quote:

quote:
Regardless of his qualifications, the author is dead wrong.

This may sound ridiculously arrogant for me to say


It does.
Especially since you admit having no actual training or experience in this subject.
And such statements discourage participation by individuals who might be able to explain why the author is correct.

***I explained in plain English exactly why the author is wrong. Rather than face my point head on, you hide behind politics. The guy is wrong because he claims that particles need to drop all the way from the inner surface of the rising wall of oil. This statement is obviously wrong because flow rate can be increased to the point that the particles are barely able to be spun from the oil before the oil is forced over the top lip of the centrifuge, proving that residence time & whether or not particles make it ALL the way from the inner fluid wall to the inner rotor wall are TOTALLY independant of each other.***



Why would those with the experience bother to engage in dscussions with individuals who cannot manage to disscuss a subject without engaging in rude and uncivil behavior.


***Where EXACTLY was I rude & uncivil?***



quote:
Experienced "experts" have been wrong before, particularly here on this forum regarding CF function. (see how nice & civil that was?)



I don't think you understand the concept of civil discussion. "Experts" are not proven wrong by simply insulting them so much they decide to no longer participate in increaingly uncivil discussions.

***Civility doesn't mean always agreeing with other people, it means not being unnecessarilly rude. You were the "expert I was referring to, but then you knew that, didn't you. Sunwizard proved you wrong. There was no insulting involved.***



quote:
That's a completely hollow answer, Dana.


Actually it was a vague answer to an equally vague question. If you expect precise answers you must provide precise questions. And of course if you choose to include rude dialogue with your quesitons you cannot expect those with the answers to reply at all. There is after all no obligation to do so.

***It was a relatively vague answer to a relatively precise question. I even restated the question for you in more detail, but seeing that you were wrong, instead of tackling the question head on, you chose to hide behind this imaginary uncivil attack you accuse me of.***

quote:

Welder,

Let me guess, you have never been wrong before?


***Oh dear, my feelings are hurt! Please be civil!***



Do you understand what a peer reviewed journal is? It is a journal where all of the manuscripts are read by professionals in that particular field, so the information you are getting out of the manuscript has passed through the hands of many individuals and received the OK from all of them. You are not reading a published theoretical claim that someone has just cooked up in his/her basement (or at their computer). There is an extensive review of the theory and its application by like minded professionals before publication is OK'd.


***Yes I know what a peer reviewed journal is. I also know that science is supposed to be self correcting, which leads me to believe that scientists are vulnerable to human error just like everyone else. Unfortunately, the peer review safeguards weren't working when the authors errant was published, otherwise his peers would have noticed his clear mistake.***



Is your livelihood based on your knowledge of centrifugal theory and its applications, have you authored any peer reviewed publications regarding centrifuges, do you have longstanding experience operating multiple types of centrifuges (by the way you still haven't answered my question regarding your experience with a gravity fed CF), do you run a successful centrifuge R&D/manufacturing company, do you have patents on the filtration and separation of materials? Until you can answer any of the above questions with a yes, your theoretical opinions regarding the limitations of centrifuges holds very little water. People will be more inclined to believe you if you perform some research or acquire some experience before you state your opinions as facts while at the same time claiming the professionals in that particular field are wrong.

***The guys statement is OBVIOUSLY wrong to anyone who reads it closely. I already explained why. I honestly believe that you won't see why, and that's why you don't.***



Using an old freezer to extract fats/PHO, you talk about efficiency this is truly the opposite with regards to fuel processing time, space, and energy consumption!

***Several times on this thread I have asked how many rotors full of fat/PHO are in the average drum of WVO. Despite the variance of WVO makeup, mathmatically, there certainly is an average quantity of fat/PHO per drum. All it takes to defeat your CF as a PHO seperator is for there to be more PHO in a drum of WVO than the working fluid capacity of your rotor. Once it is full of PHO, the rest of the incoming PHO will spill into the already seperated oil. An entire drum of WVO could be pumped into a cheap freezer and left to sit for a few days, after which time, a person could easilly seive out the clumped/hardened PHO from the liquid VO. For the money, this would be far cheaper & easier than shelling out $1200 only to have to babysit their CF then clean the PHO out of the rotor every time it gets full.***

quote:

Originally posted by welder:
Here's a fair question for Absolute & Leon that any potential CF customer might want to ask.



Do you offer a warranty & if so:

1. How long is the warranty?

2. Exactly what is covered under your warranty?

quote:

Civility doesn't mean always agreeing with other people, it means not being unnecessarilly rude

quote:

fabricator
Member
Posted 11 February 2009 09:43 PM Hide Post
quote:
Originally posted by welder:
Here's a fair question for Absolute & Leon that any potential CF customer might want to ask.



Do you offer a warranty & if so:

1. How long is the warranty?

2. Exactly what is covered under your warranty?


Why have you made it your mission to destroy this person?
Location: West Michigan | Registered: 26 April 2006

quote:

I'm a veteran of a lot of different forums all over the web, I can honestly say I have never seen such a mountain made of a very small molehill anywhere, anytime.

quote:

Originally posted by welder:
Fabricator, please explain how my asking for warranty information constitutes an attempt to destroy anyone.

quote:

Originally posted by welder:
Why is it that when I point this simple fact out to people that some folks feel this to be some sort of personal attack or uncivil communication?

quote:

Originally posted by Graplr:

quote:

Originally posted by welder:
Fabricator, please explain how my asking for warranty information constitutes an attempt to destroy anyone.

I have a hunch he wasn't referring to one single post but the entire thread's worth of posts you have made.

quote:

I agree with you welder,

I don't have many reasons to remove PHO from WVO. I think hot and fast is the way to go and am a big promoter of robust, automatic two tank systems so prefer to deal with it that way.

However, absolute has found people that want, at least some times, to remove the PHO so the product fills that particular need.

quote:

quote: You are pointing out one simple fact? That is all you are doing? If so you are doing a terrible job at it. As far as I can tell you are trying to nit pick everything. Doesn't seem like one single fact to me.

quote:

Originally posted by welder:

quote:

I agree with you welder,

I don't have many reasons to remove PHO from WVO. I think hot and fast is the way to go and am a big promoter of robust, automatic two tank systems so prefer to deal with it that way.

However, absolute has found people that want, at least some times, to remove the PHO so the product fills that particular need.

Thank you Leon. I appreciate your honesty. If I were buying a CF, I would buy from you, even based on principle alone, even if it cost me an extra $100.00 to do so.

Just to be clear, I'll restate that I think direct drive CFs are excellent tools for oil refinement, I just think that the strengths & weaknesses should be honestly stated upfront, that's all.

For any direct drive CF maker to advertise their product for seperating fat/HO from WVO, they should at least mention that if the customers WVO source typically uses cooking oil with high percentages hydrogentaed VO or fries meats that contain a lot of fat, the customer may need to clean the fat/HO from their rotor multiple times during one seperation session.

The size of the CF supply tank may likely also influence whether multiple cleaning are necessary during one session.