Friday, May 24, 2013

FOSSIL FUEL


FOSSIL FUEL

Introduction:

This is a report regarding a research that we as groups at our college have conducted successfully on the types of fuel oils which exist in our world and their properties, characteristics as well as applications in our world. We have conducted experimental tests in a lab to find out the different properties which may lead us to guess the type of fuel oil that we are working on according to certain chemical and physical properties which exclude this type of fuel oil from others existed. Luckily we were able to find out the type of fuel oil we were working on by comparing our data and findings to the real properties of all different types of fuel oils that exist. So let’s take a look first on the background of fossil fuel and the types of fuel oils existed, their characteristics and applications in real life and then talk about the negative impact of fossil fuel on the environment and the living organisms and then mention the alternatives to fossil fuels and finally discuss our experimental test and findings.

People around the world use fuel for energy resources. The non renewable ones which people often use to produce energy are called fossil fuels. It fuels formed by natural processes such as anaerobic decomposition of buried dead organisms (Fossil fuel - Wikipedia, the free encyclopedia 2013). These fuels have unfortunately become so essential in people’s lives and millions of houses and businesses around the globe mainly depend on them for energy. There are many different types of fossil fuels existed in the world. Mainly speaking there are three different types including natural gas, coal and crude oil. A look back at the history of fossil fuels we can easily figure out that places where little animals and populated plants which died and decayed in the underground were believed by scientists to be the home of fossil fuels. This was mainly due to the creation of layers of organic materials which happened when their dead bodies decomposed.

Fuel oil is often referred to the fraction of fuel which is obtained during the distillation of petrol or during the residue of petrol as well. It is a liquid petroleum product which is often burned in a boiler to generate heat and eventually power. One type of fuel oil is diesel. It is made through a long chain of hydrogen. Second type is residual fuel, but it is less used because it high viscosity and it need to heat up by using special heating method before used and it contains high amounts of sulfur which it effect the environment. The common use of this type of oil is that it heats homes and businesses and fuels trucks ships and some cars. A small amount of electricity is produced by diesel, backup fuel for peaking power plants in case the supply of natural gas is interrupted and the main fuel for small electrical generators (Fuel oil - Wikipedia, the free encyclopedia 2013).

Jet fuel or aviation turbine fuel is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colorless to straw-colored in appearance. Jet fuel is a mixture of a large number of different hydrocarbons. Jet oil is commonly used for commercial aviation. It can used in civilian turbine-engine powered aviation is Jet B which is used for its enhanced cold-weather performance (Jet fuel - Wikipedia, the free encyclopedia 2013).

The term turbine oil is often called and referred to any oil that is often found in bearings and machines. Its common uses are to lubricate the bearings and auxiliary machinery and synthetic turbine oils are used in control systems of high-power steam turbines (Turbine Oil definition of Turbine Oil in the Free Online Encyclopedia 2013).

Gear oil is lubricant oil that is often made specifically machineries. Its common uses are mainly for transmissions transfer cases and differentials in automobiles, trucks, and other machinery. It is also used to protect the gears and usually is associated with a strong sulfur smell (Gear oil - Wikipedia, the free encyclopedia 2013).

Transformer oil or insulating oil is usually a highly-refined mineral oil which is more stable at high temperatures and it has good electrical insulating characteristics. It is used in oil-filled transformers and high voltage capacitors fluorescent lamp ballasts (Transformer oil - Wikipedia, the free encyclopedia 2013).



Testing description:

API gravity: after check the temperature by thermometer, use a funnel and pour the sample into the hydrometer cylinder until it is about ¾ full. Then put a hydrometer with an (SG rang 0.8 to 0.9), let it go you can give the hydrometer a small spin to help it stabilize. Finally take reading from hydrometer and make calculation to calculate API gravity. Do it for three times to get more accurate result.

Cloud point: pour the oil sample into the test jar, put the jacket with the test jar and sample into warmest section of the cooler (1.8C), let sample cool. After check the sample every (1C) until found a cloud or haze at the bottom of the test jar. Finally if you see a cloud forming write dawn the temperate. Do it for three times to get more accurate result.

Pour point: pour the first oil sample into the coldest section of the test jar cooler (-34C) and let the sample cool all the way to (-34C) until become solid. Then put the sample into the next section (-18C) and check it every (3C) by taking it out of the copper jacket and tipping it over and watch it for 5 seconds. If the oil starts to flow, you have reached the pour point.


Viscosity: placed 2 viscometers with oil sample into oil path then when oil bath and samples are at the correct temperature you may start talking viscosity measurements by use a stopwatch to time how long it takes for the oil to flow from the top line to the bottom line.


Flash point: First, put the sample on Cleveland Open Cup Apparatus which consist with the cup, heating plate, test flame applicator and heater. Then expose fire into sample until sample start catch the fire. Finally write down the temperate.

 

Refractive index: After put sample in microscope, later when light passes through a medium, some part of it will always be absorbed. This can be conveniently taken into account by defining a complex index of refraction.

Source for all tests (ASTM International - Standards Worldwide 1996)

Experimental data:

 
Physical appearance
Refractive index
API gravity
Viscosity
(cSt)
Flash point
Cloud point
Pour point
TAN
(Total acid  number)
Sample #4
Light yellow
Lubricating oil smell
1.4717
32
40 C= 33.97
100 C= 6.78
207 C
NA
-30 C
0.09
mg KOH/g

 


Viscosity at 40 C:

X
X
(X-X)
(X-X)2
34.1
33.97
0.13
0.0169
33.8
33.97
0.17
0.0289
34
33.97
0.03
9*10-4
 
 
 
0.3068

 


Viscosity at 100 C:

X
X
(X-X)
(X-X)2
6.80
6.78
0.02
4*10-4
6.80
6.78
0.02
4*10-4
6.74
6.78
-0.04
1.6*10-3
 
 
 
2.4*10-3

 


BECAUSE BOTH RESULTE ˂ 2% THAT MEAN BOTH RESULTE ARE PRECISE

Discussion:

I can say that the experimental process as a whole was a successful one indeed. However, few problems occurred and that did not stop us from working on and continuing our analysis and research. One of the problems was mainly happening during the literature research. We had a difficult time finding the same actual results. Every time we surf the net we find different numbers in different websites which really frustrated us. We also had a hard time finding the viscosity of few oils. As for the real lab research we can say that we felt good for our findings. One problem we encountered was that we had to re test the TAN twice because we didn’t find the answer in the computer the first time. Going back to the results and according to the data and findings which we have conducted on our sample we can say that the results are mostly close to the oil of being turbine oil. This was due to different reasoning. Firstly speaking the TAN number which we found was 0.09 and this number is mostly close t Turbine fuel which has a TAN number of 0.08. Secondly speaking the Flash point which we had taken earlier refers to 207 degree and this is a very close result to the flash point of 224 degree of Turbine oil. For the reasons why we didn’t choose other oils to be our sample we can say the following clues and proofs. Firstly it is not gas oil because gas oil has a much less flash point of 66 degrees compared to 207 of our sample. Also it is not jet fuel because the TAN of jet fuel is 0.015 and this number is not even close to 0.09 TAN of our sample. Furthermore, the sample is not transformer oil because the sample is 0.09 compared to 0.014 TAN of transformer oil. Finally it is not gear oil for the same reason. The TAN of gear oil is 0.05 and that also is not close to 0.09 of our sample.

The negative environmental impact of fossil fuel can be summarized by the effect of combustion of these fossil fuels which is considered to be the largest contributing factor to the release of greenhouse gases into the atmosphere. (Every year politicians tell us we are going to cut our reliance on fossil fuels, and every year consumption increases (Fossil Fuels - Environmental Impact of Oil, Petrol, Gas & Coal & Future use | Du La Bab - Now Is The Time 2011). Some of the negative effects of fossil fuel on the environment includes: Air pollution, water pollution, accumulation of solid waste all of which cause human diseases and harm the environment.

There are five alternatives to fossil fuel. These alternatives are firstly solar energy in which the sunshine heats liquid in solar panels and produce energy. Solar energy is expensive! Science is finding a way to make it cheaper than oil or coal, but it will probably take another decade or so (Top 5 Fossil Fuel Alternatives | Hello World! 2008). Another one is wind energy in which wind speeding power is used to move turbines to produce electricity. Thirdly there is the hydroelectric power. In this type of alternatives to fossil fuel the strong current in the river is able to generate electricity. Fourthly there is the geothermal power in which the steam of hot springs is used to turn turbines and produce energy. Finally there is the ocean waves power that can also turn turbines and produce energy.

Conclusion:

In the end we would like to express our deep appreciation for this great chance we were offered to work on one of the most important side of our study and that is how to conduct a real experiment based on scientific research and scientific method. We believe that after conducting this experimental method of identifying a substance according to scientific data we feel much better and proud of our findings. So that makes us point at turbine oil to be our sample.

Based on the literature search and the test we did in the labs. We compared the results to each sample I determine that our sample is turbine oil. 


References:

References

ASTM International - Standards Worldwide. (1996, January 1). ASTM International - Standards Worldwide. Retrieved May 15, 2013, from http://www.astm.org/

Fossil Fuels - Environmental Impact of Oil, Petrol, Gas & Coal & Future use | Du La Bab - Now Is The Time. (2011, January 1). Ethical Living, Environmental Information, Green Building, Eco News, Healthy Food & Medicine | Du La Bab - Now is the time. Retrieved May 14, 2013, from http://www.dulabab.com/energy-transportation/fossil-fuels/

Fossil fuel - Wikipedia, the free encyclopedia. (2013, May 10). Wikipedia, the free encyclopedia. Retrieved May 14, 2013, from http://en.wikipedia.org/wiki/Fossil_fuel

Fuel oil - Wikipedia, the free encyclopedia. (2013, May 4). Wikipedia, the free encyclopedia. Retrieved May 14, 2013, from http://en.wikipedia.org/wiki/Fuel_oil

Gear oil - Wikipedia, the free encyclopedia. (2013, April 2). Wikipedia, the free encyclopedia. Retrieved May 14, 2013, from http://en.wikipedia.org/wiki/Gear_oil

Jet fuel - Wikipedia, the free encyclopedia. (2013, May 13). Wikipedia, the free encyclopedia. Retrieved May 14, 2013, from http://en.wikipedia.org/wiki/Jet_fuel

Top 5 Fossil Fuel Alternatives | Hello World!. (2008, April 22). Hello World! | A Romance With Nature¦. Retrieved May 14, 2013, from http://helloworldbea.wordpress.com/2008/04/22/top-5-fossil-fuel-alternatives/

Transformer oil - Wikipedia, the free encyclopedia. (2013, May 11). Wikipedia, the free encyclopedia. Retrieved May 15, 2013, from http://en.wikipedia.org/wiki/Transformer_oil

Turbine Oil definition of Turbine Oil in the Free Online Encyclopedia.. (2013, January 1). Encyclopedia. Retrieved May 15, 2013, from http://encyclopedia2.thefreedictionary.com/Turbine+Oil

 

 

APA formatting by BibMe.org.

 

Appendix 1:

 
STANDER TEST METHODS
Jet fuel
Gas oil
Transformer oil
Turbine oil
Gear oil
Physical appearance
ASTM D 5531-05
Liquid
Clear liquid
NA
NA
NA
Refractive index
ASTM D 1747-09
1.4511
1.4524
1.4820
 
1.4872
API gravity
ASTM D 1298-99
41.8
36.55
26.4
31
27.0
Viscosity
(cSt)
40C
ASTM D 445-06
NA
NA
10.9
33.97
NA
100C
NA
NA
2.54
6.78
NA
Flash point
ASTM D 93-07
NA
66 C
149 C
224 C
190 – 260 C
Cloud point
ASTM D 2500-05
-30 C
1 C
-5 C
NA
NA
NA
Pour point
ASTM D 97-06
-55 to -44 C
0 C
6 C
-62 C
-29 C
-27 to -3 C
TAN
(Total acid  number)
ASTM D 664-11
Max 0.015 mg KOH/g
0.1   Mg KOH/g
0.5 mg KOH/g
0.014 mg KOH/g
0.08 mg KOH/g
0.05 mg KOH/g

 

 

 

 

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