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Search took 0.00 seconds. Search: Posts Made By: avanti
Forum: General Discussion Forum 03-22-2019, 01:55 PM
Replies: 154
Views: 32,319
Posted By avanti
Of course it does, but only for marques which...

Of course it does, but only for marques which have chosen to sacrifice quality for volume. But correlation does not prove causation. Technology always increases--that is why our lives are better than...
Forum: General Discussion Forum 01-14-2018, 04:49 PM
Replies: 154
Views: 32,319
Posted By avanti
Underhood generators and voltstart are two...

Underhood generators and voltstart are two completely different issues:

Your source's claim is totally false WRT the former. The engines are explicitly designed with provisions for such a takeoff,...
Forum: General Discussion Forum 12-20-2017, 02:03 PM
Replies: 154
Views: 32,319
Posted By avanti
Well, at the risk of drifting into exotic...

Well, at the risk of drifting into exotic territory:
For all practical purposes, ALL energy used for any kind of work ends up as waste heat. The Second Law guarantees it. Most of the energy that...
Forum: General Discussion Forum 12-19-2017, 11:12 PM
Replies: 154
Views: 32,319
Posted By avanti
Yes, I know. But all that generated energy will...

Yes, I know. But all that generated energy will be USED somewhere, and so will end up almost entirely as waste heat escaping into the environment, no? It has to go somewhere. Seems to me that the...
Forum: General Discussion Forum 12-19-2017, 10:02 PM
Replies: 154
Views: 32,319
Posted By avanti
I don't think I was clear: Won't the heat...

I don't think I was clear:
Won't the heat released directly from all this "free" electricity add dramatically to the earth's thermal problem? Energy is energy, whether it comes from the sun or from...
Forum: General Discussion Forum 12-19-2017, 09:26 PM
Replies: 154
Views: 32,319
Posted By avanti
You would only need four if you are consuming...

You would only need four if you are consuming 800A all the time. Fuel cells are generally used as battery chargers. You should be comparing it to your under-hood generator, not your battery. Their...
Forum: General Discussion Forum 12-19-2017, 08:51 PM
Replies: 154
Views: 32,319
Posted By avanti
So, if we have an unbounded source of cheap,...

So, if we have an unbounded source of cheap, nuclear energy, doesn't that lead to the mother of all global-warming problems? It would just cut out the solar/carbon middleman.
Forum: General Discussion Forum 12-19-2017, 08:49 PM
Replies: 154
Views: 32,319
Posted By avanti
Speak for yourself, please! ;)

Speak for yourself, please! ;)
Forum: General Discussion Forum 12-02-2017, 08:17 PM
Replies: 154
Views: 32,319
Posted By avanti
It is relevant as an existence proof of an...

It is relevant as an existence proof of an extremely effective system that is also grossly inefficient. Efficiency is always desirable, it is often not necessary. Batteries and hydrogen storage...
Forum: General Discussion Forum 12-02-2017, 06:32 PM
Replies: 154
Views: 32,319
Posted By avanti
I agree with your conclusion, but not your...

I agree with your conclusion, but not your arguments. The efficiency issue is totally beside the point. This is why I cited the photosynthesis benchmark. It is a rather successful process, despite...
Forum: General Discussion Forum 12-02-2017, 04:51 PM
Replies: 154
Views: 32,319
Posted By avanti
I am not particularly a fan of hydrogen, and I am...

I am not particularly a fan of hydrogen, and I am aware that Elon calls them "fool cells". However, I think the argument that low absolute conversion efficiency automatically disqualifies the...
Forum: General Discussion Forum 12-02-2017, 04:39 PM
Replies: 154
Views: 32,319
Posted By avanti
Yes. In addition, the source of hydrogen can...

Yes. In addition, the source of hydrogen can evolve over time. The source of gasoline cannot. This is why the arguments of the form "battery/hydrogen... pollutes just as much as as oil because we...
Forum: General Discussion Forum 12-02-2017, 12:30 AM
Replies: 154
Views: 32,319
Posted By avanti
I'm not saying such technology wouldn't be...

I'm not saying such technology wouldn't be useful, or necessarily even that there wouldn't be a market. I am simply predicting that it likely won't attract R&D funding.

No bucks, no Buck Rogers.
Forum: General Discussion Forum 12-01-2017, 10:37 PM
Replies: 154
Views: 32,319
Posted By avanti
For better or worse, I very much doubt that any...

For better or worse, I very much doubt that any kind of novel engine technology involving fossil fuels is likely to get much R&D money going forward. Least of all one this specialized.
Forum: General Discussion Forum 11-30-2017, 07:10 PM
Replies: 154
Views: 32,319
Posted By avanti
Even that isn't necessarily true in a modern...

Even that isn't necessarily true in a modern system. The same ECU that determines the instantaneous output of the alternator via the LIN also knows when the electric heater and glow plugs are on. It...
Forum: General Discussion Forum 11-29-2017, 07:24 PM
Replies: 154
Views: 32,319
Posted By avanti
What you describe is exactly the setup I have....

What you describe is exactly the setup I have. Van came with a genset, two batteries, and a large inverter. I added two more batteries and then a second alternator. The genset is still there. The...
Forum: General Discussion Forum 11-29-2017, 01:00 PM
Replies: 154
Views: 32,319
Posted By avanti
Nothing enforces it (except perhaps the MB...

Nothing enforces it (except perhaps the MB bureaucracy to the upfitters). It is an engineering spec. Violate it at your peril. Note that Sprinters have had LINbus-controlled alternators for many...
Forum: General Discussion Forum 11-25-2017, 07:12 PM
Replies: 154
Views: 32,319
Posted By avanti
I asked this question over at Sprinter Source a...

I asked this question over at Sprinter Source a few years ago (you participated in the thread:whistling:). Graphite Dave responded as follows:



If this is accurate and I understand him...
Forum: General Discussion Forum 11-24-2017, 04:46 PM
Replies: 154
Views: 32,319
Posted By avanti
Just remember that modern vehicles have...

Just remember that modern vehicles have highly-engineered intelligent charging systems intended to save fuel and improve performance. Generally speaking, taking large amounts of power from them will...
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