Combustion

12
Combustion Reactions Josselyn Galvez

Transcript of Combustion

Page 1: Combustion

Combustion Reactions

Josselyn Galvez

Page 2: Combustion

what are the different types of chemical reactions?• Combustion Reaction• Synthesis Reaction• Decomposition Reaction• Single Replacement

Reaction.• Double Replacement

Reaction.• Energy of Chemical

Reactions• Endothermic Reactions•  Exothermic Reactions

http://www.schools.utah.gov/curr/science/sciber00/8th/matter/sciber/chemtype.htm

 

               http://staff.um.edu.mt/jgri1/teaching/che2372/notes/10/10_16.gif

Page 3: Combustion

what is a combustion reaction ?

A combustion reaction is when all substances in a compound are combined with oxygen, which then produces carbon dioxide and water. It is usually called burning, it occurs mostly in automobiles, homes, and in factories  http://library.thinkquest.org/2923/react.html

               http://www.elcosh.org/record/document/494/image3.jpg

Page 4: Combustion

what is the fire triangle ?

The fire triangle is just a simple model to help understand the ingredients that are needed for a fire.   http://en.wikipedia.org/wiki/Fire_triangle 

               http://www.assessco.co.uk/wp-content/uploads/2009/02/fire_triangle_50.png

Page 5: Combustion

what is activation energy ?

Activation Energy is the minimum amount of energy needed to convert a normal stable molecule into a reactive molecule which is also called energy of activation.

http://dictionary.reference.com/browse/+activation+energy+?o=100074

                    http://www.chemgapedia.de/vsengine/media/vsc/en/ch/12/oc/substitution/sn_2/aktivierungsenergie_sn2/tempkurven.gif

Page 6: Combustion

why is heat / energy a necessary part of the fire triangle?Heat / Energy is necessary in the fire triangle because without heat a fire cannot begin and if it cant begin it cant continue. If you remove the heat / energy from a fire the fire wont be able to have a reaction or to even be fire at all.

http://en.wikipedia.org/wiki/Fire_triangle

              http://www.mcgill.ca/files/ehs/graph_firetriangle.gif

Page 7: Combustion

how is the cooktop of your stove a real-life example of a fire triangle ?The cooktop of your stove is a real-life example of the fire triangle because if needs heat , oxygen, and fuel to makes it olates light up . 

My knowledge

&http://en.wikipedia.org/wiki/Fire_triangle

               http://www.geappliances.com/products/introductions/cooktops/gas/images/044147.jpg

Page 8: Combustion

what is combustion engine ?

Combustion engine is an engine in which the combustion of a fuel which usually occurs in air in a combustion chamber. This causes an expansion of high temperatures and pressures of gases which are produced by combustion were force is applied to a moveable part of the engine.

http://en.wikipedia.org/wiki/Internal_combustion_engine

               http://www.aa1car.com/library/engine_rebuild.gif  

Page 9: Combustion

How does a combustion engine work ?

The combustion engine works by putting a tiny amount of high energy fuel like gasoline in a small and enclosed space. An incredible amount of energy released in the form of expanding gas.

http://www.howstuffworks.com/engine1.htm

               http://users.telenet.be/cleanteam/index_bestanden/image997.gif

Page 10: Combustion

How are NASCAR engines different from street car engines that allow them to operate at much higher speeds?

Nascar engines are way different from street car engines because the Nascars have bigger engines as big as 358 cubic inches not many cars have that unless they have a horsepower of 300 , they have extremely radical cam profiles. They can intake and exhaust which are tuned and tested to provide a boost at certain engine speeds. Which normal street cars cant do.  http://auto.howstuffworks.com/question588.htm

   

               http://www.autoweek.com/storyimage/CW/20080723/FREE/553818544/AR-553818544.jpg

Page 11: Combustion

How does nitrous oxide help engines perform better?   Nitrous Oxide helps engines perform better by breaking down the N2O which allows the Oxygen atoms to free their bond to the Nitrogen atoms which is a exothermic reaction which makes the overall power increase. 

http://en.wikipedia.org/wiki/Nitrous

               http://z.about.com/d/chemistry/1/0/o/c/nitrousoxide.jpg

Page 12: Combustion

Documented example

Michael Waltrip is an example of cheating in Nascar cheating because his team and him were penalized for using a fuel additive. Waltrip's team was only one of the five teams busted for breaking the rules before the season even re-opened. This is what Waltrip said "I don't think we'll ever put this behind us, but we'll try to do better in the future," http://www.cbsnews.com/stories/2007/02/15/sportsline/main2480661.shtml

               http://krehus.tripod.com/waltrip_640.jpg