mesin

1. Mesin-Mesin Konversi
Energi
M. Yasep Setiawan, S.Pd., M.T.
Dasar-Dasar Otomotif

2. Macam-Macam Energi
Energi :
Adalah kemampuan untuk melakukan usaha.
Energi bersifat abstrak yang sukar dibuktikan tetapi dapat
dirasakan adanya
Menurut hukum Termodinamika Pertama :
Energi bersifat kekal. Energi tidak dapat diciptakan dan
tidak dapat dimusnakan, tetapi dapat berubah bentuk
(konversi) dari bentuk energi yang satu ke bentuk energi
yang lain.

3. Macam-Macam Energi
Energi Potensial Merupakan energi karena posisinya di tempat yang
tinggi. Contohnya air waduk di pegunungan dapat dikonversi menjadi
energi mekanik untuk memutar turbin, selanjutnya dikonversi lagi
menjadi energi listrik

4. Macam-Macam Energi
Energi Kinetik Merupakan energi yang dimiliki oleh suatu benda karena
gerak yang dilakukan atau dialaminya. semua benda yang bergerak, sudah
pasti memiliki energi kinetik. Energi kinetik dipengaruhi oleh massa dan
kecepatan suatu benda saat bergerak.

5. Macam-Macam Energi
Energi mekanik merupakan energi gerak, missal turbin air akan
mengubah energi potensial menjadi energi mekanik untuk memutar
generator listrik
EM = Ek + EP
EM = Energi Mekanik (J)
Ek = Energi Kinetik (J)
EP = Energi Potensial (J)

6. Energi mekanik = Energi Kinetik + Energi Potensial

7. Macam-Macam Energi
Energi Listrik adalah energi yang
berkaitan dengan arus elektron,
dinyatakan dalam watt-jam atau
kilo watt-jam.
Energi termal adalah bentuk energi dasar
dengan kata lain, semua bentuk energi dapat
dikonversi secara penuh ke energi ini. Energi ini
berkaitan dengan getaran atom dan molekular.

8. Macam-Macam Energi
Energi elektromagnetik merupakan bentuk energi yang berkaitan
dengan radiasielektromagnetik.
Energi kimia merupakan energi yang keluar sebagai hasil interaksi
elektrondimana dua atau lebih atom/molekul berkombinasi sehingga
menghasilkan senyawa kimia yang stabil. Energi kimia hanya dapat terjadi
dalam bentuk energi tersimpan.
Energi nuklir adalah energi dalam bentuk energi tersimpan yang
dapat dilepas akibat interaksi partikel dengan atau di dalam inti
atom.
Energi angin merupakan energi yang tidak akan habis, material
utama berupaangin dengan kecepatan tertentu yang mengenai
turbin angin sehingga menjadi gerak mekanik dan listrik.

9. Contoh Energi

10. Contoh Energi

11. Motor Bakar
Motor bakar adalah mesin atau pesawat yang mengubah
energi kimia dari bahan bakar menjadi energi Mekanik
pada gerakan naik turun piston. Dimana energi kimia dari
bahan bakar tersebut menghasilkan energi panas dan
menggunakan energi tersebut untuk melakukan kerja
mekanik.
Jika ditinjau dari cara memperoleh energi termal ini (proses
pembakaran bahan bakar), maka motor bakar dapat dibagi
menjadi 2 golongan yaitu: motor pembakaran luar dan
motor pembakaran dalam.

12. Motor Bakar
Motor pembakaran luar (external Combustion Engine)
Pada motor pembakaran luar ini, proses pembakaran bahan bakar terjadi
di luar mesin itu, sehingga untuk melaksanakan pembakaran digunakan
mesin tersendiri. Panas dari hasil pembakaran bahan bakar tidak langsung
diubah menjadi tenaga gerak, tetapi terlebih dulu melalui media
penghantar, baru kemudian diubah menjadi tenaga mekanik. Misalnya
pada ketel uap dan turbin uap.
Motor pembakaran dalam (Internal Combustion Engine) Pada motor
pembakaran dalam, proses pembakaran bahan bakar terjadi di dalam
mesin itu sendiri, sehingga panas dari hasil pembakaran langsung bisa
diubah menjadi tenaga mekanik. Misalnya : pada turbin gas, motor bakar
torak dan mesin propulasi pancar gas.

13. Contoh Motor Pembakaran Dalam

14. Contoh Motor Pembakaran Luar

15. Contoh Motor Pembakaran Luar dan Pembakaran Luar

16. Earth
04
You can describe the
topic of the section here
Jupiter
05
You can describe the
topic of the section here
Saturn
06
You can describe the
topic of the section here
TABLE OF CONTENTS
Mercury
01
You can describe the
topic of the section here
Venus
02
You can describe the
topic of the section here
Mars
03
You can describe the
topic of the section here

17. WHOA!
This can be the part of the presentation where
you introduce yourself, write your email…

18. —SOMEONE FAMOUS
“This is a quote, words full of
wisdom that someone
important said and can make
the reader get inspired.”

19. You can enter a subtitle
here if you need it
NAME OF
THE SECTION
01

20. INTRODUCTION
Here you can give a brief description
of the topic you want to talk about.
For example, if you want to talk
about Mercury, you can say that it’s
the smallest planet in the entire
Solar System

21. THE IMPORTANCE OF MACHINES
Do you know what helps you make your point clear?
Lists like this one:
● They’re simple
● You can organize your ideas clearly
● You’ll never forget to buy milk!
And the most important thing: the audience won’t
miss the point of your presentation

22. Neptune is the farthest
planet from the Sun
Saturn is a gas giant and
has several rings
Jupiter is the biggest
planet of them all
Despite being red, Mars
is actually a cold place
Venus is the second
planet from the Sun
Pulley
Inclined Plane
Mercury is the closest
planet to the Sun
Lever
Screw Wedge Wheel and axle
THE SIX SIMPLE MACHINES

23. Jupiter is a gas giant and the
biggest planet in the Solar System
Simple machines
Complex machines
Venus has a beautiful name and is
the second planet from the Sun
THE TWO TYPES OF MACHINES

24. Jupiter is a gas giant and
the biggest planet in the
Solar System
Venus has a beautiful
name and is the second
planet from the Sun
FACILITATING WORK IN THREE WAYS
Energy Time
Mars is full of iron oxide
dust, which gives the
planet its reddish cast
Power
01 02 03

25. Venus is the second
planet from the Sun
BIG POSSIBILITIES
Saturn
Saturn is a gas giant
and has several rings
Neptune
Neptune is the farthest
planet from the Sun
Jupiter
Jupiter is the biggest
planet of them all
Venus

26. A PICTURE
REINFORCES
THE CONCEPT
Images reveal large amounts of
data, so remember: use an image
instead of a long text. Your
audience will appreciate it

27. A PICTURE IS
WORTH A
THOUSAND
WORDS

28. AWESOME
WORDS

29. IF YOU NEED A GRAPH
Follow the link in the graph
to modify its data and then
paste the new one here.
For more info, click here
70%
Mercury
Mercury is the closest
planet to the Sun
70%
30%
Jupiter is the biggest
planet of them all
Jupiter
Neptune
Neptune is the farthest
planet from the Sun

30. WHEEL AND AXLE COMMON USES
Mercury
Mercury is the closest
planet to the Sun
Jupiter
Jupiter is the biggest
planet of them all
Neptune
Neptune is the farthest
planet from the Sun
75% 85% 90%

31. Wheel
Jupiter is the biggest
planet of them all
Lever
Saturn is a gas giant
and has several rings
SOME BICYCLE SIMPLE MACHINES
Pulley
Mercury is the closest
planet to the Sun

32. Lever
Pulley
Screw
Wedge
Wheel and axle
SIMPLE MACHINES IN INVENTIONS

33. MAYBE YOU NEED A MAP
Jupiter
Jupiter is the biggest
planet of them all
Saturn
Saturn is a gas giant
and has several rings

34. The Earth is the third
planet from the Sun
THE HISTORY OF SIMPLE MACHINES
Venus is the second
planet from the Sun
Lever
Saturn is a gas giant and
has several rings
Pulley
Wheel and Axle
Jupiter is the biggest
planet of them all
Screw
200 B.C.
1.000 B.C.
3,500 B.C.
5,000 B.C.

35. 150,000
Big numbers catch your audience’s attention

36. 9h 55m 23s
Is Jupiter's rotation period
386,000 km
Is the distance between Earth and the Moon
333,000,000
Earths is the Sun’s mass

37. Jupiter is a gas giant and the
biggest planet in the Solar
System. It's the fourth-brightest
object in the night sky
Magnitude of force Distance of force
Venus has a beautiful name and
is the second planet from the
Sun. It’s terribly hot, even hotter
than Mercury
WHY MACHINES MAKE WORK EASIER

38. WHEEL AND AXLE IN BIG MACHINES
Venus is the second
planet from the Sun
Bulldozer
Neptune is the farthest
planet from the Sun
Crane Truck
Jupiter is the biggest
planet of them all
Road Roller

39. SIMPLE MACHINES EXAMPLES
Inclined plane Lever Pulley
● Here you can list the
examples
● Here you can list the
examples
● Here you can list the
examples
● Here you can list the
examples
● Here you can list the
examples
● Here you can list the
examples
Screw Wedge Wheel and axle
● Here you can list the
examples
● Here you can list the
examples
● Here you can list the
examples
● Here you can list the
examples
● Here you can list the
examples
● Here you can list the
examples

40. Saturn
Saturn is a gas giant
and has several rings
Jupiter
Jupiter is the biggest
planet of them all
Earth
The Earth is the
planet we live on
Venus
Venus is the second
planet from the Sun
THE POSITIVE IMPACT
50% 75%
60% 80%

41. Venus is the second
planet from the Sun
MACHINES IN EVERYDAY LIFE
Saturn
Saturn is a gas giant and
has several rings
Neptune
Neptune is the farthest
planet from the Sun
Jupiter
Jupiter is the biggest
planet of them all
Venus

42. FORKLIFT: A TECHNOLOGICAL LEVER
Venus is the second
planet from the Sun
Lever
Jupiter is the biggest
planet of them all
Wheel and axle
The Earth is the third
planet from the Sun
Pulley
Saturn is a gas giant
and has several rings
Screw

43. Despite being red, Mars
is actually a cold place
Mars
Neptune
Neptune is the farthest
planet from the Sun
INVENTING WITH SIMPLE MACHINES
Saturn
Saturn is a gas giant
and has several rings
Mercury
Mercury is the closest
planet to the Sun

44. ● Saturn is a gas giant
and has several rings
● Venus is the second
planet from the Sun
● Jupiter is the biggest
planet of them all
● Saturn is a gas giant
and has several rings
● Venus is the second
planet from the Sun
● Jupiter is the biggest
planet of them all
INVENTIONS MAKE LIFE EASIER
Dump truck Mixer truck
● Saturn is a gas giant
and has several rings
● Venus is the second
planet from the Sun
● Jupiter is the biggest
planet of them all
Excavator

45. You can speak a bit
about this person here
You can speak a bit
about this person here
OUR TEAM
Jenna Doe Susan Bones
You can speak a bit
about this person here
Timmy Jimmy

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48. TABLET APP
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