Efficiency of Indian kino oil as a biodiesel

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Discussion Overview

The discussion centers on testing the efficiency of Indian kino oil as a biodiesel, specifically exploring methods for conducting experiments in a school chemistry lab. The scope includes experimental approaches, measurement techniques, and considerations for defining efficiency.

Discussion Character

  • Exploratory
  • Technical explanation
  • Experimental/applied

Main Points Raised

  • One participant expresses interest in testing the efficiency of Indian kino oil as biodiesel and seeks guidance on how to conduct the experiment in a school lab.
  • Another participant suggests that a chemical purity or quality test may be desired and provides a link to relevant resources.
  • A participant proposes using a calorimeter to measure the energy output of the oil by burning a known amount and heating a specific amount of water, while noting the challenges of accurately capturing heat.
  • Concerns are raised about the precision of calorimetry, highlighting difficulties in capturing all heat and the dependence of burn efficiency on the combustion device used.
  • It is mentioned that combustion heat is typically measured using pressure calorimeters filled with oxygen, which may not be feasible for a school project.
  • One participant considers the experiment reasonable for a school science fair, suggesting comparisons between the energy output of vegetable oil and diesel, while cautioning against using gasoline.
  • A later reply emphasizes the need to define 'efficiency,' questioning whether it refers to combustion in a diesel engine or energy comparison with other fuels, and mentions the need for specialized equipment for certain measurements.

Areas of Agreement / Disagreement

Participants express varying opinions on the feasibility and methods for testing the efficiency of Indian kino oil, with no consensus on the best approach or definition of efficiency. Multiple competing views remain regarding the experimental setup and parameters to consider.

Contextual Notes

Limitations include the potential inaccuracy of calorimetry in a school setting, the need for precise definitions of efficiency, and the requirement for specialized equipment for certain tests.

ash_nar
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I am planning to test the efficiency of Indian kino oil as a biodiesel... How do I do it? I only have access to my school chemistry lab...
 
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If you want to measure the efficency simply in terms of how many Joules/kg you get from the oil you can do it by building a simple calorimter.

- In simple terms you want to burn a known amount of oil and use it to heat a known amount of water. You measure the temperature change of the water and we know how much energy it takes to heat 1kg of water 1 deg C (you can look this up).
In practice it's difficult to do accurately because you have to make sure that none of the heat from the diesel flame escapes, but at the same time allow enough air to reach the flame for it to burn.
 


IANA Chemist, but as I recall calorimetry is notoriously difficult to perform with useful precision? In addition to the problem of capturing all the heat, in this case the diesel burn efficiency will be highly dependent on the device used to burn the fuel.
 


Combustion heat is measured in pressure calorimeters filled with oxygen, that's not a device that you can make out of nothing.

Unless your name is MacGyver.
 


As a school science fair experiment it's reasonable. You could probably compare the energy you get from vegetable oil and diesel - probably not a good idea to try gasoline!
 


ash_nar said:
I am planning to test the efficiency of Indian kino oil as a biodiesel... How do I do it? I only have access to my school chemistry lab...

First, you need to define what you mean by 'efficiency'. Do you mean, "Will it burn in a diesel engine?" or do you mean, "How much more or less energy per gallon does Kino oil-derived biodiesel have than _________?" For the former, you need a diesel engine for the latter you merely need a calorimeter. If you are asking about pertinent fuel parameters (cetane, cloud point, acid number, etc...) consult the appropriate ASTM standard. Lots of specialized ($$$) equipment...
 

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