
by being a spring therefore being a being of paper
And the second is the vapor dominated as you can see here?
there are actually the paper is actually
form already inside the earth's surface and they just escape
naturally and the third or the last is the dual phase system where vapor and water books exist in the same amount and
Now let's enter the topography bit system so the topography base system is actually about the shape of
the earth's surface which
for which it has your thermal hit
now here the first type is the flat as you can see the surface of the earth is flat and the
Second there's the high terrain as if so the difference with the last slide is that
this is what and this is an easy shop that's all
now, we finished the type of the geothermal system let's enter the geothermal exploration
there are three types geological survey geochemical survey and geophysical survey
now let's go into the first survey which is the geology of geological
So for each survey i'm going
to provide you with two main key points which which are the first is the information obtained from each of three
And the second is the techniques and a toast
okay for geology the surface here are the information that we can obtain and the first is the surface and subsurface mythologies
the second is structural framework third is the automation my neurology and the last is the
permeable zones
look localized and
the techniques and tools are geological mapping since actual observation and exploration cromwell
okay houston my neurology information as you can see in the picture and
The second astir coral core samples
and the mapping
Here is also the mapping, so you can see here if it is green then it means that it's
is
Higher and here it's more optimist and here we are more pessimistic there is service a source
Ok, this is also a geological instruction mapping now let's go into the geochemical sorry
ok
The information obtained from the surface plate source hits source and dressed as you can hear it and
Here are the tactics and tools which are fluid analyzes and i'm going to talk only but with analysis
Now as you can see this reading analyzes so here are some pictures really information isn't in the next line
Ok, here so you can see here inside the food there will be many minerals and salts contained fine and
one of the examples was the c concentration inside water
So if you thought the graph with the silica concentration and the temperature we will we will be able to locate
precisely where not precisely
approximately where it reality geothermal hit sources actually located
and here we have this with inclusion which are microscopic bubbles
Which are trapped within crystals and here the gas concentration mapping so yeah so it's
Getting mapping and finally geophysical survey so instead of
instead of
dividing it down and i'm just going to put them in one nice paragraph here we
we get density from graffiti methods you get susceptibility for magnetic methods and you can just read the rest of the slide
Ok, i'm going to talk about geothermal power plants there are three the first is flash steam the second is dry steam and finally the
last is binary cycle and
sharing the flash steam plant hot water is converted into steam to drive turbine
so
We have to hit the water first and
which will convert it into steam and the steam will be driving the program and the difference between
The first thing and the next team plan which is the dry steam plan is there is no process of conversion
From water into the paper so we immediately use the paper or esteem to drive its program and
Here, we have the binary cycle plan how it was a firm production well transfers its heat to second fluid that is used to drive
The turbine
Now we are going we are finally coming
To the end of the slide so here are the differences please contact me if you want it and
finally
Thank you any questions
