Notes

AT-1 (Electude Fundamentals)
+Foundation
~Automobile was invented by different people in different country

+Rotary
~turbines
~close cycle turbine
-Router engine- open cycle engine/ gas turbine
-1 kel engine

~Rx-7 Mazda- sasakyan na gumagamit ng 1 kel engine
~reciprocating engine
-stem engine
-sterling engine
-gasoline and diesel engine

-blue- proton
-red- neutron
-green- electron

chemical reaction in the cylinder had 3 components
~hydrogen- color less, odor less, highly flammable
-produce by converting water to oxygen and hydrogen
-electricity is required
-hydrogen powered car is water
-hydrogen powered ca is a nature friendly
~oxygen
~carbon- black
-in combustion chamber or cylinder, nag foform ng block deposit

~combustion- burning of fuel in the engine which is caused by chemical reaction


+There is a spark
-automotive fuel mostly gasoline is made of hydrogen and carbon or known as 'hydro carbon fuel'
-can unite with the third element of 'oxygen'

-produce pressure para gumana o magkaroon ng power ang makina
~may hindi magandang epekto pag malamig pa ang makina
-pag on ng makina diretso andar produces harmful gasses
-mechanical parts of the engine will also be affected
-metal to metal friction that can cause deformation

~Absolute Pressure
~Barometic/Biometric Pressure

~Expansion
~Contracted
-once the air ay pumasok sa cylinder, pag umakyat ang piston icocompress nya yung hangin at fuel sa loob

~Vacuum-
-pag inikot ang fan nakakarinig ng vacuum
-pag tinanggal yung spark plug tas umakyat mismong pataas tinulak na ang hangin na nahigop
+Blue atmospheric pressure
-naipong hangin sa loob
+Green- represents oxygen and fuel na pumasok sa cylinder
-Cam hole
-Spring
-Tappet

-produce chemical reaction/ transfer of heat
-umiinit ang metal or nag eexpand pag mataas ang init(expansion ng metals)
-design to expand
-dahan dahan nag eexpand ang piston head

+Green Cylinder hole (from oval to circle)
-oil umakyat sa cylinder
-causes expansion

-expansion ng fluid kasama ang init (32 degree farenheit)
~Temperature increases, the pressure also increases
-pag malamig si makina, nakailaw yung indicator ibig sabihin malamig ang makina

1st rule: pressure increases with increasing temp
2nd: temp increases pressure also increases

+Thermostat- close yung intake valve
-air mass depend on the air temp, air volume, and temperature
ex: 1 lt of air at 0 dg c/f
29.5 weights hd
moist is constant
p=t*d/temp

+Thermostat na naka attach sa engine

+Vacuum gauge- type of pressure gauge
that measure pressure in a close cage
+Humidity- amount of moisture in the air
-caring a lot of water vapor therefore the air is humid

+Classification of Pollutants in the Engine (kapag hindi maganda ang combustion)

~Dead Center- movement ng piston
-top, bottom, upper top


~BDC had 180 degrees

-hyrocarbon and oxygen unites and produces h2o
-nox and non combusted hydro carbon and carbon monoxide