Bio Diesel

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6 Comments

Comment by Jak on October 27, 2008 at 12:10pm

Hello , I want to join this group .So that I can save on the fuel.Thanks whoso ever has started this idea .
Regards
Jak

Comment by Betty on October 14, 2008 at 5:28pm

Sorry for the delay. Was travelling extensively.

Skipper has advised me not to post any DiY how2 since it could be a little dangerous for the unsupervised first timer. But I will post some general details. Just enough for us to keep the discussion alive till 'Funny Farm' is up. Then we can all try it there.

Comment by Chetan Prasad on October 6, 2008 at 10:00am

O Avril, Avril, wherefore art thou Avril?

Comment by Chetan Prasad on October 5, 2008 at 7:22am

While we are all waiting for the elusive Avril, our bio expert, a reply to RV's Q.

Any plant oil, animal fat can be used as fuel. You are referring to SVO (Straight Vegetable Oil), and your concerns are valid. Also these cannot be used directly in diesel engines and require modifications to the engine.

But Bio-diesel is made from WASTE VEGGIE / ANIMAL OIL.
This is essentially transesterification of the used oil from cooking fryers etc. These can be directly used in any diesel engine, ranging from 10% (B-10) to 100% (B-100) blends with diesel. It is clean burning.

* 100% reduction of net carbon dioxide
* 100% reduction of sulphur dioxide
* 40-60% reduction of soot emissions
* 10-50% reduction of carbon monoxide
* a reduction of all polycyclic aromatic hydrocarbons (PAHs) and specifically the reduction of the following carcinogenic PAHs:
* phenanthren by 97%
* benxofloroanthen by 56%
* benz-a-pyrene by 71%
* aldehydes and aromatic compounds by 13%
* 5-10% reduction of nitrous oxide depending on age and tuning of vehicle.


SVO is certainly costlier and has other food supply impacts.
WVO cost mainly depends on source of oil.

Comment by R.Vaidyanathan on October 4, 2008 at 8:44pm

I thought Jatropha was the plant used for making biodiesel. If edible oils are used won't it be costly? Further the oils need to be processed too adding to the cost. Is it not?
RV

Comment by Chetan Prasad on October 3, 2008 at 9:34am

Avril, This is interesting. Please let us know if you have tried making any, if so, what is the process and how easy or difficult is it? These details may induce more membership and discussions.